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-rw-r--r--visualize/static/d3.geom.js835
-rw-r--r--visualize/static/d3.geom.min.js1
-rw-r--r--visualize/static/d3.js4707
-rw-r--r--visualize/static/d3.layout.js1881
-rw-r--r--visualize/static/d3.layout.min.js1
-rw-r--r--visualize/static/d3.min.js2
-rw-r--r--visualize/static/d3.v2.js9342
-rw-r--r--visualize/static/d3.v2.min.js4
8 files changed, 9346 insertions, 7427 deletions
diff --git a/visualize/static/d3.geom.js b/visualize/static/d3.geom.js
deleted file mode 100644
index d860c2bf..00000000
--- a/visualize/static/d3.geom.js
+++ /dev/null
@@ -1,835 +0,0 @@
-(function(){d3.geom = {};
-/**
- * Computes a contour for a given input grid function using the <a
- * href="http://en.wikipedia.org/wiki/Marching_squares">marching
- * squares</a> algorithm. Returns the contour polygon as an array of points.
- *
- * @param grid a two-input function(x, y) that returns true for values
- * inside the contour and false for values outside the contour.
- * @param start an optional starting point [x, y] on the grid.
- * @returns polygon [[x1, y1], [x2, y2], …]
- */
-d3.geom.contour = function(grid, start) {
- var s = start || d3_geom_contourStart(grid), // starting point
- c = [], // contour polygon
- x = s[0], // current x position
- y = s[1], // current y position
- dx = 0, // next x direction
- dy = 0, // next y direction
- pdx = NaN, // previous x direction
- pdy = NaN, // previous y direction
- i = 0;
-
- do {
- // determine marching squares index
- i = 0;
- if (grid(x-1, y-1)) i += 1;
- if (grid(x, y-1)) i += 2;
- if (grid(x-1, y )) i += 4;
- if (grid(x, y )) i += 8;
-
- // determine next direction
- if (i === 6) {
- dx = pdy === -1 ? -1 : 1;
- dy = 0;
- } else if (i === 9) {
- dx = 0;
- dy = pdx === 1 ? -1 : 1;
- } else {
- dx = d3_geom_contourDx[i];
- dy = d3_geom_contourDy[i];
- }
-
- // update contour polygon
- if (dx != pdx && dy != pdy) {
- c.push([x, y]);
- pdx = dx;
- pdy = dy;
- }
-
- x += dx;
- y += dy;
- } while (s[0] != x || s[1] != y);
-
- return c;
-};
-
-// lookup tables for marching directions
-var d3_geom_contourDx = [1, 0, 1, 1,-1, 0,-1, 1,0, 0,0,0,-1, 0,-1,NaN],
- d3_geom_contourDy = [0,-1, 0, 0, 0,-1, 0, 0,1,-1,1,1, 0,-1, 0,NaN];
-
-function d3_geom_contourStart(grid) {
- var x = 0,
- y = 0;
-
- // search for a starting point; begin at origin
- // and proceed along outward-expanding diagonals
- while (true) {
- if (grid(x,y)) {
- return [x,y];
- }
- if (x === 0) {
- x = y + 1;
- y = 0;
- } else {
- x = x - 1;
- y = y + 1;
- }
- }
-}
-/**
- * Computes the 2D convex hull of a set of points using Graham's scanning
- * algorithm. The algorithm has been implemented as described in Cormen,
- * Leiserson, and Rivest's Introduction to Algorithms. The running time of
- * this algorithm is O(n log n), where n is the number of input points.
- *
- * @param vertices [[x1, y1], [x2, y2], …]
- * @returns polygon [[x1, y1], [x2, y2], …]
- */
-d3.geom.hull = function(vertices) {
- if (vertices.length < 3) return [];
-
- var len = vertices.length,
- plen = len - 1,
- points = [],
- stack = [],
- i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;
-
- // find the starting ref point: leftmost point with the minimum y coord
- for (i=1; i<len; ++i) {
- if (vertices[i][1] < vertices[h][1]) {
- h = i;
- } else if (vertices[i][1] == vertices[h][1]) {
- h = (vertices[i][0] < vertices[h][0] ? i : h);
- }
- }
-
- // calculate polar angles from ref point and sort
- for (i=0; i<len; ++i) {
- if (i === h) continue;
- y1 = vertices[i][1] - vertices[h][1];
- x1 = vertices[i][0] - vertices[h][0];
- points.push({angle: Math.atan2(y1, x1), index: i});
- }
- points.sort(function(a, b) { return a.angle - b.angle; });
-
- // toss out duplicate angles
- a = points[0].angle;
- v = points[0].index;
- u = 0;
- for (i=1; i<plen; ++i) {
- j = points[i].index;
- if (a == points[i].angle) {
- // keep angle for point most distant from the reference
- x1 = vertices[v][0] - vertices[h][0];
- y1 = vertices[v][1] - vertices[h][1];
- x2 = vertices[j][0] - vertices[h][0];
- y2 = vertices[j][1] - vertices[h][1];
- if ((x1*x1 + y1*y1) >= (x2*x2 + y2*y2)) {
- points[i].index = -1;
- } else {
- points[u].index = -1;
- a = points[i].angle;
- u = i;
- v = j;
- }
- } else {
- a = points[i].angle;
- u = i;
- v = j;
- }
- }
-
- // initialize the stack
- stack.push(h);
- for (i=0, j=0; i<2; ++j) {
- if (points[j].index !== -1) {
- stack.push(points[j].index);
- i++;
- }
- }
- sp = stack.length;
-
- // do graham's scan
- for (; j<plen; ++j) {
- if (points[j].index === -1) continue; // skip tossed out points
- while (!d3_geom_hullCCW(stack[sp-2], stack[sp-1], points[j].index, vertices)) {
- --sp;
- }
- stack[sp++] = points[j].index;
- }
-
- // construct the hull
- var poly = [];
- for (i=0; i<sp; ++i) {
- poly.push(vertices[stack[i]]);
- }
- return poly;
-}
-
-// are three points in counter-clockwise order?
-function d3_geom_hullCCW(i1, i2, i3, v) {
- var t, a, b, c, d, e, f;
- t = v[i1]; a = t[0]; b = t[1];
- t = v[i2]; c = t[0]; d = t[1];
- t = v[i3]; e = t[0]; f = t[1];
- return ((f-b)*(c-a) - (d-b)*(e-a)) > 0;
-}
-// Note: requires coordinates to be counterclockwise and convex!
-d3.geom.polygon = function(coordinates) {
-
- coordinates.area = function() {
- var i = 0,
- n = coordinates.length,
- a = coordinates[n - 1][0] * coordinates[0][1],
- b = coordinates[n - 1][1] * coordinates[0][0];
- while (++i < n) {
- a += coordinates[i - 1][0] * coordinates[i][1];
- b += coordinates[i - 1][1] * coordinates[i][0];
- }
- return (b - a) * .5;
- };
-
- coordinates.centroid = function(k) {
- var i = -1,
- n = coordinates.length - 1,
- x = 0,
- y = 0,
- a,
- b,
- c;
- if (!arguments.length) k = -1 / (6 * coordinates.area());
- while (++i < n) {
- a = coordinates[i];
- b = coordinates[i + 1];
- c = a[0] * b[1] - b[0] * a[1];
- x += (a[0] + b[0]) * c;
- y += (a[1] + b[1]) * c;
- }
- return [x * k, y * k];
- };
-
- // The Sutherland-Hodgman clipping algorithm.
- coordinates.clip = function(subject) {
- var input,
- i = -1,
- n = coordinates.length,
- j,
- m,
- a = coordinates[n - 1],
- b,
- c,
- d;
- while (++i < n) {
- input = subject.slice();
- subject.length = 0;
- b = coordinates[i];
- c = input[(m = input.length) - 1];
- j = -1;
- while (++j < m) {
- d = input[j];
- if (d3_geom_polygonInside(d, a, b)) {
- if (!d3_geom_polygonInside(c, a, b)) {
- subject.push(d3_geom_polygonIntersect(c, d, a, b));
- }
- subject.push(d);
- } else if (d3_geom_polygonInside(c, a, b)) {
- subject.push(d3_geom_polygonIntersect(c, d, a, b));
- }
- c = d;
- }
- a = b;
- }
- return subject;
- };
-
- return coordinates;
-};
-
-function d3_geom_polygonInside(p, a, b) {
- return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
-}
-
-// Intersect two infinite lines cd and ab.
-function d3_geom_polygonIntersect(c, d, a, b) {
- var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0],
- y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1],
- x13 = x1 - x3,
- x21 = x2 - x1,
- x43 = x4 - x3,
- y13 = y1 - y3,
- y21 = y2 - y1,
- y43 = y4 - y3,
- ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21);
- return [x1 + ua * x21, y1 + ua * y21];
-}
-// Adapted from Nicolas Garcia Belmonte's JIT implementation:
-// http://blog.thejit.org/2010/02/12/voronoi-tessellation/
-// http://blog.thejit.org/assets/voronoijs/voronoi.js
-// See lib/jit/LICENSE for details.
-
-// Notes:
-//
-// This implementation does not clip the returned polygons, so if you want to
-// clip them to a particular shape you will need to do that either in SVG or by
-// post-processing with d3.geom.polygon's clip method.
-//
-// If any vertices are coincident or have NaN positions, the behavior of this
-// method is undefined. Most likely invalid polygons will be returned. You
-// should filter invalid points, and consolidate coincident points, before
-// computing the tessellation.
-
-/**
- * @param vertices [[x1, y1], [x2, y2], …]
- * @returns polygons [[[x1, y1], [x2, y2], …], …]
- */
-d3.geom.voronoi = function(vertices) {
- var polygons = vertices.map(function() { return []; });
-
- d3_voronoi_tessellate(vertices, function(e) {
- var s1,
- s2,
- x1,
- x2,
- y1,
- y2;
- if (e.a === 1 && e.b >= 0) {
- s1 = e.ep.r;
- s2 = e.ep.l;
- } else {
- s1 = e.ep.l;
- s2 = e.ep.r;
- }
- if (e.a === 1) {
- y1 = s1 ? s1.y : -1e6;
- x1 = e.c - e.b * y1;
- y2 = s2 ? s2.y : 1e6;
- x2 = e.c - e.b * y2;
- } else {
- x1 = s1 ? s1.x : -1e6;
- y1 = e.c - e.a * x1;
- x2 = s2 ? s2.x : 1e6;
- y2 = e.c - e.a * x2;
- }
- var v1 = [x1, y1],
- v2 = [x2, y2];
- polygons[e.region.l.index].push(v1, v2);
- polygons[e.region.r.index].push(v1, v2);
- });
-
- // Reconnect the polygon segments into counterclockwise loops.
- return polygons.map(function(polygon, i) {
- var cx = vertices[i][0],
- cy = vertices[i][1];
- polygon.forEach(function(v) {
- v.angle = Math.atan2(v[0] - cx, v[1] - cy);
- });
- return polygon.sort(function(a, b) {
- return a.angle - b.angle;
- }).filter(function(d, i) {
- return !i || (d.angle - polygon[i - 1].angle > 1e-10);
- });
- });
-};
-
-var d3_voronoi_opposite = {"l": "r", "r": "l"};
-
-function d3_voronoi_tessellate(vertices, callback) {
-
- var Sites = {
- list: vertices
- .map(function(v, i) {
- return {
- index: i,
- x: v[0],
- y: v[1]
- };
- })
- .sort(function(a, b) {
- return a.y < b.y ? -1
- : a.y > b.y ? 1
- : a.x < b.x ? -1
- : a.x > b.x ? 1
- : 0;
- }),
- bottomSite: null
- };
-
- var EdgeList = {
- list: [],
- leftEnd: null,
- rightEnd: null,
-
- init: function() {
- EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");
- EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");
- EdgeList.leftEnd.r = EdgeList.rightEnd;
- EdgeList.rightEnd.l = EdgeList.leftEnd;
- EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);
- },
-
- createHalfEdge: function(edge, side) {
- return {
- edge: edge,
- side: side,
- vertex: null,
- "l": null,
- "r": null
- };
- },
-
- insert: function(lb, he) {
- he.l = lb;
- he.r = lb.r;
- lb.r.l = he;
- lb.r = he;
- },
-
- leftBound: function(p) {
- var he = EdgeList.leftEnd;
- do {
- he = he.r;
- } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));
- he = he.l;
- return he;
- },
-
- del: function(he) {
- he.l.r = he.r;
- he.r.l = he.l;
- he.edge = null;
- },
-
- right: function(he) {
- return he.r;
- },
-
- left: function(he) {
- return he.l;
- },
-
- leftRegion: function(he) {
- return he.edge == null
- ? Sites.bottomSite
- : he.edge.region[he.side];
- },
-
- rightRegion: function(he) {
- return he.edge == null
- ? Sites.bottomSite
- : he.edge.region[d3_voronoi_opposite[he.side]];
- }
- };
-
- var Geom = {
-
- bisect: function(s1, s2) {
- var newEdge = {
- region: {"l": s1, "r": s2},
- ep: {"l": null, "r": null}
- };
-
- var dx = s2.x - s1.x,
- dy = s2.y - s1.y,
- adx = dx > 0 ? dx : -dx,
- ady = dy > 0 ? dy : -dy;
-
- newEdge.c = s1.x * dx + s1.y * dy
- + (dx * dx + dy * dy) * .5;
-
- if (adx > ady) {
- newEdge.a = 1;
- newEdge.b = dy / dx;
- newEdge.c /= dx;
- } else {
- newEdge.b = 1;
- newEdge.a = dx / dy;
- newEdge.c /= dy;
- }
-
- return newEdge;
- },
-
- intersect: function(el1, el2) {
- var e1 = el1.edge,
- e2 = el2.edge;
- if (!e1 || !e2 || (e1.region.r == e2.region.r)) {
- return null;
- }
- var d = (e1.a * e2.b) - (e1.b * e2.a);
- if (Math.abs(d) < 1e-10) {
- return null;
- }
- var xint = (e1.c * e2.b - e2.c * e1.b) / d,
- yint = (e2.c * e1.a - e1.c * e2.a) / d,
- e1r = e1.region.r,
- e2r = e2.region.r,
- el,
- e;
- if ((e1r.y < e2r.y) ||
- (e1r.y == e2r.y && e1r.x < e2r.x)) {
- el = el1;
- e = e1;
- } else {
- el = el2;
- e = e2;
- }
- var rightOfSite = (xint >= e.region.r.x);
- if ((rightOfSite && (el.side === "l")) ||
- (!rightOfSite && (el.side === "r"))) {
- return null;
- }
- return {
- x: xint,
- y: yint
- };
- },
-
- rightOf: function(he, p) {
- var e = he.edge,
- topsite = e.region.r,
- rightOfSite = (p.x > topsite.x);
-
- if (rightOfSite && (he.side === "l")) {
- return 1;
- }
- if (!rightOfSite && (he.side === "r")) {
- return 0;
- }
- if (e.a === 1) {
- var dyp = p.y - topsite.y,
- dxp = p.x - topsite.x,
- fast = 0,
- above = 0;
-
- if ((!rightOfSite && (e.b < 0)) ||
- (rightOfSite && (e.b >= 0))) {
- above = fast = (dyp >= e.b * dxp);
- } else {
- above = ((p.x + p.y * e.b) > e.c);
- if (e.b < 0) {
- above = !above;
- }
- if (!above) {
- fast = 1;
- }
- }
- if (!fast) {
- var dxs = topsite.x - e.region.l.x;
- above = (e.b * (dxp * dxp - dyp * dyp)) <
- (dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b));
-
- if (e.b < 0) {
- above = !above;
- }
- }
- } else /* e.b == 1 */ {
- var yl = e.c - e.a * p.x,
- t1 = p.y - yl,
- t2 = p.x - topsite.x,
- t3 = yl - topsite.y;
-
- above = (t1 * t1) > (t2 * t2 + t3 * t3);
- }
- return he.side === "l" ? above : !above;
- },
-
- endPoint: function(edge, side, site) {
- edge.ep[side] = site;
- if (!edge.ep[d3_voronoi_opposite[side]]) return;
- callback(edge);
- },
-
- distance: function(s, t) {
- var dx = s.x - t.x,
- dy = s.y - t.y;
- return Math.sqrt(dx * dx + dy * dy);
- }
- };
-
- var EventQueue = {
- list: [],
-
- insert: function(he, site, offset) {
- he.vertex = site;
- he.ystar = site.y + offset;
- for (var i=0, list=EventQueue.list, l=list.length; i<l; i++) {
- var next = list[i];
- if (he.ystar > next.ystar ||
- (he.ystar == next.ystar &&
- site.x > next.vertex.x)) {
- continue;
- } else {
- break;
- }
- }
- list.splice(i, 0, he);
- },
-
- del: function(he) {
- for (var i=0, ls=EventQueue.list, l=ls.length; i<l && (ls[i] != he); ++i) {}
- ls.splice(i, 1);
- },
-
- empty: function() { return EventQueue.list.length === 0; },
-
- nextEvent: function(he) {
- for (var i=0, ls=EventQueue.list, l=ls.length; i<l; ++i) {
- if (ls[i] == he) return ls[i+1];
- }
- return null;
- },
-
- min: function() {
- var elem = EventQueue.list[0];
- return {
- x: elem.vertex.x,
- y: elem.ystar
- };
- },
-
- extractMin: function() {
- return EventQueue.list.shift();
- }
- };
-
- EdgeList.init();
- Sites.bottomSite = Sites.list.shift();
-
- var newSite = Sites.list.shift(), newIntStar;
- var lbnd, rbnd, llbnd, rrbnd, bisector;
- var bot, top, temp, p, v;
- var e, pm;
-
- while (true) {
- if (!EventQueue.empty()) {
- newIntStar = EventQueue.min();
- }
- if (newSite && (EventQueue.empty()
- || newSite.y < newIntStar.y
- || (newSite.y == newIntStar.y
- && newSite.x < newIntStar.x))) { //new site is smallest
- lbnd = EdgeList.leftBound(newSite);
- rbnd = EdgeList.right(lbnd);
- bot = EdgeList.rightRegion(lbnd);
- e = Geom.bisect(bot, newSite);
- bisector = EdgeList.createHalfEdge(e, "l");
- EdgeList.insert(lbnd, bisector);
- p = Geom.intersect(lbnd, bisector);
- if (p) {
- EventQueue.del(lbnd);
- EventQueue.insert(lbnd, p, Geom.distance(p, newSite));
- }
- lbnd = bisector;
- bisector = EdgeList.createHalfEdge(e, "r");
- EdgeList.insert(lbnd, bisector);
- p = Geom.intersect(bisector, rbnd);
- if (p) {
- EventQueue.insert(bisector, p, Geom.distance(p, newSite));
- }
- newSite = Sites.list.shift();
- } else if (!EventQueue.empty()) { //intersection is smallest
- lbnd = EventQueue.extractMin();
- llbnd = EdgeList.left(lbnd);
- rbnd = EdgeList.right(lbnd);
- rrbnd = EdgeList.right(rbnd);
- bot = EdgeList.leftRegion(lbnd);
- top = EdgeList.rightRegion(rbnd);
- v = lbnd.vertex;
- Geom.endPoint(lbnd.edge, lbnd.side, v);
- Geom.endPoint(rbnd.edge, rbnd.side, v);
- EdgeList.del(lbnd);
- EventQueue.del(rbnd);
- EdgeList.del(rbnd);
- pm = "l";
- if (bot.y > top.y) {
- temp = bot;
- bot = top;
- top = temp;
- pm = "r";
- }
- e = Geom.bisect(bot, top);
- bisector = EdgeList.createHalfEdge(e, pm);
- EdgeList.insert(llbnd, bisector);
- Geom.endPoint(e, d3_voronoi_opposite[pm], v);
- p = Geom.intersect(llbnd, bisector);
- if (p) {
- EventQueue.del(llbnd);
- EventQueue.insert(llbnd, p, Geom.distance(p, bot));
- }
- p = Geom.intersect(bisector, rrbnd);
- if (p) {
- EventQueue.insert(bisector, p, Geom.distance(p, bot));
- }
- } else {
- break;
- }
- }//end while
-
- for (lbnd = EdgeList.right(EdgeList.leftEnd);
- lbnd != EdgeList.rightEnd;
- lbnd = EdgeList.right(lbnd)) {
- callback(lbnd.edge);
- }
-}
-/**
-* @param vertices [[x1, y1], [x2, y2], …]
-* @returns triangles [[[x1, y1], [x2, y2], [x3, y3]], …]
- */
-d3.geom.delaunay = function(vertices) {
- var edges = vertices.map(function() { return []; }),
- triangles = [];
-
- // Use the Voronoi tessellation to determine Delaunay edges.
- d3_voronoi_tessellate(vertices, function(e) {
- edges[e.region.l.index].push(vertices[e.region.r.index]);
- });
-
- // Reconnect the edges into counterclockwise triangles.
- edges.forEach(function(edge, i) {
- var v = vertices[i],
- cx = v[0],
- cy = v[1];
- edge.forEach(function(v) {
- v.angle = Math.atan2(v[0] - cx, v[1] - cy);
- });
- edge.sort(function(a, b) {
- return a.angle - b.angle;
- });
- for (var j = 0, m = edge.length - 1; j < m; j++) {
- triangles.push([v, edge[j], edge[j + 1]]);
- }
- });
-
- return triangles;
-};
-// Constructs a new quadtree for the specified array of points. A quadtree is a
-// two-dimensional recursive spatial subdivision. This implementation uses
-// square partitions, dividing each square into four equally-sized squares. Each
-// point exists in a unique node; if multiple points are in the same position,
-// some points may be stored on internal nodes rather than leaf nodes. Quadtrees
-// can be used to accelerate various spatial operations, such as the Barnes-Hut
-// approximation for computing n-body forces, or collision detection.
-d3.geom.quadtree = function(points, x1, y1, x2, y2) {
- var p,
- i = -1,
- n = points.length;
-
- // Type conversion for deprecated API.
- if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint);
-
- // Allow bounds to be specified explicitly.
- if (arguments.length < 5) {
- if (arguments.length === 3) {
- y2 = x2 = y1;
- y1 = x1;
- } else {
- x1 = y1 = Infinity;
- x2 = y2 = -Infinity;
-
- // Compute bounds.
- while (++i < n) {
- p = points[i];
- if (p.x < x1) x1 = p.x;
- if (p.y < y1) y1 = p.y;
- if (p.x > x2) x2 = p.x;
- if (p.y > y2) y2 = p.y;
- }
-
- // Squarify the bounds.
- var dx = x2 - x1,
- dy = y2 - y1;
- if (dx > dy) y2 = y1 + dx;
- else x2 = x1 + dy;
- }
- }
-
- // Recursively inserts the specified point p at the node n or one of its
- // descendants. The bounds are defined by [x1, x2] and [y1, y2].
- function insert(n, p, x1, y1, x2, y2) {
- if (isNaN(p.x) || isNaN(p.y)) return; // ignore invalid points
- if (n.leaf) {
- var v = n.point;
- if (v) {
- // If the point at this leaf node is at the same position as the new
- // point we are adding, we leave the point associated with the
- // internal node while adding the new point to a child node. This
- // avoids infinite recursion.
- if ((Math.abs(v.x - p.x) + Math.abs(v.y - p.y)) < .01) {
- insertChild(n, p, x1, y1, x2, y2);
- } else {
- n.point = null;
- insertChild(n, v, x1, y1, x2, y2);
- insertChild(n, p, x1, y1, x2, y2);
- }
- } else {
- n.point = p;
- }
- } else {
- insertChild(n, p, x1, y1, x2, y2);
- }
- }
-
- // Recursively inserts the specified point p into a descendant of node n. The
- // bounds are defined by [x1, x2] and [y1, y2].
- function insertChild(n, p, x1, y1, x2, y2) {
- // Compute the split point, and the quadrant in which to insert p.
- var sx = (x1 + x2) * .5,
- sy = (y1 + y2) * .5,
- right = p.x >= sx,
- bottom = p.y >= sy,
- i = (bottom << 1) + right;
-
- // Recursively insert into the child node.
- n.leaf = false;
- n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
-
- // Update the bounds as we recurse.
- if (right) x1 = sx; else x2 = sx;
- if (bottom) y1 = sy; else y2 = sy;
- insert(n, p, x1, y1, x2, y2);
- }
-
- // Create the root node.
- var root = d3_geom_quadtreeNode();
-
- root.add = function(p) {
- insert(root, p, x1, y1, x2, y2);
- };
-
- root.visit = function(f) {
- d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2);
- };
-
- // Insert all points.
- points.forEach(root.add);
- return root;
-};
-
-function d3_geom_quadtreeNode() {
- return {
- leaf: true,
- nodes: [],
- point: null
- };
-}
-
-function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
- if (!f(node, x1, y1, x2, y2)) {
- var sx = (x1 + x2) * .5,
- sy = (y1 + y2) * .5,
- children = node.nodes;
- if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
- if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
- if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
- if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
- }
-}
-
-function d3_geom_quadtreePoint(p) {
- return {
- x: p[0],
- y: p[1]
- };
-}
-})();
diff --git a/visualize/static/d3.geom.min.js b/visualize/static/d3.geom.min.js
deleted file mode 100644
index 2dc6395d..00000000
--- a/visualize/static/d3.geom.min.js
+++ /dev/null
@@ -1 +0,0 @@
-(function(){function c(a){var b=0,c=0;for(;;){if(a(b,c))return[b,c];b===0?(b=c+1,c=0):(b-=1,c+=1)}}function d(a,b,c,d){var e,f,g,h,i,j,k;return e=d[a],f=e[0],g=e[1],e=d[b],h=e[0],i=e[1],e=d[c],j=e[0],k=e[1],(k-g)*(h-f)-(i-g)*(j-f)>0}function e(a,b,c){return(c[0]-b[0])*(a[1]-b[1])<(c[1]-b[1])*(a[0]-b[0])}function f(a,b,c,d){var e=a[0],f=b[0],g=c[0],h=d[0],i=a[1],j=b[1],k=c[1],l=d[1],m=e-g,n=f-e,o=h-g,p=i-k,q=j-i,r=l-k,s=(o*p-r*m)/(r*n-o*q);return[e+s*n,i+s*q]}function h(a,b){var c={list:a.map(function(a,b){return{index:b,x:a[0],y:a[1]}}).sort(function(a,b){return a.y<b.y?-1:a.y>b.y?1:a.x<b.x?-1:a.x>b.x?1:0}),bottomSite:null},d={list:[],leftEnd:null,rightEnd:null,init:function(){d.leftEnd=d.createHalfEdge(null,"l"),d.rightEnd=d.createHalfEdge(null,"l"),d.leftEnd.r=d.rightEnd,d.rightEnd.l=d.leftEnd,d.list.unshift(d.leftEnd,d.rightEnd)},createHalfEdge:function(a,b){return{edge:a,side:b,vertex:null,l:null,r:null}},insert:function(a,b){b.l=a,b.r=a.r,a.r.l=b,a.r=b},leftBound:function(a){var b=d.leftEnd;do b=b.r;while(b!=d.rightEnd&&e.rightOf(b,a));return b=b.l,b},del:function(a){a.l.r=a.r,a.r.l=a.l,a.edge=null},right:function(a){return a.r},left:function(a){return a.l},leftRegion:function(a){return a.edge==null?c.bottomSite:a.edge.region[a.side]},rightRegion:function(a){return a.edge==null?c.bottomSite:a.edge.region[g[a.side]]}},e={bisect:function(a,b){var c={region:{l:a,r:b},ep:{l:null,r:null}},d=b.x-a.x,e=b.y-a.y,f=d>0?d:-d,g=e>0?e:-e;return c.c=a.x*d+a.y*e+(d*d+e*e)*.5,f>g?(c.a=1,c.b=e/d,c.c/=d):(c.b=1,c.a=d/e,c.c/=e),c},intersect:function(a,b){var c=a.edge,d=b.edge;if(!c||!d||c.region.r==d.region.r)return null;var e=c.a*d.b-c.b*d.a;if(Math.abs(e)<1e-10)return null;var f=(c.c*d.b-d.c*c.b)/e,g=(d.c*c.a-c.c*d.a)/e,h=c.region.r,i=d.region.r,j,k;h.y<i.y||h.y==i.y&&h.x<i.x?(j=a,k=c):(j=b,k=d);var l=f>=k.region.r.x;return l&&j.side==="l"||!l&&j.side==="r"?null:{x:f,y:g}},rightOf:function(a,b){var c=a.edge,d=c.region.r,e=b.x>d.x;if(e&&a.side==="l")return 1;if(!e&&a.side==="r")return 0;if(c.a===1){var f=b.y-d.y,g=b.x-d.x,h=0,i=0;!e&&c.b<0||e&&c.b>=0?i=h=f>=c.b*g:(i=b.x+b.y*c.b>c.c,c.b<0&&(i=!i),i||(h=1));if(!h){var j=d.x-c.region.l.x;i=c.b*(g*g-f*f)<j*f*(1+2*g/j+c.b*c.b),c.b<0&&(i=!i)}}else{var k=c.c-c.a*b.x,l=b.y-k,m=b.x-d.x,n=k-d.y;i=l*l>m*m+n*n}return a.side==="l"?i:!i},endPoint:function(a,c,d){a.ep[c]=d;if(!a.ep[g[c]])return;b(a)},distance:function(a,b){var c=a.x-b.x,d=a.y-b.y;return Math.sqrt(c*c+d*d)}},f={list:[],insert:function(a,b,c){a.vertex=b,a.ystar=b.y+c;for(var d=0,e=f.list,g=e.length;d<g;d++){var h=e[d];if(a.ystar>h.ystar||a.ystar==h.ystar&&b.x>h.vertex.x)continue;break}e.splice(d,0,a)},del:function(a){for(var b=0,c=f.list,d=c.length;b<d&&c[b]!=a;++b);c.splice(b,1)},empty:function(){return f.list.length===0},nextEvent:function(a){for(var b=0,c=f.list,d=c.length;b<d;++b)if(c[b]==a)return c[b+1];return null},min:function(){var a=f.list[0];return{x:a.vertex.x,y:a.ystar}},extractMin:function(){return f.list.shift()}};d.init(),c.bottomSite=c.list.shift();var h=c.list.shift(),i,j,k,l,m,n,o,p,q,r,s,t,u;for(;;){f.empty()||(i=f.min());if(h&&(f.empty()||h.y<i.y||h.y==i.y&&h.x<i.x))j=d.leftBound(h),k=d.right(j),o=d.rightRegion(j),t=e.bisect(o,h),n=d.createHalfEdge(t,"l"),d.insert(j,n),r=e.intersect(j,n),r&&(f.del(j),f.insert(j,r,e.distance(r,h))),j=n,n=d.createHalfEdge(t,"r"),d.insert(j,n),r=e.intersect(n,k),r&&f.insert(n,r,e.distance(r,h)),h=c.list.shift();else if(!f.empty())j=f.extractMin(),l=d.left(j),k=d.right(j),m=d.right(k),o=d.leftRegion(j),p=d.rightRegion(k),s=j.vertex,e.endPoint(j.edge,j.side,s),e.endPoint(k.edge,k.side,s),d.del(j),f.del(k),d.del(k),u="l",o.y>p.y&&(q=o,o=p,p=q,u="r"),t=e.bisect(o,p),n=d.createHalfEdge(t,u),d.insert(l,n),e.endPoint(t,g[u],s),r=e.intersect(l,n),r&&(f.del(l),f.insert(l,r,e.distance(r,o))),r=e.intersect(n,m),r&&f.insert(n,r,e.distance(r,o));else break}for(j=d.right(d.leftEnd);j!=d.rightEnd;j=d.right(j))b(j.edge)}function i(){return{leaf:!0,nodes:[],point:null}}function j(a,b,c,d,e,f){if(!a(b,c,d,e,f)){var g=(c+e)*.5,h=(d+f)*.5,i=b.nodes;i[0]&&j(a,i[0],c,d,g,h),i[1]&&j(a,i[1],g,d,e,h),i[2]&&j(a,i[2],c,h,g,f),i[3]&&j(a,i[3],g,h,e,f)}}function k(a){return{x:a[0],y:a[1]}}d3.geom={},d3.geom.contour=function(d,e){var f=e||c(d),g=[],h=f[0],i=f[1],j=0,k=0,l=NaN,m=NaN,n=0;do n=0,d(h-1,i-1)&&(n+=1),d(h,i-1)&&(n+=2),d(h-1,i)&&(n+=4),d(h,i)&&(n+=8),n===6?(j=m===-1?-1:1,k=0):n===9?(j=0,k=l===1?-1:1):(j=a[n],k=b[n]),j!=l&&k!=m&&(g.push([h,i]),l=j,m=k),h+=j,i+=k;while(f[0]!=h||f[1]!=i);return g};var a=[1,0,1,1,-1,0,-1,1,0,0,0,0,-1,0,-1,NaN],b=[0,-1,0,0,0,-1,0,0,1,-1,1,1,0,-1,0,NaN];d3.geom.hull=function(a){if(a.length<3)return[];var b=a.length,c=b-1,e=[],f=[],g,h,i=0,j,k,l,m,n,o,p,q;for(g=1;g<b;++g)a[g][1]<a[i][1]?i=g:a[g][1]==a[i][1]&&(i=a[g][0]<a[i][0]?g:i);for(g=0;g<b;++g){if(g===i)continue;k=a[g][1]-a[i][1],j=a[g][0]-a[i][0],e.push({angle:Math.atan2(k,j),index:g})}e.sort(function(a,b){return a.angle-b.angle}),p=e[0].angle,o=e[0].index,n=0;for(g=1;g<c;++g)h=e[g].index,p==e[g].angle?(j=a[o][0]-a[i][0],k=a[o][1]-a[i][1],l=a[h][0]-a[i][0],m=a[h][1]-a[i][1],j*j+k*k>=l*l+m*m?e[g].index=-1:(e[n].index=-1,p=e[g].angle,n=g,o=h)):(p=e[g].angle,n=g,o=h);f.push(i);for(g=0,h=0;g<2;++h)e[h].index!==-1&&(f.push(e[h].index),g++);q=f.length;for(;h<c;++h){if(e[h].index===-1)continue;while(!d(f[q-2],f[q-1],e[h].index,a))--q;f[q++]=e[h].index}var r=[];for(g=0;g<q;++g)r.push(a[f[g]]);return r},d3.geom.polygon=function(a){return a.area=function(){var b=0,c=a.length,d=a[c-1][0]*a[0][1],e=a[c-1][1]*a[0][0];while(++b<c)d+=a[b-1][0]*a[b][1],e+=a[b-1][1]*a[b][0];return(e-d)*.5},a.centroid=function(b){var c=-1,d=a.length-1,e=0,f=0,g,h,i;arguments.length||(b=-1/(6*a.area()));while(++c<d)g=a[c],h=a[c+1],i=g[0]*h[1]-h[0]*g[1],e+=(g[0]+h[0])*i,f+=(g[1]+h[1])*i;return[e*b,f*b]},a.clip=function(b){var c,d=-1,g=a.length,h,i,j=a[g-1],k,l,m;while(++d<g){c=b.slice(),b.length=0,k=a[d],l=c[(i=c.length)-1],h=-1;while(++h<i)m=c[h],e(m,j,k)?(e(l,j,k)||b.push(f(l,m,j,k)),b.push(m)):e(l,j,k)&&b.push(f(l,m,j,k)),l=m;j=k}return b},a},d3.geom.voronoi=function(a){var b=a.map(function(){return[]});return h(a,function(a){var c,d,e,f,g,h;a.a===1&&a.b>=0?(c=a.ep.r,d=a.ep.l):(c=a.ep.l,d=a.ep.r),a.a===1?(g=c?c.y:-1e6,e=a.c-a.b*g,h=d?d.y:1e6,f=a.c-a.b*h):(e=c?c.x:-1e6,g=a.c-a.a*e,f=d?d.x:1e6,h=a.c-a.a*f);var i=[e,g],j=[f,h];b[a.region.l.index].push(i,j),b[a.region.r.index].push(i,j)}),b.map(function(b,c){var d=a[c][0],e=a[c][1];return b.forEach(function(a){a.angle=Math.atan2(a[0]-d,a[1]-e)}),b.sort(function(a,b){return a.angle-b.angle}).filter(function(a,c){return!c||a.angle-b[c-1].angle>1e-10})})};var g={l:"r",r:"l"};d3.geom.delaunay=function(a){var b=a.map(function(){return[]}),c=[];return h(a,function(c){b[c.region.l.index].push(a[c.region.r.index])}),b.forEach(function(b,d){var e=a[d],f=e[0],g=e[1];b.forEach(function(a){a.angle=Math.atan2(a[0]-f,a[1]-g)}),b.sort(function(a,b){return a.angle-b.angle});for(var h=0,i=b.length-1;h<i;h++)c.push([e,b[h],b[h+1]])}),c},d3.geom.quadtree=function(a,b,c,d,e){function n(a,b,c,d,e,f){if(isNaN(b.x)||isNaN(b.y))return;if(a.leaf){var g=a.point;g?Math.abs(g.x-b.x)+Math.abs(g.y-b.y)<.01?o(a,b,c,d,e,f):(a.point=null,o(a,g,c,d,e,f),o(a,b,c,d,e,f)):a.point=b}else o(a,b,c,d,e,f)}function o(a,b,c,d,e,f){var g=(c+e)*.5,h=(d+f)*.5,j=b.x>=g,k=b.y>=h,l=(k<<1)+j;a.leaf=!1,a=a.nodes[l]||(a.nodes[l]=i()),j?c=g:e=g,k?d=h:f=h,n(a,b,c,d,e,f)}var f,g=-1,h=a.length;h&&isNaN(a[0].x)&&(a=a.map(k));if(arguments.length<5)if(arguments.length===3)e=d=c,c=b;else{b=c=Infinity,d=e=-Infinity;while(++g<h)f=a[g],f.x<b&&(b=f.x),f.y<c&&(c=f.y),f.x>d&&(d=f.x),f.y>e&&(e=f.y);var l=d-b,m=e-c;l>m?e=c+l:d=b+m}var p=i();return p.add=function(a){n(p,a,b,c,d,e)},p.visit=function(a){j(a,p,b,c,d,e)},a.forEach(p.add),p}})(); \ No newline at end of file
diff --git a/visualize/static/d3.js b/visualize/static/d3.js
deleted file mode 100644
index 9042897e..00000000
--- a/visualize/static/d3.js
+++ /dev/null
@@ -1,4707 +0,0 @@
-(function(){if (!Date.now) Date.now = function() {
- return +new Date;
-};
-try {
- document.createElement("div").style.setProperty("opacity", 0, "");
-} catch (error) {
- var d3_style_prototype = CSSStyleDeclaration.prototype,
- d3_style_setProperty = d3_style_prototype.setProperty;
- d3_style_prototype.setProperty = function(name, value, priority) {
- d3_style_setProperty.call(this, name, value + "", priority);
- };
-}
-d3 = {version: "2.7.2"}; // semver
-var d3_array = d3_arraySlice; // conversion for NodeLists
-
-function d3_arrayCopy(pseudoarray) {
- var i = -1, n = pseudoarray.length, array = [];
- while (++i < n) array.push(pseudoarray[i]);
- return array;
-}
-
-function d3_arraySlice(pseudoarray) {
- return Array.prototype.slice.call(pseudoarray);
-}
-
-try {
- d3_array(document.documentElement.childNodes)[0].nodeType;
-} catch(e) {
- d3_array = d3_arrayCopy;
-}
-
-var d3_arraySubclass = [].__proto__?
-
-// Until ECMAScript supports array subclassing, prototype injection works well.
-function(array, prototype) {
- array.__proto__ = prototype;
-}:
-
-// And if your browser doesn't support __proto__, we'll use direct extension.
-function(array, prototype) {
- for (var property in prototype) array[property] = prototype[property];
-};
-function d3_this() {
- return this;
-}
-d3.functor = function(v) {
- return typeof v === "function" ? v : function() { return v; };
-};
-// Copies a variable number of methods from source to target.
-d3.rebind = function(target, source) {
- var i = 1, n = arguments.length, method;
- while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
- return target;
-};
-
-// Method is assumed to be a standard D3 getter-setter:
-// If passed with no arguments, gets the value.
-// If passed with arguments, sets the value and returns the target.
-function d3_rebind(target, source, method) {
- return function() {
- var value = method.apply(source, arguments);
- return arguments.length ? target : value;
- };
-}
-d3.ascending = function(a, b) {
- return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
-};
-d3.descending = function(a, b) {
- return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
-};
-d3.mean = function(array, f) {
- var n = array.length,
- a,
- m = 0,
- i = -1,
- j = 0;
- if (arguments.length === 1) {
- while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
- } else {
- while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
- }
- return j ? m : undefined;
-};
-d3.median = function(array, f) {
- if (arguments.length > 1) array = array.map(f);
- array = array.filter(d3_number);
- return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
-};
-d3.min = function(array, f) {
- var i = -1,
- n = array.length,
- a,
- b;
- if (arguments.length === 1) {
- while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
- while (++i < n) if ((b = array[i]) != null && a > b) a = b;
- } else {
- while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
- while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
- }
- return a;
-};
-d3.max = function(array, f) {
- var i = -1,
- n = array.length,
- a,
- b;
- if (arguments.length === 1) {
- while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
- while (++i < n) if ((b = array[i]) != null && b > a) a = b;
- } else {
- while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
- while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
- }
- return a;
-};
-d3.extent = function(array, f) {
- var i = -1,
- n = array.length,
- a,
- b,
- c;
- if (arguments.length === 1) {
- while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;
- while (++i < n) if ((b = array[i]) != null) {
- if (a > b) a = b;
- if (c < b) c = b;
- }
- } else {
- while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;
- while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
- if (a > b) a = b;
- if (c < b) c = b;
- }
- }
- return [a, c];
-};
-d3.random = {
- normal: function(mean, deviation) {
- if (arguments.length < 2) deviation = 1;
- if (arguments.length < 1) mean = 0;
- return function() {
- var x, y, r;
- do {
- x = Math.random() * 2 - 1;
- y = Math.random() * 2 - 1;
- r = x * x + y * y;
- } while (!r || r > 1);
- return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r);
- };
- }
-};
-function d3_number(x) {
- return x != null && !isNaN(x);
-}
-d3.sum = function(array, f) {
- var s = 0,
- n = array.length,
- a,
- i = -1;
-
- if (arguments.length === 1) {
- while (++i < n) if (!isNaN(a = +array[i])) s += a;
- } else {
- while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
- }
-
- return s;
-};
-// R-7 per <http://en.wikipedia.org/wiki/Quantile>
-d3.quantile = function(values, p) {
- var H = (values.length - 1) * p + 1,
- h = Math.floor(H),
- v = values[h - 1],
- e = H - h;
- return e ? v + e * (values[h] - v) : v;
-};
-d3.transpose = function(matrix) {
- return d3.zip.apply(d3, matrix);
-};
-d3.zip = function() {
- if (!(n = arguments.length)) return [];
- for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) {
- for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) {
- zip[j] = arguments[j][i];
- }
- }
- return zips;
-};
-
-function d3_zipLength(d) {
- return d.length;
-}
-// Locate the insertion point for x in a to maintain sorted order. The
-// arguments lo and hi may be used to specify a subset of the array which should
-// be considered; by default the entire array is used. If x is already present
-// in a, the insertion point will be before (to the left of) any existing
-// entries. The return value is suitable for use as the first argument to
-// `array.splice` assuming that a is already sorted.
-//
-// The returned insertion point i partitions the array a into two halves so that
-// all v < x for v in a[lo:i] for the left side and all v >= x for v in a[i:hi]
-// for the right side.
-d3.bisectLeft = function(a, x, lo, hi) {
- if (arguments.length < 3) lo = 0;
- if (arguments.length < 4) hi = a.length;
- while (lo < hi) {
- var mid = (lo + hi) >> 1;
- if (a[mid] < x) lo = mid + 1;
- else hi = mid;
- }
- return lo;
-};
-
-// Similar to bisectLeft, but returns an insertion point which comes after (to
-// the right of) any existing entries of x in a.
-//
-// The returned insertion point i partitions the array into two halves so that
-// all v <= x for v in a[lo:i] for the left side and all v > x for v in a[i:hi]
-// for the right side.
-d3.bisect =
-d3.bisectRight = function(a, x, lo, hi) {
- if (arguments.length < 3) lo = 0;
- if (arguments.length < 4) hi = a.length;
- while (lo < hi) {
- var mid = (lo + hi) >> 1;
- if (x < a[mid]) hi = mid;
- else lo = mid + 1;
- }
- return lo;
-};
-d3.first = function(array, f) {
- var i = 0,
- n = array.length,
- a = array[0],
- b;
- if (arguments.length === 1) f = d3.ascending;
- while (++i < n) {
- if (f.call(array, a, b = array[i]) > 0) {
- a = b;
- }
- }
- return a;
-};
-d3.last = function(array, f) {
- var i = 0,
- n = array.length,
- a = array[0],
- b;
- if (arguments.length === 1) f = d3.ascending;
- while (++i < n) {
- if (f.call(array, a, b = array[i]) <= 0) {
- a = b;
- }
- }
- return a;
-};
-d3.nest = function() {
- var nest = {},
- keys = [],
- sortKeys = [],
- sortValues,
- rollup;
-
- function map(array, depth) {
- if (depth >= keys.length) return rollup
- ? rollup.call(nest, array) : (sortValues
- ? array.sort(sortValues)
- : array);
-
- var i = -1,
- n = array.length,
- key = keys[depth++],
- keyValue,
- object,
- o = {};
-
- while (++i < n) {
- if ((keyValue = key(object = array[i])) in o) {
- o[keyValue].push(object);
- } else {
- o[keyValue] = [object];
- }
- }
-
- for (keyValue in o) {
- o[keyValue] = map(o[keyValue], depth);
- }
-
- return o;
- }
-
- function entries(map, depth) {
- if (depth >= keys.length) return map;
-
- var a = [],
- sortKey = sortKeys[depth++],
- key;
-
- for (key in map) {
- a.push({key: key, values: entries(map[key], depth)});
- }
-
- if (sortKey) a.sort(function(a, b) {
- return sortKey(a.key, b.key);
- });
-
- return a;
- }
-
- nest.map = function(array) {
- return map(array, 0);
- };
-
- nest.entries = function(array) {
- return entries(map(array, 0), 0);
- };
-
- nest.key = function(d) {
- keys.push(d);
- return nest;
- };
-
- // Specifies the order for the most-recently specified key.
- // Note: only applies to entries. Map keys are unordered!
- nest.sortKeys = function(order) {
- sortKeys[keys.length - 1] = order;
- return nest;
- };
-
- // Specifies the order for leaf values.
- // Applies to both maps and entries array.
- nest.sortValues = function(order) {
- sortValues = order;
- return nest;
- };
-
- nest.rollup = function(f) {
- rollup = f;
- return nest;
- };
-
- return nest;
-};
-d3.keys = function(map) {
- var keys = [];
- for (var key in map) keys.push(key);
- return keys;
-};
-d3.values = function(map) {
- var values = [];
- for (var key in map) values.push(map[key]);
- return values;
-};
-d3.entries = function(map) {
- var entries = [];
- for (var key in map) entries.push({key: key, value: map[key]});
- return entries;
-};
-d3.permute = function(array, indexes) {
- var permutes = [],
- i = -1,
- n = indexes.length;
- while (++i < n) permutes[i] = array[indexes[i]];
- return permutes;
-};
-d3.merge = function(arrays) {
- return Array.prototype.concat.apply([], arrays);
-};
-d3.split = function(array, f) {
- var arrays = [],
- values = [],
- value,
- i = -1,
- n = array.length;
- if (arguments.length < 2) f = d3_splitter;
- while (++i < n) {
- if (f.call(values, value = array[i], i)) {
- values = [];
- } else {
- if (!values.length) arrays.push(values);
- values.push(value);
- }
- }
- return arrays;
-};
-
-function d3_splitter(d) {
- return d == null;
-}
-function d3_collapse(s) {
- return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " ");
-}
-/**
- * @param {number} start
- * @param {number=} stop
- * @param {number=} step
- */
-d3.range = function(start, stop, step) {
- if (arguments.length < 3) {
- step = 1;
- if (arguments.length < 2) {
- stop = start;
- start = 0;
- }
- }
- if ((stop - start) / step == Infinity) throw new Error("infinite range");
- var range = [],
- i = -1,
- j;
- if (step < 0) while ((j = start + step * ++i) > stop) range.push(j);
- else while ((j = start + step * ++i) < stop) range.push(j);
- return range;
-};
-d3.requote = function(s) {
- return s.replace(d3_requote_re, "\\$&");
-};
-
-var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
-d3.round = function(x, n) {
- return n
- ? Math.round(x * Math.pow(10, n)) * Math.pow(10, -n)
- : Math.round(x);
-};
-d3.xhr = function(url, mime, callback) {
- var req = new XMLHttpRequest;
- if (arguments.length < 3) callback = mime, mime = null;
- else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
- req.open("GET", url, true);
- if (mime) req.setRequestHeader("Accept", mime);
- req.onreadystatechange = function() {
- if (req.readyState === 4) callback(req.status < 300 ? req : null);
- };
- req.send(null);
-};
-d3.text = function(url, mime, callback) {
- function ready(req) {
- callback(req && req.responseText);
- }
- if (arguments.length < 3) {
- callback = mime;
- mime = null;
- }
- d3.xhr(url, mime, ready);
-};
-d3.json = function(url, callback) {
- d3.text(url, "application/json", function(text) {
- callback(text ? JSON.parse(text) : null);
- });
-};
-d3.html = function(url, callback) {
- d3.text(url, "text/html", function(text) {
- if (text != null) { // Treat empty string as valid HTML.
- var range = document.createRange();
- range.selectNode(document.body);
- text = range.createContextualFragment(text);
- }
- callback(text);
- });
-};
-d3.xml = function(url, mime, callback) {
- function ready(req) {
- callback(req && req.responseXML);
- }
- if (arguments.length < 3) {
- callback = mime;
- mime = null;
- }
- d3.xhr(url, mime, ready);
-};
-var d3_nsPrefix = {
- svg: "http://www.w3.org/2000/svg",
- xhtml: "http://www.w3.org/1999/xhtml",
- xlink: "http://www.w3.org/1999/xlink",
- xml: "http://www.w3.org/XML/1998/namespace",
- xmlns: "http://www.w3.org/2000/xmlns/"
-};
-
-d3.ns = {
- prefix: d3_nsPrefix,
- qualify: function(name) {
- var i = name.indexOf(":");
- return i < 0 ? (name in d3_nsPrefix
- ? {space: d3_nsPrefix[name], local: name} : name)
- : {space: d3_nsPrefix[name.substring(0, i)], local: name.substring(i + 1)};
- }
-};
-d3.dispatch = function() {
- var dispatch = new d3_dispatch(),
- i = -1,
- n = arguments.length;
- while (++i < n) dispatch[arguments[i]] = d3_dispatch_event();
- return dispatch;
-};
-
-function d3_dispatch() {}
-
-d3_dispatch.prototype.on = function(type, listener) {
- var i = type.indexOf("."),
- name = "";
-
- // Extract optional namespace, e.g., "click.foo"
- if (i > 0) {
- name = type.substring(i + 1);
- type = type.substring(0, i);
- }
-
- return arguments.length < 2
- ? this[type].on(name)
- : (this[type].on(name, listener), this);
-};
-
-function d3_dispatch_event() {
- var listeners = [],
- listenerByName = {};
-
- function dispatch() {
- var z = listeners, // defensive reference
- i = -1,
- n = z.length,
- l;
- while (++i < n) if (l = z[i].on) l.apply(this, arguments);
- }
-
- dispatch.on = function(name, listener) {
- var l, i;
-
- // return the current listener, if any
- if (arguments.length < 2) return (l = listenerByName[name]) && l.on;
-
- // remove the old listener, if any (with copy-on-write)
- if (l = listenerByName[name]) {
- l.on = null;
- listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
- delete listenerByName[name];
- }
-
- // add the new listener, if any
- if (listener) {
- listeners.push(listenerByName[name] = {on: listener});
- }
-
- return dispatch;
- };
-
- return dispatch;
-};
-// TODO align
-d3.format = function(specifier) {
- var match = d3_format_re.exec(specifier),
- fill = match[1] || " ",
- sign = match[3] || "",
- zfill = match[5],
- width = +match[6],
- comma = match[7],
- precision = match[8],
- type = match[9],
- scale = 1,
- suffix = "",
- integer = false;
-
- if (precision) precision = +precision.substring(1);
-
- if (zfill) {
- fill = "0"; // TODO align = "=";
- if (comma) width -= Math.floor((width - 1) / 4);
- }
-
- switch (type) {
- case "n": comma = true; type = "g"; break;
- case "%": scale = 100; suffix = "%"; type = "f"; break;
- case "p": scale = 100; suffix = "%"; type = "r"; break;
- case "d": integer = true; precision = 0; break;
- case "s": scale = -1; type = "r"; break;
- }
-
- // If no precision is specified for r, fallback to general notation.
- if (type == "r" && !precision) type = "g";
-
- type = d3_format_types[type] || d3_format_typeDefault;
-
- return function(value) {
-
- // Return the empty string for floats formatted as ints.
- if (integer && (value % 1)) return "";
-
- // Convert negative to positive, and record the sign prefix.
- var negative = (value < 0) && (value = -value) ? "\u2212" : sign;
-
- // Apply the scale, computing it from the value's exponent for si format.
- if (scale < 0) {
- var prefix = d3.formatPrefix(value, precision);
- value *= prefix.scale;
- suffix = prefix.symbol;
- } else {
- value *= scale;
- }
-
- // Convert to the desired precision.
- value = type(value, precision);
-
- // If the fill character is 0, the sign and group is applied after the fill.
- if (zfill) {
- var length = value.length + negative.length;
- if (length < width) value = new Array(width - length + 1).join(fill) + value;
- if (comma) value = d3_format_group(value);
- value = negative + value;
- }
-
- // Otherwise (e.g., space-filling), the sign and group is applied before.
- else {
- if (comma) value = d3_format_group(value);
- value = negative + value;
- var length = value.length;
- if (length < width) value = new Array(width - length + 1).join(fill) + value;
- }
-
- return value + suffix;
- };
-};
-
-// [[fill]align][sign][#][0][width][,][.precision][type]
-var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
-
-var d3_format_types = {
- g: function(x, p) { return x.toPrecision(p); },
- e: function(x, p) { return x.toExponential(p); },
- f: function(x, p) { return x.toFixed(p); },
- r: function(x, p) { return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p))); }
-};
-
-function d3_format_precision(x, p) {
- return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1);
-}
-
-function d3_format_typeDefault(x) {
- return x + "";
-}
-
-// Apply comma grouping for thousands.
-function d3_format_group(value) {
- var i = value.lastIndexOf("."),
- f = i >= 0 ? value.substring(i) : (i = value.length, ""),
- t = [];
- while (i > 0) t.push(value.substring(i -= 3, i + 3));
- return t.reverse().join(",") + f;
-}
-var d3_formatPrefixes = ["y","z","a","f","p","n","μ","m","","k","M","G","T","P","E","Z","Y"].map(d3_formatPrefix);
-
-d3.formatPrefix = function(value, precision) {
- var i = 0;
- if (value) {
- if (value < 0) value *= -1;
- if (precision) value = d3.round(value, d3_format_precision(value, precision));
- i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
- i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3));
- }
- return d3_formatPrefixes[8 + i / 3];
-};
-
-function d3_formatPrefix(d, i) {
- return {
- scale: Math.pow(10, (8 - i) * 3),
- symbol: d
- };
-}
-
-/*
- * TERMS OF USE - EASING EQUATIONS
- *
- * Open source under the BSD License.
- *
- * Copyright 2001 Robert Penner
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * - Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * - Neither the name of the author nor the names of contributors may be used to
- * endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-var d3_ease_quad = d3_ease_poly(2),
- d3_ease_cubic = d3_ease_poly(3);
-
-var d3_ease = {
- linear: function() { return d3_ease_linear; },
- poly: d3_ease_poly,
- quad: function() { return d3_ease_quad; },
- cubic: function() { return d3_ease_cubic; },
- sin: function() { return d3_ease_sin; },
- exp: function() { return d3_ease_exp; },
- circle: function() { return d3_ease_circle; },
- elastic: d3_ease_elastic,
- back: d3_ease_back,
- bounce: function() { return d3_ease_bounce; }
-};
-
-var d3_ease_mode = {
- "in": function(f) { return f; },
- "out": d3_ease_reverse,
- "in-out": d3_ease_reflect,
- "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); }
-};
-
-d3.ease = function(name) {
- var i = name.indexOf("-"),
- t = i >= 0 ? name.substring(0, i) : name,
- m = i >= 0 ? name.substring(i + 1) : "in";
- return d3_ease_clamp(d3_ease_mode[m](d3_ease[t].apply(null, Array.prototype.slice.call(arguments, 1))));
-};
-
-function d3_ease_clamp(f) {
- return function(t) {
- return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
- };
-}
-
-function d3_ease_reverse(f) {
- return function(t) {
- return 1 - f(1 - t);
- };
-}
-
-function d3_ease_reflect(f) {
- return function(t) {
- return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t)));
- };
-}
-
-function d3_ease_linear(t) {
- return t;
-}
-
-function d3_ease_poly(e) {
- return function(t) {
- return Math.pow(t, e);
- }
-}
-
-function d3_ease_sin(t) {
- return 1 - Math.cos(t * Math.PI / 2);
-}
-
-function d3_ease_exp(t) {
- return Math.pow(2, 10 * (t - 1));
-}
-
-function d3_ease_circle(t) {
- return 1 - Math.sqrt(1 - t * t);
-}
-
-function d3_ease_elastic(a, p) {
- var s;
- if (arguments.length < 2) p = 0.45;
- if (arguments.length < 1) { a = 1; s = p / 4; }
- else s = p / (2 * Math.PI) * Math.asin(1 / a);
- return function(t) {
- return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p);
- };
-}
-
-function d3_ease_back(s) {
- if (!s) s = 1.70158;
- return function(t) {
- return t * t * ((s + 1) * t - s);
- };
-}
-
-function d3_ease_bounce(t) {
- return t < 1 / 2.75 ? 7.5625 * t * t
- : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75
- : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375
- : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
-}
-d3.event = null;
-
-function d3_eventCancel() {
- d3.event.stopPropagation();
- d3.event.preventDefault();
-}
-d3.interpolate = function(a, b) {
- var i = d3.interpolators.length, f;
- while (--i >= 0 && !(f = d3.interpolators[i](a, b)));
- return f;
-};
-
-d3.interpolateNumber = function(a, b) {
- b -= a;
- return function(t) { return a + b * t; };
-};
-
-d3.interpolateRound = function(a, b) {
- b -= a;
- return function(t) { return Math.round(a + b * t); };
-};
-
-d3.interpolateString = function(a, b) {
- var m, // current match
- i, // current index
- j, // current index (for coallescing)
- s0 = 0, // start index of current string prefix
- s1 = 0, // end index of current string prefix
- s = [], // string constants and placeholders
- q = [], // number interpolators
- n, // q.length
- o;
-
- // Reset our regular expression!
- d3_interpolate_number.lastIndex = 0;
-
- // Find all numbers in b.
- for (i = 0; m = d3_interpolate_number.exec(b); ++i) {
- if (m.index) s.push(b.substring(s0, s1 = m.index));
- q.push({i: s.length, x: m[0]});
- s.push(null);
- s0 = d3_interpolate_number.lastIndex;
- }
- if (s0 < b.length) s.push(b.substring(s0));
-
- // Find all numbers in a.
- for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {
- o = q[i];
- if (o.x == m[0]) { // The numbers match, so coallesce.
- if (o.i) {
- if (s[o.i + 1] == null) { // This match is followed by another number.
- s[o.i - 1] += o.x;
- s.splice(o.i, 1);
- for (j = i + 1; j < n; ++j) q[j].i--;
- } else { // This match is followed by a string, so coallesce twice.
- s[o.i - 1] += o.x + s[o.i + 1];
- s.splice(o.i, 2);
- for (j = i + 1; j < n; ++j) q[j].i -= 2;
- }
- } else {
- if (s[o.i + 1] == null) { // This match is followed by another number.
- s[o.i] = o.x;
- } else { // This match is followed by a string, so coallesce twice.
- s[o.i] = o.x + s[o.i + 1];
- s.splice(o.i + 1, 1);
- for (j = i + 1; j < n; ++j) q[j].i--;
- }
- }
- q.splice(i, 1);
- n--;
- i--;
- } else {
- o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x));
- }
- }
-
- // Remove any numbers in b not found in a.
- while (i < n) {
- o = q.pop();
- if (s[o.i + 1] == null) { // This match is followed by another number.
- s[o.i] = o.x;
- } else { // This match is followed by a string, so coallesce twice.
- s[o.i] = o.x + s[o.i + 1];
- s.splice(o.i + 1, 1);
- }
- n--;
- }
-
- // Special optimization for only a single match.
- if (s.length === 1) {
- return s[0] == null ? q[0].x : function() { return b; };
- }
-
- // Otherwise, interpolate each of the numbers and rejoin the string.
- return function(t) {
- for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);
- return s.join("");
- };
-};
-
-d3.interpolateTransform = function(a, b) {
- return d3.interpolateString(d3.transform(a) + "", d3.transform(b) + "");
-};
-
-d3.interpolateRgb = function(a, b) {
- a = d3.rgb(a);
- b = d3.rgb(b);
- var ar = a.r,
- ag = a.g,
- ab = a.b,
- br = b.r - ar,
- bg = b.g - ag,
- bb = b.b - ab;
- return function(t) {
- return "#"
- + d3_rgb_hex(Math.round(ar + br * t))
- + d3_rgb_hex(Math.round(ag + bg * t))
- + d3_rgb_hex(Math.round(ab + bb * t));
- };
-};
-
-// interpolates HSL space, but outputs RGB string (for compatibility)
-d3.interpolateHsl = function(a, b) {
- a = d3.hsl(a);
- b = d3.hsl(b);
- var h0 = a.h,
- s0 = a.s,
- l0 = a.l,
- h1 = b.h - h0,
- s1 = b.s - s0,
- l1 = b.l - l0;
- return function(t) {
- return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString();
- };
-};
-
-d3.interpolateArray = function(a, b) {
- var x = [],
- c = [],
- na = a.length,
- nb = b.length,
- n0 = Math.min(a.length, b.length),
- i;
- for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i]));
- for (; i < na; ++i) c[i] = a[i];
- for (; i < nb; ++i) c[i] = b[i];
- return function(t) {
- for (i = 0; i < n0; ++i) c[i] = x[i](t);
- return c;
- };
-};
-
-d3.interpolateObject = function(a, b) {
- var i = {},
- c = {},
- k;
- for (k in a) {
- if (k in b) {
- i[k] = d3_interpolateByName(k)(a[k], b[k]);
- } else {
- c[k] = a[k];
- }
- }
- for (k in b) {
- if (!(k in a)) {
- c[k] = b[k];
- }
- }
- return function(t) {
- for (k in i) c[k] = i[k](t);
- return c;
- };
-}
-
-var d3_interpolate_number = /[-+]?(?:\d*\.?\d+)(?:[eE][-+]?\d+)?/g;
-
-function d3_interpolateByName(n) {
- return n == "transform"
- ? d3.interpolateTransform
- : d3.interpolate;
-}
-
-d3.interpolators = [
- d3.interpolateObject,
- function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); },
- function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); },
- function(a, b) { return (typeof b === "string" ? b in d3_rgb_names || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b); },
- function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b); }
-];
-function d3_uninterpolateNumber(a, b) {
- b = b - (a = +a) ? 1 / (b - a) : 0;
- return function(x) { return (x - a) * b; };
-}
-
-function d3_uninterpolateClamp(a, b) {
- b = b - (a = +a) ? 1 / (b - a) : 0;
- return function(x) { return Math.max(0, Math.min(1, (x - a) * b)); };
-}
-d3.rgb = function(r, g, b) {
- return arguments.length === 1
- ? (r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b)
- : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb))
- : d3_rgb(~~r, ~~g, ~~b);
-};
-
-function d3_rgb(r, g, b) {
- return new d3_Rgb(r, g, b);
-}
-
-function d3_Rgb(r, g, b) {
- this.r = r;
- this.g = g;
- this.b = b;
-}
-
-d3_Rgb.prototype.brighter = function(k) {
- k = Math.pow(0.7, arguments.length ? k : 1);
- var r = this.r,
- g = this.g,
- b = this.b,
- i = 30;
- if (!r && !g && !b) return d3_rgb(i, i, i);
- if (r && r < i) r = i;
- if (g && g < i) g = i;
- if (b && b < i) b = i;
- return d3_rgb(
- Math.min(255, Math.floor(r / k)),
- Math.min(255, Math.floor(g / k)),
- Math.min(255, Math.floor(b / k)));
-};
-
-d3_Rgb.prototype.darker = function(k) {
- k = Math.pow(0.7, arguments.length ? k : 1);
- return d3_rgb(
- Math.floor(k * this.r),
- Math.floor(k * this.g),
- Math.floor(k * this.b));
-};
-
-d3_Rgb.prototype.hsl = function() {
- return d3_rgb_hsl(this.r, this.g, this.b);
-};
-
-d3_Rgb.prototype.toString = function() {
- return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
-};
-
-function d3_rgb_hex(v) {
- return v < 0x10
- ? "0" + Math.max(0, v).toString(16)
- : Math.min(255, v).toString(16);
-}
-
-function d3_rgb_parse(format, rgb, hsl) {
- var r = 0, // red channel; int in [0, 255]
- g = 0, // green channel; int in [0, 255]
- b = 0, // blue channel; int in [0, 255]
- m1, // CSS color specification match
- m2, // CSS color specification type (e.g., rgb)
- name;
-
- /* Handle hsl, rgb. */
- m1 = /([a-z]+)\((.*)\)/i.exec(format);
- if (m1) {
- m2 = m1[2].split(",");
- switch (m1[1]) {
- case "hsl": {
- return hsl(
- parseFloat(m2[0]), // degrees
- parseFloat(m2[1]) / 100, // percentage
- parseFloat(m2[2]) / 100 // percentage
- );
- }
- case "rgb": {
- return rgb(
- d3_rgb_parseNumber(m2[0]),
- d3_rgb_parseNumber(m2[1]),
- d3_rgb_parseNumber(m2[2])
- );
- }
- }
- }
-
- /* Named colors. */
- if (name = d3_rgb_names[format]) return rgb(name.r, name.g, name.b);
-
- /* Hexadecimal colors: #rgb and #rrggbb. */
- if (format != null && format.charAt(0) === "#") {
- if (format.length === 4) {
- r = format.charAt(1); r += r;
- g = format.charAt(2); g += g;
- b = format.charAt(3); b += b;
- } else if (format.length === 7) {
- r = format.substring(1, 3);
- g = format.substring(3, 5);
- b = format.substring(5, 7);
- }
- r = parseInt(r, 16);
- g = parseInt(g, 16);
- b = parseInt(b, 16);
- }
-
- return rgb(r, g, b);
-}
-
-function d3_rgb_hsl(r, g, b) {
- var min = Math.min(r /= 255, g /= 255, b /= 255),
- max = Math.max(r, g, b),
- d = max - min,
- h,
- s,
- l = (max + min) / 2;
- if (d) {
- s = l < .5 ? d / (max + min) : d / (2 - max - min);
- if (r == max) h = (g - b) / d + (g < b ? 6 : 0);
- else if (g == max) h = (b - r) / d + 2;
- else h = (r - g) / d + 4;
- h *= 60;
- } else {
- s = h = 0;
- }
- return d3_hsl(h, s, l);
-}
-
-function d3_rgb_parseNumber(c) { // either integer or percentage
- var f = parseFloat(c);
- return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
-}
-
-var d3_rgb_names = {
- aliceblue: "#f0f8ff",
- antiquewhite: "#faebd7",
- aqua: "#00ffff",
- aquamarine: "#7fffd4",
- azure: "#f0ffff",
- beige: "#f5f5dc",
- bisque: "#ffe4c4",
- black: "#000000",
- blanchedalmond: "#ffebcd",
- blue: "#0000ff",
- blueviolet: "#8a2be2",
- brown: "#a52a2a",
- burlywood: "#deb887",
- cadetblue: "#5f9ea0",
- chartreuse: "#7fff00",
- chocolate: "#d2691e",
- coral: "#ff7f50",
- cornflowerblue: "#6495ed",
- cornsilk: "#fff8dc",
- crimson: "#dc143c",
- cyan: "#00ffff",
- darkblue: "#00008b",
- darkcyan: "#008b8b",
- darkgoldenrod: "#b8860b",
- darkgray: "#a9a9a9",
- darkgreen: "#006400",
- darkgrey: "#a9a9a9",
- darkkhaki: "#bdb76b",
- darkmagenta: "#8b008b",
- darkolivegreen: "#556b2f",
- darkorange: "#ff8c00",
- darkorchid: "#9932cc",
- darkred: "#8b0000",
- darksalmon: "#e9967a",
- darkseagreen: "#8fbc8f",
- darkslateblue: "#483d8b",
- darkslategray: "#2f4f4f",
- darkslategrey: "#2f4f4f",
- darkturquoise: "#00ced1",
- darkviolet: "#9400d3",
- deeppink: "#ff1493",
- deepskyblue: "#00bfff",
- dimgray: "#696969",
- dimgrey: "#696969",
- dodgerblue: "#1e90ff",
- firebrick: "#b22222",
- floralwhite: "#fffaf0",
- forestgreen: "#228b22",
- fuchsia: "#ff00ff",
- gainsboro: "#dcdcdc",
- ghostwhite: "#f8f8ff",
- gold: "#ffd700",
- goldenrod: "#daa520",
- gray: "#808080",
- green: "#008000",
- greenyellow: "#adff2f",
- grey: "#808080",
- honeydew: "#f0fff0",
- hotpink: "#ff69b4",
- indianred: "#cd5c5c",
- indigo: "#4b0082",
- ivory: "#fffff0",
- khaki: "#f0e68c",
- lavender: "#e6e6fa",
- lavenderblush: "#fff0f5",
- lawngreen: "#7cfc00",
- lemonchiffon: "#fffacd",
- lightblue: "#add8e6",
- lightcoral: "#f08080",
- lightcyan: "#e0ffff",
- lightgoldenrodyellow: "#fafad2",
- lightgray: "#d3d3d3",
- lightgreen: "#90ee90",
- lightgrey: "#d3d3d3",
- lightpink: "#ffb6c1",
- lightsalmon: "#ffa07a",
- lightseagreen: "#20b2aa",
- lightskyblue: "#87cefa",
- lightslategray: "#778899",
- lightslategrey: "#778899",
- lightsteelblue: "#b0c4de",
- lightyellow: "#ffffe0",
- lime: "#00ff00",
- limegreen: "#32cd32",
- linen: "#faf0e6",
- magenta: "#ff00ff",
- maroon: "#800000",
- mediumaquamarine: "#66cdaa",
- mediumblue: "#0000cd",
- mediumorchid: "#ba55d3",
- mediumpurple: "#9370db",
- mediumseagreen: "#3cb371",
- mediumslateblue: "#7b68ee",
- mediumspringgreen: "#00fa9a",
- mediumturquoise: "#48d1cc",
- mediumvioletred: "#c71585",
- midnightblue: "#191970",
- mintcream: "#f5fffa",
- mistyrose: "#ffe4e1",
- moccasin: "#ffe4b5",
- navajowhite: "#ffdead",
- navy: "#000080",
- oldlace: "#fdf5e6",
- olive: "#808000",
- olivedrab: "#6b8e23",
- orange: "#ffa500",
- orangered: "#ff4500",
- orchid: "#da70d6",
- palegoldenrod: "#eee8aa",
- palegreen: "#98fb98",
- paleturquoise: "#afeeee",
- palevioletred: "#db7093",
- papayawhip: "#ffefd5",
- peachpuff: "#ffdab9",
- peru: "#cd853f",
- pink: "#ffc0cb",
- plum: "#dda0dd",
- powderblue: "#b0e0e6",
- purple: "#800080",
- red: "#ff0000",
- rosybrown: "#bc8f8f",
- royalblue: "#4169e1",
- saddlebrown: "#8b4513",
- salmon: "#fa8072",
- sandybrown: "#f4a460",
- seagreen: "#2e8b57",
- seashell: "#fff5ee",
- sienna: "#a0522d",
- silver: "#c0c0c0",
- skyblue: "#87ceeb",
- slateblue: "#6a5acd",
- slategray: "#708090",
- slategrey: "#708090",
- snow: "#fffafa",
- springgreen: "#00ff7f",
- steelblue: "#4682b4",
- tan: "#d2b48c",
- teal: "#008080",
- thistle: "#d8bfd8",
- tomato: "#ff6347",
- turquoise: "#40e0d0",
- violet: "#ee82ee",
- wheat: "#f5deb3",
- white: "#ffffff",
- whitesmoke: "#f5f5f5",
- yellow: "#ffff00",
- yellowgreen: "#9acd32"
-};
-
-for (var d3_rgb_name in d3_rgb_names) {
- d3_rgb_names[d3_rgb_name] = d3_rgb_parse(
- d3_rgb_names[d3_rgb_name],
- d3_rgb,
- d3_hsl_rgb);
-}
-d3.hsl = function(h, s, l) {
- return arguments.length === 1
- ? (h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l)
- : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl))
- : d3_hsl(+h, +s, +l);
-};
-
-function d3_hsl(h, s, l) {
- return new d3_Hsl(h, s, l);
-}
-
-function d3_Hsl(h, s, l) {
- this.h = h;
- this.s = s;
- this.l = l;
-}
-
-d3_Hsl.prototype.brighter = function(k) {
- k = Math.pow(0.7, arguments.length ? k : 1);
- return d3_hsl(this.h, this.s, this.l / k);
-};
-
-d3_Hsl.prototype.darker = function(k) {
- k = Math.pow(0.7, arguments.length ? k : 1);
- return d3_hsl(this.h, this.s, k * this.l);
-};
-
-d3_Hsl.prototype.rgb = function() {
- return d3_hsl_rgb(this.h, this.s, this.l);
-};
-
-d3_Hsl.prototype.toString = function() {
- return this.rgb().toString();
-};
-
-function d3_hsl_rgb(h, s, l) {
- var m1,
- m2;
-
- /* Some simple corrections for h, s and l. */
- h = h % 360; if (h < 0) h += 360;
- s = s < 0 ? 0 : s > 1 ? 1 : s;
- l = l < 0 ? 0 : l > 1 ? 1 : l;
-
- /* From FvD 13.37, CSS Color Module Level 3 */
- m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
- m1 = 2 * l - m2;
-
- function v(h) {
- if (h > 360) h -= 360;
- else if (h < 0) h += 360;
- if (h < 60) return m1 + (m2 - m1) * h / 60;
- if (h < 180) return m2;
- if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
- return m1;
- }
-
- function vv(h) {
- return Math.round(v(h) * 255);
- }
-
- return d3_rgb(vv(h + 120), vv(h), vv(h - 120));
-}
-function d3_selection(groups) {
- d3_arraySubclass(groups, d3_selectionPrototype);
- return groups;
-}
-
-var d3_select = function(s, n) { return n.querySelector(s); },
- d3_selectAll = function(s, n) { return n.querySelectorAll(s); },
- d3_selectRoot = document.documentElement,
- d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector,
- d3_selectMatches = function(n, s) { return d3_selectMatcher.call(n, s); };
-
-// Prefer Sizzle, if available.
-if (typeof Sizzle === "function") {
- d3_select = function(s, n) { return Sizzle(s, n)[0]; };
- d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); };
- d3_selectMatches = Sizzle.matchesSelector;
-}
-
-var d3_selectionPrototype = [];
-
-d3.selection = function() {
- return d3_selectionRoot;
-};
-
-d3.selection.prototype = d3_selectionPrototype;
-d3_selectionPrototype.select = function(selector) {
- var subgroups = [],
- subgroup,
- subnode,
- group,
- node;
-
- if (typeof selector !== "function") selector = d3_selection_selector(selector);
-
- for (var j = -1, m = this.length; ++j < m;) {
- subgroups.push(subgroup = []);
- subgroup.parentNode = (group = this[j]).parentNode;
- for (var i = -1, n = group.length; ++i < n;) {
- if (node = group[i]) {
- subgroup.push(subnode = selector.call(node, node.__data__, i));
- if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
- } else {
- subgroup.push(null);
- }
- }
- }
-
- return d3_selection(subgroups);
-};
-
-function d3_selection_selector(selector) {
- return function() {
- return d3_select(selector, this);
- };
-}
-d3_selectionPrototype.selectAll = function(selector) {
- var subgroups = [],
- subgroup,
- node;
-
- if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
-
- for (var j = -1, m = this.length; ++j < m;) {
- for (var group = this[j], i = -1, n = group.length; ++i < n;) {
- if (node = group[i]) {
- subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i)));
- subgroup.parentNode = node;
- }
- }
- }
-
- return d3_selection(subgroups);
-};
-
-function d3_selection_selectorAll(selector) {
- return function() {
- return d3_selectAll(selector, this);
- };
-}
-d3_selectionPrototype.attr = function(name, value) {
- name = d3.ns.qualify(name);
-
- // If no value is specified, return the first value.
- if (arguments.length < 2) {
- var node = this.node();
- return name.local
- ? node.getAttributeNS(name.space, name.local)
- : node.getAttribute(name);
- }
-
- function attrNull() {
- this.removeAttribute(name);
- }
-
- function attrNullNS() {
- this.removeAttributeNS(name.space, name.local);
- }
-
- function attrConstant() {
- this.setAttribute(name, value);
- }
-
- function attrConstantNS() {
- this.setAttributeNS(name.space, name.local, value);
- }
-
- function attrFunction() {
- var x = value.apply(this, arguments);
- if (x == null) this.removeAttribute(name);
- else this.setAttribute(name, x);
- }
-
- function attrFunctionNS() {
- var x = value.apply(this, arguments);
- if (x == null) this.removeAttributeNS(name.space, name.local);
- else this.setAttributeNS(name.space, name.local, x);
- }
-
- return this.each(value == null
- ? (name.local ? attrNullNS : attrNull) : (typeof value === "function"
- ? (name.local ? attrFunctionNS : attrFunction)
- : (name.local ? attrConstantNS : attrConstant)));
-};
-d3_selectionPrototype.classed = function(name, value) {
- var names = name.split(d3_selection_classedWhitespace),
- n = names.length,
- i = -1;
- if (arguments.length > 1) {
- while (++i < n) d3_selection_classed.call(this, names[i], value);
- return this;
- } else {
- while (++i < n) if (!d3_selection_classed.call(this, names[i])) return false;
- return true;
- }
-};
-
-var d3_selection_classedWhitespace = /\s+/g;
-
-function d3_selection_classed(name, value) {
- var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g");
-
- // If no value is specified, return the first value.
- if (arguments.length < 2) {
- var node = this.node();
- if (c = node.classList) return c.contains(name);
- var c = node.className;
- re.lastIndex = 0;
- return re.test(c.baseVal != null ? c.baseVal : c);
- }
-
- function classedAdd() {
- if (c = this.classList) return c.add(name);
- var c = this.className,
- cb = c.baseVal != null,
- cv = cb ? c.baseVal : c;
- re.lastIndex = 0;
- if (!re.test(cv)) {
- cv = d3_collapse(cv + " " + name);
- if (cb) c.baseVal = cv;
- else this.className = cv;
- }
- }
-
- function classedRemove() {
- if (c = this.classList) return c.remove(name);
- var c = this.className,
- cb = c.baseVal != null,
- cv = cb ? c.baseVal : c;
- cv = d3_collapse(cv.replace(re, " "));
- if (cb) c.baseVal = cv;
- else this.className = cv;
- }
-
- function classedFunction() {
- (value.apply(this, arguments)
- ? classedAdd
- : classedRemove).call(this);
- }
-
- return this.each(typeof value === "function"
- ? classedFunction : value
- ? classedAdd
- : classedRemove);
-}
-d3_selectionPrototype.style = function(name, value, priority) {
- if (arguments.length < 3) priority = "";
-
- // If no value is specified, return the first value.
- if (arguments.length < 2) return window
- .getComputedStyle(this.node(), null)
- .getPropertyValue(name);
-
- function styleNull() {
- this.style.removeProperty(name);
- }
-
- function styleConstant() {
- this.style.setProperty(name, value, priority);
- }
-
- function styleFunction() {
- var x = value.apply(this, arguments);
- if (x == null) this.style.removeProperty(name);
- else this.style.setProperty(name, x, priority);
- }
-
- return this.each(value == null
- ? styleNull : (typeof value === "function"
- ? styleFunction : styleConstant));
-};
-d3_selectionPrototype.property = function(name, value) {
-
- // If no value is specified, return the first value.
- if (arguments.length < 2) return this.node()[name];
-
- function propertyNull() {
- delete this[name];
- }
-
- function propertyConstant() {
- this[name] = value;
- }
-
- function propertyFunction() {
- var x = value.apply(this, arguments);
- if (x == null) delete this[name];
- else this[name] = x;
- }
-
- return this.each(value == null
- ? propertyNull : (typeof value === "function"
- ? propertyFunction : propertyConstant));
-};
-d3_selectionPrototype.text = function(value) {
- return arguments.length < 1
- ? this.node().textContent : this.each(typeof value === "function"
- ? function() { var v = value.apply(this, arguments); this.textContent = v == null ? "" : v; } : value == null
- ? function() { this.textContent = ""; }
- : function() { this.textContent = value; });
-};
-d3_selectionPrototype.html = function(value) {
- return arguments.length < 1
- ? this.node().innerHTML : this.each(typeof value === "function"
- ? function() { var v = value.apply(this, arguments); this.innerHTML = v == null ? "" : v; } : value == null
- ? function() { this.innerHTML = ""; }
- : function() { this.innerHTML = value; });
-};
-// TODO append(node)?
-// TODO append(function)?
-d3_selectionPrototype.append = function(name) {
- name = d3.ns.qualify(name);
-
- function append() {
- return this.appendChild(document.createElementNS(this.namespaceURI, name));
- }
-
- function appendNS() {
- return this.appendChild(document.createElementNS(name.space, name.local));
- }
-
- return this.select(name.local ? appendNS : append);
-};
-// TODO insert(node, function)?
-// TODO insert(function, string)?
-// TODO insert(function, function)?
-d3_selectionPrototype.insert = function(name, before) {
- name = d3.ns.qualify(name);
-
- function insert() {
- return this.insertBefore(
- document.createElementNS(this.namespaceURI, name),
- d3_select(before, this));
- }
-
- function insertNS() {
- return this.insertBefore(
- document.createElementNS(name.space, name.local),
- d3_select(before, this));
- }
-
- return this.select(name.local ? insertNS : insert);
-};
-// TODO remove(selector)?
-// TODO remove(node)?
-// TODO remove(function)?
-d3_selectionPrototype.remove = function() {
- return this.each(function() {
- var parent = this.parentNode;
- if (parent) parent.removeChild(this);
- });
-};
-// TODO data(null) for clearing data?
-d3_selectionPrototype.data = function(data, join) {
- var enter = [],
- update = [],
- exit = [];
-
- function bind(group, groupData) {
- var i,
- n = group.length,
- m = groupData.length,
- n0 = Math.min(n, m),
- n1 = Math.max(n, m),
- updateNodes = [],
- enterNodes = [],
- exitNodes = [],
- node,
- nodeData;
-
- if (join) {
- var nodeByKey = {},
- keys = [],
- key,
- j = groupData.length;
-
- for (i = -1; ++i < n;) {
- key = join.call(node = group[i], node.__data__, i);
- if (key in nodeByKey) {
- exitNodes[j++] = node; // duplicate key
- } else {
- nodeByKey[key] = node;
- }
- keys.push(key);
- }
-
- for (i = -1; ++i < m;) {
- node = nodeByKey[key = join.call(groupData, nodeData = groupData[i], i)];
- if (node) {
- node.__data__ = nodeData;
- updateNodes[i] = node;
- enterNodes[i] = exitNodes[i] = null;
- } else {
- enterNodes[i] = d3_selection_dataNode(nodeData);
- updateNodes[i] = exitNodes[i] = null;
- }
- delete nodeByKey[key];
- }
-
- for (i = -1; ++i < n;) {
- if (keys[i] in nodeByKey) {
- exitNodes[i] = group[i];
- }
- }
- } else {
- for (i = -1; ++i < n0;) {
- node = group[i];
- nodeData = groupData[i];
- if (node) {
- node.__data__ = nodeData;
- updateNodes[i] = node;
- enterNodes[i] = exitNodes[i] = null;
- } else {
- enterNodes[i] = d3_selection_dataNode(nodeData);
- updateNodes[i] = exitNodes[i] = null;
- }
- }
- for (; i < m; ++i) {
- enterNodes[i] = d3_selection_dataNode(groupData[i]);
- updateNodes[i] = exitNodes[i] = null;
- }
- for (; i < n1; ++i) {
- exitNodes[i] = group[i];
- enterNodes[i] = updateNodes[i] = null;
- }
- }
-
- enterNodes.update
- = updateNodes;
-
- enterNodes.parentNode
- = updateNodes.parentNode
- = exitNodes.parentNode
- = group.parentNode;
-
- enter.push(enterNodes);
- update.push(updateNodes);
- exit.push(exitNodes);
- }
-
- var i = -1,
- n = this.length,
- group;
- if (typeof data === "function") {
- while (++i < n) {
- bind(group = this[i], data.call(group, group.parentNode.__data__, i));
- }
- } else {
- while (++i < n) {
- bind(group = this[i], data);
- }
- }
-
- var selection = d3_selection(update);
- selection.enter = function() { return d3_selection_enter(enter); };
- selection.exit = function() { return d3_selection(exit); };
- return selection;
-};
-
-function d3_selection_dataNode(data) {
- return {__data__: data};
-}
-d3_selectionPrototype.filter = function(filter) {
- var subgroups = [],
- subgroup,
- group,
- node;
-
- if (typeof filter !== "function") filter = d3_selection_filter(filter);
-
- for (var j = 0, m = this.length; j < m; j++) {
- subgroups.push(subgroup = []);
- subgroup.parentNode = (group = this[j]).parentNode;
- for (var i = 0, n = group.length; i < n; i++) {
- if ((node = group[i]) && filter.call(node, node.__data__, i)) {
- subgroup.push(node);
- }
- }
- }
-
- return d3_selection(subgroups);
-};
-
-function d3_selection_filter(selector) {
- return function() {
- return d3_selectMatches(this, selector);
- };
-}
-d3_selectionPrototype.map = function(map) {
- return this.each(function() {
- this.__data__ = map.apply(this, arguments);
- });
-};
-d3_selectionPrototype.order = function() {
- for (var j = -1, m = this.length; ++j < m;) {
- for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
- if (node = group[i]) {
- if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
- next = node;
- }
- }
- }
- return this;
-};
-d3_selectionPrototype.sort = function(comparator) {
- comparator = d3_selection_sortComparator.apply(this, arguments);
- for (var j = -1, m = this.length; ++j < m;) this[j].sort(comparator);
- return this.order();
-};
-
-function d3_selection_sortComparator(comparator) {
- if (!arguments.length) comparator = d3.ascending;
- return function(a, b) {
- return comparator(a && a.__data__, b && b.__data__);
- };
-}
-// type can be namespaced, e.g., "click.foo"
-// listener can be null for removal
-d3_selectionPrototype.on = function(type, listener, capture) {
- if (arguments.length < 3) capture = false;
-
- // parse the type specifier
- var name = "__on" + type, i = type.indexOf(".");
- if (i > 0) type = type.substring(0, i);
-
- // if called with only one argument, return the current listener
- if (arguments.length < 2) return (i = this.node()[name]) && i._;
-
- // remove the old event listener, and add the new event listener
- return this.each(function(d, i) {
- var node = this;
-
- if (node[name]) node.removeEventListener(type, node[name], capture);
- if (listener) node.addEventListener(type, node[name] = l, capture);
-
- // wrapped event listener that preserves i
- function l(e) {
- var o = d3.event; // Events can be reentrant (e.g., focus).
- d3.event = e;
- try {
- listener.call(node, node.__data__, i);
- } finally {
- d3.event = o;
- }
- }
-
- // stash the unwrapped listener for retrieval
- l._ = listener;
- });
-};
-d3_selectionPrototype.each = function(callback) {
- for (var j = -1, m = this.length; ++j < m;) {
- for (var group = this[j], i = -1, n = group.length; ++i < n;) {
- var node = group[i];
- if (node) callback.call(node, node.__data__, i, j);
- }
- }
- return this;
-};
-//
-// Note: assigning to the arguments array simultaneously changes the value of
-// the corresponding argument!
-//
-// TODO The `this` argument probably shouldn't be the first argument to the
-// callback, anyway, since it's redundant. However, that will require a major
-// version bump due to backwards compatibility, so I'm not changing it right
-// away.
-//
-d3_selectionPrototype.call = function(callback) {
- callback.apply(this, (arguments[0] = this, arguments));
- return this;
-};
-d3_selectionPrototype.empty = function() {
- return !this.node();
-};
-d3_selectionPrototype.node = function(callback) {
- for (var j = 0, m = this.length; j < m; j++) {
- for (var group = this[j], i = 0, n = group.length; i < n; i++) {
- var node = group[i];
- if (node) return node;
- }
- }
- return null;
-};
-d3_selectionPrototype.transition = function() {
- var subgroups = [],
- subgroup,
- node;
-
- for (var j = -1, m = this.length; ++j < m;) {
- subgroups.push(subgroup = []);
- for (var group = this[j], i = -1, n = group.length; ++i < n;) {
- subgroup.push((node = group[i]) ? {node: node, delay: 0, duration: 250} : null);
- }
- }
-
- return d3_transition(subgroups, d3_transitionInheritId || ++d3_transitionId, Date.now());
-};
-var d3_selectionRoot = d3_selection([[document]]);
-
-d3_selectionRoot[0].parentNode = d3_selectRoot;
-
-// TODO fast singleton implementation!
-// TODO select(function)
-d3.select = function(selector) {
- return typeof selector === "string"
- ? d3_selectionRoot.select(selector)
- : d3_selection([[selector]]); // assume node
-};
-
-// TODO selectAll(function)
-d3.selectAll = function(selector) {
- return typeof selector === "string"
- ? d3_selectionRoot.selectAll(selector)
- : d3_selection([d3_array(selector)]); // assume node[]
-};
-function d3_selection_enter(selection) {
- d3_arraySubclass(selection, d3_selection_enterPrototype);
- return selection;
-}
-
-var d3_selection_enterPrototype = [];
-
-d3_selection_enterPrototype.append = d3_selectionPrototype.append;
-d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;
-d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
-d3_selection_enterPrototype.node = d3_selectionPrototype.node;
-d3_selection_enterPrototype.select = function(selector) {
- var subgroups = [],
- subgroup,
- subnode,
- upgroup,
- group,
- node;
-
- for (var j = -1, m = this.length; ++j < m;) {
- upgroup = (group = this[j]).update;
- subgroups.push(subgroup = []);
- subgroup.parentNode = group.parentNode;
- for (var i = -1, n = group.length; ++i < n;) {
- if (node = group[i]) {
- subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));
- subnode.__data__ = node.__data__;
- } else {
- subgroup.push(null);
- }
- }
- }
-
- return d3_selection(subgroups);
-};
-function d3_transition(groups, id, time) {
- d3_arraySubclass(groups, d3_transitionPrototype);
-
- var tweens = {},
- event = d3.dispatch("start", "end"),
- ease = d3_transitionEase;
-
- groups.id = id;
-
- groups.time = time;
-
- groups.tween = function(name, tween) {
- if (arguments.length < 2) return tweens[name];
- if (tween == null) delete tweens[name];
- else tweens[name] = tween;
- return groups;
- };
-
- groups.ease = function(value) {
- if (!arguments.length) return ease;
- ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);
- return groups;
- };
-
- groups.each = function(type, listener) {
- if (arguments.length < 2) return d3_transition_each.call(groups, type);
- event.on(type, listener);
- return groups;
- };
-
- d3.timer(function(elapsed) {
- groups.each(function(d, i, j) {
- var tweened = [],
- node = this,
- delay = groups[j][i].delay,
- duration = groups[j][i].duration,
- lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0});
-
- ++lock.count;
-
- delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time);
-
- function start(elapsed) {
- if (lock.active > id) return stop();
- lock.active = id;
-
- for (var tween in tweens) {
- if (tween = tweens[tween].call(node, d, i)) {
- tweened.push(tween);
- }
- }
-
- event.start.call(node, d, i);
- if (!tick(elapsed)) d3.timer(tick, 0, time);
- return 1;
- }
-
- function tick(elapsed) {
- if (lock.active !== id) return stop();
-
- var t = (elapsed - delay) / duration,
- e = ease(t),
- n = tweened.length;
-
- while (n > 0) {
- tweened[--n].call(node, e);
- }
-
- if (t >= 1) {
- stop();
- d3_transitionInheritId = id;
- event.end.call(node, d, i);
- d3_transitionInheritId = 0;
- return 1;
- }
- }
-
- function stop() {
- if (!--lock.count) delete node.__transition__;
- return 1;
- }
- });
- return 1;
- }, 0, time);
-
- return groups;
-}
-
-var d3_transitionRemove = {};
-
-function d3_transitionNull(d, i, a) {
- return a != "" && d3_transitionRemove;
-}
-
-function d3_transitionTween(name, b) {
- var interpolate = d3_interpolateByName(name);
-
- function transitionFunction(d, i, a) {
- var v = b.call(this, d, i);
- return v == null
- ? a != "" && d3_transitionRemove
- : a != v && interpolate(a, v);
- }
-
- function transitionString(d, i, a) {
- return a != b && interpolate(a, b);
- }
-
- return typeof b === "function" ? transitionFunction
- : b == null ? d3_transitionNull
- : (b += "", transitionString);
-}
-
-var d3_transitionPrototype = [],
- d3_transitionId = 0,
- d3_transitionInheritId = 0,
- d3_transitionEase = d3.ease("cubic-in-out");
-
-d3_transitionPrototype.call = d3_selectionPrototype.call;
-
-d3.transition = function() {
- return d3_selectionRoot.transition();
-};
-
-d3.transition.prototype = d3_transitionPrototype;
-d3_transitionPrototype.select = function(selector) {
- var subgroups = [],
- subgroup,
- subnode,
- node;
-
- if (typeof selector !== "function") selector = d3_selection_selector(selector);
-
- for (var j = -1, m = this.length; ++j < m;) {
- subgroups.push(subgroup = []);
- for (var group = this[j], i = -1, n = group.length; ++i < n;) {
- if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) {
- if ("__data__" in node.node) subnode.__data__ = node.node.__data__;
- subgroup.push({node: subnode, delay: node.delay, duration: node.duration});
- } else {
- subgroup.push(null);
- }
- }
- }
-
- return d3_transition(subgroups, this.id, this.time).ease(this.ease());
-};
-d3_transitionPrototype.selectAll = function(selector) {
- var subgroups = [],
- subgroup,
- subnodes,
- node;
-
- if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
-
- for (var j = -1, m = this.length; ++j < m;) {
- for (var group = this[j], i = -1, n = group.length; ++i < n;) {
- if (node = group[i]) {
- subnodes = selector.call(node.node, node.node.__data__, i);
- subgroups.push(subgroup = []);
- for (var k = -1, o = subnodes.length; ++k < o;) {
- subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration});
- }
- }
- }
- }
-
- return d3_transition(subgroups, this.id, this.time).ease(this.ease());
-};
-d3_transitionPrototype.attr = function(name, value) {
- return this.attrTween(name, d3_transitionTween(name, value));
-};
-
-d3_transitionPrototype.attrTween = function(nameNS, tween) {
- var name = d3.ns.qualify(nameNS);
-
- function attrTween(d, i) {
- var f = tween.call(this, d, i, this.getAttribute(name));
- return f === d3_transitionRemove
- ? (this.removeAttribute(name), null)
- : f && function(t) { this.setAttribute(name, f(t)); };
- }
-
- function attrTweenNS(d, i) {
- var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
- return f === d3_transitionRemove
- ? (this.removeAttributeNS(name.space, name.local), null)
- : f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); };
- }
-
- return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
-};
-d3_transitionPrototype.style = function(name, value, priority) {
- if (arguments.length < 3) priority = "";
- return this.styleTween(name, d3_transitionTween(name, value), priority);
-};
-
-d3_transitionPrototype.styleTween = function(name, tween, priority) {
- if (arguments.length < 3) priority = "";
- return this.tween("style." + name, function(d, i) {
- var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
- return f === d3_transitionRemove
- ? (this.style.removeProperty(name), null)
- : f && function(t) { this.style.setProperty(name, f(t), priority); };
- });
-};
-d3_transitionPrototype.text = function(value) {
- return this.tween("text", function(d, i) {
- this.textContent = typeof value === "function"
- ? value.call(this, d, i)
- : value;
- });
-};
-d3_transitionPrototype.remove = function() {
- return this.each("end", function() {
- var p;
- if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
- });
-};
-d3_transitionPrototype.delay = function(value) {
- var groups = this;
- return groups.each(typeof value === "function"
- ? function(d, i, j) { groups[j][i].delay = +value.apply(this, arguments); }
- : (value = +value, function(d, i, j) { groups[j][i].delay = value; }));
-};
-d3_transitionPrototype.duration = function(value) {
- var groups = this;
- return groups.each(typeof value === "function"
- ? function(d, i, j) { groups[j][i].duration = +value.apply(this, arguments); }
- : (value = +value, function(d, i, j) { groups[j][i].duration = value; }));
-};
-function d3_transition_each(callback) {
- for (var j = 0, m = this.length; j < m; j++) {
- for (var group = this[j], i = 0, n = group.length; i < n; i++) {
- var node = group[i];
- if (node) callback.call(node = node.node, node.__data__, i, j);
- }
- }
- return this;
-}
-d3_transitionPrototype.transition = function() {
- return this.select(d3_this);
-};
-var d3_timer_queue = null,
- d3_timer_interval, // is an interval (or frame) active?
- d3_timer_timeout; // is a timeout active?
-
-// The timer will continue to fire until callback returns true.
-d3.timer = function(callback, delay, then) {
- var found = false,
- t0,
- t1 = d3_timer_queue;
-
- if (arguments.length < 3) {
- if (arguments.length < 2) delay = 0;
- else if (!isFinite(delay)) return;
- then = Date.now();
- }
-
- // See if the callback's already in the queue.
- while (t1) {
- if (t1.callback === callback) {
- t1.then = then;
- t1.delay = delay;
- found = true;
- break;
- }
- t0 = t1;
- t1 = t1.next;
- }
-
- // Otherwise, add the callback to the queue.
- if (!found) d3_timer_queue = {
- callback: callback,
- then: then,
- delay: delay,
- next: d3_timer_queue
- };
-
- // Start animatin'!
- if (!d3_timer_interval) {
- d3_timer_timeout = clearTimeout(d3_timer_timeout);
- d3_timer_interval = 1;
- d3_timer_frame(d3_timer_step);
- }
-}
-
-function d3_timer_step() {
- var elapsed,
- now = Date.now(),
- t1 = d3_timer_queue;
-
- while (t1) {
- elapsed = now - t1.then;
- if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);
- t1 = t1.next;
- }
-
- var delay = d3_timer_flush() - now;
- if (delay > 24) {
- if (isFinite(delay)) {
- clearTimeout(d3_timer_timeout);
- d3_timer_timeout = setTimeout(d3_timer_step, delay);
- }
- d3_timer_interval = 0;
- } else {
- d3_timer_interval = 1;
- d3_timer_frame(d3_timer_step);
- }
-}
-
-d3.timer.flush = function() {
- var elapsed,
- now = Date.now(),
- t1 = d3_timer_queue;
-
- while (t1) {
- elapsed = now - t1.then;
- if (!t1.delay) t1.flush = t1.callback(elapsed);
- t1 = t1.next;
- }
-
- d3_timer_flush();
-};
-
-// Flush after callbacks, to avoid concurrent queue modification.
-function d3_timer_flush() {
- var t0 = null,
- t1 = d3_timer_queue,
- then = Infinity;
- while (t1) {
- if (t1.flush) {
- t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
- } else {
- then = Math.min(then, t1.then + t1.delay);
- t1 = (t0 = t1).next;
- }
- }
- return then;
-}
-
-var d3_timer_frame = window.requestAnimationFrame
- || window.webkitRequestAnimationFrame
- || window.mozRequestAnimationFrame
- || window.oRequestAnimationFrame
- || window.msRequestAnimationFrame
- || function(callback) { setTimeout(callback, 17); };
-d3.transform = function(string) {
- var g = document.createElementNS(d3.ns.prefix.svg, "g"),
- identity = {a: 1, b: 0, c: 0, d: 1, e: 0, f: 0};
- return (d3.transform = function(string) {
- g.setAttribute("transform", string);
- var t = g.transform.baseVal.consolidate();
- return new d3_transform(t ? t.matrix : identity);
- })(string);
-};
-
-// Compute x-scale and normalize the first row.
-// Compute shear and make second row orthogonal to first.
-// Compute y-scale and normalize the second row.
-// Finally, compute the rotation.
-function d3_transform(m) {
- var r0 = [m.a, m.b],
- r1 = [m.c, m.d],
- kx = d3_transformNormalize(r0),
- kz = d3_transformDot(r0, r1),
- ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
- if (r0[0] * r1[1] < r1[0] * r0[1]) {
- r0[0] *= -1;
- r0[1] *= -1;
- kx *= -1;
- kz *= -1;
- }
- this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees;
- this.translate = [m.e, m.f];
- this.scale = [kx, ky];
- this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0;
-};
-
-d3_transform.prototype.toString = function() {
- return "translate(" + this.translate
- + ")rotate(" + this.rotate
- + ")skewX(" + this.skew
- + ")scale(" + this.scale
- + ")";
-};
-
-function d3_transformDot(a, b) {
- return a[0] * b[0] + a[1] * b[1];
-}
-
-function d3_transformNormalize(a) {
- var k = Math.sqrt(d3_transformDot(a, a));
- if (k) {
- a[0] /= k;
- a[1] /= k;
- }
- return k;
-}
-
-function d3_transformCombine(a, b, k) {
- a[0] += k * b[0];
- a[1] += k * b[1];
- return a;
-}
-
-var d3_transformDegrees = 180 / Math.PI;
-function d3_noop() {}
-d3.scale = {};
-
-function d3_scaleExtent(domain) {
- var start = domain[0], stop = domain[domain.length - 1];
- return start < stop ? [start, stop] : [stop, start];
-}
-
-function d3_scaleRange(scale) {
- return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
-}
-function d3_scale_nice(domain, nice) {
- var i0 = 0,
- i1 = domain.length - 1,
- x0 = domain[i0],
- x1 = domain[i1],
- dx;
-
- if (x1 < x0) {
- dx = i0; i0 = i1; i1 = dx;
- dx = x0; x0 = x1; x1 = dx;
- }
-
- if (dx = x1 - x0) {
- nice = nice(dx);
- domain[i0] = nice.floor(x0);
- domain[i1] = nice.ceil(x1);
- }
-
- return domain;
-}
-
-function d3_scale_niceDefault() {
- return Math;
-}
-d3.scale.linear = function() {
- return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false);
-};
-
-function d3_scale_linear(domain, range, interpolate, clamp) {
- var output,
- input;
-
- function rescale() {
- var linear = domain.length == 2 ? d3_scale_bilinear : d3_scale_polylinear,
- uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
- output = linear(domain, range, uninterpolate, interpolate);
- input = linear(range, domain, uninterpolate, d3.interpolate);
- return scale;
- }
-
- function scale(x) {
- return output(x);
- }
-
- // Note: requires range is coercible to number!
- scale.invert = function(y) {
- return input(y);
- };
-
- scale.domain = function(x) {
- if (!arguments.length) return domain;
- domain = x.map(Number);
- return rescale();
- };
-
- scale.range = function(x) {
- if (!arguments.length) return range;
- range = x;
- return rescale();
- };
-
- scale.rangeRound = function(x) {
- return scale.range(x).interpolate(d3.interpolateRound);
- };
-
- scale.clamp = function(x) {
- if (!arguments.length) return clamp;
- clamp = x;
- return rescale();
- };
-
- scale.interpolate = function(x) {
- if (!arguments.length) return interpolate;
- interpolate = x;
- return rescale();
- };
-
- scale.ticks = function(m) {
- return d3_scale_linearTicks(domain, m);
- };
-
- scale.tickFormat = function(m) {
- return d3_scale_linearTickFormat(domain, m);
- };
-
- scale.nice = function() {
- d3_scale_nice(domain, d3_scale_linearNice);
- return rescale();
- };
-
- scale.copy = function() {
- return d3_scale_linear(domain, range, interpolate, clamp);
- };
-
- return rescale();
-};
-
-function d3_scale_linearRebind(scale, linear) {
- return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
-}
-
-function d3_scale_linearNice(dx) {
- dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
- return {
- floor: function(x) { return Math.floor(x / dx) * dx; },
- ceil: function(x) { return Math.ceil(x / dx) * dx; }
- };
-}
-
-// TODO Dates? Ugh.
-function d3_scale_linearTickRange(domain, m) {
- var extent = d3_scaleExtent(domain),
- span = extent[1] - extent[0],
- step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)),
- err = m / span * step;
-
- // Filter ticks to get closer to the desired count.
- if (err <= .15) step *= 10;
- else if (err <= .35) step *= 5;
- else if (err <= .75) step *= 2;
-
- // Round start and stop values to step interval.
- extent[0] = Math.ceil(extent[0] / step) * step;
- extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive
- extent[2] = step;
- return extent;
-}
-
-function d3_scale_linearTicks(domain, m) {
- return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
-}
-
-function d3_scale_linearTickFormat(domain, m) {
- return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f");
-}
-function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
- var u = uninterpolate(domain[0], domain[1]),
- i = interpolate(range[0], range[1]);
- return function(x) {
- return i(u(x));
- };
-}
-function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
- var u = [],
- i = [],
- j = 0,
- n = domain.length;
-
- while (++j < n) {
- u.push(uninterpolate(domain[j - 1], domain[j]));
- i.push(interpolate(range[j - 1], range[j]));
- }
-
- return function(x) {
- var j = d3.bisect(domain, x, 1, domain.length - 1) - 1;
- return i[j](u[j](x));
- };
-}
-d3.scale.log = function() {
- return d3_scale_log(d3.scale.linear(), d3_scale_logp);
-};
-
-function d3_scale_log(linear, log) {
- var pow = log.pow;
-
- function scale(x) {
- return linear(log(x));
- }
-
- scale.invert = function(x) {
- return pow(linear.invert(x));
- };
-
- scale.domain = function(x) {
- if (!arguments.length) return linear.domain().map(pow);
- log = x[0] < 0 ? d3_scale_logn : d3_scale_logp;
- pow = log.pow;
- linear.domain(x.map(log));
- return scale;
- };
-
- scale.nice = function() {
- linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault));
- return scale;
- };
-
- scale.ticks = function() {
- var extent = d3_scaleExtent(linear.domain()),
- ticks = [];
- if (extent.every(isFinite)) {
- var i = Math.floor(extent[0]),
- j = Math.ceil(extent[1]),
- u = pow(extent[0]),
- v = pow(extent[1]);
- if (log === d3_scale_logn) {
- ticks.push(pow(i));
- for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);
- } else {
- for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
- ticks.push(pow(i));
- }
- for (i = 0; ticks[i] < u; i++) {} // strip small values
- for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values
- ticks = ticks.slice(i, j);
- }
- return ticks;
- };
-
- scale.tickFormat = function(n, format) {
- if (arguments.length < 2) format = d3_scale_logFormat;
- if (arguments.length < 1) return format;
- var k = n / scale.ticks().length,
- f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil),
- e;
- return function(d) {
- return d / pow(f(log(d) + e)) < k ? format(d) : "";
- };
- };
-
- scale.copy = function() {
- return d3_scale_log(linear.copy(), log);
- };
-
- return d3_scale_linearRebind(scale, linear);
-};
-
-var d3_scale_logFormat = d3.format(".0e");
-
-function d3_scale_logp(x) {
- return Math.log(x < 0 ? 0 : x) / Math.LN10;
-}
-
-function d3_scale_logn(x) {
- return -Math.log(x > 0 ? 0 : -x) / Math.LN10;
-}
-
-d3_scale_logp.pow = function(x) {
- return Math.pow(10, x);
-};
-
-d3_scale_logn.pow = function(x) {
- return -Math.pow(10, -x);
-};
-d3.scale.pow = function() {
- return d3_scale_pow(d3.scale.linear(), 1);
-};
-
-function d3_scale_pow(linear, exponent) {
- var powp = d3_scale_powPow(exponent),
- powb = d3_scale_powPow(1 / exponent);
-
- function scale(x) {
- return linear(powp(x));
- }
-
- scale.invert = function(x) {
- return powb(linear.invert(x));
- };
-
- scale.domain = function(x) {
- if (!arguments.length) return linear.domain().map(powb);
- linear.domain(x.map(powp));
- return scale;
- };
-
- scale.ticks = function(m) {
- return d3_scale_linearTicks(scale.domain(), m);
- };
-
- scale.tickFormat = function(m) {
- return d3_scale_linearTickFormat(scale.domain(), m);
- };
-
- scale.nice = function() {
- return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
- };
-
- scale.exponent = function(x) {
- if (!arguments.length) return exponent;
- var domain = scale.domain();
- powp = d3_scale_powPow(exponent = x);
- powb = d3_scale_powPow(1 / exponent);
- return scale.domain(domain);
- };
-
- scale.copy = function() {
- return d3_scale_pow(linear.copy(), exponent);
- };
-
- return d3_scale_linearRebind(scale, linear);
-};
-
-function d3_scale_powPow(e) {
- return function(x) {
- return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
- };
-}
-d3.scale.sqrt = function() {
- return d3.scale.pow().exponent(.5);
-};
-d3.scale.ordinal = function() {
- return d3_scale_ordinal([], {t: "range", x: []});
-};
-
-function d3_scale_ordinal(domain, ranger) {
- var index,
- range,
- rangeBand;
-
- function scale(x) {
- return range[((index[x] || (index[x] = domain.push(x))) - 1) % range.length];
- }
-
- function steps(start, step) {
- return d3.range(domain.length).map(function(i) { return start + step * i; });
- }
-
- scale.domain = function(x) {
- if (!arguments.length) return domain;
- domain = [];
- index = {};
- var i = -1, n = x.length, xi;
- while (++i < n) if (!index[xi = x[i]]) index[xi] = domain.push(xi);
- return scale[ranger.t](ranger.x, ranger.p);
- };
-
- scale.range = function(x) {
- if (!arguments.length) return range;
- range = x;
- rangeBand = 0;
- ranger = {t: "range", x: x};
- return scale;
- };
-
- scale.rangePoints = function(x, padding) {
- if (arguments.length < 2) padding = 0;
- var start = x[0],
- stop = x[1],
- step = (stop - start) / (domain.length - 1 + padding);
- range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);
- rangeBand = 0;
- ranger = {t: "rangePoints", x: x, p: padding};
- return scale;
- };
-
- scale.rangeBands = function(x, padding) {
- if (arguments.length < 2) padding = 0;
- var start = x[0],
- stop = x[1],
- step = (stop - start) / (domain.length + padding);
- range = steps(start + step * padding, step);
- rangeBand = step * (1 - padding);
- ranger = {t: "rangeBands", x: x, p: padding};
- return scale;
- };
-
- scale.rangeRoundBands = function(x, padding) {
- if (arguments.length < 2) padding = 0;
- var start = x[0],
- stop = x[1],
- step = Math.floor((stop - start) / (domain.length + padding));
- range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step);
- rangeBand = Math.round(step * (1 - padding));
- ranger = {t: "rangeRoundBands", x: x, p: padding};
- return scale;
- };
-
- scale.rangeBand = function() {
- return rangeBand;
- };
-
- scale.rangeExtent = function() {
- return ranger.t === "range" ? d3_scaleExtent(ranger.x) : ranger.x;
- };
-
- scale.copy = function() {
- return d3_scale_ordinal(domain, ranger);
- };
-
- return scale.domain(domain);
-};
-/*
- * This product includes color specifications and designs developed by Cynthia
- * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information.
- */
-
-d3.scale.category10 = function() {
- return d3.scale.ordinal().range(d3_category10);
-};
-
-d3.scale.category20 = function() {
- return d3.scale.ordinal().range(d3_category20);
-};
-
-d3.scale.category20b = function() {
- return d3.scale.ordinal().range(d3_category20b);
-};
-
-d3.scale.category20c = function() {
- return d3.scale.ordinal().range(d3_category20c);
-};
-
-var d3_category10 = [
- "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd",
- "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf"
-];
-
-var d3_category20 = [
- "#1f77b4", "#aec7e8",
- "#ff7f0e", "#ffbb78",
- "#2ca02c", "#98df8a",
- "#d62728", "#ff9896",
- "#9467bd", "#c5b0d5",
- "#8c564b", "#c49c94",
- "#e377c2", "#f7b6d2",
- "#7f7f7f", "#c7c7c7",
- "#bcbd22", "#dbdb8d",
- "#17becf", "#9edae5"
-];
-
-var d3_category20b = [
- "#393b79", "#5254a3", "#6b6ecf", "#9c9ede",
- "#637939", "#8ca252", "#b5cf6b", "#cedb9c",
- "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94",
- "#843c39", "#ad494a", "#d6616b", "#e7969c",
- "#7b4173", "#a55194", "#ce6dbd", "#de9ed6"
-];
-
-var d3_category20c = [
- "#3182bd", "#6baed6", "#9ecae1", "#c6dbef",
- "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2",
- "#31a354", "#74c476", "#a1d99b", "#c7e9c0",
- "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb",
- "#636363", "#969696", "#bdbdbd", "#d9d9d9"
-];
-d3.scale.quantile = function() {
- return d3_scale_quantile([], []);
-};
-
-function d3_scale_quantile(domain, range) {
- var thresholds;
-
- function rescale() {
- var k = 0,
- n = domain.length,
- q = range.length;
- thresholds = [];
- while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
- return scale;
- }
-
- function scale(x) {
- if (isNaN(x = +x)) return NaN;
- return range[d3.bisect(thresholds, x)];
- }
-
- scale.domain = function(x) {
- if (!arguments.length) return domain;
- domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending);
- return rescale();
- };
-
- scale.range = function(x) {
- if (!arguments.length) return range;
- range = x;
- return rescale();
- };
-
- scale.quantiles = function() {
- return thresholds;
- };
-
- scale.copy = function() {
- return d3_scale_quantile(domain, range); // copy on write!
- };
-
- return rescale();
-};
-d3.scale.quantize = function() {
- return d3_scale_quantize(0, 1, [0, 1]);
-};
-
-function d3_scale_quantize(x0, x1, range) {
- var kx, i;
-
- function scale(x) {
- return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
- }
-
- function rescale() {
- kx = range.length / (x1 - x0);
- i = range.length - 1;
- return scale;
- }
-
- scale.domain = function(x) {
- if (!arguments.length) return [x0, x1];
- x0 = +x[0];
- x1 = +x[x.length - 1];
- return rescale();
- };
-
- scale.range = function(x) {
- if (!arguments.length) return range;
- range = x;
- return rescale();
- };
-
- scale.copy = function() {
- return d3_scale_quantize(x0, x1, range); // copy on write
- };
-
- return rescale();
-};
-d3.svg = {};
-d3.svg.arc = function() {
- var innerRadius = d3_svg_arcInnerRadius,
- outerRadius = d3_svg_arcOuterRadius,
- startAngle = d3_svg_arcStartAngle,
- endAngle = d3_svg_arcEndAngle;
-
- function arc() {
- var r0 = innerRadius.apply(this, arguments),
- r1 = outerRadius.apply(this, arguments),
- a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset,
- a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset,
- da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0),
- df = da < Math.PI ? "0" : "1",
- c0 = Math.cos(a0),
- s0 = Math.sin(a0),
- c1 = Math.cos(a1),
- s1 = Math.sin(a1);
- return da >= d3_svg_arcMax
- ? (r0
- ? "M0," + r1
- + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
- + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
- + "M0," + r0
- + "A" + r0 + "," + r0 + " 0 1,0 0," + (-r0)
- + "A" + r0 + "," + r0 + " 0 1,0 0," + r0
- + "Z"
- : "M0," + r1
- + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
- + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
- + "Z")
- : (r0
- ? "M" + r1 * c0 + "," + r1 * s0
- + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
- + "L" + r0 * c1 + "," + r0 * s1
- + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0
- + "Z"
- : "M" + r1 * c0 + "," + r1 * s0
- + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
- + "L0,0"
- + "Z");
- }
-
- arc.innerRadius = function(v) {
- if (!arguments.length) return innerRadius;
- innerRadius = d3.functor(v);
- return arc;
- };
-
- arc.outerRadius = function(v) {
- if (!arguments.length) return outerRadius;
- outerRadius = d3.functor(v);
- return arc;
- };
-
- arc.startAngle = function(v) {
- if (!arguments.length) return startAngle;
- startAngle = d3.functor(v);
- return arc;
- };
-
- arc.endAngle = function(v) {
- if (!arguments.length) return endAngle;
- endAngle = d3.functor(v);
- return arc;
- };
-
- arc.centroid = function() {
- var r = (innerRadius.apply(this, arguments)
- + outerRadius.apply(this, arguments)) / 2,
- a = (startAngle.apply(this, arguments)
- + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
- return [Math.cos(a) * r, Math.sin(a) * r];
- };
-
- return arc;
-};
-
-var d3_svg_arcOffset = -Math.PI / 2,
- d3_svg_arcMax = 2 * Math.PI - 1e-6;
-
-function d3_svg_arcInnerRadius(d) {
- return d.innerRadius;
-}
-
-function d3_svg_arcOuterRadius(d) {
- return d.outerRadius;
-}
-
-function d3_svg_arcStartAngle(d) {
- return d.startAngle;
-}
-
-function d3_svg_arcEndAngle(d) {
- return d.endAngle;
-}
-function d3_svg_line(projection) {
- var x = d3_svg_lineX,
- y = d3_svg_lineY,
- interpolate = "linear",
- interpolator = d3_svg_lineInterpolators[interpolate],
- tension = .7;
-
- function line(d) {
- return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension);
- }
-
- line.x = function(v) {
- if (!arguments.length) return x;
- x = v;
- return line;
- };
-
- line.y = function(v) {
- if (!arguments.length) return y;
- y = v;
- return line;
- };
-
- line.interpolate = function(v) {
- if (!arguments.length) return interpolate;
- interpolator = d3_svg_lineInterpolators[interpolate = v];
- return line;
- };
-
- line.tension = function(v) {
- if (!arguments.length) return tension;
- tension = v;
- return line;
- };
-
- return line;
-}
-
-d3.svg.line = function() {
- return d3_svg_line(Object);
-};
-
-// Converts the specified array of data into an array of points
-// (x-y tuples), by evaluating the specified `x` and `y` functions on each
-// data point. The `this` context of the evaluated functions is the specified
-// "self" object; each function is passed the current datum and index.
-function d3_svg_linePoints(self, d, x, y) {
- var points = [],
- i = -1,
- n = d.length,
- fx = typeof x === "function",
- fy = typeof y === "function",
- value;
- if (fx && fy) {
- while (++i < n) points.push([
- x.call(self, value = d[i], i),
- y.call(self, value, i)
- ]);
- } else if (fx) {
- while (++i < n) points.push([x.call(self, d[i], i), y]);
- } else if (fy) {
- while (++i < n) points.push([x, y.call(self, d[i], i)]);
- } else {
- while (++i < n) points.push([x, y]);
- }
- return points;
-}
-
-// The default `x` property, which references d[0].
-function d3_svg_lineX(d) {
- return d[0];
-}
-
-// The default `y` property, which references d[1].
-function d3_svg_lineY(d) {
- return d[1];
-}
-
-// The various interpolators supported by the `line` class.
-var d3_svg_lineInterpolators = {
- "linear": d3_svg_lineLinear,
- "step-before": d3_svg_lineStepBefore,
- "step-after": d3_svg_lineStepAfter,
- "basis": d3_svg_lineBasis,
- "basis-open": d3_svg_lineBasisOpen,
- "basis-closed": d3_svg_lineBasisClosed,
- "bundle": d3_svg_lineBundle,
- "cardinal": d3_svg_lineCardinal,
- "cardinal-open": d3_svg_lineCardinalOpen,
- "cardinal-closed": d3_svg_lineCardinalClosed,
- "monotone": d3_svg_lineMonotone
-};
-
-// Linear interpolation; generates "L" commands.
-function d3_svg_lineLinear(points) {
- var i = 0,
- n = points.length,
- p = points[0],
- path = [p[0], ",", p[1]];
- while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]);
- return path.join("");
-}
-
-// Step interpolation; generates "H" and "V" commands.
-function d3_svg_lineStepBefore(points) {
- var i = 0,
- n = points.length,
- p = points[0],
- path = [p[0], ",", p[1]];
- while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
- return path.join("");
-}
-
-// Step interpolation; generates "H" and "V" commands.
-function d3_svg_lineStepAfter(points) {
- var i = 0,
- n = points.length,
- p = points[0],
- path = [p[0], ",", p[1]];
- while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
- return path.join("");
-}
-
-// Open cardinal spline interpolation; generates "C" commands.
-function d3_svg_lineCardinalOpen(points, tension) {
- return points.length < 4
- ? d3_svg_lineLinear(points)
- : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1),
- d3_svg_lineCardinalTangents(points, tension));
-}
-
-// Closed cardinal spline interpolation; generates "C" commands.
-function d3_svg_lineCardinalClosed(points, tension) {
- return points.length < 3
- ? d3_svg_lineLinear(points)
- : points[0] + d3_svg_lineHermite((points.push(points[0]), points),
- d3_svg_lineCardinalTangents([points[points.length - 2]]
- .concat(points, [points[1]]), tension));
-}
-
-// Cardinal spline interpolation; generates "C" commands.
-function d3_svg_lineCardinal(points, tension, closed) {
- return points.length < 3
- ? d3_svg_lineLinear(points)
- : points[0] + d3_svg_lineHermite(points,
- d3_svg_lineCardinalTangents(points, tension));
-}
-
-// Hermite spline construction; generates "C" commands.
-function d3_svg_lineHermite(points, tangents) {
- if (tangents.length < 1
- || (points.length != tangents.length
- && points.length != tangents.length + 2)) {
- return d3_svg_lineLinear(points);
- }
-
- var quad = points.length != tangents.length,
- path = "",
- p0 = points[0],
- p = points[1],
- t0 = tangents[0],
- t = t0,
- pi = 1;
-
- if (quad) {
- path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3)
- + "," + p[0] + "," + p[1];
- p0 = points[1];
- pi = 2;
- }
-
- if (tangents.length > 1) {
- t = tangents[1];
- p = points[pi];
- pi++;
- path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1])
- + "," + (p[0] - t[0]) + "," + (p[1] - t[1])
- + "," + p[0] + "," + p[1];
- for (var i = 2; i < tangents.length; i++, pi++) {
- p = points[pi];
- t = tangents[i];
- path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1])
- + "," + p[0] + "," + p[1];
- }
- }
-
- if (quad) {
- var lp = points[pi];
- path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3)
- + "," + lp[0] + "," + lp[1];
- }
-
- return path;
-}
-
-// Generates tangents for a cardinal spline.
-function d3_svg_lineCardinalTangents(points, tension) {
- var tangents = [],
- a = (1 - tension) / 2,
- p0,
- p1 = points[0],
- p2 = points[1],
- i = 1,
- n = points.length;
- while (++i < n) {
- p0 = p1;
- p1 = p2;
- p2 = points[i];
- tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]);
- }
- return tangents;
-}
-
-// B-spline interpolation; generates "C" commands.
-function d3_svg_lineBasis(points) {
- if (points.length < 3) return d3_svg_lineLinear(points);
- var i = 1,
- n = points.length,
- pi = points[0],
- x0 = pi[0],
- y0 = pi[1],
- px = [x0, x0, x0, (pi = points[1])[0]],
- py = [y0, y0, y0, pi[1]],
- path = [x0, ",", y0];
- d3_svg_lineBasisBezier(path, px, py);
- while (++i < n) {
- pi = points[i];
- px.shift(); px.push(pi[0]);
- py.shift(); py.push(pi[1]);
- d3_svg_lineBasisBezier(path, px, py);
- }
- i = -1;
- while (++i < 2) {
- px.shift(); px.push(pi[0]);
- py.shift(); py.push(pi[1]);
- d3_svg_lineBasisBezier(path, px, py);
- }
- return path.join("");
-}
-
-// Open B-spline interpolation; generates "C" commands.
-function d3_svg_lineBasisOpen(points) {
- if (points.length < 4) return d3_svg_lineLinear(points);
- var path = [],
- i = -1,
- n = points.length,
- pi,
- px = [0],
- py = [0];
- while (++i < 3) {
- pi = points[i];
- px.push(pi[0]);
- py.push(pi[1]);
- }
- path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px)
- + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
- --i; while (++i < n) {
- pi = points[i];
- px.shift(); px.push(pi[0]);
- py.shift(); py.push(pi[1]);
- d3_svg_lineBasisBezier(path, px, py);
- }
- return path.join("");
-}
-
-// Closed B-spline interpolation; generates "C" commands.
-function d3_svg_lineBasisClosed(points) {
- var path,
- i = -1,
- n = points.length,
- m = n + 4,
- pi,
- px = [],
- py = [];
- while (++i < 4) {
- pi = points[i % n];
- px.push(pi[0]);
- py.push(pi[1]);
- }
- path = [
- d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",",
- d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)
- ];
- --i; while (++i < m) {
- pi = points[i % n];
- px.shift(); px.push(pi[0]);
- py.shift(); py.push(pi[1]);
- d3_svg_lineBasisBezier(path, px, py);
- }
- return path.join("");
-}
-
-function d3_svg_lineBundle(points, tension) {
- var n = points.length - 1,
- x0 = points[0][0],
- y0 = points[0][1],
- dx = points[n][0] - x0,
- dy = points[n][1] - y0,
- i = -1,
- p,
- t;
- while (++i <= n) {
- p = points[i];
- t = i / n;
- p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
- p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
- }
- return d3_svg_lineBasis(points);
-}
-
-// Returns the dot product of the given four-element vectors.
-function d3_svg_lineDot4(a, b) {
- return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
-}
-
-// Matrix to transform basis (b-spline) control points to bezier
-// control points. Derived from FvD 11.2.8.
-var d3_svg_lineBasisBezier1 = [0, 2/3, 1/3, 0],
- d3_svg_lineBasisBezier2 = [0, 1/3, 2/3, 0],
- d3_svg_lineBasisBezier3 = [0, 1/6, 2/3, 1/6];
-
-// Pushes a "C" Bézier curve onto the specified path array, given the
-// two specified four-element arrays which define the control points.
-function d3_svg_lineBasisBezier(path, x, y) {
- path.push(
- "C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x),
- ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y),
- ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x),
- ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y),
- ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x),
- ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
-}
-
-// Computes the slope from points p0 to p1.
-function d3_svg_lineSlope(p0, p1) {
- return (p1[1] - p0[1]) / (p1[0] - p0[0]);
-}
-
-// Compute three-point differences for the given points.
-// http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference
-function d3_svg_lineFiniteDifferences(points) {
- var i = 0,
- j = points.length - 1,
- m = [],
- p0 = points[0],
- p1 = points[1],
- d = m[0] = d3_svg_lineSlope(p0, p1);
- while (++i < j) {
- m[i] = d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]));
- }
- m[i] = d;
- return m;
-}
-
-// Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite
-// interpolation. Returns an array of tangent vectors. For details, see
-// http://en.wikipedia.org/wiki/Monotone_cubic_interpolation
-function d3_svg_lineMonotoneTangents(points) {
- var tangents = [],
- d,
- a,
- b,
- s,
- m = d3_svg_lineFiniteDifferences(points),
- i = -1,
- j = points.length - 1;
-
- // The first two steps are done by computing finite-differences:
- // 1. Compute the slopes of the secant lines between successive points.
- // 2. Initialize the tangents at every point as the average of the secants.
-
- // Then, for each segment…
- while (++i < j) {
- d = d3_svg_lineSlope(points[i], points[i + 1]);
-
- // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set
- // mk = m{k + 1} = 0 as the spline connecting these points must be flat to
- // preserve monotonicity. Ignore step 4 and 5 for those k.
-
- if (Math.abs(d) < 1e-6) {
- m[i] = m[i + 1] = 0;
- } else {
- // 4. Let ak = mk / dk and bk = m{k + 1} / dk.
- a = m[i] / d;
- b = m[i + 1] / d;
-
- // 5. Prevent overshoot and ensure monotonicity by restricting the
- // magnitude of vector <ak, bk> to a circle of radius 3.
- s = a * a + b * b;
- if (s > 9) {
- s = d * 3 / Math.sqrt(s);
- m[i] = s * a;
- m[i + 1] = s * b;
- }
- }
- }
-
- // Compute the normalized tangent vector from the slopes. Note that if x is
- // not monotonic, it's possible that the slope will be infinite, so we protect
- // against NaN by setting the coordinate to zero.
- i = -1; while (++i <= j) {
- s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0])
- / (6 * (1 + m[i] * m[i]));
- tangents.push([s || 0, m[i] * s || 0]);
- }
-
- return tangents;
-}
-
-function d3_svg_lineMonotone(points) {
- return points.length < 3
- ? d3_svg_lineLinear(points)
- : points[0] +
- d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
-}
-d3.svg.line.radial = function() {
- var line = d3_svg_line(d3_svg_lineRadial);
- line.radius = line.x, delete line.x;
- line.angle = line.y, delete line.y;
- return line;
-};
-
-function d3_svg_lineRadial(points) {
- var point,
- i = -1,
- n = points.length,
- r,
- a;
- while (++i < n) {
- point = points[i];
- r = point[0];
- a = point[1] + d3_svg_arcOffset;
- point[0] = r * Math.cos(a);
- point[1] = r * Math.sin(a);
- }
- return points;
-}
-function d3_svg_area(projection) {
- var x0 = d3_svg_lineX,
- x1 = d3_svg_lineX,
- y0 = 0,
- y1 = d3_svg_lineY,
- interpolate,
- i0,
- i1,
- tension = .7;
-
- function area(d) {
- if (d.length < 1) return null;
- var points0 = d3_svg_linePoints(this, d, x0, y0),
- points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1);
- return "M" + i0(projection(points1), tension)
- + "L" + i1(projection(points0.reverse()), tension)
- + "Z";
- }
-
- area.x = function(x) {
- if (!arguments.length) return x1;
- x0 = x1 = x;
- return area;
- };
-
- area.x0 = function(x) {
- if (!arguments.length) return x0;
- x0 = x;
- return area;
- };
-
- area.x1 = function(x) {
- if (!arguments.length) return x1;
- x1 = x;
- return area;
- };
-
- area.y = function(y) {
- if (!arguments.length) return y1;
- y0 = y1 = y;
- return area;
- };
-
- area.y0 = function(y) {
- if (!arguments.length) return y0;
- y0 = y;
- return area;
- };
-
- area.y1 = function(y) {
- if (!arguments.length) return y1;
- y1 = y;
- return area;
- };
-
- area.interpolate = function(x) {
- if (!arguments.length) return interpolate;
- i0 = d3_svg_lineInterpolators[interpolate = x];
- i1 = i0.reverse || i0;
- return area;
- };
-
- area.tension = function(x) {
- if (!arguments.length) return tension;
- tension = x;
- return area;
- };
-
- return area.interpolate("linear");
-}
-
-d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
-d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
-
-d3.svg.area = function() {
- return d3_svg_area(Object);
-};
-
-function d3_svg_areaX(points) {
- return function(d, i) {
- return points[i][0];
- };
-}
-
-function d3_svg_areaY(points) {
- return function(d, i) {
- return points[i][1];
- };
-}
-d3.svg.area.radial = function() {
- var area = d3_svg_area(d3_svg_lineRadial);
- area.radius = area.x, delete area.x;
- area.innerRadius = area.x0, delete area.x0;
- area.outerRadius = area.x1, delete area.x1;
- area.angle = area.y, delete area.y;
- area.startAngle = area.y0, delete area.y0;
- area.endAngle = area.y1, delete area.y1;
- return area;
-};
-d3.svg.chord = function() {
- var source = d3_svg_chordSource,
- target = d3_svg_chordTarget,
- radius = d3_svg_chordRadius,
- startAngle = d3_svg_arcStartAngle,
- endAngle = d3_svg_arcEndAngle;
-
- // TODO Allow control point to be customized.
-
- function chord(d, i) {
- var s = subgroup(this, source, d, i),
- t = subgroup(this, target, d, i);
- return "M" + s.p0
- + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t)
- ? curve(s.r, s.p1, s.r, s.p0)
- : curve(s.r, s.p1, t.r, t.p0)
- + arc(t.r, t.p1, t.a1 - t.a0)
- + curve(t.r, t.p1, s.r, s.p0))
- + "Z";
- }
-
- function subgroup(self, f, d, i) {
- var subgroup = f.call(self, d, i),
- r = radius.call(self, subgroup, i),
- a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset,
- a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
- return {
- r: r,
- a0: a0,
- a1: a1,
- p0: [r * Math.cos(a0), r * Math.sin(a0)],
- p1: [r * Math.cos(a1), r * Math.sin(a1)]
- };
- }
-
- function equals(a, b) {
- return a.a0 == b.a0 && a.a1 == b.a1;
- }
-
- function arc(r, p, a) {
- return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p;
- }
-
- function curve(r0, p0, r1, p1) {
- return "Q 0,0 " + p1;
- }
-
- chord.radius = function(v) {
- if (!arguments.length) return radius;
- radius = d3.functor(v);
- return chord;
- };
-
- chord.source = function(v) {
- if (!arguments.length) return source;
- source = d3.functor(v);
- return chord;
- };
-
- chord.target = function(v) {
- if (!arguments.length) return target;
- target = d3.functor(v);
- return chord;
- };
-
- chord.startAngle = function(v) {
- if (!arguments.length) return startAngle;
- startAngle = d3.functor(v);
- return chord;
- };
-
- chord.endAngle = function(v) {
- if (!arguments.length) return endAngle;
- endAngle = d3.functor(v);
- return chord;
- };
-
- return chord;
-};
-
-function d3_svg_chordSource(d) {
- return d.source;
-}
-
-function d3_svg_chordTarget(d) {
- return d.target;
-}
-
-function d3_svg_chordRadius(d) {
- return d.radius;
-}
-
-function d3_svg_chordStartAngle(d) {
- return d.startAngle;
-}
-
-function d3_svg_chordEndAngle(d) {
- return d.endAngle;
-}
-d3.svg.diagonal = function() {
- var source = d3_svg_chordSource,
- target = d3_svg_chordTarget,
- projection = d3_svg_diagonalProjection;
-
- function diagonal(d, i) {
- var p0 = source.call(this, d, i),
- p3 = target.call(this, d, i),
- m = (p0.y + p3.y) / 2,
- p = [p0, {x: p0.x, y: m}, {x: p3.x, y: m}, p3];
- p = p.map(projection);
- return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
- }
-
- diagonal.source = function(x) {
- if (!arguments.length) return source;
- source = d3.functor(x);
- return diagonal;
- };
-
- diagonal.target = function(x) {
- if (!arguments.length) return target;
- target = d3.functor(x);
- return diagonal;
- };
-
- diagonal.projection = function(x) {
- if (!arguments.length) return projection;
- projection = x;
- return diagonal;
- };
-
- return diagonal;
-};
-
-function d3_svg_diagonalProjection(d) {
- return [d.x, d.y];
-}
-d3.svg.diagonal.radial = function() {
- var diagonal = d3.svg.diagonal(),
- projection = d3_svg_diagonalProjection,
- projection_ = diagonal.projection;
-
- diagonal.projection = function(x) {
- return arguments.length
- ? projection_(d3_svg_diagonalRadialProjection(projection = x))
- : projection;
- };
-
- return diagonal;
-};
-
-function d3_svg_diagonalRadialProjection(projection) {
- return function() {
- var d = projection.apply(this, arguments),
- r = d[0],
- a = d[1] + d3_svg_arcOffset;
- return [r * Math.cos(a), r * Math.sin(a)];
- };
-}
-d3.svg.mouse = function(container) {
- return d3_svg_mousePoint(container, d3.event);
-};
-
-// https://bugs.webkit.org/show_bug.cgi?id=44083
-var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
-
-function d3_svg_mousePoint(container, e) {
- var point = (container.ownerSVGElement || container).createSVGPoint();
- if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) {
- var svg = d3.select(document.body)
- .append("svg")
- .style("position", "absolute")
- .style("top", 0)
- .style("left", 0);
- var ctm = svg[0][0].getScreenCTM();
- d3_mouse_bug44083 = !(ctm.f || ctm.e);
- svg.remove();
- }
- if (d3_mouse_bug44083) {
- point.x = e.pageX;
- point.y = e.pageY;
- } else {
- point.x = e.clientX;
- point.y = e.clientY;
- }
- point = point.matrixTransform(container.getScreenCTM().inverse());
- return [point.x, point.y];
-};
-d3.svg.touches = function(container, touches) {
- if (arguments.length < 2) touches = d3.event.touches;
-
- return touches ? d3_array(touches).map(function(touch) {
- var point = d3_svg_mousePoint(container, touch);
- point.identifier = touch.identifier;
- return point;
- }) : [];
-};
-d3.svg.symbol = function() {
- var type = d3_svg_symbolType,
- size = d3_svg_symbolSize;
-
- function symbol(d, i) {
- return (d3_svg_symbols[type.call(this, d, i)]
- || d3_svg_symbols.circle)
- (size.call(this, d, i));
- }
-
- symbol.type = function(x) {
- if (!arguments.length) return type;
- type = d3.functor(x);
- return symbol;
- };
-
- // size of symbol in square pixels
- symbol.size = function(x) {
- if (!arguments.length) return size;
- size = d3.functor(x);
- return symbol;
- };
-
- return symbol;
-};
-
-function d3_svg_symbolSize() {
- return 64;
-}
-
-function d3_svg_symbolType() {
- return "circle";
-}
-
-// TODO cross-diagonal?
-var d3_svg_symbols = {
- "circle": function(size) {
- var r = Math.sqrt(size / Math.PI);
- return "M0," + r
- + "A" + r + "," + r + " 0 1,1 0," + (-r)
- + "A" + r + "," + r + " 0 1,1 0," + r
- + "Z";
- },
- "cross": function(size) {
- var r = Math.sqrt(size / 5) / 2;
- return "M" + -3 * r + "," + -r
- + "H" + -r
- + "V" + -3 * r
- + "H" + r
- + "V" + -r
- + "H" + 3 * r
- + "V" + r
- + "H" + r
- + "V" + 3 * r
- + "H" + -r
- + "V" + r
- + "H" + -3 * r
- + "Z";
- },
- "diamond": function(size) {
- var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)),
- rx = ry * d3_svg_symbolTan30;
- return "M0," + -ry
- + "L" + rx + ",0"
- + " 0," + ry
- + " " + -rx + ",0"
- + "Z";
- },
- "square": function(size) {
- var r = Math.sqrt(size) / 2;
- return "M" + -r + "," + -r
- + "L" + r + "," + -r
- + " " + r + "," + r
- + " " + -r + "," + r
- + "Z";
- },
- "triangle-down": function(size) {
- var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
- ry = rx * d3_svg_symbolSqrt3 / 2;
- return "M0," + ry
- + "L" + rx +"," + -ry
- + " " + -rx + "," + -ry
- + "Z";
- },
- "triangle-up": function(size) {
- var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
- ry = rx * d3_svg_symbolSqrt3 / 2;
- return "M0," + -ry
- + "L" + rx +"," + ry
- + " " + -rx + "," + ry
- + "Z";
- }
-};
-
-d3.svg.symbolTypes = d3.keys(d3_svg_symbols);
-
-var d3_svg_symbolSqrt3 = Math.sqrt(3),
- d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
-d3.svg.axis = function() {
- var scale = d3.scale.linear(),
- orient = "bottom",
- tickMajorSize = 6,
- tickMinorSize = 6,
- tickEndSize = 6,
- tickPadding = 3,
- tickArguments_ = [10],
- tickFormat_,
- tickSubdivide = 0;
-
- function axis(selection) {
- selection.each(function(d, i, j) {
- var g = d3.select(this);
-
- // If selection is a transition, create subtransitions.
- var transition = selection.delay ? function(o) {
- var id = d3_transitionInheritId;
- try {
- d3_transitionInheritId = selection.id;
- return o.transition()
- .delay(selection[j][i].delay)
- .duration(selection[j][i].duration)
- .ease(selection.ease());
- } finally {
- d3_transitionInheritId = id;
- }
- } : Object;
-
- // Ticks, or domain values for ordinal scales.
- var ticks = scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain(),
- tickFormat = tickFormat_ == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String) : tickFormat_;
-
- // Minor ticks.
- var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide),
- subtick = g.selectAll(".minor").data(subticks, String),
- subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6),
- subtickExit = transition(subtick.exit()).style("opacity", 1e-6).remove(),
- subtickUpdate = transition(subtick).style("opacity", 1);
-
- // Major ticks.
- var tick = g.selectAll("g").data(ticks, String),
- tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6),
- tickExit = transition(tick.exit()).style("opacity", 1e-6).remove(),
- tickUpdate = transition(tick).style("opacity", 1),
- tickTransform;
-
- // Domain.
- var range = d3_scaleRange(scale),
- path = g.selectAll(".domain").data([0]),
- pathEnter = path.enter().append("path").attr("class", "domain"),
- pathUpdate = transition(path);
-
- // Stash a snapshot of the new scale, and retrieve the old snapshot.
- var scale1 = scale.copy(),
- scale0 = this.__chart__ || scale1;
- this.__chart__ = scale1;
-
- tickEnter.append("line").attr("class", "tick");
- tickEnter.append("text");
- tickUpdate.select("text").text(tickFormat);
-
- switch (orient) {
- case "bottom": {
- tickTransform = d3_svg_axisX;
- subtickEnter.attr("y2", tickMinorSize);
- subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);
- tickEnter.select("line").attr("y2", tickMajorSize);
- tickEnter.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding);
- tickUpdate.select("line").attr("x2", 0).attr("y2", tickMajorSize);
- tickUpdate.select("text").attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding).attr("dy", ".71em").attr("text-anchor", "middle");
- pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
- break;
- }
- case "top": {
- tickTransform = d3_svg_axisX;
- subtickEnter.attr("y2", -tickMinorSize);
- subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);
- tickEnter.select("line").attr("y2", -tickMajorSize);
- tickEnter.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
- tickUpdate.select("line").attr("x2", 0).attr("y2", -tickMajorSize);
- tickUpdate.select("text").attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("dy", "0em").attr("text-anchor", "middle");
- pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
- break;
- }
- case "left": {
- tickTransform = d3_svg_axisY;
- subtickEnter.attr("x2", -tickMinorSize);
- subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);
- tickEnter.select("line").attr("x2", -tickMajorSize);
- tickEnter.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
- tickUpdate.select("line").attr("x2", -tickMajorSize).attr("y2", 0);
- tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "end");
- pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
- break;
- }
- case "right": {
- tickTransform = d3_svg_axisY;
- subtickEnter.attr("x2", tickMinorSize);
- subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);
- tickEnter.select("line").attr("x2", tickMajorSize);
- tickEnter.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding);
- tickUpdate.select("line").attr("x2", tickMajorSize).attr("y2", 0);
- tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "start");
- pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
- break;
- }
- }
-
- // For quantitative scales:
- // - enter new ticks from the old scale
- // - exit old ticks to the new scale
- if (scale.ticks) {
- tickEnter.call(tickTransform, scale0);
- tickUpdate.call(tickTransform, scale1);
- tickExit.call(tickTransform, scale1);
- subtickEnter.call(tickTransform, scale0);
- subtickUpdate.call(tickTransform, scale1);
- subtickExit.call(tickTransform, scale1);
- }
-
- // For ordinal scales:
- // - any entering ticks are undefined in the old scale
- // - any exiting ticks are undefined in the new scale
- // Therefore, we only need to transition updating ticks.
- else {
- var dx = scale1.rangeBand() / 2, x = function(d) { return scale1(d) + dx; };
- tickEnter.call(tickTransform, x);
- tickUpdate.call(tickTransform, x);
- }
- });
- }
-
- axis.scale = function(x) {
- if (!arguments.length) return scale;
- scale = x;
- return axis;
- };
-
- axis.orient = function(x) {
- if (!arguments.length) return orient;
- orient = x;
- return axis;
- };
-
- axis.ticks = function() {
- if (!arguments.length) return tickArguments_;
- tickArguments_ = arguments;
- return axis;
- };
-
- axis.tickFormat = function(x) {
- if (!arguments.length) return tickFormat_;
- tickFormat_ = x;
- return axis;
- };
-
- axis.tickSize = function(x, y, z) {
- if (!arguments.length) return tickMajorSize;
- var n = arguments.length - 1;
- tickMajorSize = +x;
- tickMinorSize = n > 1 ? +y : tickMajorSize;
- tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
- return axis;
- };
-
- axis.tickPadding = function(x) {
- if (!arguments.length) return tickPadding;
- tickPadding = +x;
- return axis;
- };
-
- axis.tickSubdivide = function(x) {
- if (!arguments.length) return tickSubdivide;
- tickSubdivide = +x;
- return axis;
- };
-
- return axis;
-};
-
-function d3_svg_axisX(selection, x) {
- selection.attr("transform", function(d) { return "translate(" + x(d) + ",0)"; });
-}
-
-function d3_svg_axisY(selection, y) {
- selection.attr("transform", function(d) { return "translate(0," + y(d) + ")"; });
-}
-
-function d3_svg_axisSubdivide(scale, ticks, m) {
- subticks = [];
- if (m && ticks.length > 1) {
- var extent = d3_scaleExtent(scale.domain()),
- subticks,
- i = -1,
- n = ticks.length,
- d = (ticks[1] - ticks[0]) / ++m,
- j,
- v;
- while (++i < n) {
- for (j = m; --j > 0;) {
- if ((v = +ticks[i] - j * d) >= extent[0]) {
- subticks.push(v);
- }
- }
- }
- for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1];) {
- subticks.push(v);
- }
- }
- return subticks;
-}
-d3.svg.brush = function() {
- var event = d3.dispatch("brushstart", "brush", "brushend"),
- x, // x-scale, optional
- y, // y-scale, optional
- extent = [[0, 0], [0, 0]]; // [x0, y0], [x1, y1]
-
- function brush(g) {
- var resizes = x && y ? ["n", "e", "s", "w", "nw", "ne", "se", "sw"]
- : x ? ["e", "w"]
- : y ? ["n", "s"]
- : [];
-
- g.each(function() {
- var g = d3.select(this).on("mousedown.brush", down),
- bg = g.selectAll(".background").data([,]),
- fg = g.selectAll(".extent").data([,]),
- tz = g.selectAll(".resize").data(resizes, String),
- e;
-
- // An invisible, mouseable area for starting a new brush.
- bg.enter().append("rect")
- .attr("class", "background")
- .style("visibility", "hidden")
- .style("pointer-events", "all")
- .style("cursor", "crosshair");
-
- // The visible brush extent; style this as you like!
- fg.enter().append("rect")
- .attr("class", "extent")
- .style("cursor", "move");
-
- // More invisible rects for resizing the extent.
- tz.enter().append("rect")
- .attr("class", function(d) { return "resize " + d; })
- .attr("width", 6)
- .attr("height", 6)
- .style("visibility", "hidden")
- .style("pointer-events", brush.empty() ? "none" : "all")
- .style("cursor", function(d) { return d3_svg_brushCursor[d]; });
-
- // Remove any superfluous resizers.
- tz.exit().remove();
-
- // Initialize the background to fill the defined range.
- // If the range isn't defined, you can post-process.
- if (x) {
- e = d3_scaleRange(x);
- bg.attr("x", e[0]).attr("width", e[1] - e[0]);
- d3_svg_brushRedrawX(g, extent);
- }
- if (y) {
- e = d3_scaleRange(y);
- bg.attr("y", e[0]).attr("height", e[1] - e[0]);
- d3_svg_brushRedrawY(g, extent);
- }
- });
- }
-
- function down() {
- var target = d3.select(d3.event.target);
-
- // Store some global state for the duration of the brush gesture.
- d3_svg_brush = brush;
- d3_svg_brushTarget = this;
- d3_svg_brushExtent = extent;
- d3_svg_brushOffset = d3.svg.mouse(d3_svg_brushTarget);
-
- // If the extent was clicked on, drag rather than brush;
- // store the offset between the mouse and extent origin instead.
- if (d3_svg_brushDrag = target.classed("extent")) {
- d3_svg_brushOffset[0] = extent[0][0] - d3_svg_brushOffset[0];
- d3_svg_brushOffset[1] = extent[0][1] - d3_svg_brushOffset[1];
- }
-
- // If a resizer was clicked on, record which side is to be resized.
- // Also, set the offset to the opposite side.
- else if (target.classed("resize")) {
- d3_svg_brushResize = d3.event.target.__data__;
- d3_svg_brushOffset[0] = extent[+/w$/.test(d3_svg_brushResize)][0];
- d3_svg_brushOffset[1] = extent[+/^n/.test(d3_svg_brushResize)][1];
- }
-
- // If the ALT key is down when starting a brush, the center is at the mouse.
- else if (d3.event.altKey) {
- d3_svg_brushCenter = d3_svg_brushOffset.slice();
- }
-
- // Restrict which dimensions are resized.
- d3_svg_brushX = !/^(n|s)$/.test(d3_svg_brushResize) && x;
- d3_svg_brushY = !/^(e|w)$/.test(d3_svg_brushResize) && y;
-
- // Notify listeners.
- d3_svg_brushDispatch = dispatcher(this, arguments);
- d3_svg_brushDispatch("brushstart");
- d3_svg_brushMove();
- d3_eventCancel();
- }
-
- function dispatcher(that, argumentz) {
- return function(type) {
- var e = d3.event;
- try {
- d3.event = {type: type, target: brush};
- event[type].apply(that, argumentz);
- } finally {
- d3.event = e;
- }
- };
- }
-
- brush.x = function(z) {
- if (!arguments.length) return x;
- x = z;
- return brush;
- };
-
- brush.y = function(z) {
- if (!arguments.length) return y;
- y = z;
- return brush;
- };
-
- brush.extent = function(z) {
- var x0, x1, y0, y1, t;
-
- // Invert the pixel extent to data-space.
- if (!arguments.length) {
- if (x) {
- x0 = extent[0][0], x1 = extent[1][0];
- if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
- if (x1 < x0) t = x0, x0 = x1, x1 = t;
- }
- if (y) {
- y0 = extent[0][1], y1 = extent[1][1];
- if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
- if (y1 < y0) t = y0, y0 = y1, y1 = t;
- }
- return x && y ? [[x0, y0], [x1, y1]] : x ? [x0, x1] : y && [y0, y1];
- }
-
- // Scale the data-space extent to pixels.
- if (x) {
- x0 = z[0], x1 = z[1];
- if (y) x0 = x0[0], x1 = x1[0];
- if (x.invert) x0 = x(x0), x1 = x(x1);
- if (x1 < x0) t = x0, x0 = x1, x1 = t;
- extent[0][0] = x0, extent[1][0] = x1;
- }
- if (y) {
- y0 = z[0], y1 = z[1];
- if (x) y0 = y0[1], y1 = y1[1];
- if (y.invert) y0 = y(y0), y1 = y(y1);
- if (y1 < y0) t = y0, y0 = y1, y1 = t;
- extent[0][1] = y0, extent[1][1] = y1;
- }
-
- return brush;
- };
-
- brush.clear = function() {
- extent[0][0] =
- extent[0][1] =
- extent[1][0] =
- extent[1][1] = 0;
- return brush;
- };
-
- brush.empty = function() {
- return (x && extent[0][0] === extent[1][0])
- || (y && extent[0][1] === extent[1][1]);
- };
-
- d3.select(window)
- .on("mousemove.brush", d3_svg_brushMove)
- .on("mouseup.brush", d3_svg_brushUp)
- .on("keydown.brush", d3_svg_brushKeydown)
- .on("keyup.brush", d3_svg_brushKeyup);
-
- return d3.rebind(brush, event, "on");
-};
-
-var d3_svg_brush,
- d3_svg_brushDispatch,
- d3_svg_brushTarget,
- d3_svg_brushX,
- d3_svg_brushY,
- d3_svg_brushExtent,
- d3_svg_brushDrag,
- d3_svg_brushResize,
- d3_svg_brushCenter,
- d3_svg_brushOffset;
-
-function d3_svg_brushRedrawX(g, extent) {
- g.select(".extent").attr("x", extent[0][0]);
- g.selectAll(".n,.s,.w,.nw,.sw").attr("x", extent[0][0] - 2);
- g.selectAll(".e,.ne,.se").attr("x", extent[1][0] - 3);
- g.selectAll(".extent,.n,.s").attr("width", extent[1][0] - extent[0][0]);
-}
-
-function d3_svg_brushRedrawY(g, extent) {
- g.select(".extent").attr("y", extent[0][1]);
- g.selectAll(".n,.e,.w,.nw,.ne").attr("y", extent[0][1] - 3);
- g.selectAll(".s,.se,.sw").attr("y", extent[1][1] - 4);
- g.selectAll(".extent,.e,.w").attr("height", extent[1][1] - extent[0][1]);
-}
-
-function d3_svg_brushKeydown() {
- if (d3.event.keyCode == 32 && d3_svg_brushTarget && !d3_svg_brushDrag) {
- d3_svg_brushCenter = null;
- d3_svg_brushOffset[0] -= d3_svg_brushExtent[1][0];
- d3_svg_brushOffset[1] -= d3_svg_brushExtent[1][1];
- d3_svg_brushDrag = 2;
- d3_eventCancel();
- }
-}
-
-function d3_svg_brushKeyup() {
- if (d3.event.keyCode == 32 && d3_svg_brushDrag == 2) {
- d3_svg_brushOffset[0] += d3_svg_brushExtent[1][0];
- d3_svg_brushOffset[1] += d3_svg_brushExtent[1][1];
- d3_svg_brushDrag = 0;
- d3_eventCancel();
- }
-}
-
-function d3_svg_brushMove() {
- if (d3_svg_brushOffset) {
- var mouse = d3.svg.mouse(d3_svg_brushTarget),
- g = d3.select(d3_svg_brushTarget);
-
- if (!d3_svg_brushDrag) {
-
- // If needed, determine the center from the current extent.
- if (d3.event.altKey) {
- if (!d3_svg_brushCenter) {
- d3_svg_brushCenter = [
- (d3_svg_brushExtent[0][0] + d3_svg_brushExtent[1][0]) / 2,
- (d3_svg_brushExtent[0][1] + d3_svg_brushExtent[1][1]) / 2
- ];
- }
-
- // Update the offset, for when the ALT key is released.
- d3_svg_brushOffset[0] = d3_svg_brushExtent[+(mouse[0] < d3_svg_brushCenter[0])][0];
- d3_svg_brushOffset[1] = d3_svg_brushExtent[+(mouse[1] < d3_svg_brushCenter[1])][1];
- }
-
- // When the ALT key is released, we clear the center.
- else d3_svg_brushCenter = null;
- }
-
- // Update the brush extent for each dimension.
- if (d3_svg_brushX) {
- d3_svg_brushMove1(mouse, d3_svg_brushX, 0);
- d3_svg_brushRedrawX(g, d3_svg_brushExtent);
- }
- if (d3_svg_brushY) {
- d3_svg_brushMove1(mouse, d3_svg_brushY, 1);
- d3_svg_brushRedrawY(g, d3_svg_brushExtent);
- }
-
- // Notify listeners.
- d3_svg_brushDispatch("brush");
- }
-}
-
-function d3_svg_brushMove1(mouse, scale, i) {
- var range = d3_scaleRange(scale),
- r0 = range[0],
- r1 = range[1],
- offset = d3_svg_brushOffset[i],
- size = d3_svg_brushExtent[1][i] - d3_svg_brushExtent[0][i],
- min,
- max;
-
- // When dragging, reduce the range by the extent size and offset.
- if (d3_svg_brushDrag) {
- r0 -= offset;
- r1 -= size + offset;
- }
-
- // Clamp the mouse so that the extent fits within the range extent.
- min = Math.max(r0, Math.min(r1, mouse[i]));
-
- // Compute the new extent bounds.
- if (d3_svg_brushDrag) {
- max = (min += offset) + size;
- } else {
-
- // If the ALT key is pressed, then preserve the center of the extent.
- if (d3_svg_brushCenter) offset = Math.max(r0, Math.min(r1, 2 * d3_svg_brushCenter[i] - min));
-
- // Compute the min and max of the offset and mouse.
- if (offset < min) {
- max = min;
- min = offset;
- } else {
- max = offset;
- }
- }
-
- // Update the stored bounds.
- d3_svg_brushExtent[0][i] = min;
- d3_svg_brushExtent[1][i] = max;
-}
-
-function d3_svg_brushUp() {
- if (d3_svg_brushOffset) {
- d3_svg_brushMove();
- d3.select(d3_svg_brushTarget).selectAll(".resize").style("pointer-events", d3_svg_brush.empty() ? "none" : "all");
- d3_svg_brushDispatch("brushend");
- d3_svg_brush =
- d3_svg_brushDispatch =
- d3_svg_brushTarget =
- d3_svg_brushX =
- d3_svg_brushY =
- d3_svg_brushExtent =
- d3_svg_brushDrag =
- d3_svg_brushResize =
- d3_svg_brushCenter =
- d3_svg_brushOffset = null;
- d3_eventCancel();
- }
-}
-
-var d3_svg_brushCursor = {
- n: "ns-resize",
- e: "ew-resize",
- s: "ns-resize",
- w: "ew-resize",
- nw: "nwse-resize",
- ne: "nesw-resize",
- se: "nwse-resize",
- sw: "nesw-resize"
-};
-d3.behavior = {};
-// TODO Track touch points by identifier.
-
-d3.behavior.drag = function() {
- var event = d3.dispatch("drag", "dragstart", "dragend"),
- origin = null;
-
- function drag() {
- this
- .on("mousedown.drag", mousedown)
- .on("touchstart.drag", mousedown);
-
- d3.select(window)
- .on("mousemove.drag", d3_behavior_dragMove)
- .on("touchmove.drag", d3_behavior_dragMove)
- .on("mouseup.drag", d3_behavior_dragUp, true)
- .on("touchend.drag", d3_behavior_dragUp, true)
- .on("click.drag", d3_behavior_dragClick, true);
- }
-
- // snapshot the local context for subsequent dispatch
- function start() {
- d3_behavior_dragEvent = event;
- d3_behavior_dragEventTarget = d3.event.target;
- d3_behavior_dragTarget = this;
- d3_behavior_dragArguments = arguments;
- d3_behavior_dragOrigin = d3_behavior_dragPoint();
- if (origin) {
- d3_behavior_dragOffset = origin.apply(d3_behavior_dragTarget, d3_behavior_dragArguments);
- d3_behavior_dragOffset = [d3_behavior_dragOffset.x - d3_behavior_dragOrigin[0], d3_behavior_dragOffset.y - d3_behavior_dragOrigin[1]];
- } else {
- d3_behavior_dragOffset = [0, 0];
- }
- d3_behavior_dragMoved = 0;
- }
-
- function mousedown() {
- start.apply(this, arguments);
- d3_behavior_dragDispatch("dragstart");
- }
-
- drag.origin = function(x) {
- if (!arguments.length) return origin;
- origin = x;
- return drag;
- };
-
- return d3.rebind(drag, event, "on");
-};
-
-var d3_behavior_dragEvent,
- d3_behavior_dragEventTarget,
- d3_behavior_dragTarget,
- d3_behavior_dragArguments,
- d3_behavior_dragOffset,
- d3_behavior_dragOrigin,
- d3_behavior_dragMoved;
-
-function d3_behavior_dragDispatch(type) {
- var p = d3_behavior_dragPoint(),
- o = d3.event,
- e = d3.event = {type: type};
-
- if (p) {
- e.x = p[0] + d3_behavior_dragOffset[0];
- e.y = p[1] + d3_behavior_dragOffset[1];
- e.dx = p[0] - d3_behavior_dragOrigin[0];
- e.dy = p[1] - d3_behavior_dragOrigin[1];
- d3_behavior_dragMoved |= e.dx | e.dy;
- d3_behavior_dragOrigin = p;
- }
-
- try {
- d3_behavior_dragEvent[type].apply(d3_behavior_dragTarget, d3_behavior_dragArguments);
- } finally {
- d3.event = o;
- }
-
- o.stopPropagation();
- o.preventDefault();
-}
-
-function d3_behavior_dragPoint() {
- var p = d3_behavior_dragTarget.parentNode,
- t = d3.event.changedTouches;
- return p && (t
- ? d3.svg.touches(p, t)[0]
- : d3.svg.mouse(p));
-}
-
-function d3_behavior_dragMove() {
- if (!d3_behavior_dragTarget) return;
- var parent = d3_behavior_dragTarget.parentNode;
-
- // O NOES! The drag element was removed from the DOM.
- if (!parent) return d3_behavior_dragUp();
-
- d3_behavior_dragDispatch("drag");
- d3_eventCancel();
-}
-
-function d3_behavior_dragUp() {
- if (!d3_behavior_dragTarget) return;
- d3_behavior_dragDispatch("dragend");
-
- // If the node was moved, prevent the mouseup from propagating.
- // Also prevent the subsequent click from propagating (e.g., for anchors).
- if (d3_behavior_dragMoved) {
- d3_eventCancel();
- d3_behavior_dragMoved = d3.event.target === d3_behavior_dragEventTarget;
- }
-
- d3_behavior_dragEvent =
- d3_behavior_dragEventTarget =
- d3_behavior_dragTarget =
- d3_behavior_dragArguments =
- d3_behavior_dragOffset =
- d3_behavior_dragOrigin = null;
-}
-
-function d3_behavior_dragClick() {
- if (d3_behavior_dragMoved) {
- d3_eventCancel();
- d3_behavior_dragMoved = 0;
- }
-}
-// TODO unbind zoom behavior?
-d3.behavior.zoom = function() {
- var xyz = [0, 0, 0],
- event = d3.dispatch("zoom"),
- extent = d3_behavior_zoomInfiniteExtent;
-
- function zoom() {
- this
- .on("mousedown.zoom", mousedown)
- .on("mousewheel.zoom", mousewheel)
- .on("DOMMouseScroll.zoom", mousewheel)
- .on("dblclick.zoom", dblclick)
- .on("touchstart.zoom", touchstart);
-
- d3.select(window)
- .on("mousemove.zoom", d3_behavior_zoomMousemove)
- .on("mouseup.zoom", d3_behavior_zoomMouseup)
- .on("touchmove.zoom", d3_behavior_zoomTouchmove)
- .on("touchend.zoom", d3_behavior_zoomTouchup)
- .on("click.zoom", d3_behavior_zoomClick, true);
- }
-
- // snapshot the local context for subsequent dispatch
- function start() {
- d3_behavior_zoomXyz = xyz;
- d3_behavior_zoomExtent = extent;
- d3_behavior_zoomDispatch = event.zoom;
- d3_behavior_zoomEventTarget = d3.event.target;
- d3_behavior_zoomTarget = this;
- d3_behavior_zoomArguments = arguments;
- }
-
- function mousedown() {
- start.apply(this, arguments);
- d3_behavior_zoomPanning = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget));
- d3_behavior_zoomMoved = 0;
- d3.event.preventDefault();
- window.focus();
- }
-
- // store starting mouse location
- function mousewheel() {
- start.apply(this, arguments);
- if (!d3_behavior_zoomZooming) d3_behavior_zoomZooming = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget));
- d3_behavior_zoomTo(d3_behavior_zoomDelta() + xyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomZooming);
- }
-
- function dblclick() {
- start.apply(this, arguments);
- var mouse = d3.svg.mouse(d3_behavior_zoomTarget);
- d3_behavior_zoomTo(d3.event.shiftKey ? Math.ceil(xyz[2] - 1) : Math.floor(xyz[2] + 1), mouse, d3_behavior_zoomLocation(mouse));
- }
-
- // doubletap detection
- function touchstart() {
- start.apply(this, arguments);
- var touches = d3_behavior_zoomTouchup(),
- touch,
- now = Date.now();
- if ((touches.length === 1) && (now - d3_behavior_zoomLast < 300)) {
- d3_behavior_zoomTo(1 + Math.floor(xyz[2]), touch = touches[0], d3_behavior_zoomLocations[touch.identifier]);
- }
- d3_behavior_zoomLast = now;
- }
-
- zoom.extent = function(x) {
- if (!arguments.length) return extent;
- extent = x == null ? d3_behavior_zoomInfiniteExtent : x;
- return zoom;
- };
-
- return d3.rebind(zoom, event, "on");
-};
-
-var d3_behavior_zoomDiv,
- d3_behavior_zoomPanning,
- d3_behavior_zoomZooming,
- d3_behavior_zoomLocations = {}, // identifier -> location
- d3_behavior_zoomLast = 0,
- d3_behavior_zoomXyz,
- d3_behavior_zoomExtent,
- d3_behavior_zoomDispatch,
- d3_behavior_zoomEventTarget,
- d3_behavior_zoomTarget,
- d3_behavior_zoomArguments,
- d3_behavior_zoomMoved;
-
-function d3_behavior_zoomLocation(point) {
- return [
- point[0] - d3_behavior_zoomXyz[0],
- point[1] - d3_behavior_zoomXyz[1],
- d3_behavior_zoomXyz[2]
- ];
-}
-
-// detect the pixels that would be scrolled by this wheel event
-function d3_behavior_zoomDelta() {
-
- // mousewheel events are totally broken!
- // https://bugs.webkit.org/show_bug.cgi?id=40441
- // not only that, but Chrome and Safari differ in re. to acceleration!
- if (!d3_behavior_zoomDiv) {
- d3_behavior_zoomDiv = d3.select("body").append("div")
- .style("visibility", "hidden")
- .style("top", 0)
- .style("height", 0)
- .style("width", 0)
- .style("overflow-y", "scroll")
- .append("div")
- .style("height", "2000px")
- .node().parentNode;
- }
-
- var e = d3.event, delta;
- try {
- d3_behavior_zoomDiv.scrollTop = 1000;
- d3_behavior_zoomDiv.dispatchEvent(e);
- delta = 1000 - d3_behavior_zoomDiv.scrollTop;
- } catch (error) {
- delta = e.wheelDelta || (-e.detail * 5);
- }
-
- return delta * .005;
-}
-
-// Note: Since we don't rotate, it's possible for the touches to become
-// slightly detached from their original positions. Thus, we recompute the
-// touch points on touchend as well as touchstart!
-function d3_behavior_zoomTouchup() {
- var touches = d3.svg.touches(d3_behavior_zoomTarget),
- i = -1,
- n = touches.length,
- touch;
- while (++i < n) d3_behavior_zoomLocations[(touch = touches[i]).identifier] = d3_behavior_zoomLocation(touch);
- return touches;
-}
-
-function d3_behavior_zoomTouchmove() {
- var touches = d3.svg.touches(d3_behavior_zoomTarget);
- switch (touches.length) {
-
- // single-touch pan
- case 1: {
- var touch = touches[0];
- d3_behavior_zoomTo(d3_behavior_zoomXyz[2], touch, d3_behavior_zoomLocations[touch.identifier]);
- break;
- }
-
- // double-touch pan + zoom
- case 2: {
- var p0 = touches[0],
- p1 = touches[1],
- p2 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2],
- l0 = d3_behavior_zoomLocations[p0.identifier],
- l1 = d3_behavior_zoomLocations[p1.identifier],
- l2 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2, l0[2]];
- d3_behavior_zoomTo(Math.log(d3.event.scale) / Math.LN2 + l0[2], p2, l2);
- break;
- }
- }
-}
-
-function d3_behavior_zoomMousemove() {
- d3_behavior_zoomZooming = null;
- if (d3_behavior_zoomPanning) {
- d3_behavior_zoomMoved = 1;
- d3_behavior_zoomTo(d3_behavior_zoomXyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomPanning);
- }
-}
-
-function d3_behavior_zoomMouseup() {
- if (d3_behavior_zoomPanning) {
- if (d3_behavior_zoomMoved) {
- d3_eventCancel();
- d3_behavior_zoomMoved = d3_behavior_zoomEventTarget === d3.event.target;
- }
-
- d3_behavior_zoomXyz =
- d3_behavior_zoomExtent =
- d3_behavior_zoomDispatch =
- d3_behavior_zoomEventTarget =
- d3_behavior_zoomTarget =
- d3_behavior_zoomArguments =
- d3_behavior_zoomPanning = null;
- }
-}
-
-function d3_behavior_zoomClick() {
- if (d3_behavior_zoomMoved) {
- d3_eventCancel();
- d3_behavior_zoomMoved = 0;
- }
-}
-
-function d3_behavior_zoomTo(z, x0, x1) {
- z = d3_behavior_zoomExtentClamp(z, 2);
- var j = Math.pow(2, d3_behavior_zoomXyz[2]),
- k = Math.pow(2, z),
- K = Math.pow(2, (d3_behavior_zoomXyz[2] = z) - x1[2]),
- x_ = d3_behavior_zoomXyz[0],
- y_ = d3_behavior_zoomXyz[1],
- x = d3_behavior_zoomXyz[0] = d3_behavior_zoomExtentClamp((x0[0] - x1[0] * K), 0, k),
- y = d3_behavior_zoomXyz[1] = d3_behavior_zoomExtentClamp((x0[1] - x1[1] * K), 1, k),
- o = d3.event; // Events can be reentrant (e.g., focus).
-
- d3.event = {
- scale: k,
- translate: [x, y],
- transform: function(sx, sy) {
- if (sx) transform(sx, x_, x);
- if (sy) transform(sy, y_, y);
- }
- };
-
- function transform(scale, a, b) {
- scale.domain(scale.range().map(function(v) { return scale.invert(((v - b) * j) / k + a); }));
- }
-
- try {
- d3_behavior_zoomDispatch.apply(d3_behavior_zoomTarget, d3_behavior_zoomArguments);
- } finally {
- d3.event = o;
- }
-
- o.preventDefault();
-}
-
-var d3_behavior_zoomInfiniteExtent = [
- [-Infinity, Infinity],
- [-Infinity, Infinity],
- [-Infinity, Infinity]
-];
-
-function d3_behavior_zoomExtentClamp(x, i, k) {
- var range = d3_behavior_zoomExtent[i],
- r0 = range[0],
- r1 = range[1];
- return arguments.length === 3
- ? Math.max(r1 * (r1 === Infinity ? -Infinity : 1 / k - 1),
- Math.min(r0 === -Infinity ? Infinity : r0, x / k)) * k
- : Math.max(r0, Math.min(r1, x));
-}
-})();
diff --git a/visualize/static/d3.layout.js b/visualize/static/d3.layout.js
deleted file mode 100644
index d93fbe5c..00000000
--- a/visualize/static/d3.layout.js
+++ /dev/null
@@ -1,1881 +0,0 @@
-(function(){d3.layout = {};
-// Implements hierarchical edge bundling using Holten's algorithm. For each
-// input link, a path is computed that travels through the tree, up the parent
-// hierarchy to the least common ancestor, and then back down to the destination
-// node. Each path is simply an array of nodes.
-d3.layout.bundle = function() {
- return function(links) {
- var paths = [],
- i = -1,
- n = links.length;
- while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
- return paths;
- };
-};
-
-function d3_layout_bundlePath(link) {
- var start = link.source,
- end = link.target,
- lca = d3_layout_bundleLeastCommonAncestor(start, end),
- points = [start];
- while (start !== lca) {
- start = start.parent;
- points.push(start);
- }
- var k = points.length;
- while (end !== lca) {
- points.splice(k, 0, end);
- end = end.parent;
- }
- return points;
-}
-
-function d3_layout_bundleAncestors(node) {
- var ancestors = [],
- parent = node.parent;
- while (parent != null) {
- ancestors.push(node);
- node = parent;
- parent = parent.parent;
- }
- ancestors.push(node);
- return ancestors;
-}
-
-function d3_layout_bundleLeastCommonAncestor(a, b) {
- if (a === b) return a;
- var aNodes = d3_layout_bundleAncestors(a),
- bNodes = d3_layout_bundleAncestors(b),
- aNode = aNodes.pop(),
- bNode = bNodes.pop(),
- sharedNode = null;
- while (aNode === bNode) {
- sharedNode = aNode;
- aNode = aNodes.pop();
- bNode = bNodes.pop();
- }
- return sharedNode;
-}
-d3.layout.chord = function() {
- var chord = {},
- chords,
- groups,
- matrix,
- n,
- padding = 0,
- sortGroups,
- sortSubgroups,
- sortChords;
-
- function relayout() {
- var subgroups = {},
- groupSums = [],
- groupIndex = d3.range(n),
- subgroupIndex = [],
- k,
- x,
- x0,
- i,
- j;
-
- chords = [];
- groups = [];
-
- // Compute the sum.
- k = 0, i = -1; while (++i < n) {
- x = 0, j = -1; while (++j < n) {
- x += matrix[i][j];
- }
- groupSums.push(x);
- subgroupIndex.push(d3.range(n));
- k += x;
- }
-
- // Sort groups…
- if (sortGroups) {
- groupIndex.sort(function(a, b) {
- return sortGroups(groupSums[a], groupSums[b]);
- });
- }
-
- // Sort subgroups…
- if (sortSubgroups) {
- subgroupIndex.forEach(function(d, i) {
- d.sort(function(a, b) {
- return sortSubgroups(matrix[i][a], matrix[i][b]);
- });
- });
- }
-
- // Convert the sum to scaling factor for [0, 2pi].
- // TODO Allow start and end angle to be specified.
- // TODO Allow padding to be specified as percentage?
- k = (2 * Math.PI - padding * n) / k;
-
- // Compute the start and end angle for each group and subgroup.
- // Note: Opera has a bug reordering object literal properties!
- x = 0, i = -1; while (++i < n) {
- x0 = x, j = -1; while (++j < n) {
- var di = groupIndex[i],
- dj = subgroupIndex[di][j],
- v = matrix[di][dj],
- a0 = x,
- a1 = x += v * k;
- subgroups[di + "-" + dj] = {
- index: di,
- subindex: dj,
- startAngle: a0,
- endAngle: a1,
- value: v
- };
- }
- groups.push({
- index: di,
- startAngle: x0,
- endAngle: x,
- value: (x - x0) / k
- });
- x += padding;
- }
-
- // Generate chords for each (non-empty) subgroup-subgroup link.
- i = -1; while (++i < n) {
- j = i - 1; while (++j < n) {
- var source = subgroups[i + "-" + j],
- target = subgroups[j + "-" + i];
- if (source.value || target.value) {
- chords.push(source.value < target.value
- ? {source: target, target: source}
- : {source: source, target: target});
- }
- }
- }
-
- if (sortChords) resort();
- }
-
- function resort() {
- chords.sort(function(a, b) {
- return sortChords(
- (a.source.value + a.target.value) / 2,
- (b.source.value + b.target.value) / 2);
- });
- }
-
- chord.matrix = function(x) {
- if (!arguments.length) return matrix;
- n = (matrix = x) && matrix.length;
- chords = groups = null;
- return chord;
- };
-
- chord.padding = function(x) {
- if (!arguments.length) return padding;
- padding = x;
- chords = groups = null;
- return chord;
- };
-
- chord.sortGroups = function(x) {
- if (!arguments.length) return sortGroups;
- sortGroups = x;
- chords = groups = null;
- return chord;
- };
-
- chord.sortSubgroups = function(x) {
- if (!arguments.length) return sortSubgroups;
- sortSubgroups = x;
- chords = null;
- return chord;
- };
-
- chord.sortChords = function(x) {
- if (!arguments.length) return sortChords;
- sortChords = x;
- if (chords) resort();
- return chord;
- };
-
- chord.chords = function() {
- if (!chords) relayout();
- return chords;
- };
-
- chord.groups = function() {
- if (!groups) relayout();
- return groups;
- };
-
- return chord;
-};
-// A rudimentary force layout using Gauss-Seidel.
-d3.layout.force = function() {
- var force = {},
- event = d3.dispatch("tick"),
- size = [1, 1],
- drag,
- alpha,
- friction = .9,
- linkDistance = d3_layout_forceLinkDistance,
- linkStrength = d3_layout_forceLinkStrength,
- charge = -30,
- gravity = .1,
- theta = .8,
- interval,
- nodes = [],
- links = [],
- distances,
- strengths,
- charges;
-
- function repulse(node) {
- return function(quad, x1, y1, x2, y2) {
- if (quad.point !== node) {
- var dx = quad.cx - node.x,
- dy = quad.cy - node.y,
- dn = 1 / Math.sqrt(dx * dx + dy * dy);
-
- /* Barnes-Hut criterion. */
- if ((x2 - x1) * dn < theta) {
- var k = quad.charge * dn * dn;
- node.px -= dx * k;
- node.py -= dy * k;
- return true;
- }
-
- if (quad.point && isFinite(dn)) {
- var k = quad.pointCharge * dn * dn;
- node.px -= dx * k;
- node.py -= dy * k;
- }
- }
- return !quad.charge;
- };
- }
-
- function tick() {
- var n = nodes.length,
- m = links.length,
- q,
- i, // current index
- o, // current object
- s, // current source
- t, // current target
- l, // current distance
- k, // current force
- x, // x-distance
- y; // y-distance
-
- // gauss-seidel relaxation for links
- for (i = 0; i < m; ++i) {
- o = links[i];
- s = o.source;
- t = o.target;
- x = t.x - s.x;
- y = t.y - s.y;
- if (l = (x * x + y * y)) {
- l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
- x *= l;
- y *= l;
- t.x -= x * (k = s.weight / (t.weight + s.weight));
- t.y -= y * k;
- s.x += x * (k = 1 - k);
- s.y += y * k;
- }
- }
-
- // apply gravity forces
- if (k = alpha * gravity) {
- x = size[0] / 2;
- y = size[1] / 2;
- i = -1; if (k) while (++i < n) {
- o = nodes[i];
- o.x += (x - o.x) * k;
- o.y += (y - o.y) * k;
- }
- }
-
- // compute quadtree center of mass and apply charge forces
- if (charge) {
- d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
- i = -1; while (++i < n) {
- if (!(o = nodes[i]).fixed) {
- q.visit(repulse(o));
- }
- }
- }
-
- // position verlet integration
- i = -1; while (++i < n) {
- o = nodes[i];
- if (o.fixed) {
- o.x = o.px;
- o.y = o.py;
- } else {
- o.x -= (o.px - (o.px = o.x)) * friction;
- o.y -= (o.py - (o.py = o.y)) * friction;
- }
- }
-
- event.tick({type: "tick", alpha: alpha});
-
- // simulated annealing, basically
- return (alpha *= .99) < .005;
- }
-
- force.nodes = function(x) {
- if (!arguments.length) return nodes;
- nodes = x;
- return force;
- };
-
- force.links = function(x) {
- if (!arguments.length) return links;
- links = x;
- return force;
- };
-
- force.size = function(x) {
- if (!arguments.length) return size;
- size = x;
- return force;
- };
-
- force.linkDistance = function(x) {
- if (!arguments.length) return linkDistance;
- linkDistance = d3.functor(x);
- return force;
- };
-
- // For backwards-compatibility.
- force.distance = force.linkDistance;
-
- force.linkStrength = function(x) {
- if (!arguments.length) return linkStrength;
- linkStrength = d3.functor(x);
- return force;
- };
-
- force.friction = function(x) {
- if (!arguments.length) return friction;
- friction = x;
- return force;
- };
-
- force.charge = function(x) {
- if (!arguments.length) return charge;
- charge = typeof x === "function" ? x : +x;
- return force;
- };
-
- force.gravity = function(x) {
- if (!arguments.length) return gravity;
- gravity = x;
- return force;
- };
-
- force.theta = function(x) {
- if (!arguments.length) return theta;
- theta = x;
- return force;
- };
-
- force.start = function() {
- var i,
- j,
- n = nodes.length,
- m = links.length,
- w = size[0],
- h = size[1],
- neighbors,
- o;
-
- for (i = 0; i < n; ++i) {
- (o = nodes[i]).index = i;
- o.weight = 0;
- }
-
- distances = [];
- strengths = [];
- for (i = 0; i < m; ++i) {
- o = links[i];
- if (typeof o.source == "number") o.source = nodes[o.source];
- if (typeof o.target == "number") o.target = nodes[o.target];
- distances[i] = linkDistance.call(this, o, i);
- strengths[i] = linkStrength.call(this, o, i);
- ++o.source.weight;
- ++o.target.weight;
- }
-
- for (i = 0; i < n; ++i) {
- o = nodes[i];
- if (isNaN(o.x)) o.x = position("x", w);
- if (isNaN(o.y)) o.y = position("y", h);
- if (isNaN(o.px)) o.px = o.x;
- if (isNaN(o.py)) o.py = o.y;
- }
-
- charges = [];
- if (typeof charge === "function") {
- for (i = 0; i < n; ++i) {
- charges[i] = +charge.call(this, nodes[i], i);
- }
- } else {
- for (i = 0; i < n; ++i) {
- charges[i] = charge;
- }
- }
-
- // initialize node position based on first neighbor
- function position(dimension, size) {
- var neighbors = neighbor(i),
- j = -1,
- m = neighbors.length,
- x;
- while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x;
- return Math.random() * size;
- }
-
- // initialize neighbors lazily
- function neighbor() {
- if (!neighbors) {
- neighbors = [];
- for (j = 0; j < n; ++j) {
- neighbors[j] = [];
- }
- for (j = 0; j < m; ++j) {
- var o = links[j];
- neighbors[o.source.index].push(o.target);
- neighbors[o.target.index].push(o.source);
- }
- }
- return neighbors[i];
- }
-
- return force.resume();
- };
-
- force.resume = function() {
- alpha = .1;
- d3.timer(tick);
- return force;
- };
-
- force.stop = function() {
- alpha = 0;
- return force;
- };
-
- // use `node.call(force.drag)` to make nodes draggable
- force.drag = function() {
- if (!drag) drag = d3.behavior.drag()
- .origin(Object)
- .on("dragstart", dragstart)
- .on("drag", d3_layout_forceDrag)
- .on("dragend", d3_layout_forceDragEnd);
-
- this.on("mouseover.force", d3_layout_forceDragOver)
- .on("mouseout.force", d3_layout_forceDragOut)
- .call(drag);
- };
-
- function dragstart(d) {
- d3_layout_forceDragOver(d3_layout_forceDragNode = d);
- d3_layout_forceDragForce = force;
- }
-
- return d3.rebind(force, event, "on");
-};
-
-var d3_layout_forceDragForce,
- d3_layout_forceDragNode;
-
-function d3_layout_forceDragOver(d) {
- d.fixed |= 2;
-}
-
-function d3_layout_forceDragOut(d) {
- if (d !== d3_layout_forceDragNode) d.fixed &= 1;
-}
-
-function d3_layout_forceDragEnd() {
- d3_layout_forceDrag();
- d3_layout_forceDragNode.fixed &= 1;
- d3_layout_forceDragForce = d3_layout_forceDragNode = null;
-}
-
-function d3_layout_forceDrag() {
- d3_layout_forceDragNode.px = d3.event.x;
- d3_layout_forceDragNode.py = d3.event.y;
- d3_layout_forceDragForce.resume(); // restart annealing
-}
-
-function d3_layout_forceAccumulate(quad, alpha, charges) {
- var cx = 0,
- cy = 0;
- quad.charge = 0;
- if (!quad.leaf) {
- var nodes = quad.nodes,
- n = nodes.length,
- i = -1,
- c;
- while (++i < n) {
- c = nodes[i];
- if (c == null) continue;
- d3_layout_forceAccumulate(c, alpha, charges);
- quad.charge += c.charge;
- cx += c.charge * c.cx;
- cy += c.charge * c.cy;
- }
- }
- if (quad.point) {
- // jitter internal nodes that are coincident
- if (!quad.leaf) {
- quad.point.x += Math.random() - .5;
- quad.point.y += Math.random() - .5;
- }
- var k = alpha * charges[quad.point.index];
- quad.charge += quad.pointCharge = k;
- cx += k * quad.point.x;
- cy += k * quad.point.y;
- }
- quad.cx = cx / quad.charge;
- quad.cy = cy / quad.charge;
-}
-
-function d3_layout_forceLinkDistance(link) {
- return 20;
-}
-
-function d3_layout_forceLinkStrength(link) {
- return 1;
-}
-d3.layout.partition = function() {
- var hierarchy = d3.layout.hierarchy(),
- size = [1, 1]; // width, height
-
- function position(node, x, dx, dy) {
- var children = node.children;
- node.x = x;
- node.y = node.depth * dy;
- node.dx = dx;
- node.dy = dy;
- if (children && (n = children.length)) {
- var i = -1,
- n,
- c,
- d;
- dx = node.value ? dx / node.value : 0;
- while (++i < n) {
- position(c = children[i], x, d = c.value * dx, dy);
- x += d;
- }
- }
- }
-
- function depth(node) {
- var children = node.children,
- d = 0;
- if (children && (n = children.length)) {
- var i = -1,
- n;
- while (++i < n) d = Math.max(d, depth(children[i]));
- }
- return 1 + d;
- }
-
- function partition(d, i) {
- var nodes = hierarchy.call(this, d, i);
- position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
- return nodes;
- }
-
- partition.size = function(x) {
- if (!arguments.length) return size;
- size = x;
- return partition;
- };
-
- return d3_layout_hierarchyRebind(partition, hierarchy);
-};
-d3.layout.pie = function() {
- var value = Number,
- sort = d3_layout_pieSortByValue,
- startAngle = 0,
- endAngle = 2 * Math.PI;
-
- function pie(data, i) {
-
- // Compute the numeric values for each data element.
- var values = data.map(function(d, i) { return +value.call(pie, d, i); });
-
- // Compute the start angle.
- var a = +(typeof startAngle === "function"
- ? startAngle.apply(this, arguments)
- : startAngle);
-
- // Compute the angular scale factor: from value to radians.
- var k = ((typeof endAngle === "function"
- ? endAngle.apply(this, arguments)
- : endAngle) - startAngle)
- / d3.sum(values);
-
- // Optionally sort the data.
- var index = d3.range(data.length);
- if (sort != null) index.sort(sort === d3_layout_pieSortByValue
- ? function(i, j) { return values[j] - values[i]; }
- : function(i, j) { return sort(data[i], data[j]); });
-
- // Compute the arcs!
- // They are stored in the original data's order.
- var arcs = [];
- index.forEach(function(i) {
- arcs[i] = {
- data: data[i],
- value: d = values[i],
- startAngle: a,
- endAngle: a += d * k
- };
- });
- return arcs;
- }
-
- /**
- * Specifies the value function *x*, which returns a nonnegative numeric value
- * for each datum. The default value function is `Number`. The value function
- * is passed two arguments: the current datum and the current index.
- */
- pie.value = function(x) {
- if (!arguments.length) return value;
- value = x;
- return pie;
- };
-
- /**
- * Specifies a sort comparison operator *x*. The comparator is passed two data
- * elements from the data array, a and b; it returns a negative value if a is
- * less than b, a positive value if a is greater than b, and zero if a equals
- * b.
- */
- pie.sort = function(x) {
- if (!arguments.length) return sort;
- sort = x;
- return pie;
- };
-
- /**
- * Specifies the overall start angle of the pie chart. Defaults to 0. The
- * start angle can be specified either as a constant or as a function; in the
- * case of a function, it is evaluated once per array (as opposed to per
- * element).
- */
- pie.startAngle = function(x) {
- if (!arguments.length) return startAngle;
- startAngle = x;
- return pie;
- };
-
- /**
- * Specifies the overall end angle of the pie chart. Defaults to 2π. The
- * end angle can be specified either as a constant or as a function; in the
- * case of a function, it is evaluated once per array (as opposed to per
- * element).
- */
- pie.endAngle = function(x) {
- if (!arguments.length) return endAngle;
- endAngle = x;
- return pie;
- };
-
- return pie;
-};
-
-var d3_layout_pieSortByValue = {};
-// data is two-dimensional array of x,y; we populate y0
-d3.layout.stack = function() {
- var values = Object,
- order = d3_layout_stackOrders["default"],
- offset = d3_layout_stackOffsets["zero"],
- out = d3_layout_stackOut,
- x = d3_layout_stackX,
- y = d3_layout_stackY;
-
- function stack(data, index) {
-
- // Convert series to canonical two-dimensional representation.
- var series = data.map(function(d, i) {
- return values.call(stack, d, i);
- });
-
- // Convert each series to canonical [[x,y]] representation.
- var points = series.map(function(d, i) {
- return d.map(function(v, i) {
- return [x.call(stack, v, i), y.call(stack, v, i)];
- });
- });
-
- // Compute the order of series, and permute them.
- var orders = order.call(stack, points, index);
- series = d3.permute(series, orders);
- points = d3.permute(points, orders);
-
- // Compute the baseline…
- var offsets = offset.call(stack, points, index);
-
- // And propagate it to other series.
- var n = series.length,
- m = series[0].length,
- i,
- j,
- o;
- for (j = 0; j < m; ++j) {
- out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
- for (i = 1; i < n; ++i) {
- out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
- }
- }
-
- return data;
- }
-
- stack.values = function(x) {
- if (!arguments.length) return values;
- values = x;
- return stack;
- };
-
- stack.order = function(x) {
- if (!arguments.length) return order;
- order = typeof x === "function" ? x : d3_layout_stackOrders[x];
- return stack;
- };
-
- stack.offset = function(x) {
- if (!arguments.length) return offset;
- offset = typeof x === "function" ? x : d3_layout_stackOffsets[x];
- return stack;
- };
-
- stack.x = function(z) {
- if (!arguments.length) return x;
- x = z;
- return stack;
- };
-
- stack.y = function(z) {
- if (!arguments.length) return y;
- y = z;
- return stack;
- };
-
- stack.out = function(z) {
- if (!arguments.length) return out;
- out = z;
- return stack;
- };
-
- return stack;
-}
-
-function d3_layout_stackX(d) {
- return d.x;
-}
-
-function d3_layout_stackY(d) {
- return d.y;
-}
-
-function d3_layout_stackOut(d, y0, y) {
- d.y0 = y0;
- d.y = y;
-}
-
-var d3_layout_stackOrders = {
-
- "inside-out": function(data) {
- var n = data.length,
- i,
- j,
- max = data.map(d3_layout_stackMaxIndex),
- sums = data.map(d3_layout_stackReduceSum),
- index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }),
- top = 0,
- bottom = 0,
- tops = [],
- bottoms = [];
- for (i = 0; i < n; ++i) {
- j = index[i];
- if (top < bottom) {
- top += sums[j];
- tops.push(j);
- } else {
- bottom += sums[j];
- bottoms.push(j);
- }
- }
- return bottoms.reverse().concat(tops);
- },
-
- "reverse": function(data) {
- return d3.range(data.length).reverse();
- },
-
- "default": function(data) {
- return d3.range(data.length);
- }
-
-};
-
-var d3_layout_stackOffsets = {
-
- "silhouette": function(data) {
- var n = data.length,
- m = data[0].length,
- sums = [],
- max = 0,
- i,
- j,
- o,
- y0 = [];
- for (j = 0; j < m; ++j) {
- for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
- if (o > max) max = o;
- sums.push(o);
- }
- for (j = 0; j < m; ++j) {
- y0[j] = (max - sums[j]) / 2;
- }
- return y0;
- },
-
- "wiggle": function(data) {
- var n = data.length,
- x = data[0],
- m = x.length,
- max = 0,
- i,
- j,
- k,
- s1,
- s2,
- s3,
- dx,
- o,
- o0,
- y0 = [];
- y0[0] = o = o0 = 0;
- for (j = 1; j < m; ++j) {
- for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
- for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
- for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
- s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
- }
- s2 += s3 * data[i][j][1];
- }
- y0[j] = o -= s1 ? s2 / s1 * dx : 0;
- if (o < o0) o0 = o;
- }
- for (j = 0; j < m; ++j) y0[j] -= o0;
- return y0;
- },
-
- "expand": function(data) {
- var n = data.length,
- m = data[0].length,
- k = 1 / n,
- i,
- j,
- o,
- y0 = [];
- for (j = 0; j < m; ++j) {
- for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
- if (o) for (i = 0; i < n; i++) data[i][j][1] /= o;
- else for (i = 0; i < n; i++) data[i][j][1] = k;
- }
- for (j = 0; j < m; ++j) y0[j] = 0;
- return y0;
- },
-
- "zero": function(data) {
- var j = -1,
- m = data[0].length,
- y0 = [];
- while (++j < m) y0[j] = 0;
- return y0;
- }
-
-};
-
-function d3_layout_stackMaxIndex(array) {
- var i = 1,
- j = 0,
- v = array[0][1],
- k,
- n = array.length;
- for (; i < n; ++i) {
- if ((k = array[i][1]) > v) {
- j = i;
- v = k;
- }
- }
- return j;
-}
-
-function d3_layout_stackReduceSum(d) {
- return d.reduce(d3_layout_stackSum, 0);
-}
-
-function d3_layout_stackSum(p, d) {
- return p + d[1];
-}
-d3.layout.histogram = function() {
- var frequency = true,
- valuer = Number,
- ranger = d3_layout_histogramRange,
- binner = d3_layout_histogramBinSturges;
-
- function histogram(data, i) {
- var bins = [],
- values = data.map(valuer, this),
- range = ranger.call(this, values, i),
- thresholds = binner.call(this, range, values, i),
- bin,
- i = -1,
- n = values.length,
- m = thresholds.length - 1,
- k = frequency ? 1 : 1 / n,
- x;
-
- // Initialize the bins.
- while (++i < m) {
- bin = bins[i] = [];
- bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
- bin.y = 0;
- }
-
- // Fill the bins, ignoring values outside the range.
- i = -1; while(++i < n) {
- x = values[i];
- if ((x >= range[0]) && (x <= range[1])) {
- bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
- bin.y += k;
- bin.push(data[i]);
- }
- }
-
- return bins;
- }
-
- // Specifies how to extract a value from the associated data. The default
- // value function is `Number`, which is equivalent to the identity function.
- histogram.value = function(x) {
- if (!arguments.length) return valuer;
- valuer = x;
- return histogram;
- };
-
- // Specifies the range of the histogram. Values outside the specified range
- // will be ignored. The argument `x` may be specified either as a two-element
- // array representing the minimum and maximum value of the range, or as a
- // function that returns the range given the array of values and the current
- // index `i`. The default range is the extent (minimum and maximum) of the
- // values.
- histogram.range = function(x) {
- if (!arguments.length) return ranger;
- ranger = d3.functor(x);
- return histogram;
- };
-
- // Specifies how to bin values in the histogram. The argument `x` may be
- // specified as a number, in which case the range of values will be split
- // uniformly into the given number of bins. Or, `x` may be an array of
- // threshold values, defining the bins; the specified array must contain the
- // rightmost (upper) value, thus specifying n + 1 values for n bins. Or, `x`
- // may be a function which is evaluated, being passed the range, the array of
- // values, and the current index `i`, returning an array of thresholds. The
- // default bin function will divide the values into uniform bins using
- // Sturges' formula.
- histogram.bins = function(x) {
- if (!arguments.length) return binner;
- binner = typeof x === "number"
- ? function(range) { return d3_layout_histogramBinFixed(range, x); }
- : d3.functor(x);
- return histogram;
- };
-
- // Specifies whether the histogram's `y` value is a count (frequency) or a
- // probability (density). The default value is true.
- histogram.frequency = function(x) {
- if (!arguments.length) return frequency;
- frequency = !!x;
- return histogram;
- };
-
- return histogram;
-};
-
-function d3_layout_histogramBinSturges(range, values) {
- return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
-}
-
-function d3_layout_histogramBinFixed(range, n) {
- var x = -1,
- b = +range[0],
- m = (range[1] - b) / n,
- f = [];
- while (++x <= n) f[x] = m * x + b;
- return f;
-}
-
-function d3_layout_histogramRange(values) {
- return [d3.min(values), d3.max(values)];
-}
-d3.layout.hierarchy = function() {
- var sort = d3_layout_hierarchySort,
- children = d3_layout_hierarchyChildren,
- value = d3_layout_hierarchyValue;
-
- // Recursively compute the node depth and value.
- // Also converts the data representation into a standard hierarchy structure.
- function recurse(data, depth, nodes) {
- var childs = children.call(hierarchy, data, depth),
- node = d3_layout_hierarchyInline ? data : {data: data};
- node.depth = depth;
- nodes.push(node);
- if (childs && (n = childs.length)) {
- var i = -1,
- n,
- c = node.children = [],
- v = 0,
- j = depth + 1;
- while (++i < n) {
- d = recurse(childs[i], j, nodes);
- d.parent = node;
- c.push(d);
- v += d.value;
- }
- if (sort) c.sort(sort);
- if (value) node.value = v;
- } else if (value) {
- node.value = +value.call(hierarchy, data, depth) || 0;
- }
- return node;
- }
-
- // Recursively re-evaluates the node value.
- function revalue(node, depth) {
- var children = node.children,
- v = 0;
- if (children && (n = children.length)) {
- var i = -1,
- n,
- j = depth + 1;
- while (++i < n) v += revalue(children[i], j);
- } else if (value) {
- v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0;
- }
- if (value) node.value = v;
- return v;
- }
-
- function hierarchy(d) {
- var nodes = [];
- recurse(d, 0, nodes);
- return nodes;
- }
-
- hierarchy.sort = function(x) {
- if (!arguments.length) return sort;
- sort = x;
- return hierarchy;
- };
-
- hierarchy.children = function(x) {
- if (!arguments.length) return children;
- children = x;
- return hierarchy;
- };
-
- hierarchy.value = function(x) {
- if (!arguments.length) return value;
- value = x;
- return hierarchy;
- };
-
- // Re-evaluates the `value` property for the specified hierarchy.
- hierarchy.revalue = function(root) {
- revalue(root, 0);
- return root;
- };
-
- return hierarchy;
-};
-
-// A method assignment helper for hierarchy subclasses.
-function d3_layout_hierarchyRebind(object, hierarchy) {
- d3.rebind(object, hierarchy, "sort", "children", "value");
-
- // Add an alias for links, for convenience.
- object.links = d3_layout_hierarchyLinks;
-
- // If the new API is used, enabling inlining.
- object.nodes = function(d) {
- d3_layout_hierarchyInline = true;
- return (object.nodes = object)(d);
- };
-
- return object;
-}
-
-function d3_layout_hierarchyChildren(d) {
- return d.children;
-}
-
-function d3_layout_hierarchyValue(d) {
- return d.value;
-}
-
-function d3_layout_hierarchySort(a, b) {
- return b.value - a.value;
-}
-
-// Returns an array source+target objects for the specified nodes.
-function d3_layout_hierarchyLinks(nodes) {
- return d3.merge(nodes.map(function(parent) {
- return (parent.children || []).map(function(child) {
- return {source: parent, target: child};
- });
- }));
-}
-
-// For backwards-compatibility, don't enable inlining by default.
-var d3_layout_hierarchyInline = false;
-d3.layout.pack = function() {
- var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort),
- size = [1, 1];
-
- function pack(d, i) {
- var nodes = hierarchy.call(this, d, i),
- root = nodes[0];
-
- // Recursively compute the layout.
- root.x = 0;
- root.y = 0;
- d3_layout_packTree(root);
-
- // Scale the layout to fit the requested size.
- var w = size[0],
- h = size[1],
- k = 1 / Math.max(2 * root.r / w, 2 * root.r / h);
- d3_layout_packTransform(root, w / 2, h / 2, k);
-
- return nodes;
- }
-
- pack.size = function(x) {
- if (!arguments.length) return size;
- size = x;
- return pack;
- };
-
- return d3_layout_hierarchyRebind(pack, hierarchy);
-};
-
-function d3_layout_packSort(a, b) {
- return a.value - b.value;
-}
-
-function d3_layout_packInsert(a, b) {
- var c = a._pack_next;
- a._pack_next = b;
- b._pack_prev = a;
- b._pack_next = c;
- c._pack_prev = b;
-}
-
-function d3_layout_packSplice(a, b) {
- a._pack_next = b;
- b._pack_prev = a;
-}
-
-function d3_layout_packIntersects(a, b) {
- var dx = b.x - a.x,
- dy = b.y - a.y,
- dr = a.r + b.r;
- return dr * dr - dx * dx - dy * dy > .001; // within epsilon
-}
-
-function d3_layout_packCircle(nodes) {
- var xMin = Infinity,
- xMax = -Infinity,
- yMin = Infinity,
- yMax = -Infinity,
- n = nodes.length,
- a, b, c, j, k;
-
- function bound(node) {
- xMin = Math.min(node.x - node.r, xMin);
- xMax = Math.max(node.x + node.r, xMax);
- yMin = Math.min(node.y - node.r, yMin);
- yMax = Math.max(node.y + node.r, yMax);
- }
-
- // Create node links.
- nodes.forEach(d3_layout_packLink);
-
- // Create first node.
- a = nodes[0];
- a.x = -a.r;
- a.y = 0;
- bound(a);
-
- // Create second node.
- if (n > 1) {
- b = nodes[1];
- b.x = b.r;
- b.y = 0;
- bound(b);
-
- // Create third node and build chain.
- if (n > 2) {
- c = nodes[2];
- d3_layout_packPlace(a, b, c);
- bound(c);
- d3_layout_packInsert(a, c);
- a._pack_prev = c;
- d3_layout_packInsert(c, b);
- b = a._pack_next;
-
- // Now iterate through the rest.
- for (var i = 3; i < n; i++) {
- d3_layout_packPlace(a, b, c = nodes[i]);
-
- // Search for the closest intersection.
- var isect = 0, s1 = 1, s2 = 1;
- for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
- if (d3_layout_packIntersects(j, c)) {
- isect = 1;
- break;
- }
- }
- if (isect == 1) {
- for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
- if (d3_layout_packIntersects(k, c)) {
- break;
- }
- }
- }
-
- // Update node chain.
- if (isect) {
- if (s1 < s2 || (s1 == s2 && b.r < a.r)) d3_layout_packSplice(a, b = j);
- else d3_layout_packSplice(a = k, b);
- i--;
- } else {
- d3_layout_packInsert(a, c);
- b = c;
- bound(c);
- }
- }
- }
- }
-
- // Re-center the circles and return the encompassing radius.
- var cx = (xMin + xMax) / 2,
- cy = (yMin + yMax) / 2,
- cr = 0;
- for (var i = 0; i < n; i++) {
- var node = nodes[i];
- node.x -= cx;
- node.y -= cy;
- cr = Math.max(cr, node.r + Math.sqrt(node.x * node.x + node.y * node.y));
- }
-
- // Remove node links.
- nodes.forEach(d3_layout_packUnlink);
-
- return cr;
-}
-
-function d3_layout_packLink(node) {
- node._pack_next = node._pack_prev = node;
-}
-
-function d3_layout_packUnlink(node) {
- delete node._pack_next;
- delete node._pack_prev;
-}
-
-function d3_layout_packTree(node) {
- var children = node.children;
- if (children && children.length) {
- children.forEach(d3_layout_packTree);
- node.r = d3_layout_packCircle(children);
- } else {
- node.r = Math.sqrt(node.value);
- }
-}
-
-function d3_layout_packTransform(node, x, y, k) {
- var children = node.children;
- node.x = (x += k * node.x);
- node.y = (y += k * node.y);
- node.r *= k;
- if (children) {
- var i = -1, n = children.length;
- while (++i < n) d3_layout_packTransform(children[i], x, y, k);
- }
-}
-
-function d3_layout_packPlace(a, b, c) {
- var db = a.r + c.r,
- dx = b.x - a.x,
- dy = b.y - a.y;
- if (db && (dx || dy)) {
- var da = b.r + c.r,
- dc = Math.sqrt(dx * dx + dy * dy),
- cos = Math.max(-1, Math.min(1, (db * db + dc * dc - da * da) / (2 * db * dc))),
- theta = Math.acos(cos),
- x = cos * (db /= dc),
- y = Math.sin(theta) * db;
- c.x = a.x + x * dx + y * dy;
- c.y = a.y + x * dy - y * dx;
- } else {
- c.x = a.x + db;
- c.y = a.y;
- }
-}
-// Implements a hierarchical layout using the cluster (or dendogram) algorithm.
-d3.layout.cluster = function() {
- var hierarchy = d3.layout.hierarchy().sort(null).value(null),
- separation = d3_layout_treeSeparation,
- size = [1, 1]; // width, height
-
- function cluster(d, i) {
- var nodes = hierarchy.call(this, d, i),
- root = nodes[0],
- previousNode,
- x = 0,
- kx,
- ky;
-
- // First walk, computing the initial x & y values.
- d3_layout_treeVisitAfter(root, function(node) {
- var children = node.children;
- if (children && children.length) {
- node.x = d3_layout_clusterX(children);
- node.y = d3_layout_clusterY(children);
- } else {
- node.x = previousNode ? x += separation(node, previousNode) : 0;
- node.y = 0;
- previousNode = node;
- }
- });
-
- // Compute the left-most, right-most, and depth-most nodes for extents.
- var left = d3_layout_clusterLeft(root),
- right = d3_layout_clusterRight(root),
- x0 = left.x - separation(left, right) / 2,
- x1 = right.x + separation(right, left) / 2;
-
- // Second walk, normalizing x & y to the desired size.
- d3_layout_treeVisitAfter(root, function(node) {
- node.x = (node.x - x0) / (x1 - x0) * size[0];
- node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
- });
-
- return nodes;
- }
-
- cluster.separation = function(x) {
- if (!arguments.length) return separation;
- separation = x;
- return cluster;
- };
-
- cluster.size = function(x) {
- if (!arguments.length) return size;
- size = x;
- return cluster;
- };
-
- return d3_layout_hierarchyRebind(cluster, hierarchy);
-};
-
-function d3_layout_clusterY(children) {
- return 1 + d3.max(children, function(child) {
- return child.y;
- });
-}
-
-function d3_layout_clusterX(children) {
- return children.reduce(function(x, child) {
- return x + child.x;
- }, 0) / children.length;
-}
-
-function d3_layout_clusterLeft(node) {
- var children = node.children;
- return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
-}
-
-function d3_layout_clusterRight(node) {
- var children = node.children, n;
- return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
-}
-// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm
-d3.layout.tree = function() {
- var hierarchy = d3.layout.hierarchy().sort(null).value(null),
- separation = d3_layout_treeSeparation,
- size = [1, 1]; // width, height
-
- function tree(d, i) {
- var nodes = hierarchy.call(this, d, i),
- root = nodes[0];
-
- function firstWalk(node, previousSibling) {
- var children = node.children,
- layout = node._tree;
- if (children && (n = children.length)) {
- var n,
- firstChild = children[0],
- previousChild,
- ancestor = firstChild,
- child,
- i = -1;
- while (++i < n) {
- child = children[i];
- firstWalk(child, previousChild);
- ancestor = apportion(child, previousChild, ancestor);
- previousChild = child;
- }
- d3_layout_treeShift(node);
- var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim);
- if (previousSibling) {
- layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
- layout.mod = layout.prelim - midpoint;
- } else {
- layout.prelim = midpoint;
- }
- } else {
- if (previousSibling) {
- layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
- }
- }
- }
-
- function secondWalk(node, x) {
- node.x = node._tree.prelim + x;
- var children = node.children;
- if (children && (n = children.length)) {
- var i = -1,
- n;
- x += node._tree.mod;
- while (++i < n) {
- secondWalk(children[i], x);
- }
- }
- }
-
- function apportion(node, previousSibling, ancestor) {
- if (previousSibling) {
- var vip = node,
- vop = node,
- vim = previousSibling,
- vom = node.parent.children[0],
- sip = vip._tree.mod,
- sop = vop._tree.mod,
- sim = vim._tree.mod,
- som = vom._tree.mod,
- shift;
- while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
- vom = d3_layout_treeLeft(vom);
- vop = d3_layout_treeRight(vop);
- vop._tree.ancestor = node;
- shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip);
- if (shift > 0) {
- d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift);
- sip += shift;
- sop += shift;
- }
- sim += vim._tree.mod;
- sip += vip._tree.mod;
- som += vom._tree.mod;
- sop += vop._tree.mod;
- }
- if (vim && !d3_layout_treeRight(vop)) {
- vop._tree.thread = vim;
- vop._tree.mod += sim - sop;
- }
- if (vip && !d3_layout_treeLeft(vom)) {
- vom._tree.thread = vip;
- vom._tree.mod += sip - som;
- ancestor = node;
- }
- }
- return ancestor;
- }
-
- // Initialize temporary layout variables.
- d3_layout_treeVisitAfter(root, function(node, previousSibling) {
- node._tree = {
- ancestor: node,
- prelim: 0,
- mod: 0,
- change: 0,
- shift: 0,
- number: previousSibling ? previousSibling._tree.number + 1 : 0
- };
- });
-
- // Compute the layout using Buchheim et al.'s algorithm.
- firstWalk(root);
- secondWalk(root, -root._tree.prelim);
-
- // Compute the left-most, right-most, and depth-most nodes for extents.
- var left = d3_layout_treeSearch(root, d3_layout_treeLeftmost),
- right = d3_layout_treeSearch(root, d3_layout_treeRightmost),
- deep = d3_layout_treeSearch(root, d3_layout_treeDeepest),
- x0 = left.x - separation(left, right) / 2,
- x1 = right.x + separation(right, left) / 2,
- y1 = deep.depth || 1;
-
- // Clear temporary layout variables; transform x and y.
- d3_layout_treeVisitAfter(root, function(node) {
- node.x = (node.x - x0) / (x1 - x0) * size[0];
- node.y = node.depth / y1 * size[1];
- delete node._tree;
- });
-
- return nodes;
- }
-
- tree.separation = function(x) {
- if (!arguments.length) return separation;
- separation = x;
- return tree;
- };
-
- tree.size = function(x) {
- if (!arguments.length) return size;
- size = x;
- return tree;
- };
-
- return d3_layout_hierarchyRebind(tree, hierarchy);
-};
-
-function d3_layout_treeSeparation(a, b) {
- return a.parent == b.parent ? 1 : 2;
-}
-
-// function d3_layout_treeSeparationRadial(a, b) {
-// return (a.parent == b.parent ? 1 : 2) / a.depth;
-// }
-
-function d3_layout_treeLeft(node) {
- var children = node.children;
- return children && children.length ? children[0] : node._tree.thread;
-}
-
-function d3_layout_treeRight(node) {
- var children = node.children,
- n;
- return children && (n = children.length) ? children[n - 1] : node._tree.thread;
-}
-
-function d3_layout_treeSearch(node, compare) {
- var children = node.children;
- if (children && (n = children.length)) {
- var child,
- n,
- i = -1;
- while (++i < n) {
- if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
- node = child;
- }
- }
- }
- return node;
-}
-
-function d3_layout_treeRightmost(a, b) {
- return a.x - b.x;
-}
-
-function d3_layout_treeLeftmost(a, b) {
- return b.x - a.x;
-}
-
-function d3_layout_treeDeepest(a, b) {
- return a.depth - b.depth;
-}
-
-function d3_layout_treeVisitAfter(node, callback) {
- function visit(node, previousSibling) {
- var children = node.children;
- if (children && (n = children.length)) {
- var child,
- previousChild = null,
- i = -1,
- n;
- while (++i < n) {
- child = children[i];
- visit(child, previousChild);
- previousChild = child;
- }
- }
- callback(node, previousSibling);
- }
- visit(node, null);
-}
-
-function d3_layout_treeShift(node) {
- var shift = 0,
- change = 0,
- children = node.children,
- i = children.length,
- child;
- while (--i >= 0) {
- child = children[i]._tree;
- child.prelim += shift;
- child.mod += shift;
- shift += child.shift + (change += child.change);
- }
-}
-
-function d3_layout_treeMove(ancestor, node, shift) {
- ancestor = ancestor._tree;
- node = node._tree;
- var change = shift / (node.number - ancestor.number);
- ancestor.change += change;
- node.change -= change;
- node.shift += shift;
- node.prelim += shift;
- node.mod += shift;
-}
-
-function d3_layout_treeAncestor(vim, node, ancestor) {
- return vim._tree.ancestor.parent == node.parent
- ? vim._tree.ancestor
- : ancestor;
-}
-// Squarified Treemaps by Mark Bruls, Kees Huizing, and Jarke J. van Wijk
-// Modified to support a target aspect ratio by Jeff Heer
-d3.layout.treemap = function() {
- var hierarchy = d3.layout.hierarchy(),
- round = Math.round,
- size = [1, 1], // width, height
- padding = null,
- pad = d3_layout_treemapPadNull,
- sticky = false,
- stickies,
- ratio = 0.5 * (1 + Math.sqrt(5)); // golden ratio
-
- // Compute the area for each child based on value & scale.
- function scale(children, k) {
- var i = -1,
- n = children.length,
- child,
- area;
- while (++i < n) {
- area = (child = children[i]).value * (k < 0 ? 0 : k);
- child.area = isNaN(area) || area <= 0 ? 0 : area;
- }
- }
-
- // Recursively arranges the specified node's children into squarified rows.
- function squarify(node) {
- var children = node.children;
- if (children && children.length) {
- var rect = pad(node),
- row = [],
- remaining = children.slice(), // copy-on-write
- child,
- best = Infinity, // the best row score so far
- score, // the current row score
- u = Math.min(rect.dx, rect.dy), // initial orientation
- n;
- scale(remaining, rect.dx * rect.dy / node.value);
- row.area = 0;
- while ((n = remaining.length) > 0) {
- row.push(child = remaining[n - 1]);
- row.area += child.area;
- if ((score = worst(row, u)) <= best) { // continue with this orientation
- remaining.pop();
- best = score;
- } else { // abort, and try a different orientation
- row.area -= row.pop().area;
- position(row, u, rect, false);
- u = Math.min(rect.dx, rect.dy);
- row.length = row.area = 0;
- best = Infinity;
- }
- }
- if (row.length) {
- position(row, u, rect, true);
- row.length = row.area = 0;
- }
- children.forEach(squarify);
- }
- }
-
- // Recursively resizes the specified node's children into existing rows.
- // Preserves the existing layout!
- function stickify(node) {
- var children = node.children;
- if (children && children.length) {
- var rect = pad(node),
- remaining = children.slice(), // copy-on-write
- child,
- row = [];
- scale(remaining, rect.dx * rect.dy / node.value);
- row.area = 0;
- while (child = remaining.pop()) {
- row.push(child);
- row.area += child.area;
- if (child.z != null) {
- position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
- row.length = row.area = 0;
- }
- }
- children.forEach(stickify);
- }
- }
-
- // Computes the score for the specified row, as the worst aspect ratio.
- function worst(row, u) {
- var s = row.area,
- r,
- rmax = 0,
- rmin = Infinity,
- i = -1,
- n = row.length;
- while (++i < n) {
- if (!(r = row[i].area)) continue;
- if (r < rmin) rmin = r;
- if (r > rmax) rmax = r;
- }
- s *= s;
- u *= u;
- return s
- ? Math.max((u * rmax * ratio) / s, s / (u * rmin * ratio))
- : Infinity;
- }
-
- // Positions the specified row of nodes. Modifies `rect`.
- function position(row, u, rect, flush) {
- var i = -1,
- n = row.length,
- x = rect.x,
- y = rect.y,
- v = u ? round(row.area / u) : 0,
- o;
- if (u == rect.dx) { // horizontal subdivision
- if (flush || v > rect.dy) v = v ? rect.dy : 0; // over+underflow
- while (++i < n) {
- o = row[i];
- o.x = x;
- o.y = y;
- o.dy = v;
- x += o.dx = v ? round(o.area / v) : 0;
- }
- o.z = true;
- o.dx += rect.x + rect.dx - x; // rounding error
- rect.y += v;
- rect.dy -= v;
- } else { // vertical subdivision
- if (flush || v > rect.dx) v = v ? rect.dx : 0; // over+underflow
- while (++i < n) {
- o = row[i];
- o.x = x;
- o.y = y;
- o.dx = v;
- y += o.dy = v ? round(o.area / v) : 0;
- }
- o.z = false;
- o.dy += rect.y + rect.dy - y; // rounding error
- rect.x += v;
- rect.dx -= v;
- }
- }
-
- function treemap(d) {
- var nodes = stickies || hierarchy(d),
- root = nodes[0];
- root.x = 0;
- root.y = 0;
- root.dx = size[0];
- root.dy = size[1];
- if (stickies) hierarchy.revalue(root);
- scale([root], root.dx * root.dy / root.value);
- (stickies ? stickify : squarify)(root);
- if (sticky) stickies = nodes;
- return nodes;
- }
-
- treemap.size = function(x) {
- if (!arguments.length) return size;
- size = x;
- return treemap;
- };
-
- treemap.padding = function(x) {
- if (!arguments.length) return padding;
-
- function padFunction(node) {
- var p = x.call(treemap, node, node.depth);
- return p == null
- ? d3_layout_treemapPadNull(node)
- : d3_layout_treemapPad(node, typeof p === "number" ? [p, p, p, p] : p);
- }
-
- function padConstant(node) {
- return d3_layout_treemapPad(node, x);
- }
-
- var type;
- pad = (padding = x) == null ? d3_layout_treemapPadNull
- : (type = typeof x) === "function" ? padFunction
- : type === "number" ? (x = [x, x, x, x], padConstant)
- : padConstant;
- return treemap;
- };
-
- treemap.round = function(x) {
- if (!arguments.length) return round != Number;
- round = x ? Math.round : Number;
- return treemap;
- };
-
- treemap.sticky = function(x) {
- if (!arguments.length) return sticky;
- sticky = x;
- stickies = null;
- return treemap;
- };
-
- treemap.ratio = function(x) {
- if (!arguments.length) return ratio;
- ratio = x;
- return treemap;
- };
-
- return d3_layout_hierarchyRebind(treemap, hierarchy);
-};
-
-function d3_layout_treemapPadNull(node) {
- return {x: node.x, y: node.y, dx: node.dx, dy: node.dy};
-}
-
-function d3_layout_treemapPad(node, padding) {
- var x = node.x + padding[3],
- y = node.y + padding[0],
- dx = node.dx - padding[1] - padding[3],
- dy = node.dy - padding[0] - padding[2];
- if (dx < 0) { x += dx / 2; dx = 0; }
- if (dy < 0) { y += dy / 2; dy = 0; }
- return {x: x, y: y, dx: dx, dy: dy};
-}
-})();
diff --git a/visualize/static/d3.layout.min.js b/visualize/static/d3.layout.min.js
deleted file mode 100644
index 689cc706..00000000
--- a/visualize/static/d3.layout.min.js
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/visualize/static/d3.v2.js b/visualize/static/d3.v2.js
new file mode 100644
index 00000000..c1b6caf2
--- /dev/null
+++ b/visualize/static/d3.v2.js
@@ -0,0 +1,9342 @@
+(function(){if (!Date.now) Date.now = function() {
+ return +new Date;
+};
+try {
+ document.createElement("div").style.setProperty("opacity", 0, "");
+} catch (error) {
+ var d3_style_prototype = CSSStyleDeclaration.prototype,
+ d3_style_setProperty = d3_style_prototype.setProperty;
+ d3_style_prototype.setProperty = function(name, value, priority) {
+ d3_style_setProperty.call(this, name, value + "", priority);
+ };
+}
+d3 = {version: "2.8.1"}; // semver
+function d3_class(ctor, properties) {
+ try {
+ for (var key in properties) {
+ Object.defineProperty(ctor.prototype, key, {
+ value: properties[key],
+ enumerable: false
+ });
+ }
+ } catch (e) {
+ ctor.prototype = properties;
+ }
+}
+var d3_array = d3_arraySlice; // conversion for NodeLists
+
+function d3_arrayCopy(pseudoarray) {
+ var i = -1, n = pseudoarray.length, array = [];
+ while (++i < n) array.push(pseudoarray[i]);
+ return array;
+}
+
+function d3_arraySlice(pseudoarray) {
+ return Array.prototype.slice.call(pseudoarray);
+}
+
+try {
+ d3_array(document.documentElement.childNodes)[0].nodeType;
+} catch(e) {
+ d3_array = d3_arrayCopy;
+}
+
+var d3_arraySubclass = [].__proto__?
+
+// Until ECMAScript supports array subclassing, prototype injection works well.
+function(array, prototype) {
+ array.__proto__ = prototype;
+}:
+
+// And if your browser doesn't support __proto__, we'll use direct extension.
+function(array, prototype) {
+ for (var property in prototype) array[property] = prototype[property];
+};
+d3.map = function(object) {
+ var map = new d3_Map;
+ for (var key in object) map.set(key, object[key]);
+ return map;
+};
+
+function d3_Map() {}
+
+d3_class(d3_Map, {
+ has: function(key) {
+ return d3_map_prefix + key in this;
+ },
+ get: function(key) {
+ return this[d3_map_prefix + key];
+ },
+ set: function(key, value) {
+ return this[d3_map_prefix + key] = value;
+ },
+ remove: function(key) {
+ key = d3_map_prefix + key;
+ return key in this && delete this[key];
+ },
+ keys: function() {
+ var keys = [];
+ this.forEach(function(key) { keys.push(key); });
+ return keys;
+ },
+ values: function() {
+ var values = [];
+ this.forEach(function(key, value) { values.push(value); });
+ return values;
+ },
+ entries: function() {
+ var entries = [];
+ this.forEach(function(key, value) { entries.push({key: key, value: value}); });
+ return entries;
+ },
+ forEach: function(f) {
+ for (var key in this) {
+ if (key.charCodeAt(0) === d3_map_prefixCode) {
+ f.call(this, key.substring(1), this[key]);
+ }
+ }
+ }
+});
+
+var d3_map_prefix = "\0", // prevent collision with built-ins
+ d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
+function d3_this() {
+ return this;
+}
+d3.functor = function(v) {
+ return typeof v === "function" ? v : function() { return v; };
+};
+// Copies a variable number of methods from source to target.
+d3.rebind = function(target, source) {
+ var i = 1, n = arguments.length, method;
+ while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
+ return target;
+};
+
+// Method is assumed to be a standard D3 getter-setter:
+// If passed with no arguments, gets the value.
+// If passed with arguments, sets the value and returns the target.
+function d3_rebind(target, source, method) {
+ return function() {
+ var value = method.apply(source, arguments);
+ return arguments.length ? target : value;
+ };
+}
+d3.ascending = function(a, b) {
+ return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+};
+d3.descending = function(a, b) {
+ return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
+};
+d3.mean = function(array, f) {
+ var n = array.length,
+ a,
+ m = 0,
+ i = -1,
+ j = 0;
+ if (arguments.length === 1) {
+ while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
+ } else {
+ while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
+ }
+ return j ? m : undefined;
+};
+d3.median = function(array, f) {
+ if (arguments.length > 1) array = array.map(f);
+ array = array.filter(d3_number);
+ return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
+};
+d3.min = function(array, f) {
+ var i = -1,
+ n = array.length,
+ a,
+ b;
+ if (arguments.length === 1) {
+ while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = array[i]) != null && a > b) a = b;
+ } else {
+ while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
+ }
+ return a;
+};
+d3.max = function(array, f) {
+ var i = -1,
+ n = array.length,
+ a,
+ b;
+ if (arguments.length === 1) {
+ while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = array[i]) != null && b > a) a = b;
+ } else {
+ while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
+ }
+ return a;
+};
+d3.extent = function(array, f) {
+ var i = -1,
+ n = array.length,
+ a,
+ b,
+ c;
+ if (arguments.length === 1) {
+ while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;
+ while (++i < n) if ((b = array[i]) != null) {
+ if (a > b) a = b;
+ if (c < b) c = b;
+ }
+ } else {
+ while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
+ if (a > b) a = b;
+ if (c < b) c = b;
+ }
+ }
+ return [a, c];
+};
+d3.random = {
+ normal: function(mean, deviation) {
+ if (arguments.length < 2) deviation = 1;
+ if (arguments.length < 1) mean = 0;
+ return function() {
+ var x, y, r;
+ do {
+ x = Math.random() * 2 - 1;
+ y = Math.random() * 2 - 1;
+ r = x * x + y * y;
+ } while (!r || r > 1);
+ return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r);
+ };
+ }
+};
+function d3_number(x) {
+ return x != null && !isNaN(x);
+}
+d3.sum = function(array, f) {
+ var s = 0,
+ n = array.length,
+ a,
+ i = -1;
+
+ if (arguments.length === 1) {
+ while (++i < n) if (!isNaN(a = +array[i])) s += a;
+ } else {
+ while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
+ }
+
+ return s;
+};
+// R-7 per <http://en.wikipedia.org/wiki/Quantile>
+d3.quantile = function(values, p) {
+ var H = (values.length - 1) * p + 1,
+ h = Math.floor(H),
+ v = values[h - 1],
+ e = H - h;
+ return e ? v + e * (values[h] - v) : v;
+};
+d3.transpose = function(matrix) {
+ return d3.zip.apply(d3, matrix);
+};
+d3.zip = function() {
+ if (!(n = arguments.length)) return [];
+ for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) {
+ for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) {
+ zip[j] = arguments[j][i];
+ }
+ }
+ return zips;
+};
+
+function d3_zipLength(d) {
+ return d.length;
+}
+d3.bisector = function(f) {
+ return {
+ left: function(a, x, lo, hi) {
+ if (arguments.length < 3) lo = 0;
+ if (arguments.length < 4) hi = a.length;
+ while (lo < hi) {
+ var mid = lo + hi >> 1;
+ if (f.call(a, a[mid], mid) < x) lo = mid + 1;
+ else hi = mid;
+ }
+ return lo;
+ },
+ right: function(a, x, lo, hi) {
+ if (arguments.length < 3) lo = 0;
+ if (arguments.length < 4) hi = a.length;
+ while (lo < hi) {
+ var mid = lo + hi >> 1;
+ if (x < f.call(a, a[mid], mid)) hi = mid;
+ else lo = mid + 1;
+ }
+ return lo;
+ }
+ };
+};
+
+var d3_bisector = d3.bisector(function(d) { return d; });
+d3.bisectLeft = d3_bisector.left;
+d3.bisect = d3.bisectRight = d3_bisector.right;
+d3.first = function(array, f) {
+ var i = 0,
+ n = array.length,
+ a = array[0],
+ b;
+ if (arguments.length === 1) f = d3.ascending;
+ while (++i < n) {
+ if (f.call(array, a, b = array[i]) > 0) {
+ a = b;
+ }
+ }
+ return a;
+};
+d3.last = function(array, f) {
+ var i = 0,
+ n = array.length,
+ a = array[0],
+ b;
+ if (arguments.length === 1) f = d3.ascending;
+ while (++i < n) {
+ if (f.call(array, a, b = array[i]) <= 0) {
+ a = b;
+ }
+ }
+ return a;
+};
+d3.nest = function() {
+ var nest = {},
+ keys = [],
+ sortKeys = [],
+ sortValues,
+ rollup;
+
+ function map(array, depth) {
+ if (depth >= keys.length) return rollup
+ ? rollup.call(nest, array) : (sortValues
+ ? array.sort(sortValues)
+ : array);
+
+ var i = -1,
+ n = array.length,
+ key = keys[depth++],
+ keyValue,
+ object,
+ valuesByKey = new d3_Map,
+ values,
+ o = {};
+
+ while (++i < n) {
+ if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
+ values.push(object);
+ } else {
+ valuesByKey.set(keyValue, [object]);
+ }
+ }
+
+ valuesByKey.forEach(function(keyValue) {
+ o[keyValue] = map(valuesByKey.get(keyValue), depth);
+ });
+
+ return o;
+ }
+
+ function entries(map, depth) {
+ if (depth >= keys.length) return map;
+
+ var a = [],
+ sortKey = sortKeys[depth++],
+ key;
+
+ for (key in map) {
+ a.push({key: key, values: entries(map[key], depth)});
+ }
+
+ if (sortKey) a.sort(function(a, b) {
+ return sortKey(a.key, b.key);
+ });
+
+ return a;
+ }
+
+ nest.map = function(array) {
+ return map(array, 0);
+ };
+
+ nest.entries = function(array) {
+ return entries(map(array, 0), 0);
+ };
+
+ nest.key = function(d) {
+ keys.push(d);
+ return nest;
+ };
+
+ // Specifies the order for the most-recently specified key.
+ // Note: only applies to entries. Map keys are unordered!
+ nest.sortKeys = function(order) {
+ sortKeys[keys.length - 1] = order;
+ return nest;
+ };
+
+ // Specifies the order for leaf values.
+ // Applies to both maps and entries array.
+ nest.sortValues = function(order) {
+ sortValues = order;
+ return nest;
+ };
+
+ nest.rollup = function(f) {
+ rollup = f;
+ return nest;
+ };
+
+ return nest;
+};
+d3.keys = function(map) {
+ var keys = [];
+ for (var key in map) keys.push(key);
+ return keys;
+};
+d3.values = function(map) {
+ var values = [];
+ for (var key in map) values.push(map[key]);
+ return values;
+};
+d3.entries = function(map) {
+ var entries = [];
+ for (var key in map) entries.push({key: key, value: map[key]});
+ return entries;
+};
+d3.permute = function(array, indexes) {
+ var permutes = [],
+ i = -1,
+ n = indexes.length;
+ while (++i < n) permutes[i] = array[indexes[i]];
+ return permutes;
+};
+d3.merge = function(arrays) {
+ return Array.prototype.concat.apply([], arrays);
+};
+d3.split = function(array, f) {
+ var arrays = [],
+ values = [],
+ value,
+ i = -1,
+ n = array.length;
+ if (arguments.length < 2) f = d3_splitter;
+ while (++i < n) {
+ if (f.call(values, value = array[i], i)) {
+ values = [];
+ } else {
+ if (!values.length) arrays.push(values);
+ values.push(value);
+ }
+ }
+ return arrays;
+};
+
+function d3_splitter(d) {
+ return d == null;
+}
+function d3_collapse(s) {
+ return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " ");
+}
+d3.range = function(start, stop, step) {
+ if (arguments.length < 3) {
+ step = 1;
+ if (arguments.length < 2) {
+ stop = start;
+ start = 0;
+ }
+ }
+ if ((stop - start) / step === Infinity) throw new Error("infinite range");
+ var range = [],
+ k = d3_range_integerScale(Math.abs(step)),
+ i = -1,
+ j;
+ start *= k, stop *= k, step *= k;
+ if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k);
+ else while ((j = start + step * ++i) < stop) range.push(j / k);
+ return range;
+};
+
+function d3_range_integerScale(x) {
+ var k = 1;
+ while (x * k % 1) k *= 10;
+ return k;
+}
+d3.requote = function(s) {
+ return s.replace(d3_requote_re, "\\$&");
+};
+
+var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
+d3.round = function(x, n) {
+ return n
+ ? Math.round(x * (n = Math.pow(10, n))) / n
+ : Math.round(x);
+};
+d3.xhr = function(url, mime, callback) {
+ var req = new XMLHttpRequest;
+ if (arguments.length < 3) callback = mime, mime = null;
+ else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
+ req.open("GET", url, true);
+ if (mime) req.setRequestHeader("Accept", mime);
+ req.onreadystatechange = function() {
+ if (req.readyState === 4) callback(req.status < 300 ? req : null);
+ };
+ req.send(null);
+};
+d3.text = function(url, mime, callback) {
+ function ready(req) {
+ callback(req && req.responseText);
+ }
+ if (arguments.length < 3) {
+ callback = mime;
+ mime = null;
+ }
+ d3.xhr(url, mime, ready);
+};
+d3.json = function(url, callback) {
+ d3.text(url, "application/json", function(text) {
+ callback(text ? JSON.parse(text) : null);
+ });
+};
+d3.html = function(url, callback) {
+ d3.text(url, "text/html", function(text) {
+ if (text != null) { // Treat empty string as valid HTML.
+ var range = document.createRange();
+ range.selectNode(document.body);
+ text = range.createContextualFragment(text);
+ }
+ callback(text);
+ });
+};
+d3.xml = function(url, mime, callback) {
+ function ready(req) {
+ callback(req && req.responseXML);
+ }
+ if (arguments.length < 3) {
+ callback = mime;
+ mime = null;
+ }
+ d3.xhr(url, mime, ready);
+};
+var d3_nsPrefix = {
+ svg: "http://www.w3.org/2000/svg",
+ xhtml: "http://www.w3.org/1999/xhtml",
+ xlink: "http://www.w3.org/1999/xlink",
+ xml: "http://www.w3.org/XML/1998/namespace",
+ xmlns: "http://www.w3.org/2000/xmlns/"
+};
+
+d3.ns = {
+ prefix: d3_nsPrefix,
+ qualify: function(name) {
+ var i = name.indexOf(":"),
+ prefix = name;
+ if (i >= 0) {
+ prefix = name.substring(0, i);
+ name = name.substring(i + 1);
+ }
+ return d3_nsPrefix.hasOwnProperty(prefix)
+ ? {space: d3_nsPrefix[prefix], local: name}
+ : name;
+ }
+};
+d3.dispatch = function() {
+ var dispatch = new d3_dispatch,
+ i = -1,
+ n = arguments.length;
+ while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+ return dispatch;
+};
+
+function d3_dispatch() {}
+
+d3_dispatch.prototype.on = function(type, listener) {
+ var i = type.indexOf("."),
+ name = "";
+
+ // Extract optional namespace, e.g., "click.foo"
+ if (i > 0) {
+ name = type.substring(i + 1);
+ type = type.substring(0, i);
+ }
+
+ return arguments.length < 2
+ ? this[type].on(name)
+ : this[type].on(name, listener);
+};
+
+function d3_dispatch_event(dispatch) {
+ var listeners = [],
+ listenerByName = new d3_Map;
+
+ function event() {
+ var z = listeners, // defensive reference
+ i = -1,
+ n = z.length,
+ l;
+ while (++i < n) if (l = z[i].on) l.apply(this, arguments);
+ return dispatch;
+ }
+
+ event.on = function(name, listener) {
+ var l = listenerByName.get(name),
+ i;
+
+ // return the current listener, if any
+ if (arguments.length < 2) return l && l.on;
+
+ // remove the old listener, if any (with copy-on-write)
+ if (l) {
+ l.on = null;
+ listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
+ listenerByName.remove(name);
+ }
+
+ // add the new listener, if any
+ if (listener) listeners.push(listenerByName.set(name, {on: listener}));
+
+ return dispatch;
+ };
+
+ return event;
+}
+// TODO align
+d3.format = function(specifier) {
+ var match = d3_format_re.exec(specifier),
+ fill = match[1] || " ",
+ sign = match[3] || "",
+ zfill = match[5],
+ width = +match[6],
+ comma = match[7],
+ precision = match[8],
+ type = match[9],
+ scale = 1,
+ suffix = "",
+ integer = false;
+
+ if (precision) precision = +precision.substring(1);
+
+ if (zfill) {
+ fill = "0"; // TODO align = "=";
+ if (comma) width -= Math.floor((width - 1) / 4);
+ }
+
+ switch (type) {
+ case "n": comma = true; type = "g"; break;
+ case "%": scale = 100; suffix = "%"; type = "f"; break;
+ case "p": scale = 100; suffix = "%"; type = "r"; break;
+ case "d": integer = true; precision = 0; break;
+ case "s": scale = -1; type = "r"; break;
+ }
+
+ // If no precision is specified for r, fallback to general notation.
+ if (type == "r" && !precision) type = "g";
+
+ type = d3_format_types.get(type) || d3_format_typeDefault;
+
+ return function(value) {
+
+ // Return the empty string for floats formatted as ints.
+ if (integer && (value % 1)) return "";
+
+ // Convert negative to positive, and record the sign prefix.
+ var negative = (value < 0) && (value = -value) ? "\u2212" : sign;
+
+ // Apply the scale, computing it from the value's exponent for si format.
+ if (scale < 0) {
+ var prefix = d3.formatPrefix(value, precision);
+ value *= prefix.scale;
+ suffix = prefix.symbol;
+ } else {
+ value *= scale;
+ }
+
+ // Convert to the desired precision.
+ value = type(value, precision);
+
+ // If the fill character is 0, the sign and group is applied after the fill.
+ if (zfill) {
+ var length = value.length + negative.length;
+ if (length < width) value = new Array(width - length + 1).join(fill) + value;
+ if (comma) value = d3_format_group(value);
+ value = negative + value;
+ }
+
+ // Otherwise (e.g., space-filling), the sign and group is applied before.
+ else {
+ if (comma) value = d3_format_group(value);
+ value = negative + value;
+ var length = value.length;
+ if (length < width) value = new Array(width - length + 1).join(fill) + value;
+ }
+
+ return value + suffix;
+ };
+};
+
+// [[fill]align][sign][#][0][width][,][.precision][type]
+var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
+
+var d3_format_types = d3.map({
+ g: function(x, p) { return x.toPrecision(p); },
+ e: function(x, p) { return x.toExponential(p); },
+ f: function(x, p) { return x.toFixed(p); },
+ r: function(x, p) { return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p))); }
+});
+
+function d3_format_precision(x, p) {
+ return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1);
+}
+
+function d3_format_typeDefault(x) {
+ return x + "";
+}
+
+// Apply comma grouping for thousands.
+function d3_format_group(value) {
+ var i = value.lastIndexOf("."),
+ f = i >= 0 ? value.substring(i) : (i = value.length, ""),
+ t = [];
+ while (i > 0) t.push(value.substring(i -= 3, i + 3));
+ return t.reverse().join(",") + f;
+}
+var d3_formatPrefixes = ["y","z","a","f","p","n","μ","m","","k","M","G","T","P","E","Z","Y"].map(d3_formatPrefix);
+
+d3.formatPrefix = function(value, precision) {
+ var i = 0;
+ if (value) {
+ if (value < 0) value *= -1;
+ if (precision) value = d3.round(value, d3_format_precision(value, precision));
+ i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
+ i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3));
+ }
+ return d3_formatPrefixes[8 + i / 3];
+};
+
+function d3_formatPrefix(d, i) {
+ return {
+ scale: Math.pow(10, (8 - i) * 3),
+ symbol: d
+ };
+}
+
+/*
+ * TERMS OF USE - EASING EQUATIONS
+ *
+ * Open source under the BSD License.
+ *
+ * Copyright 2001 Robert Penner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the author nor the names of contributors may be used to
+ * endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+var d3_ease_quad = d3_ease_poly(2),
+ d3_ease_cubic = d3_ease_poly(3),
+ d3_ease_default = function() { return d3_ease_identity; };
+
+var d3_ease = d3.map({
+ linear: d3_ease_default,
+ poly: d3_ease_poly,
+ quad: function() { return d3_ease_quad; },
+ cubic: function() { return d3_ease_cubic; },
+ sin: function() { return d3_ease_sin; },
+ exp: function() { return d3_ease_exp; },
+ circle: function() { return d3_ease_circle; },
+ elastic: d3_ease_elastic,
+ back: d3_ease_back,
+ bounce: function() { return d3_ease_bounce; }
+});
+
+var d3_ease_mode = d3.map({
+ "in": d3_ease_identity,
+ "out": d3_ease_reverse,
+ "in-out": d3_ease_reflect,
+ "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); }
+});
+
+d3.ease = function(name) {
+ var i = name.indexOf("-"),
+ t = i >= 0 ? name.substring(0, i) : name,
+ m = i >= 0 ? name.substring(i + 1) : "in";
+ t = d3_ease.get(t) || d3_ease_default;
+ m = d3_ease_mode.get(m) || d3_ease_identity;
+ return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1))));
+};
+
+function d3_ease_clamp(f) {
+ return function(t) {
+ return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
+ };
+}
+
+function d3_ease_reverse(f) {
+ return function(t) {
+ return 1 - f(1 - t);
+ };
+}
+
+function d3_ease_reflect(f) {
+ return function(t) {
+ return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t)));
+ };
+}
+
+function d3_ease_identity(t) {
+ return t;
+}
+
+function d3_ease_poly(e) {
+ return function(t) {
+ return Math.pow(t, e);
+ };
+}
+
+function d3_ease_sin(t) {
+ return 1 - Math.cos(t * Math.PI / 2);
+}
+
+function d3_ease_exp(t) {
+ return Math.pow(2, 10 * (t - 1));
+}
+
+function d3_ease_circle(t) {
+ return 1 - Math.sqrt(1 - t * t);
+}
+
+function d3_ease_elastic(a, p) {
+ var s;
+ if (arguments.length < 2) p = 0.45;
+ if (arguments.length < 1) { a = 1; s = p / 4; }
+ else s = p / (2 * Math.PI) * Math.asin(1 / a);
+ return function(t) {
+ return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p);
+ };
+}
+
+function d3_ease_back(s) {
+ if (!s) s = 1.70158;
+ return function(t) {
+ return t * t * ((s + 1) * t - s);
+ };
+}
+
+function d3_ease_bounce(t) {
+ return t < 1 / 2.75 ? 7.5625 * t * t
+ : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75
+ : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375
+ : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
+}
+d3.event = null;
+
+function d3_eventCancel() {
+ d3.event.stopPropagation();
+ d3.event.preventDefault();
+}
+
+function d3_eventSource() {
+ var e = d3.event, s;
+ while (s = e.sourceEvent) e = s;
+ return e;
+}
+
+// Like d3.dispatch, but for custom events abstracting native UI events. These
+// events have a target component (such as a brush), a target element (such as
+// the svg:g element containing the brush) and the standard arguments `d` (the
+// target element's data) and `i` (the selection index of the target element).
+function d3_eventDispatch(target) {
+ var dispatch = new d3_dispatch,
+ i = 0,
+ n = arguments.length;
+
+ while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+
+ // Creates a dispatch context for the specified `thiz` (typically, the target
+ // DOM element that received the source event) and `argumentz` (typically, the
+ // data `d` and index `i` of the target element). The returned function can be
+ // used to dispatch an event to any registered listeners; the function takes a
+ // single argument as input, being the event to dispatch. The event must have
+ // a "type" attribute which corresponds to a type registered in the
+ // constructor. This context will automatically populate the "sourceEvent" and
+ // "target" attributes of the event, as well as setting the `d3.event` global
+ // for the duration of the notification.
+ dispatch.of = function(thiz, argumentz) {
+ return function(e1) {
+ try {
+ var e0 =
+ e1.sourceEvent = d3.event;
+ e1.target = target;
+ d3.event = e1;
+ dispatch[e1.type].apply(thiz, argumentz);
+ } finally {
+ d3.event = e0;
+ }
+ };
+ };
+
+ return dispatch;
+}
+d3.interpolate = function(a, b) {
+ var i = d3.interpolators.length, f;
+ while (--i >= 0 && !(f = d3.interpolators[i](a, b)));
+ return f;
+};
+
+d3.interpolateNumber = function(a, b) {
+ b -= a;
+ return function(t) { return a + b * t; };
+};
+
+d3.interpolateRound = function(a, b) {
+ b -= a;
+ return function(t) { return Math.round(a + b * t); };
+};
+
+d3.interpolateString = function(a, b) {
+ var m, // current match
+ i, // current index
+ j, // current index (for coallescing)
+ s0 = 0, // start index of current string prefix
+ s1 = 0, // end index of current string prefix
+ s = [], // string constants and placeholders
+ q = [], // number interpolators
+ n, // q.length
+ o;
+
+ // Reset our regular expression!
+ d3_interpolate_number.lastIndex = 0;
+
+ // Find all numbers in b.
+ for (i = 0; m = d3_interpolate_number.exec(b); ++i) {
+ if (m.index) s.push(b.substring(s0, s1 = m.index));
+ q.push({i: s.length, x: m[0]});
+ s.push(null);
+ s0 = d3_interpolate_number.lastIndex;
+ }
+ if (s0 < b.length) s.push(b.substring(s0));
+
+ // Find all numbers in a.
+ for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {
+ o = q[i];
+ if (o.x == m[0]) { // The numbers match, so coallesce.
+ if (o.i) {
+ if (s[o.i + 1] == null) { // This match is followed by another number.
+ s[o.i - 1] += o.x;
+ s.splice(o.i, 1);
+ for (j = i + 1; j < n; ++j) q[j].i--;
+ } else { // This match is followed by a string, so coallesce twice.
+ s[o.i - 1] += o.x + s[o.i + 1];
+ s.splice(o.i, 2);
+ for (j = i + 1; j < n; ++j) q[j].i -= 2;
+ }
+ } else {
+ if (s[o.i + 1] == null) { // This match is followed by another number.
+ s[o.i] = o.x;
+ } else { // This match is followed by a string, so coallesce twice.
+ s[o.i] = o.x + s[o.i + 1];
+ s.splice(o.i + 1, 1);
+ for (j = i + 1; j < n; ++j) q[j].i--;
+ }
+ }
+ q.splice(i, 1);
+ n--;
+ i--;
+ } else {
+ o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x));
+ }
+ }
+
+ // Remove any numbers in b not found in a.
+ while (i < n) {
+ o = q.pop();
+ if (s[o.i + 1] == null) { // This match is followed by another number.
+ s[o.i] = o.x;
+ } else { // This match is followed by a string, so coallesce twice.
+ s[o.i] = o.x + s[o.i + 1];
+ s.splice(o.i + 1, 1);
+ }
+ n--;
+ }
+
+ // Special optimization for only a single match.
+ if (s.length === 1) {
+ return s[0] == null ? q[0].x : function() { return b; };
+ }
+
+ // Otherwise, interpolate each of the numbers and rejoin the string.
+ return function(t) {
+ for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);
+ return s.join("");
+ };
+};
+
+d3.interpolateTransform = function(a, b) {
+ var s = [], // string constants and placeholders
+ q = [], // number interpolators
+ n,
+ A = d3.transform(a),
+ B = d3.transform(b),
+ ta = A.translate,
+ tb = B.translate,
+ ra = A.rotate,
+ rb = B.rotate,
+ wa = A.skew,
+ wb = B.skew,
+ ka = A.scale,
+ kb = B.scale;
+
+ if (ta[0] != tb[0] || ta[1] != tb[1]) {
+ s.push("translate(", null, ",", null, ")");
+ q.push({i: 1, x: d3.interpolateNumber(ta[0], tb[0])}, {i: 3, x: d3.interpolateNumber(ta[1], tb[1])});
+ } else if (tb[0] || tb[1]) {
+ s.push("translate(" + tb + ")");
+ } else {
+ s.push("");
+ }
+
+ if (ra != rb) {
+ q.push({i: s.push(s.pop() + "rotate(", null, ")") - 2, x: d3.interpolateNumber(ra, rb)});
+ } else if (rb) {
+ s.push(s.pop() + "rotate(" + rb + ")");
+ }
+
+ if (wa != wb) {
+ q.push({i: s.push(s.pop() + "skewX(", null, ")") - 2, x: d3.interpolateNumber(wa, wb)});
+ } else if (wb) {
+ s.push(s.pop() + "skewX(" + wb + ")");
+ }
+
+ if (ka[0] != kb[0] || ka[1] != kb[1]) {
+ n = s.push(s.pop() + "scale(", null, ",", null, ")");
+ q.push({i: n - 4, x: d3.interpolateNumber(ka[0], kb[0])}, {i: n - 2, x: d3.interpolateNumber(ka[1], kb[1])});
+ } else if (kb[0] != 1 || kb[1] != 1) {
+ s.push(s.pop() + "scale(" + kb + ")");
+ }
+
+ n = q.length;
+ return function(t) {
+ var i = -1, o;
+ while (++i < n) s[(o = q[i]).i] = o.x(t);
+ return s.join("");
+ };
+};
+
+d3.interpolateRgb = function(a, b) {
+ a = d3.rgb(a);
+ b = d3.rgb(b);
+ var ar = a.r,
+ ag = a.g,
+ ab = a.b,
+ br = b.r - ar,
+ bg = b.g - ag,
+ bb = b.b - ab;
+ return function(t) {
+ return "#"
+ + d3_rgb_hex(Math.round(ar + br * t))
+ + d3_rgb_hex(Math.round(ag + bg * t))
+ + d3_rgb_hex(Math.round(ab + bb * t));
+ };
+};
+
+// interpolates HSL space, but outputs RGB string (for compatibility)
+d3.interpolateHsl = function(a, b) {
+ a = d3.hsl(a);
+ b = d3.hsl(b);
+ var h0 = a.h,
+ s0 = a.s,
+ l0 = a.l,
+ h1 = b.h - h0,
+ s1 = b.s - s0,
+ l1 = b.l - l0;
+ return function(t) {
+ return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString();
+ };
+};
+
+d3.interpolateArray = function(a, b) {
+ var x = [],
+ c = [],
+ na = a.length,
+ nb = b.length,
+ n0 = Math.min(a.length, b.length),
+ i;
+ for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i]));
+ for (; i < na; ++i) c[i] = a[i];
+ for (; i < nb; ++i) c[i] = b[i];
+ return function(t) {
+ for (i = 0; i < n0; ++i) c[i] = x[i](t);
+ return c;
+ };
+};
+
+d3.interpolateObject = function(a, b) {
+ var i = {},
+ c = {},
+ k;
+ for (k in a) {
+ if (k in b) {
+ i[k] = d3_interpolateByName(k)(a[k], b[k]);
+ } else {
+ c[k] = a[k];
+ }
+ }
+ for (k in b) {
+ if (!(k in a)) {
+ c[k] = b[k];
+ }
+ }
+ return function(t) {
+ for (k in i) c[k] = i[k](t);
+ return c;
+ };
+}
+
+var d3_interpolate_number = /[-+]?(?:\d*\.?\d+)(?:[eE][-+]?\d+)?/g;
+
+function d3_interpolateByName(n) {
+ return n == "transform"
+ ? d3.interpolateTransform
+ : d3.interpolate;
+}
+
+d3.interpolators = [
+ d3.interpolateObject,
+ function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); },
+ function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); },
+ function(a, b) { return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b); },
+ function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b); }
+];
+function d3_uninterpolateNumber(a, b) {
+ b = b - (a = +a) ? 1 / (b - a) : 0;
+ return function(x) { return (x - a) * b; };
+}
+
+function d3_uninterpolateClamp(a, b) {
+ b = b - (a = +a) ? 1 / (b - a) : 0;
+ return function(x) { return Math.max(0, Math.min(1, (x - a) * b)); };
+}
+d3.rgb = function(r, g, b) {
+ return arguments.length === 1
+ ? (r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b)
+ : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb))
+ : d3_rgb(~~r, ~~g, ~~b);
+};
+
+function d3_rgb(r, g, b) {
+ return new d3_Rgb(r, g, b);
+}
+
+function d3_Rgb(r, g, b) {
+ this.r = r;
+ this.g = g;
+ this.b = b;
+}
+
+d3_Rgb.prototype.brighter = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ var r = this.r,
+ g = this.g,
+ b = this.b,
+ i = 30;
+ if (!r && !g && !b) return d3_rgb(i, i, i);
+ if (r && r < i) r = i;
+ if (g && g < i) g = i;
+ if (b && b < i) b = i;
+ return d3_rgb(
+ Math.min(255, Math.floor(r / k)),
+ Math.min(255, Math.floor(g / k)),
+ Math.min(255, Math.floor(b / k)));
+};
+
+d3_Rgb.prototype.darker = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ return d3_rgb(
+ Math.floor(k * this.r),
+ Math.floor(k * this.g),
+ Math.floor(k * this.b));
+};
+
+d3_Rgb.prototype.hsl = function() {
+ return d3_rgb_hsl(this.r, this.g, this.b);
+};
+
+d3_Rgb.prototype.toString = function() {
+ return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
+};
+
+function d3_rgb_hex(v) {
+ return v < 0x10
+ ? "0" + Math.max(0, v).toString(16)
+ : Math.min(255, v).toString(16);
+}
+
+function d3_rgb_parse(format, rgb, hsl) {
+ var r = 0, // red channel; int in [0, 255]
+ g = 0, // green channel; int in [0, 255]
+ b = 0, // blue channel; int in [0, 255]
+ m1, // CSS color specification match
+ m2, // CSS color specification type (e.g., rgb)
+ name;
+
+ /* Handle hsl, rgb. */
+ m1 = /([a-z]+)\((.*)\)/i.exec(format);
+ if (m1) {
+ m2 = m1[2].split(",");
+ switch (m1[1]) {
+ case "hsl": {
+ return hsl(
+ parseFloat(m2[0]), // degrees
+ parseFloat(m2[1]) / 100, // percentage
+ parseFloat(m2[2]) / 100 // percentage
+ );
+ }
+ case "rgb": {
+ return rgb(
+ d3_rgb_parseNumber(m2[0]),
+ d3_rgb_parseNumber(m2[1]),
+ d3_rgb_parseNumber(m2[2])
+ );
+ }
+ }
+ }
+
+ /* Named colors. */
+ if (name = d3_rgb_names.get(format)) return rgb(name.r, name.g, name.b);
+
+ /* Hexadecimal colors: #rgb and #rrggbb. */
+ if (format != null && format.charAt(0) === "#") {
+ if (format.length === 4) {
+ r = format.charAt(1); r += r;
+ g = format.charAt(2); g += g;
+ b = format.charAt(3); b += b;
+ } else if (format.length === 7) {
+ r = format.substring(1, 3);
+ g = format.substring(3, 5);
+ b = format.substring(5, 7);
+ }
+ r = parseInt(r, 16);
+ g = parseInt(g, 16);
+ b = parseInt(b, 16);
+ }
+
+ return rgb(r, g, b);
+}
+
+function d3_rgb_hsl(r, g, b) {
+ var min = Math.min(r /= 255, g /= 255, b /= 255),
+ max = Math.max(r, g, b),
+ d = max - min,
+ h,
+ s,
+ l = (max + min) / 2;
+ if (d) {
+ s = l < .5 ? d / (max + min) : d / (2 - max - min);
+ if (r == max) h = (g - b) / d + (g < b ? 6 : 0);
+ else if (g == max) h = (b - r) / d + 2;
+ else h = (r - g) / d + 4;
+ h *= 60;
+ } else {
+ s = h = 0;
+ }
+ return d3_hsl(h, s, l);
+}
+
+function d3_rgb_parseNumber(c) { // either integer or percentage
+ var f = parseFloat(c);
+ return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
+}
+
+var d3_rgb_names = d3.map({
+ aliceblue: "#f0f8ff",
+ antiquewhite: "#faebd7",
+ aqua: "#00ffff",
+ aquamarine: "#7fffd4",
+ azure: "#f0ffff",
+ beige: "#f5f5dc",
+ bisque: "#ffe4c4",
+ black: "#000000",
+ blanchedalmond: "#ffebcd",
+ blue: "#0000ff",
+ blueviolet: "#8a2be2",
+ brown: "#a52a2a",
+ burlywood: "#deb887",
+ cadetblue: "#5f9ea0",
+ chartreuse: "#7fff00",
+ chocolate: "#d2691e",
+ coral: "#ff7f50",
+ cornflowerblue: "#6495ed",
+ cornsilk: "#fff8dc",
+ crimson: "#dc143c",
+ cyan: "#00ffff",
+ darkblue: "#00008b",
+ darkcyan: "#008b8b",
+ darkgoldenrod: "#b8860b",
+ darkgray: "#a9a9a9",
+ darkgreen: "#006400",
+ darkgrey: "#a9a9a9",
+ darkkhaki: "#bdb76b",
+ darkmagenta: "#8b008b",
+ darkolivegreen: "#556b2f",
+ darkorange: "#ff8c00",
+ darkorchid: "#9932cc",
+ darkred: "#8b0000",
+ darksalmon: "#e9967a",
+ darkseagreen: "#8fbc8f",
+ darkslateblue: "#483d8b",
+ darkslategray: "#2f4f4f",
+ darkslategrey: "#2f4f4f",
+ darkturquoise: "#00ced1",
+ darkviolet: "#9400d3",
+ deeppink: "#ff1493",
+ deepskyblue: "#00bfff",
+ dimgray: "#696969",
+ dimgrey: "#696969",
+ dodgerblue: "#1e90ff",
+ firebrick: "#b22222",
+ floralwhite: "#fffaf0",
+ forestgreen: "#228b22",
+ fuchsia: "#ff00ff",
+ gainsboro: "#dcdcdc",
+ ghostwhite: "#f8f8ff",
+ gold: "#ffd700",
+ goldenrod: "#daa520",
+ gray: "#808080",
+ green: "#008000",
+ greenyellow: "#adff2f",
+ grey: "#808080",
+ honeydew: "#f0fff0",
+ hotpink: "#ff69b4",
+ indianred: "#cd5c5c",
+ indigo: "#4b0082",
+ ivory: "#fffff0",
+ khaki: "#f0e68c",
+ lavender: "#e6e6fa",
+ lavenderblush: "#fff0f5",
+ lawngreen: "#7cfc00",
+ lemonchiffon: "#fffacd",
+ lightblue: "#add8e6",
+ lightcoral: "#f08080",
+ lightcyan: "#e0ffff",
+ lightgoldenrodyellow: "#fafad2",
+ lightgray: "#d3d3d3",
+ lightgreen: "#90ee90",
+ lightgrey: "#d3d3d3",
+ lightpink: "#ffb6c1",
+ lightsalmon: "#ffa07a",
+ lightseagreen: "#20b2aa",
+ lightskyblue: "#87cefa",
+ lightslategray: "#778899",
+ lightslategrey: "#778899",
+ lightsteelblue: "#b0c4de",
+ lightyellow: "#ffffe0",
+ lime: "#00ff00",
+ limegreen: "#32cd32",
+ linen: "#faf0e6",
+ magenta: "#ff00ff",
+ maroon: "#800000",
+ mediumaquamarine: "#66cdaa",
+ mediumblue: "#0000cd",
+ mediumorchid: "#ba55d3",
+ mediumpurple: "#9370db",
+ mediumseagreen: "#3cb371",
+ mediumslateblue: "#7b68ee",
+ mediumspringgreen: "#00fa9a",
+ mediumturquoise: "#48d1cc",
+ mediumvioletred: "#c71585",
+ midnightblue: "#191970",
+ mintcream: "#f5fffa",
+ mistyrose: "#ffe4e1",
+ moccasin: "#ffe4b5",
+ navajowhite: "#ffdead",
+ navy: "#000080",
+ oldlace: "#fdf5e6",
+ olive: "#808000",
+ olivedrab: "#6b8e23",
+ orange: "#ffa500",
+ orangered: "#ff4500",
+ orchid: "#da70d6",
+ palegoldenrod: "#eee8aa",
+ palegreen: "#98fb98",
+ paleturquoise: "#afeeee",
+ palevioletred: "#db7093",
+ papayawhip: "#ffefd5",
+ peachpuff: "#ffdab9",
+ peru: "#cd853f",
+ pink: "#ffc0cb",
+ plum: "#dda0dd",
+ powderblue: "#b0e0e6",
+ purple: "#800080",
+ red: "#ff0000",
+ rosybrown: "#bc8f8f",
+ royalblue: "#4169e1",
+ saddlebrown: "#8b4513",
+ salmon: "#fa8072",
+ sandybrown: "#f4a460",
+ seagreen: "#2e8b57",
+ seashell: "#fff5ee",
+ sienna: "#a0522d",
+ silver: "#c0c0c0",
+ skyblue: "#87ceeb",
+ slateblue: "#6a5acd",
+ slategray: "#708090",
+ slategrey: "#708090",
+ snow: "#fffafa",
+ springgreen: "#00ff7f",
+ steelblue: "#4682b4",
+ tan: "#d2b48c",
+ teal: "#008080",
+ thistle: "#d8bfd8",
+ tomato: "#ff6347",
+ turquoise: "#40e0d0",
+ violet: "#ee82ee",
+ wheat: "#f5deb3",
+ white: "#ffffff",
+ whitesmoke: "#f5f5f5",
+ yellow: "#ffff00",
+ yellowgreen: "#9acd32"
+});
+
+d3_rgb_names.forEach(function(key, value) {
+ d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_rgb));
+});
+d3.hsl = function(h, s, l) {
+ return arguments.length === 1
+ ? (h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l)
+ : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl))
+ : d3_hsl(+h, +s, +l);
+};
+
+function d3_hsl(h, s, l) {
+ return new d3_Hsl(h, s, l);
+}
+
+function d3_Hsl(h, s, l) {
+ this.h = h;
+ this.s = s;
+ this.l = l;
+}
+
+d3_Hsl.prototype.brighter = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ return d3_hsl(this.h, this.s, this.l / k);
+};
+
+d3_Hsl.prototype.darker = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ return d3_hsl(this.h, this.s, k * this.l);
+};
+
+d3_Hsl.prototype.rgb = function() {
+ return d3_hsl_rgb(this.h, this.s, this.l);
+};
+
+d3_Hsl.prototype.toString = function() {
+ return this.rgb().toString();
+};
+
+function d3_hsl_rgb(h, s, l) {
+ var m1,
+ m2;
+
+ /* Some simple corrections for h, s and l. */
+ h = h % 360; if (h < 0) h += 360;
+ s = s < 0 ? 0 : s > 1 ? 1 : s;
+ l = l < 0 ? 0 : l > 1 ? 1 : l;
+
+ /* From FvD 13.37, CSS Color Module Level 3 */
+ m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
+ m1 = 2 * l - m2;
+
+ function v(h) {
+ if (h > 360) h -= 360;
+ else if (h < 0) h += 360;
+ if (h < 60) return m1 + (m2 - m1) * h / 60;
+ if (h < 180) return m2;
+ if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
+ return m1;
+ }
+
+ function vv(h) {
+ return Math.round(v(h) * 255);
+ }
+
+ return d3_rgb(vv(h + 120), vv(h), vv(h - 120));
+}
+function d3_selection(groups) {
+ d3_arraySubclass(groups, d3_selectionPrototype);
+ return groups;
+}
+
+var d3_select = function(s, n) { return n.querySelector(s); },
+ d3_selectAll = function(s, n) { return n.querySelectorAll(s); },
+ d3_selectRoot = document.documentElement,
+ d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector,
+ d3_selectMatches = function(n, s) { return d3_selectMatcher.call(n, s); };
+
+// Prefer Sizzle, if available.
+if (typeof Sizzle === "function") {
+ d3_select = function(s, n) { return Sizzle(s, n)[0]; };
+ d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); };
+ d3_selectMatches = Sizzle.matchesSelector;
+}
+
+var d3_selectionPrototype = [];
+
+d3.selection = function() {
+ return d3_selectionRoot;
+};
+
+d3.selection.prototype = d3_selectionPrototype;
+d3_selectionPrototype.select = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ group,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selector(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = (group = this[j]).parentNode;
+ for (var i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subgroup.push(subnode = selector.call(node, node.__data__, i));
+ if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+
+function d3_selection_selector(selector) {
+ return function() {
+ return d3_select(selector, this);
+ };
+}
+d3_selectionPrototype.selectAll = function(selector) {
+ var subgroups = [],
+ subgroup,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i)));
+ subgroup.parentNode = node;
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+
+function d3_selection_selectorAll(selector) {
+ return function() {
+ return d3_selectAll(selector, this);
+ };
+}
+d3_selectionPrototype.attr = function(name, value) {
+ name = d3.ns.qualify(name);
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) {
+ var node = this.node();
+ return name.local
+ ? node.getAttributeNS(name.space, name.local)
+ : node.getAttribute(name);
+ }
+
+ function attrNull() {
+ this.removeAttribute(name);
+ }
+
+ function attrNullNS() {
+ this.removeAttributeNS(name.space, name.local);
+ }
+
+ function attrConstant() {
+ this.setAttribute(name, value);
+ }
+
+ function attrConstantNS() {
+ this.setAttributeNS(name.space, name.local, value);
+ }
+
+ function attrFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.removeAttribute(name);
+ else this.setAttribute(name, x);
+ }
+
+ function attrFunctionNS() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.removeAttributeNS(name.space, name.local);
+ else this.setAttributeNS(name.space, name.local, x);
+ }
+
+ return this.each(value == null
+ ? (name.local ? attrNullNS : attrNull) : (typeof value === "function"
+ ? (name.local ? attrFunctionNS : attrFunction)
+ : (name.local ? attrConstantNS : attrConstant)));
+};
+d3_selectionPrototype.classed = function(name, value) {
+ var names = name.split(d3_selection_classedWhitespace),
+ n = names.length,
+ i = -1;
+ if (arguments.length > 1) {
+ while (++i < n) d3_selection_classed.call(this, names[i], value);
+ return this;
+ } else {
+ while (++i < n) if (!d3_selection_classed.call(this, names[i])) return false;
+ return true;
+ }
+};
+
+var d3_selection_classedWhitespace = /\s+/g;
+
+function d3_selection_classed(name, value) {
+ var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g");
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) {
+ var node = this.node();
+ if (c = node.classList) return c.contains(name);
+ var c = node.className;
+ re.lastIndex = 0;
+ return re.test(c.baseVal != null ? c.baseVal : c);
+ }
+
+ function classedAdd() {
+ if (c = this.classList) return c.add(name);
+ var c = this.className,
+ cb = c.baseVal != null,
+ cv = cb ? c.baseVal : c;
+ re.lastIndex = 0;
+ if (!re.test(cv)) {
+ cv = d3_collapse(cv + " " + name);
+ if (cb) c.baseVal = cv;
+ else this.className = cv;
+ }
+ }
+
+ function classedRemove() {
+ if (c = this.classList) return c.remove(name);
+ var c = this.className,
+ cb = c.baseVal != null,
+ cv = cb ? c.baseVal : c;
+ cv = d3_collapse(cv.replace(re, " "));
+ if (cb) c.baseVal = cv;
+ else this.className = cv;
+ }
+
+ function classedFunction() {
+ (value.apply(this, arguments)
+ ? classedAdd
+ : classedRemove).call(this);
+ }
+
+ return this.each(typeof value === "function"
+ ? classedFunction : value
+ ? classedAdd
+ : classedRemove);
+}
+d3_selectionPrototype.style = function(name, value, priority) {
+ if (arguments.length < 3) priority = "";
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) return window
+ .getComputedStyle(this.node(), null)
+ .getPropertyValue(name);
+
+ function styleNull() {
+ this.style.removeProperty(name);
+ }
+
+ function styleConstant() {
+ this.style.setProperty(name, value, priority);
+ }
+
+ function styleFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.style.removeProperty(name);
+ else this.style.setProperty(name, x, priority);
+ }
+
+ return this.each(value == null
+ ? styleNull : (typeof value === "function"
+ ? styleFunction : styleConstant));
+};
+d3_selectionPrototype.property = function(name, value) {
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) return this.node()[name];
+
+ function propertyNull() {
+ delete this[name];
+ }
+
+ function propertyConstant() {
+ this[name] = value;
+ }
+
+ function propertyFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) delete this[name];
+ else this[name] = x;
+ }
+
+ return this.each(value == null
+ ? propertyNull : (typeof value === "function"
+ ? propertyFunction : propertyConstant));
+};
+d3_selectionPrototype.text = function(value) {
+ return arguments.length < 1
+ ? this.node().textContent : this.each(typeof value === "function"
+ ? function() { var v = value.apply(this, arguments); this.textContent = v == null ? "" : v; } : value == null
+ ? function() { this.textContent = ""; }
+ : function() { this.textContent = value; });
+};
+d3_selectionPrototype.html = function(value) {
+ return arguments.length < 1
+ ? this.node().innerHTML : this.each(typeof value === "function"
+ ? function() { var v = value.apply(this, arguments); this.innerHTML = v == null ? "" : v; } : value == null
+ ? function() { this.innerHTML = ""; }
+ : function() { this.innerHTML = value; });
+};
+// TODO append(node)?
+// TODO append(function)?
+d3_selectionPrototype.append = function(name) {
+ name = d3.ns.qualify(name);
+
+ function append() {
+ return this.appendChild(document.createElementNS(this.namespaceURI, name));
+ }
+
+ function appendNS() {
+ return this.appendChild(document.createElementNS(name.space, name.local));
+ }
+
+ return this.select(name.local ? appendNS : append);
+};
+// TODO insert(node, function)?
+// TODO insert(function, string)?
+// TODO insert(function, function)?
+d3_selectionPrototype.insert = function(name, before) {
+ name = d3.ns.qualify(name);
+
+ function insert() {
+ return this.insertBefore(
+ document.createElementNS(this.namespaceURI, name),
+ d3_select(before, this));
+ }
+
+ function insertNS() {
+ return this.insertBefore(
+ document.createElementNS(name.space, name.local),
+ d3_select(before, this));
+ }
+
+ return this.select(name.local ? insertNS : insert);
+};
+// TODO remove(selector)?
+// TODO remove(node)?
+// TODO remove(function)?
+d3_selectionPrototype.remove = function() {
+ return this.each(function() {
+ var parent = this.parentNode;
+ if (parent) parent.removeChild(this);
+ });
+};
+d3_selectionPrototype.data = function(value, key) {
+ var i = -1,
+ n = this.length,
+ group,
+ node;
+
+ // If no value is specified, return the first value.
+ if (!arguments.length) {
+ value = new Array(n = (group = this[0]).length);
+ while (++i < n) {
+ if (node = group[i]) {
+ value[i] = node.__data__;
+ }
+ }
+ return value;
+ }
+
+ function bind(group, groupData) {
+ var i,
+ n = group.length,
+ m = groupData.length,
+ n0 = Math.min(n, m),
+ n1 = Math.max(n, m),
+ updateNodes = [],
+ enterNodes = [],
+ exitNodes = [],
+ node,
+ nodeData;
+
+ if (key) {
+ var nodeByKeyValue = new d3_Map,
+ keyValues = [],
+ keyValue,
+ j = groupData.length;
+
+ for (i = -1; ++i < n;) {
+ keyValue = key.call(node = group[i], node.__data__, i);
+ if (nodeByKeyValue.has(keyValue)) {
+ exitNodes[j++] = node; // duplicate key
+ } else {
+ nodeByKeyValue.set(keyValue, node);
+ }
+ keyValues.push(keyValue);
+ }
+
+ for (i = -1; ++i < m;) {
+ keyValue = key.call(groupData, nodeData = groupData[i], i)
+ if (nodeByKeyValue.has(keyValue)) {
+ updateNodes[i] = node = nodeByKeyValue.get(keyValue);
+ node.__data__ = nodeData;
+ enterNodes[i] = exitNodes[i] = null;
+ } else {
+ enterNodes[i] = d3_selection_dataNode(nodeData);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ nodeByKeyValue.remove(keyValue);
+ }
+
+ for (i = -1; ++i < n;) {
+ if (nodeByKeyValue.has(keyValues[i])) {
+ exitNodes[i] = group[i];
+ }
+ }
+ } else {
+ for (i = -1; ++i < n0;) {
+ node = group[i];
+ nodeData = groupData[i];
+ if (node) {
+ node.__data__ = nodeData;
+ updateNodes[i] = node;
+ enterNodes[i] = exitNodes[i] = null;
+ } else {
+ enterNodes[i] = d3_selection_dataNode(nodeData);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ }
+ for (; i < m; ++i) {
+ enterNodes[i] = d3_selection_dataNode(groupData[i]);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ for (; i < n1; ++i) {
+ exitNodes[i] = group[i];
+ enterNodes[i] = updateNodes[i] = null;
+ }
+ }
+
+ enterNodes.update
+ = updateNodes;
+
+ enterNodes.parentNode
+ = updateNodes.parentNode
+ = exitNodes.parentNode
+ = group.parentNode;
+
+ enter.push(enterNodes);
+ update.push(updateNodes);
+ exit.push(exitNodes);
+ }
+
+ var enter = d3_selection_enter([]),
+ update = d3_selection([]),
+ exit = d3_selection([]);
+
+ if (typeof value === "function") {
+ while (++i < n) {
+ bind(group = this[i], value.call(group, group.parentNode.__data__, i));
+ }
+ } else {
+ while (++i < n) {
+ bind(group = this[i], value);
+ }
+ }
+
+ update.enter = function() { return enter; };
+ update.exit = function() { return exit; };
+ return update;
+};
+
+function d3_selection_dataNode(data) {
+ return {__data__: data};
+}
+d3_selectionPrototype.datum =
+d3_selectionPrototype.map = function(value) {
+ return arguments.length < 1
+ ? this.property("__data__")
+ : this.property("__data__", value);
+};
+d3_selectionPrototype.filter = function(filter) {
+ var subgroups = [],
+ subgroup,
+ group,
+ node;
+
+ if (typeof filter !== "function") filter = d3_selection_filter(filter);
+
+ for (var j = 0, m = this.length; j < m; j++) {
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = (group = this[j]).parentNode;
+ for (var i = 0, n = group.length; i < n; i++) {
+ if ((node = group[i]) && filter.call(node, node.__data__, i)) {
+ subgroup.push(node);
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+
+function d3_selection_filter(selector) {
+ return function() {
+ return d3_selectMatches(this, selector);
+ };
+}
+d3_selectionPrototype.order = function() {
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
+ if (node = group[i]) {
+ if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
+ next = node;
+ }
+ }
+ }
+ return this;
+};
+d3_selectionPrototype.sort = function(comparator) {
+ comparator = d3_selection_sortComparator.apply(this, arguments);
+ for (var j = -1, m = this.length; ++j < m;) this[j].sort(comparator);
+ return this.order();
+};
+
+function d3_selection_sortComparator(comparator) {
+ if (!arguments.length) comparator = d3.ascending;
+ return function(a, b) {
+ return comparator(a && a.__data__, b && b.__data__);
+ };
+}
+// type can be namespaced, e.g., "click.foo"
+// listener can be null for removal
+d3_selectionPrototype.on = function(type, listener, capture) {
+ if (arguments.length < 3) capture = false;
+
+ // parse the type specifier
+ var name = "__on" + type, i = type.indexOf(".");
+ if (i > 0) type = type.substring(0, i);
+
+ // if called with only one argument, return the current listener
+ if (arguments.length < 2) return (i = this.node()[name]) && i._;
+
+ // remove the old event listener, and add the new event listener
+ return this.each(function(d, i) {
+ var node = this,
+ o = node[name];
+
+ // remove the old listener, if any (using the previously-set capture)
+ if (o) {
+ node.removeEventListener(type, o, o.$);
+ delete node[name];
+ }
+
+ // add the new listener, if any (remembering the capture flag)
+ if (listener) {
+ node.addEventListener(type, node[name] = l, l.$ = capture);
+ l._ = listener; // stash the unwrapped listener for get
+ }
+
+ // wrapped event listener that preserves i
+ function l(e) {
+ var o = d3.event; // Events can be reentrant (e.g., focus).
+ d3.event = e;
+ try {
+ listener.call(node, node.__data__, i);
+ } finally {
+ d3.event = o;
+ }
+ }
+ });
+};
+d3_selectionPrototype.each = function(callback) {
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ var node = group[i];
+ if (node) callback.call(node, node.__data__, i, j);
+ }
+ }
+ return this;
+};
+//
+// Note: assigning to the arguments array simultaneously changes the value of
+// the corresponding argument!
+//
+// TODO The `this` argument probably shouldn't be the first argument to the
+// callback, anyway, since it's redundant. However, that will require a major
+// version bump due to backwards compatibility, so I'm not changing it right
+// away.
+//
+d3_selectionPrototype.call = function(callback) {
+ callback.apply(this, (arguments[0] = this, arguments));
+ return this;
+};
+d3_selectionPrototype.empty = function() {
+ return !this.node();
+};
+d3_selectionPrototype.node = function(callback) {
+ for (var j = 0, m = this.length; j < m; j++) {
+ for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+ var node = group[i];
+ if (node) return node;
+ }
+ }
+ return null;
+};
+d3_selectionPrototype.transition = function() {
+ var subgroups = [],
+ subgroup,
+ node;
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ subgroups.push(subgroup = []);
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ subgroup.push((node = group[i]) ? {node: node, delay: d3_transitionDelay, duration: d3_transitionDuration} : null);
+ }
+ }
+
+ return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now());
+};
+var d3_selectionRoot = d3_selection([[document]]);
+
+d3_selectionRoot[0].parentNode = d3_selectRoot;
+
+// TODO fast singleton implementation!
+// TODO select(function)
+d3.select = function(selector) {
+ return typeof selector === "string"
+ ? d3_selectionRoot.select(selector)
+ : d3_selection([[selector]]); // assume node
+};
+
+// TODO selectAll(function)
+d3.selectAll = function(selector) {
+ return typeof selector === "string"
+ ? d3_selectionRoot.selectAll(selector)
+ : d3_selection([d3_array(selector)]); // assume node[]
+};
+function d3_selection_enter(selection) {
+ d3_arraySubclass(selection, d3_selection_enterPrototype);
+ return selection;
+}
+
+var d3_selection_enterPrototype = [];
+
+d3.selection.enter = d3_selection_enter;
+d3.selection.enter.prototype = d3_selection_enterPrototype;
+
+d3_selection_enterPrototype.append = d3_selectionPrototype.append;
+d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;
+d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
+d3_selection_enterPrototype.node = d3_selectionPrototype.node;
+d3_selection_enterPrototype.select = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ upgroup,
+ group,
+ node;
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ upgroup = (group = this[j]).update;
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = group.parentNode;
+ for (var i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));
+ subnode.__data__ = node.__data__;
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+function d3_transition(groups, id, time) {
+ d3_arraySubclass(groups, d3_transitionPrototype);
+
+ var tweens = new d3_Map,
+ event = d3.dispatch("start", "end"),
+ ease = d3_transitionEase;
+
+ groups.id = id;
+
+ groups.time = time;
+
+ groups.tween = function(name, tween) {
+ if (arguments.length < 2) return tweens.get(name);
+ if (tween == null) tweens.remove(name);
+ else tweens.set(name, tween);
+ return groups;
+ };
+
+ groups.ease = function(value) {
+ if (!arguments.length) return ease;
+ ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);
+ return groups;
+ };
+
+ groups.each = function(type, listener) {
+ if (arguments.length < 2) return d3_transition_each.call(groups, type);
+ event.on(type, listener);
+ return groups;
+ };
+
+ d3.timer(function(elapsed) {
+ groups.each(function(d, i, j) {
+ var tweened = [],
+ node = this,
+ delay = groups[j][i].delay,
+ duration = groups[j][i].duration,
+ lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0});
+
+ ++lock.count;
+
+ delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time);
+
+ function start(elapsed) {
+ if (lock.active > id) return stop();
+ lock.active = id;
+
+ tweens.forEach(function(key, value) {
+ if (tween = value.call(node, d, i)) {
+ tweened.push(tween);
+ }
+ });
+
+ event.start.call(node, d, i);
+ if (!tick(elapsed)) d3.timer(tick, 0, time);
+ return 1;
+ }
+
+ function tick(elapsed) {
+ if (lock.active !== id) return stop();
+
+ var t = (elapsed - delay) / duration,
+ e = ease(t),
+ n = tweened.length;
+
+ while (n > 0) {
+ tweened[--n].call(node, e);
+ }
+
+ if (t >= 1) {
+ stop();
+ d3_transitionId = id;
+ event.end.call(node, d, i);
+ d3_transitionId = 0;
+ return 1;
+ }
+ }
+
+ function stop() {
+ if (!--lock.count) delete node.__transition__;
+ return 1;
+ }
+ });
+ return 1;
+ }, 0, time);
+
+ return groups;
+}
+
+var d3_transitionRemove = {};
+
+function d3_transitionNull(d, i, a) {
+ return a != "" && d3_transitionRemove;
+}
+
+function d3_transitionTween(name, b) {
+ var interpolate = d3_interpolateByName(name);
+
+ function transitionFunction(d, i, a) {
+ var v = b.call(this, d, i);
+ return v == null
+ ? a != "" && d3_transitionRemove
+ : a != v && interpolate(a, v);
+ }
+
+ function transitionString(d, i, a) {
+ return a != b && interpolate(a, b);
+ }
+
+ return typeof b === "function" ? transitionFunction
+ : b == null ? d3_transitionNull
+ : (b += "", transitionString);
+}
+
+var d3_transitionPrototype = [],
+ d3_transitionNextId = 0,
+ d3_transitionId = 0,
+ d3_transitionDefaultDelay = 0,
+ d3_transitionDefaultDuration = 250,
+ d3_transitionDefaultEase = d3.ease("cubic-in-out"),
+ d3_transitionDelay = d3_transitionDefaultDelay,
+ d3_transitionDuration = d3_transitionDefaultDuration,
+ d3_transitionEase = d3_transitionDefaultEase;
+
+d3_transitionPrototype.call = d3_selectionPrototype.call;
+
+d3.transition = function(selection) {
+ return arguments.length
+ ? (d3_transitionId ? selection.transition() : selection)
+ : d3_selectionRoot.transition();
+};
+
+d3.transition.prototype = d3_transitionPrototype;
+d3_transitionPrototype.select = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selector(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ subgroups.push(subgroup = []);
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) {
+ if ("__data__" in node.node) subnode.__data__ = node.node.__data__;
+ subgroup.push({node: subnode, delay: node.delay, duration: node.duration});
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+
+ return d3_transition(subgroups, this.id, this.time).ease(this.ease());
+};
+d3_transitionPrototype.selectAll = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnodes,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subnodes = selector.call(node.node, node.node.__data__, i);
+ subgroups.push(subgroup = []);
+ for (var k = -1, o = subnodes.length; ++k < o;) {
+ subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration});
+ }
+ }
+ }
+ }
+
+ return d3_transition(subgroups, this.id, this.time).ease(this.ease());
+};
+d3_transitionPrototype.attr = function(name, value) {
+ return this.attrTween(name, d3_transitionTween(name, value));
+};
+
+d3_transitionPrototype.attrTween = function(nameNS, tween) {
+ var name = d3.ns.qualify(nameNS);
+
+ function attrTween(d, i) {
+ var f = tween.call(this, d, i, this.getAttribute(name));
+ return f === d3_transitionRemove
+ ? (this.removeAttribute(name), null)
+ : f && function(t) { this.setAttribute(name, f(t)); };
+ }
+
+ function attrTweenNS(d, i) {
+ var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
+ return f === d3_transitionRemove
+ ? (this.removeAttributeNS(name.space, name.local), null)
+ : f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); };
+ }
+
+ return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
+};
+d3_transitionPrototype.style = function(name, value, priority) {
+ if (arguments.length < 3) priority = "";
+ return this.styleTween(name, d3_transitionTween(name, value), priority);
+};
+
+d3_transitionPrototype.styleTween = function(name, tween, priority) {
+ if (arguments.length < 3) priority = "";
+ return this.tween("style." + name, function(d, i) {
+ var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
+ return f === d3_transitionRemove
+ ? (this.style.removeProperty(name), null)
+ : f && function(t) { this.style.setProperty(name, f(t), priority); };
+ });
+};
+d3_transitionPrototype.text = function(value) {
+ return this.tween("text", function(d, i) {
+ this.textContent = typeof value === "function"
+ ? value.call(this, d, i)
+ : value;
+ });
+};
+d3_transitionPrototype.remove = function() {
+ return this.each("end.transition", function() {
+ var p;
+ if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
+ });
+};
+d3_transitionPrototype.delay = function(value) {
+ var groups = this;
+ return groups.each(typeof value === "function"
+ ? function(d, i, j) { groups[j][i].delay = value.apply(this, arguments) | 0; }
+ : (value = value | 0, function(d, i, j) { groups[j][i].delay = value; }));
+};
+d3_transitionPrototype.duration = function(value) {
+ var groups = this;
+ return groups.each(typeof value === "function"
+ ? function(d, i, j) { groups[j][i].duration = Math.max(1, value.apply(this, arguments) | 0); }
+ : (value = Math.max(1, value | 0), function(d, i, j) { groups[j][i].duration = value; }));
+};
+function d3_transition_each(callback) {
+ var id = d3_transitionId,
+ ease = d3_transitionEase,
+ delay = d3_transitionDelay,
+ duration = d3_transitionDuration;
+
+ d3_transitionId = this.id;
+ d3_transitionEase = this.ease();
+ for (var j = 0, m = this.length; j < m; j++) {
+ for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+ var node = group[i];
+ if (node) {
+ d3_transitionDelay = this[j][i].delay;
+ d3_transitionDuration = this[j][i].duration;
+ callback.call(node = node.node, node.__data__, i, j);
+ }
+ }
+ }
+
+ d3_transitionId = id;
+ d3_transitionEase = ease;
+ d3_transitionDelay = delay;
+ d3_transitionDuration = duration;
+ return this;
+}
+d3_transitionPrototype.transition = function() {
+ return this.select(d3_this);
+};
+var d3_timer_queue = null,
+ d3_timer_interval, // is an interval (or frame) active?
+ d3_timer_timeout; // is a timeout active?
+
+// The timer will continue to fire until callback returns true.
+d3.timer = function(callback, delay, then) {
+ var found = false,
+ t0,
+ t1 = d3_timer_queue;
+
+ if (arguments.length < 3) {
+ if (arguments.length < 2) delay = 0;
+ else if (!isFinite(delay)) return;
+ then = Date.now();
+ }
+
+ // See if the callback's already in the queue.
+ while (t1) {
+ if (t1.callback === callback) {
+ t1.then = then;
+ t1.delay = delay;
+ found = true;
+ break;
+ }
+ t0 = t1;
+ t1 = t1.next;
+ }
+
+ // Otherwise, add the callback to the queue.
+ if (!found) d3_timer_queue = {
+ callback: callback,
+ then: then,
+ delay: delay,
+ next: d3_timer_queue
+ };
+
+ // Start animatin'!
+ if (!d3_timer_interval) {
+ d3_timer_timeout = clearTimeout(d3_timer_timeout);
+ d3_timer_interval = 1;
+ d3_timer_frame(d3_timer_step);
+ }
+}
+
+function d3_timer_step() {
+ var elapsed,
+ now = Date.now(),
+ t1 = d3_timer_queue;
+
+ while (t1) {
+ elapsed = now - t1.then;
+ if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);
+ t1 = t1.next;
+ }
+
+ var delay = d3_timer_flush() - now;
+ if (delay > 24) {
+ if (isFinite(delay)) {
+ clearTimeout(d3_timer_timeout);
+ d3_timer_timeout = setTimeout(d3_timer_step, delay);
+ }
+ d3_timer_interval = 0;
+ } else {
+ d3_timer_interval = 1;
+ d3_timer_frame(d3_timer_step);
+ }
+}
+
+d3.timer.flush = function() {
+ var elapsed,
+ now = Date.now(),
+ t1 = d3_timer_queue;
+
+ while (t1) {
+ elapsed = now - t1.then;
+ if (!t1.delay) t1.flush = t1.callback(elapsed);
+ t1 = t1.next;
+ }
+
+ d3_timer_flush();
+};
+
+// Flush after callbacks, to avoid concurrent queue modification.
+function d3_timer_flush() {
+ var t0 = null,
+ t1 = d3_timer_queue,
+ then = Infinity;
+ while (t1) {
+ if (t1.flush) {
+ t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
+ } else {
+ then = Math.min(then, t1.then + t1.delay);
+ t1 = (t0 = t1).next;
+ }
+ }
+ return then;
+}
+
+var d3_timer_frame = window.requestAnimationFrame
+ || window.webkitRequestAnimationFrame
+ || window.mozRequestAnimationFrame
+ || window.oRequestAnimationFrame
+ || window.msRequestAnimationFrame
+ || function(callback) { setTimeout(callback, 17); };
+d3.transform = function(string) {
+ var g = document.createElementNS(d3.ns.prefix.svg, "g"),
+ identity = {a: 1, b: 0, c: 0, d: 1, e: 0, f: 0};
+ return (d3.transform = function(string) {
+ g.setAttribute("transform", string);
+ var t = g.transform.baseVal.consolidate();
+ return new d3_transform(t ? t.matrix : identity);
+ })(string);
+};
+
+// Compute x-scale and normalize the first row.
+// Compute shear and make second row orthogonal to first.
+// Compute y-scale and normalize the second row.
+// Finally, compute the rotation.
+function d3_transform(m) {
+ var r0 = [m.a, m.b],
+ r1 = [m.c, m.d],
+ kx = d3_transformNormalize(r0),
+ kz = d3_transformDot(r0, r1),
+ ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
+ if (r0[0] * r1[1] < r1[0] * r0[1]) {
+ r0[0] *= -1;
+ r0[1] *= -1;
+ kx *= -1;
+ kz *= -1;
+ }
+ this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees;
+ this.translate = [m.e, m.f];
+ this.scale = [kx, ky];
+ this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0;
+};
+
+d3_transform.prototype.toString = function() {
+ return "translate(" + this.translate
+ + ")rotate(" + this.rotate
+ + ")skewX(" + this.skew
+ + ")scale(" + this.scale
+ + ")";
+};
+
+function d3_transformDot(a, b) {
+ return a[0] * b[0] + a[1] * b[1];
+}
+
+function d3_transformNormalize(a) {
+ var k = Math.sqrt(d3_transformDot(a, a));
+ if (k) {
+ a[0] /= k;
+ a[1] /= k;
+ }
+ return k;
+}
+
+function d3_transformCombine(a, b, k) {
+ a[0] += k * b[0];
+ a[1] += k * b[1];
+ return a;
+}
+
+var d3_transformDegrees = 180 / Math.PI;
+d3.mouse = function(container) {
+ return d3_mousePoint(container, d3_eventSource());
+};
+
+// https://bugs.webkit.org/show_bug.cgi?id=44083
+var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
+
+function d3_mousePoint(container, e) {
+ var svg = container.ownerSVGElement || container;
+ if (svg.createSVGPoint) {
+ var point = svg.createSVGPoint();
+ if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) {
+ svg = d3.select(document.body)
+ .append("svg")
+ .style("position", "absolute")
+ .style("top", 0)
+ .style("left", 0);
+ var ctm = svg[0][0].getScreenCTM();
+ d3_mouse_bug44083 = !(ctm.f || ctm.e);
+ svg.remove();
+ }
+ if (d3_mouse_bug44083) {
+ point.x = e.pageX;
+ point.y = e.pageY;
+ } else {
+ point.x = e.clientX;
+ point.y = e.clientY;
+ }
+ point = point.matrixTransform(container.getScreenCTM().inverse());
+ return [point.x, point.y];
+ }
+ var rect = container.getBoundingClientRect();
+ return [e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop];
+};
+d3.touches = function(container, touches) {
+ if (arguments.length < 2) touches = d3_eventSource().touches;
+ return touches ? d3_array(touches).map(function(touch) {
+ var point = d3_mousePoint(container, touch);
+ point.identifier = touch.identifier;
+ return point;
+ }) : [];
+};
+function d3_noop() {}
+d3.scale = {};
+
+function d3_scaleExtent(domain) {
+ var start = domain[0], stop = domain[domain.length - 1];
+ return start < stop ? [start, stop] : [stop, start];
+}
+
+function d3_scaleRange(scale) {
+ return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
+}
+function d3_scale_nice(domain, nice) {
+ var i0 = 0,
+ i1 = domain.length - 1,
+ x0 = domain[i0],
+ x1 = domain[i1],
+ dx;
+
+ if (x1 < x0) {
+ dx = i0; i0 = i1; i1 = dx;
+ dx = x0; x0 = x1; x1 = dx;
+ }
+
+ if (dx = x1 - x0) {
+ nice = nice(dx);
+ domain[i0] = nice.floor(x0);
+ domain[i1] = nice.ceil(x1);
+ }
+
+ return domain;
+}
+
+function d3_scale_niceDefault() {
+ return Math;
+}
+d3.scale.linear = function() {
+ return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false);
+};
+
+function d3_scale_linear(domain, range, interpolate, clamp) {
+ var output,
+ input;
+
+ function rescale() {
+ var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear,
+ uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
+ output = linear(domain, range, uninterpolate, interpolate);
+ input = linear(range, domain, uninterpolate, d3.interpolate);
+ return scale;
+ }
+
+ function scale(x) {
+ return output(x);
+ }
+
+ // Note: requires range is coercible to number!
+ scale.invert = function(y) {
+ return input(y);
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = x.map(Number);
+ return rescale();
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ return rescale();
+ };
+
+ scale.rangeRound = function(x) {
+ return scale.range(x).interpolate(d3.interpolateRound);
+ };
+
+ scale.clamp = function(x) {
+ if (!arguments.length) return clamp;
+ clamp = x;
+ return rescale();
+ };
+
+ scale.interpolate = function(x) {
+ if (!arguments.length) return interpolate;
+ interpolate = x;
+ return rescale();
+ };
+
+ scale.ticks = function(m) {
+ return d3_scale_linearTicks(domain, m);
+ };
+
+ scale.tickFormat = function(m) {
+ return d3_scale_linearTickFormat(domain, m);
+ };
+
+ scale.nice = function() {
+ d3_scale_nice(domain, d3_scale_linearNice);
+ return rescale();
+ };
+
+ scale.copy = function() {
+ return d3_scale_linear(domain, range, interpolate, clamp);
+ };
+
+ return rescale();
+}
+
+function d3_scale_linearRebind(scale, linear) {
+ return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+}
+
+function d3_scale_linearNice(dx) {
+ dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
+ return {
+ floor: function(x) { return Math.floor(x / dx) * dx; },
+ ceil: function(x) { return Math.ceil(x / dx) * dx; }
+ };
+}
+
+function d3_scale_linearTickRange(domain, m) {
+ var extent = d3_scaleExtent(domain),
+ span = extent[1] - extent[0],
+ step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)),
+ err = m / span * step;
+
+ // Filter ticks to get closer to the desired count.
+ if (err <= .15) step *= 10;
+ else if (err <= .35) step *= 5;
+ else if (err <= .75) step *= 2;
+
+ // Round start and stop values to step interval.
+ extent[0] = Math.ceil(extent[0] / step) * step;
+ extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive
+ extent[2] = step;
+ return extent;
+}
+
+function d3_scale_linearTicks(domain, m) {
+ return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
+}
+
+function d3_scale_linearTickFormat(domain, m) {
+ return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f");
+}
+function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
+ var u = uninterpolate(domain[0], domain[1]),
+ i = interpolate(range[0], range[1]);
+ return function(x) {
+ return i(u(x));
+ };
+}
+function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
+ var u = [],
+ i = [],
+ j = 0,
+ k = Math.min(domain.length, range.length) - 1;
+
+ // Handle descending domains.
+ if (domain[k] < domain[0]) {
+ domain = domain.slice().reverse();
+ range = range.slice().reverse();
+ }
+
+ while (++j <= k) {
+ u.push(uninterpolate(domain[j - 1], domain[j]));
+ i.push(interpolate(range[j - 1], range[j]));
+ }
+
+ return function(x) {
+ var j = d3.bisect(domain, x, 1, k) - 1;
+ return i[j](u[j](x));
+ };
+}
+d3.scale.log = function() {
+ return d3_scale_log(d3.scale.linear(), d3_scale_logp);
+};
+
+function d3_scale_log(linear, log) {
+ var pow = log.pow;
+
+ function scale(x) {
+ return linear(log(x));
+ }
+
+ scale.invert = function(x) {
+ return pow(linear.invert(x));
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return linear.domain().map(pow);
+ log = x[0] < 0 ? d3_scale_logn : d3_scale_logp;
+ pow = log.pow;
+ linear.domain(x.map(log));
+ return scale;
+ };
+
+ scale.nice = function() {
+ linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault));
+ return scale;
+ };
+
+ scale.ticks = function() {
+ var extent = d3_scaleExtent(linear.domain()),
+ ticks = [];
+ if (extent.every(isFinite)) {
+ var i = Math.floor(extent[0]),
+ j = Math.ceil(extent[1]),
+ u = pow(extent[0]),
+ v = pow(extent[1]);
+ if (log === d3_scale_logn) {
+ ticks.push(pow(i));
+ for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);
+ } else {
+ for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
+ ticks.push(pow(i));
+ }
+ for (i = 0; ticks[i] < u; i++) {} // strip small values
+ for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values
+ ticks = ticks.slice(i, j);
+ }
+ return ticks;
+ };
+
+ scale.tickFormat = function(n, format) {
+ if (arguments.length < 2) format = d3_scale_logFormat;
+ if (arguments.length < 1) return format;
+ var k = n / scale.ticks().length,
+ f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil),
+ e;
+ return function(d) {
+ return d / pow(f(log(d) + e)) < k ? format(d) : "";
+ };
+ };
+
+ scale.copy = function() {
+ return d3_scale_log(linear.copy(), log);
+ };
+
+ return d3_scale_linearRebind(scale, linear);
+}
+
+var d3_scale_logFormat = d3.format(".0e");
+
+function d3_scale_logp(x) {
+ return Math.log(x < 0 ? 0 : x) / Math.LN10;
+}
+
+function d3_scale_logn(x) {
+ return -Math.log(x > 0 ? 0 : -x) / Math.LN10;
+}
+
+d3_scale_logp.pow = function(x) {
+ return Math.pow(10, x);
+};
+
+d3_scale_logn.pow = function(x) {
+ return -Math.pow(10, -x);
+};
+d3.scale.pow = function() {
+ return d3_scale_pow(d3.scale.linear(), 1);
+};
+
+function d3_scale_pow(linear, exponent) {
+ var powp = d3_scale_powPow(exponent),
+ powb = d3_scale_powPow(1 / exponent);
+
+ function scale(x) {
+ return linear(powp(x));
+ }
+
+ scale.invert = function(x) {
+ return powb(linear.invert(x));
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return linear.domain().map(powb);
+ linear.domain(x.map(powp));
+ return scale;
+ };
+
+ scale.ticks = function(m) {
+ return d3_scale_linearTicks(scale.domain(), m);
+ };
+
+ scale.tickFormat = function(m) {
+ return d3_scale_linearTickFormat(scale.domain(), m);
+ };
+
+ scale.nice = function() {
+ return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
+ };
+
+ scale.exponent = function(x) {
+ if (!arguments.length) return exponent;
+ var domain = scale.domain();
+ powp = d3_scale_powPow(exponent = x);
+ powb = d3_scale_powPow(1 / exponent);
+ return scale.domain(domain);
+ };
+
+ scale.copy = function() {
+ return d3_scale_pow(linear.copy(), exponent);
+ };
+
+ return d3_scale_linearRebind(scale, linear);
+}
+
+function d3_scale_powPow(e) {
+ return function(x) {
+ return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
+ };
+}
+d3.scale.sqrt = function() {
+ return d3.scale.pow().exponent(.5);
+};
+d3.scale.ordinal = function() {
+ return d3_scale_ordinal([], {t: "range", x: []});
+};
+
+function d3_scale_ordinal(domain, ranger) {
+ var index,
+ range,
+ rangeBand;
+
+ function scale(x) {
+ return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length];
+ }
+
+ function steps(start, step) {
+ return d3.range(domain.length).map(function(i) { return start + step * i; });
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = [];
+ index = new d3_Map;
+ var i = -1, n = x.length, xi;
+ while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
+ return scale[ranger.t](ranger.x, ranger.p);
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ rangeBand = 0;
+ ranger = {t: "range", x: x};
+ return scale;
+ };
+
+ scale.rangePoints = function(x, padding) {
+ if (arguments.length < 2) padding = 0;
+ var start = x[0],
+ stop = x[1],
+ step = (stop - start) / (domain.length - 1 + padding);
+ range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);
+ rangeBand = 0;
+ ranger = {t: "rangePoints", x: x, p: padding};
+ return scale;
+ };
+
+ scale.rangeBands = function(x, padding) {
+ if (arguments.length < 2) padding = 0;
+ var reverse = x[1] < x[0],
+ start = x[reverse - 0],
+ stop = x[1 - reverse],
+ step = (stop - start) / (domain.length + padding);
+ range = steps(start + step * padding, step);
+ if (reverse) range.reverse();
+ rangeBand = step * (1 - padding);
+ ranger = {t: "rangeBands", x: x, p: padding};
+ return scale;
+ };
+
+ scale.rangeRoundBands = function(x, padding) {
+ if (arguments.length < 2) padding = 0;
+ var reverse = x[1] < x[0],
+ start = x[reverse - 0],
+ stop = x[1 - reverse],
+ step = Math.floor((stop - start) / (domain.length + padding)),
+ error = stop - start - (domain.length - padding) * step;
+ range = steps(start + Math.round(error / 2), step);
+ if (reverse) range.reverse();
+ rangeBand = Math.round(step * (1 - padding));
+ ranger = {t: "rangeRoundBands", x: x, p: padding};
+ return scale;
+ };
+
+ scale.rangeBand = function() {
+ return rangeBand;
+ };
+
+ scale.rangeExtent = function() {
+ return d3_scaleExtent(ranger.x);
+ };
+
+ scale.copy = function() {
+ return d3_scale_ordinal(domain, ranger);
+ };
+
+ return scale.domain(domain);
+}
+/*
+ * This product includes color specifications and designs developed by Cynthia
+ * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information.
+ */
+
+d3.scale.category10 = function() {
+ return d3.scale.ordinal().range(d3_category10);
+};
+
+d3.scale.category20 = function() {
+ return d3.scale.ordinal().range(d3_category20);
+};
+
+d3.scale.category20b = function() {
+ return d3.scale.ordinal().range(d3_category20b);
+};
+
+d3.scale.category20c = function() {
+ return d3.scale.ordinal().range(d3_category20c);
+};
+
+var d3_category10 = [
+ "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd",
+ "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf"
+];
+
+var d3_category20 = [
+ "#1f77b4", "#aec7e8",
+ "#ff7f0e", "#ffbb78",
+ "#2ca02c", "#98df8a",
+ "#d62728", "#ff9896",
+ "#9467bd", "#c5b0d5",
+ "#8c564b", "#c49c94",
+ "#e377c2", "#f7b6d2",
+ "#7f7f7f", "#c7c7c7",
+ "#bcbd22", "#dbdb8d",
+ "#17becf", "#9edae5"
+];
+
+var d3_category20b = [
+ "#393b79", "#5254a3", "#6b6ecf", "#9c9ede",
+ "#637939", "#8ca252", "#b5cf6b", "#cedb9c",
+ "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94",
+ "#843c39", "#ad494a", "#d6616b", "#e7969c",
+ "#7b4173", "#a55194", "#ce6dbd", "#de9ed6"
+];
+
+var d3_category20c = [
+ "#3182bd", "#6baed6", "#9ecae1", "#c6dbef",
+ "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2",
+ "#31a354", "#74c476", "#a1d99b", "#c7e9c0",
+ "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb",
+ "#636363", "#969696", "#bdbdbd", "#d9d9d9"
+];
+d3.scale.quantile = function() {
+ return d3_scale_quantile([], []);
+};
+
+function d3_scale_quantile(domain, range) {
+ var thresholds;
+
+ function rescale() {
+ var k = 0,
+ n = domain.length,
+ q = range.length;
+ thresholds = [];
+ while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
+ return scale;
+ }
+
+ function scale(x) {
+ if (isNaN(x = +x)) return NaN;
+ return range[d3.bisect(thresholds, x)];
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending);
+ return rescale();
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ return rescale();
+ };
+
+ scale.quantiles = function() {
+ return thresholds;
+ };
+
+ scale.copy = function() {
+ return d3_scale_quantile(domain, range); // copy on write!
+ };
+
+ return rescale();
+}
+d3.scale.quantize = function() {
+ return d3_scale_quantize(0, 1, [0, 1]);
+};
+
+function d3_scale_quantize(x0, x1, range) {
+ var kx, i;
+
+ function scale(x) {
+ return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
+ }
+
+ function rescale() {
+ kx = range.length / (x1 - x0);
+ i = range.length - 1;
+ return scale;
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return [x0, x1];
+ x0 = +x[0];
+ x1 = +x[x.length - 1];
+ return rescale();
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ return rescale();
+ };
+
+ scale.copy = function() {
+ return d3_scale_quantize(x0, x1, range); // copy on write
+ };
+
+ return rescale();
+}
+d3.scale.identity = function() {
+ return d3_scale_identity([0, 1]);
+};
+
+function d3_scale_identity(domain) {
+
+ function identity(x) { return +x; }
+
+ identity.invert = identity;
+
+ identity.domain = identity.range = function(x) {
+ if (!arguments.length) return domain;
+ domain = x.map(identity);
+ return identity;
+ };
+
+ identity.ticks = function(m) {
+ return d3_scale_linearTicks(domain, m);
+ };
+
+ identity.tickFormat = function(m) {
+ return d3_scale_linearTickFormat(domain, m);
+ };
+
+ identity.copy = function() {
+ return d3_scale_identity(domain);
+ };
+
+ return identity;
+}
+d3.svg = {};
+d3.svg.arc = function() {
+ var innerRadius = d3_svg_arcInnerRadius,
+ outerRadius = d3_svg_arcOuterRadius,
+ startAngle = d3_svg_arcStartAngle,
+ endAngle = d3_svg_arcEndAngle;
+
+ function arc() {
+ var r0 = innerRadius.apply(this, arguments),
+ r1 = outerRadius.apply(this, arguments),
+ a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset,
+ a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset,
+ da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0),
+ df = da < Math.PI ? "0" : "1",
+ c0 = Math.cos(a0),
+ s0 = Math.sin(a0),
+ c1 = Math.cos(a1),
+ s1 = Math.sin(a1);
+ return da >= d3_svg_arcMax
+ ? (r0
+ ? "M0," + r1
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
+ + "M0," + r0
+ + "A" + r0 + "," + r0 + " 0 1,0 0," + (-r0)
+ + "A" + r0 + "," + r0 + " 0 1,0 0," + r0
+ + "Z"
+ : "M0," + r1
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
+ + "Z")
+ : (r0
+ ? "M" + r1 * c0 + "," + r1 * s0
+ + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
+ + "L" + r0 * c1 + "," + r0 * s1
+ + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0
+ + "Z"
+ : "M" + r1 * c0 + "," + r1 * s0
+ + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
+ + "L0,0"
+ + "Z");
+ }
+
+ arc.innerRadius = function(v) {
+ if (!arguments.length) return innerRadius;
+ innerRadius = d3.functor(v);
+ return arc;
+ };
+
+ arc.outerRadius = function(v) {
+ if (!arguments.length) return outerRadius;
+ outerRadius = d3.functor(v);
+ return arc;
+ };
+
+ arc.startAngle = function(v) {
+ if (!arguments.length) return startAngle;
+ startAngle = d3.functor(v);
+ return arc;
+ };
+
+ arc.endAngle = function(v) {
+ if (!arguments.length) return endAngle;
+ endAngle = d3.functor(v);
+ return arc;
+ };
+
+ arc.centroid = function() {
+ var r = (innerRadius.apply(this, arguments)
+ + outerRadius.apply(this, arguments)) / 2,
+ a = (startAngle.apply(this, arguments)
+ + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
+ return [Math.cos(a) * r, Math.sin(a) * r];
+ };
+
+ return arc;
+};
+
+var d3_svg_arcOffset = -Math.PI / 2,
+ d3_svg_arcMax = 2 * Math.PI - 1e-6;
+
+function d3_svg_arcInnerRadius(d) {
+ return d.innerRadius;
+}
+
+function d3_svg_arcOuterRadius(d) {
+ return d.outerRadius;
+}
+
+function d3_svg_arcStartAngle(d) {
+ return d.startAngle;
+}
+
+function d3_svg_arcEndAngle(d) {
+ return d.endAngle;
+}
+function d3_svg_line(projection) {
+ var x = d3_svg_lineX,
+ y = d3_svg_lineY,
+ interpolate = d3_svg_lineInterpolatorDefault,
+ interpolator = d3_svg_lineInterpolators.get(interpolate),
+ tension = .7;
+
+ function line(d) {
+ return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension);
+ }
+
+ line.x = function(v) {
+ if (!arguments.length) return x;
+ x = v;
+ return line;
+ };
+
+ line.y = function(v) {
+ if (!arguments.length) return y;
+ y = v;
+ return line;
+ };
+
+ line.interpolate = function(v) {
+ if (!arguments.length) return interpolate;
+ if (!d3_svg_lineInterpolators.has(v += "")) v = d3_svg_lineInterpolatorDefault;
+ interpolator = d3_svg_lineInterpolators.get(interpolate = v);
+ return line;
+ };
+
+ line.tension = function(v) {
+ if (!arguments.length) return tension;
+ tension = v;
+ return line;
+ };
+
+ return line;
+}
+
+d3.svg.line = function() {
+ return d3_svg_line(Object);
+};
+
+// Converts the specified array of data into an array of points
+// (x-y tuples), by evaluating the specified `x` and `y` functions on each
+// data point. The `this` context of the evaluated functions is the specified
+// "self" object; each function is passed the current datum and index.
+function d3_svg_linePoints(self, d, x, y) {
+ var points = [],
+ i = -1,
+ n = d.length,
+ fx = typeof x === "function",
+ fy = typeof y === "function",
+ value;
+ if (fx && fy) {
+ while (++i < n) points.push([
+ x.call(self, value = d[i], i),
+ y.call(self, value, i)
+ ]);
+ } else if (fx) {
+ while (++i < n) points.push([x.call(self, d[i], i), y]);
+ } else if (fy) {
+ while (++i < n) points.push([x, y.call(self, d[i], i)]);
+ } else {
+ while (++i < n) points.push([x, y]);
+ }
+ return points;
+}
+
+// The default `x` property, which references d[0].
+function d3_svg_lineX(d) {
+ return d[0];
+}
+
+// The default `y` property, which references d[1].
+function d3_svg_lineY(d) {
+ return d[1];
+}
+
+var d3_svg_lineInterpolatorDefault = "linear";
+
+// The various interpolators supported by the `line` class.
+var d3_svg_lineInterpolators = d3.map({
+ "linear": d3_svg_lineLinear,
+ "step-before": d3_svg_lineStepBefore,
+ "step-after": d3_svg_lineStepAfter,
+ "basis": d3_svg_lineBasis,
+ "basis-open": d3_svg_lineBasisOpen,
+ "basis-closed": d3_svg_lineBasisClosed,
+ "bundle": d3_svg_lineBundle,
+ "cardinal": d3_svg_lineCardinal,
+ "cardinal-open": d3_svg_lineCardinalOpen,
+ "cardinal-closed": d3_svg_lineCardinalClosed,
+ "monotone": d3_svg_lineMonotone
+});
+
+// Linear interpolation; generates "L" commands.
+function d3_svg_lineLinear(points) {
+ var i = 0,
+ n = points.length,
+ p = points[0],
+ path = [p[0], ",", p[1]];
+ while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]);
+ return path.join("");
+}
+
+// Step interpolation; generates "H" and "V" commands.
+function d3_svg_lineStepBefore(points) {
+ var i = 0,
+ n = points.length,
+ p = points[0],
+ path = [p[0], ",", p[1]];
+ while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
+ return path.join("");
+}
+
+// Step interpolation; generates "H" and "V" commands.
+function d3_svg_lineStepAfter(points) {
+ var i = 0,
+ n = points.length,
+ p = points[0],
+ path = [p[0], ",", p[1]];
+ while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
+ return path.join("");
+}
+
+// Open cardinal spline interpolation; generates "C" commands.
+function d3_svg_lineCardinalOpen(points, tension) {
+ return points.length < 4
+ ? d3_svg_lineLinear(points)
+ : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1),
+ d3_svg_lineCardinalTangents(points, tension));
+}
+
+// Closed cardinal spline interpolation; generates "C" commands.
+function d3_svg_lineCardinalClosed(points, tension) {
+ return points.length < 3
+ ? d3_svg_lineLinear(points)
+ : points[0] + d3_svg_lineHermite((points.push(points[0]), points),
+ d3_svg_lineCardinalTangents([points[points.length - 2]]
+ .concat(points, [points[1]]), tension));
+}
+
+// Cardinal spline interpolation; generates "C" commands.
+function d3_svg_lineCardinal(points, tension, closed) {
+ return points.length < 3
+ ? d3_svg_lineLinear(points)
+ : points[0] + d3_svg_lineHermite(points,
+ d3_svg_lineCardinalTangents(points, tension));
+}
+
+// Hermite spline construction; generates "C" commands.
+function d3_svg_lineHermite(points, tangents) {
+ if (tangents.length < 1
+ || (points.length != tangents.length
+ && points.length != tangents.length + 2)) {
+ return d3_svg_lineLinear(points);
+ }
+
+ var quad = points.length != tangents.length,
+ path = "",
+ p0 = points[0],
+ p = points[1],
+ t0 = tangents[0],
+ t = t0,
+ pi = 1;
+
+ if (quad) {
+ path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3)
+ + "," + p[0] + "," + p[1];
+ p0 = points[1];
+ pi = 2;
+ }
+
+ if (tangents.length > 1) {
+ t = tangents[1];
+ p = points[pi];
+ pi++;
+ path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1])
+ + "," + (p[0] - t[0]) + "," + (p[1] - t[1])
+ + "," + p[0] + "," + p[1];
+ for (var i = 2; i < tangents.length; i++, pi++) {
+ p = points[pi];
+ t = tangents[i];
+ path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1])
+ + "," + p[0] + "," + p[1];
+ }
+ }
+
+ if (quad) {
+ var lp = points[pi];
+ path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3)
+ + "," + lp[0] + "," + lp[1];
+ }
+
+ return path;
+}
+
+// Generates tangents for a cardinal spline.
+function d3_svg_lineCardinalTangents(points, tension) {
+ var tangents = [],
+ a = (1 - tension) / 2,
+ p0,
+ p1 = points[0],
+ p2 = points[1],
+ i = 1,
+ n = points.length;
+ while (++i < n) {
+ p0 = p1;
+ p1 = p2;
+ p2 = points[i];
+ tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]);
+ }
+ return tangents;
+}
+
+// B-spline interpolation; generates "C" commands.
+function d3_svg_lineBasis(points) {
+ if (points.length < 3) return d3_svg_lineLinear(points);
+ var i = 1,
+ n = points.length,
+ pi = points[0],
+ x0 = pi[0],
+ y0 = pi[1],
+ px = [x0, x0, x0, (pi = points[1])[0]],
+ py = [y0, y0, y0, pi[1]],
+ path = [x0, ",", y0];
+ d3_svg_lineBasisBezier(path, px, py);
+ while (++i < n) {
+ pi = points[i];
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ i = -1;
+ while (++i < 2) {
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ return path.join("");
+}
+
+// Open B-spline interpolation; generates "C" commands.
+function d3_svg_lineBasisOpen(points) {
+ if (points.length < 4) return d3_svg_lineLinear(points);
+ var path = [],
+ i = -1,
+ n = points.length,
+ pi,
+ px = [0],
+ py = [0];
+ while (++i < 3) {
+ pi = points[i];
+ px.push(pi[0]);
+ py.push(pi[1]);
+ }
+ path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px)
+ + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
+ --i; while (++i < n) {
+ pi = points[i];
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ return path.join("");
+}
+
+// Closed B-spline interpolation; generates "C" commands.
+function d3_svg_lineBasisClosed(points) {
+ var path,
+ i = -1,
+ n = points.length,
+ m = n + 4,
+ pi,
+ px = [],
+ py = [];
+ while (++i < 4) {
+ pi = points[i % n];
+ px.push(pi[0]);
+ py.push(pi[1]);
+ }
+ path = [
+ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",",
+ d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)
+ ];
+ --i; while (++i < m) {
+ pi = points[i % n];
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ return path.join("");
+}
+
+function d3_svg_lineBundle(points, tension) {
+ var n = points.length - 1,
+ x0 = points[0][0],
+ y0 = points[0][1],
+ dx = points[n][0] - x0,
+ dy = points[n][1] - y0,
+ i = -1,
+ p,
+ t;
+ while (++i <= n) {
+ p = points[i];
+ t = i / n;
+ p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
+ p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
+ }
+ return d3_svg_lineBasis(points);
+}
+
+// Returns the dot product of the given four-element vectors.
+function d3_svg_lineDot4(a, b) {
+ return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
+}
+
+// Matrix to transform basis (b-spline) control points to bezier
+// control points. Derived from FvD 11.2.8.
+var d3_svg_lineBasisBezier1 = [0, 2/3, 1/3, 0],
+ d3_svg_lineBasisBezier2 = [0, 1/3, 2/3, 0],
+ d3_svg_lineBasisBezier3 = [0, 1/6, 2/3, 1/6];
+
+// Pushes a "C" Bézier curve onto the specified path array, given the
+// two specified four-element arrays which define the control points.
+function d3_svg_lineBasisBezier(path, x, y) {
+ path.push(
+ "C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
+}
+
+// Computes the slope from points p0 to p1.
+function d3_svg_lineSlope(p0, p1) {
+ return (p1[1] - p0[1]) / (p1[0] - p0[0]);
+}
+
+// Compute three-point differences for the given points.
+// http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference
+function d3_svg_lineFiniteDifferences(points) {
+ var i = 0,
+ j = points.length - 1,
+ m = [],
+ p0 = points[0],
+ p1 = points[1],
+ d = m[0] = d3_svg_lineSlope(p0, p1);
+ while (++i < j) {
+ m[i] = d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]));
+ }
+ m[i] = d;
+ return m;
+}
+
+// Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite
+// interpolation. Returns an array of tangent vectors. For details, see
+// http://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+function d3_svg_lineMonotoneTangents(points) {
+ var tangents = [],
+ d,
+ a,
+ b,
+ s,
+ m = d3_svg_lineFiniteDifferences(points),
+ i = -1,
+ j = points.length - 1;
+
+ // The first two steps are done by computing finite-differences:
+ // 1. Compute the slopes of the secant lines between successive points.
+ // 2. Initialize the tangents at every point as the average of the secants.
+
+ // Then, for each segment…
+ while (++i < j) {
+ d = d3_svg_lineSlope(points[i], points[i + 1]);
+
+ // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set
+ // mk = m{k + 1} = 0 as the spline connecting these points must be flat to
+ // preserve monotonicity. Ignore step 4 and 5 for those k.
+
+ if (Math.abs(d) < 1e-6) {
+ m[i] = m[i + 1] = 0;
+ } else {
+ // 4. Let ak = mk / dk and bk = m{k + 1} / dk.
+ a = m[i] / d;
+ b = m[i + 1] / d;
+
+ // 5. Prevent overshoot and ensure monotonicity by restricting the
+ // magnitude of vector <ak, bk> to a circle of radius 3.
+ s = a * a + b * b;
+ if (s > 9) {
+ s = d * 3 / Math.sqrt(s);
+ m[i] = s * a;
+ m[i + 1] = s * b;
+ }
+ }
+ }
+
+ // Compute the normalized tangent vector from the slopes. Note that if x is
+ // not monotonic, it's possible that the slope will be infinite, so we protect
+ // against NaN by setting the coordinate to zero.
+ i = -1; while (++i <= j) {
+ s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0])
+ / (6 * (1 + m[i] * m[i]));
+ tangents.push([s || 0, m[i] * s || 0]);
+ }
+
+ return tangents;
+}
+
+function d3_svg_lineMonotone(points) {
+ return points.length < 3
+ ? d3_svg_lineLinear(points)
+ : points[0] +
+ d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
+}
+d3.svg.line.radial = function() {
+ var line = d3_svg_line(d3_svg_lineRadial);
+ line.radius = line.x, delete line.x;
+ line.angle = line.y, delete line.y;
+ return line;
+};
+
+function d3_svg_lineRadial(points) {
+ var point,
+ i = -1,
+ n = points.length,
+ r,
+ a;
+ while (++i < n) {
+ point = points[i];
+ r = point[0];
+ a = point[1] + d3_svg_arcOffset;
+ point[0] = r * Math.cos(a);
+ point[1] = r * Math.sin(a);
+ }
+ return points;
+}
+function d3_svg_area(projection) {
+ var x0 = d3_svg_lineX,
+ x1 = d3_svg_lineX,
+ y0 = 0,
+ y1 = d3_svg_lineY,
+ interpolate,
+ i0,
+ i1,
+ tension = .7;
+
+ function area(d) {
+ if (d.length < 1) return null;
+ var points0 = d3_svg_linePoints(this, d, x0, y0),
+ points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1);
+ return "M" + i0(projection(points1), tension)
+ + "L" + i1(projection(points0.reverse()), tension)
+ + "Z";
+ }
+
+ area.x = function(x) {
+ if (!arguments.length) return x1;
+ x0 = x1 = x;
+ return area;
+ };
+
+ area.x0 = function(x) {
+ if (!arguments.length) return x0;
+ x0 = x;
+ return area;
+ };
+
+ area.x1 = function(x) {
+ if (!arguments.length) return x1;
+ x1 = x;
+ return area;
+ };
+
+ area.y = function(y) {
+ if (!arguments.length) return y1;
+ y0 = y1 = y;
+ return area;
+ };
+
+ area.y0 = function(y) {
+ if (!arguments.length) return y0;
+ y0 = y;
+ return area;
+ };
+
+ area.y1 = function(y) {
+ if (!arguments.length) return y1;
+ y1 = y;
+ return area;
+ };
+
+ area.interpolate = function(x) {
+ if (!arguments.length) return interpolate;
+ if (!d3_svg_lineInterpolators.has(x += "")) x = d3_svg_lineInterpolatorDefault;
+ i0 = d3_svg_lineInterpolators.get(interpolate = x);
+ i1 = i0.reverse || i0;
+ return area;
+ };
+
+ area.tension = function(x) {
+ if (!arguments.length) return tension;
+ tension = x;
+ return area;
+ };
+
+ return area.interpolate("linear");
+}
+
+d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
+d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
+
+d3.svg.area = function() {
+ return d3_svg_area(Object);
+};
+
+function d3_svg_areaX(points) {
+ return function(d, i) {
+ return points[i][0];
+ };
+}
+
+function d3_svg_areaY(points) {
+ return function(d, i) {
+ return points[i][1];
+ };
+}
+d3.svg.area.radial = function() {
+ var area = d3_svg_area(d3_svg_lineRadial);
+ area.radius = area.x, delete area.x;
+ area.innerRadius = area.x0, delete area.x0;
+ area.outerRadius = area.x1, delete area.x1;
+ area.angle = area.y, delete area.y;
+ area.startAngle = area.y0, delete area.y0;
+ area.endAngle = area.y1, delete area.y1;
+ return area;
+};
+d3.svg.chord = function() {
+ var source = d3_svg_chordSource,
+ target = d3_svg_chordTarget,
+ radius = d3_svg_chordRadius,
+ startAngle = d3_svg_arcStartAngle,
+ endAngle = d3_svg_arcEndAngle;
+
+ // TODO Allow control point to be customized.
+
+ function chord(d, i) {
+ var s = subgroup(this, source, d, i),
+ t = subgroup(this, target, d, i);
+ return "M" + s.p0
+ + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t)
+ ? curve(s.r, s.p1, s.r, s.p0)
+ : curve(s.r, s.p1, t.r, t.p0)
+ + arc(t.r, t.p1, t.a1 - t.a0)
+ + curve(t.r, t.p1, s.r, s.p0))
+ + "Z";
+ }
+
+ function subgroup(self, f, d, i) {
+ var subgroup = f.call(self, d, i),
+ r = radius.call(self, subgroup, i),
+ a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset,
+ a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
+ return {
+ r: r,
+ a0: a0,
+ a1: a1,
+ p0: [r * Math.cos(a0), r * Math.sin(a0)],
+ p1: [r * Math.cos(a1), r * Math.sin(a1)]
+ };
+ }
+
+ function equals(a, b) {
+ return a.a0 == b.a0 && a.a1 == b.a1;
+ }
+
+ function arc(r, p, a) {
+ return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p;
+ }
+
+ function curve(r0, p0, r1, p1) {
+ return "Q 0,0 " + p1;
+ }
+
+ chord.radius = function(v) {
+ if (!arguments.length) return radius;
+ radius = d3.functor(v);
+ return chord;
+ };
+
+ chord.source = function(v) {
+ if (!arguments.length) return source;
+ source = d3.functor(v);
+ return chord;
+ };
+
+ chord.target = function(v) {
+ if (!arguments.length) return target;
+ target = d3.functor(v);
+ return chord;
+ };
+
+ chord.startAngle = function(v) {
+ if (!arguments.length) return startAngle;
+ startAngle = d3.functor(v);
+ return chord;
+ };
+
+ chord.endAngle = function(v) {
+ if (!arguments.length) return endAngle;
+ endAngle = d3.functor(v);
+ return chord;
+ };
+
+ return chord;
+};
+
+function d3_svg_chordSource(d) {
+ return d.source;
+}
+
+function d3_svg_chordTarget(d) {
+ return d.target;
+}
+
+function d3_svg_chordRadius(d) {
+ return d.radius;
+}
+
+function d3_svg_chordStartAngle(d) {
+ return d.startAngle;
+}
+
+function d3_svg_chordEndAngle(d) {
+ return d.endAngle;
+}
+d3.svg.diagonal = function() {
+ var source = d3_svg_chordSource,
+ target = d3_svg_chordTarget,
+ projection = d3_svg_diagonalProjection;
+
+ function diagonal(d, i) {
+ var p0 = source.call(this, d, i),
+ p3 = target.call(this, d, i),
+ m = (p0.y + p3.y) / 2,
+ p = [p0, {x: p0.x, y: m}, {x: p3.x, y: m}, p3];
+ p = p.map(projection);
+ return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
+ }
+
+ diagonal.source = function(x) {
+ if (!arguments.length) return source;
+ source = d3.functor(x);
+ return diagonal;
+ };
+
+ diagonal.target = function(x) {
+ if (!arguments.length) return target;
+ target = d3.functor(x);
+ return diagonal;
+ };
+
+ diagonal.projection = function(x) {
+ if (!arguments.length) return projection;
+ projection = x;
+ return diagonal;
+ };
+
+ return diagonal;
+};
+
+function d3_svg_diagonalProjection(d) {
+ return [d.x, d.y];
+}
+d3.svg.diagonal.radial = function() {
+ var diagonal = d3.svg.diagonal(),
+ projection = d3_svg_diagonalProjection,
+ projection_ = diagonal.projection;
+
+ diagonal.projection = function(x) {
+ return arguments.length
+ ? projection_(d3_svg_diagonalRadialProjection(projection = x))
+ : projection;
+ };
+
+ return diagonal;
+};
+
+function d3_svg_diagonalRadialProjection(projection) {
+ return function() {
+ var d = projection.apply(this, arguments),
+ r = d[0],
+ a = d[1] + d3_svg_arcOffset;
+ return [r * Math.cos(a), r * Math.sin(a)];
+ };
+}
+d3.svg.mouse = d3.mouse;
+d3.svg.touches = d3.touches;
+d3.svg.symbol = function() {
+ var type = d3_svg_symbolType,
+ size = d3_svg_symbolSize;
+
+ function symbol(d, i) {
+ return (d3_svg_symbols.get(type.call(this, d, i))
+ || d3_svg_symbolCircle)
+ (size.call(this, d, i));
+ }
+
+ symbol.type = function(x) {
+ if (!arguments.length) return type;
+ type = d3.functor(x);
+ return symbol;
+ };
+
+ // size of symbol in square pixels
+ symbol.size = function(x) {
+ if (!arguments.length) return size;
+ size = d3.functor(x);
+ return symbol;
+ };
+
+ return symbol;
+};
+
+function d3_svg_symbolSize() {
+ return 64;
+}
+
+function d3_svg_symbolType() {
+ return "circle";
+}
+
+function d3_svg_symbolCircle(size) {
+ var r = Math.sqrt(size / Math.PI);
+ return "M0," + r
+ + "A" + r + "," + r + " 0 1,1 0," + (-r)
+ + "A" + r + "," + r + " 0 1,1 0," + r
+ + "Z";
+}
+
+// TODO cross-diagonal?
+var d3_svg_symbols = d3.map({
+ "circle": d3_svg_symbolCircle,
+ "cross": function(size) {
+ var r = Math.sqrt(size / 5) / 2;
+ return "M" + -3 * r + "," + -r
+ + "H" + -r
+ + "V" + -3 * r
+ + "H" + r
+ + "V" + -r
+ + "H" + 3 * r
+ + "V" + r
+ + "H" + r
+ + "V" + 3 * r
+ + "H" + -r
+ + "V" + r
+ + "H" + -3 * r
+ + "Z";
+ },
+ "diamond": function(size) {
+ var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)),
+ rx = ry * d3_svg_symbolTan30;
+ return "M0," + -ry
+ + "L" + rx + ",0"
+ + " 0," + ry
+ + " " + -rx + ",0"
+ + "Z";
+ },
+ "square": function(size) {
+ var r = Math.sqrt(size) / 2;
+ return "M" + -r + "," + -r
+ + "L" + r + "," + -r
+ + " " + r + "," + r
+ + " " + -r + "," + r
+ + "Z";
+ },
+ "triangle-down": function(size) {
+ var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
+ ry = rx * d3_svg_symbolSqrt3 / 2;
+ return "M0," + ry
+ + "L" + rx +"," + -ry
+ + " " + -rx + "," + -ry
+ + "Z";
+ },
+ "triangle-up": function(size) {
+ var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
+ ry = rx * d3_svg_symbolSqrt3 / 2;
+ return "M0," + -ry
+ + "L" + rx +"," + ry
+ + " " + -rx + "," + ry
+ + "Z";
+ }
+});
+
+d3.svg.symbolTypes = d3_svg_symbols.keys();
+
+var d3_svg_symbolSqrt3 = Math.sqrt(3),
+ d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
+d3.svg.axis = function() {
+ var scale = d3.scale.linear(),
+ orient = "bottom",
+ tickMajorSize = 6,
+ tickMinorSize = 6,
+ tickEndSize = 6,
+ tickPadding = 3,
+ tickArguments_ = [10],
+ tickValues = null,
+ tickFormat_,
+ tickSubdivide = 0;
+
+ function axis(g) {
+ g.each(function() {
+ var g = d3.select(this);
+
+ // Ticks, or domain values for ordinal scales.
+ var ticks = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain()) : tickValues,
+ tickFormat = tickFormat_ == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String) : tickFormat_;
+
+ // Minor ticks.
+ var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide),
+ subtick = g.selectAll(".minor").data(subticks, String),
+ subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6),
+ subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(),
+ subtickUpdate = d3.transition(subtick).style("opacity", 1);
+
+ // Major ticks.
+ var tick = g.selectAll("g").data(ticks, String),
+ tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6),
+ tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(),
+ tickUpdate = d3.transition(tick).style("opacity", 1),
+ tickTransform;
+
+ // Domain.
+ var range = d3_scaleRange(scale),
+ path = g.selectAll(".domain").data([0]),
+ pathEnter = path.enter().append("path").attr("class", "domain"),
+ pathUpdate = d3.transition(path);
+
+ // Stash a snapshot of the new scale, and retrieve the old snapshot.
+ var scale1 = scale.copy(),
+ scale0 = this.__chart__ || scale1;
+ this.__chart__ = scale1;
+
+ tickEnter.append("line").attr("class", "tick");
+ tickEnter.append("text");
+ tickUpdate.select("text").text(tickFormat);
+
+ switch (orient) {
+ case "bottom": {
+ tickTransform = d3_svg_axisX;
+ subtickEnter.attr("y2", tickMinorSize);
+ subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);
+ tickEnter.select("line").attr("y2", tickMajorSize);
+ tickEnter.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding);
+ tickUpdate.select("line").attr("x2", 0).attr("y2", tickMajorSize);
+ tickUpdate.select("text").attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding).attr("dy", ".71em").attr("text-anchor", "middle");
+ pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
+ break;
+ }
+ case "top": {
+ tickTransform = d3_svg_axisX;
+ subtickEnter.attr("y2", -tickMinorSize);
+ subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);
+ tickEnter.select("line").attr("y2", -tickMajorSize);
+ tickEnter.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
+ tickUpdate.select("line").attr("x2", 0).attr("y2", -tickMajorSize);
+ tickUpdate.select("text").attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("dy", "0em").attr("text-anchor", "middle");
+ pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
+ break;
+ }
+ case "left": {
+ tickTransform = d3_svg_axisY;
+ subtickEnter.attr("x2", -tickMinorSize);
+ subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);
+ tickEnter.select("line").attr("x2", -tickMajorSize);
+ tickEnter.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
+ tickUpdate.select("line").attr("x2", -tickMajorSize).attr("y2", 0);
+ tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "end");
+ pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
+ break;
+ }
+ case "right": {
+ tickTransform = d3_svg_axisY;
+ subtickEnter.attr("x2", tickMinorSize);
+ subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);
+ tickEnter.select("line").attr("x2", tickMajorSize);
+ tickEnter.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding);
+ tickUpdate.select("line").attr("x2", tickMajorSize).attr("y2", 0);
+ tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "start");
+ pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
+ break;
+ }
+ }
+
+ // For quantitative scales:
+ // - enter new ticks from the old scale
+ // - exit old ticks to the new scale
+ if (scale.ticks) {
+ tickEnter.call(tickTransform, scale0);
+ tickUpdate.call(tickTransform, scale1);
+ tickExit.call(tickTransform, scale1);
+ subtickEnter.call(tickTransform, scale0);
+ subtickUpdate.call(tickTransform, scale1);
+ subtickExit.call(tickTransform, scale1);
+ }
+
+ // For ordinal scales:
+ // - any entering ticks are undefined in the old scale
+ // - any exiting ticks are undefined in the new scale
+ // Therefore, we only need to transition updating ticks.
+ else {
+ var dx = scale1.rangeBand() / 2, x = function(d) { return scale1(d) + dx; };
+ tickEnter.call(tickTransform, x);
+ tickUpdate.call(tickTransform, x);
+ }
+ });
+ }
+
+ axis.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = x;
+ return axis;
+ };
+
+ axis.orient = function(x) {
+ if (!arguments.length) return orient;
+ orient = x;
+ return axis;
+ };
+
+ axis.ticks = function() {
+ if (!arguments.length) return tickArguments_;
+ tickArguments_ = arguments;
+ return axis;
+ };
+
+ axis.tickValues = function(x) {
+ if (!arguments.length) return tickValues;
+ tickValues = x;
+ return axis;
+ };
+
+ axis.tickFormat = function(x) {
+ if (!arguments.length) return tickFormat_;
+ tickFormat_ = x;
+ return axis;
+ };
+
+ axis.tickSize = function(x, y, z) {
+ if (!arguments.length) return tickMajorSize;
+ var n = arguments.length - 1;
+ tickMajorSize = +x;
+ tickMinorSize = n > 1 ? +y : tickMajorSize;
+ tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
+ return axis;
+ };
+
+ axis.tickPadding = function(x) {
+ if (!arguments.length) return tickPadding;
+ tickPadding = +x;
+ return axis;
+ };
+
+ axis.tickSubdivide = function(x) {
+ if (!arguments.length) return tickSubdivide;
+ tickSubdivide = +x;
+ return axis;
+ };
+
+ return axis;
+};
+
+function d3_svg_axisX(selection, x) {
+ selection.attr("transform", function(d) { return "translate(" + x(d) + ",0)"; });
+}
+
+function d3_svg_axisY(selection, y) {
+ selection.attr("transform", function(d) { return "translate(0," + y(d) + ")"; });
+}
+
+function d3_svg_axisSubdivide(scale, ticks, m) {
+ subticks = [];
+ if (m && ticks.length > 1) {
+ var extent = d3_scaleExtent(scale.domain()),
+ subticks,
+ i = -1,
+ n = ticks.length,
+ d = (ticks[1] - ticks[0]) / ++m,
+ j,
+ v;
+ while (++i < n) {
+ for (j = m; --j > 0;) {
+ if ((v = +ticks[i] - j * d) >= extent[0]) {
+ subticks.push(v);
+ }
+ }
+ }
+ for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1];) {
+ subticks.push(v);
+ }
+ }
+ return subticks;
+}
+d3.svg.brush = function() {
+ var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"),
+ x = null, // x-scale, optional
+ y = null, // y-scale, optional
+ resizes = d3_svg_brushResizes[0],
+ extent = [[0, 0], [0, 0]], // [x0, y0], [x1, y1], in pixels (integers)
+ extentDomain; // the extent in data space, lazily created
+
+ function brush(g) {
+ g.each(function() {
+ var g = d3.select(this),
+ bg = g.selectAll(".background").data([0]),
+ fg = g.selectAll(".extent").data([0]),
+ tz = g.selectAll(".resize").data(resizes, String),
+ e;
+
+ // Prepare the brush container for events.
+ g
+ .style("pointer-events", "all")
+ .on("mousedown.brush", brushstart)
+ .on("touchstart.brush", brushstart);
+
+ // An invisible, mouseable area for starting a new brush.
+ bg.enter().append("rect")
+ .attr("class", "background")
+ .style("visibility", "hidden")
+ .style("cursor", "crosshair");
+
+ // The visible brush extent; style this as you like!
+ fg.enter().append("rect")
+ .attr("class", "extent")
+ .style("cursor", "move");
+
+ // More invisible rects for resizing the extent.
+ tz.enter().append("g")
+ .attr("class", function(d) { return "resize " + d; })
+ .style("cursor", function(d) { return d3_svg_brushCursor[d]; })
+ .append("rect")
+ .attr("x", function(d) { return /[ew]$/.test(d) ? -3 : null; })
+ .attr("y", function(d) { return /^[ns]/.test(d) ? -3 : null; })
+ .attr("width", 6)
+ .attr("height", 6)
+ .style("visibility", "hidden");
+
+ // Show or hide the resizers.
+ tz.style("display", brush.empty() ? "none" : null);
+
+ // Remove any superfluous resizers.
+ tz.exit().remove();
+
+ // Initialize the background to fill the defined range.
+ // If the range isn't defined, you can post-process.
+ if (x) {
+ e = d3_scaleRange(x);
+ bg.attr("x", e[0]).attr("width", e[1] - e[0]);
+ redrawX(g);
+ }
+ if (y) {
+ e = d3_scaleRange(y);
+ bg.attr("y", e[0]).attr("height", e[1] - e[0]);
+ redrawY(g);
+ }
+ redraw(g);
+ });
+ }
+
+ function redraw(g) {
+ g.selectAll(".resize").attr("transform", function(d) {
+ return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")";
+ });
+ }
+
+ function redrawX(g) {
+ g.select(".extent").attr("x", extent[0][0]);
+ g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]);
+ }
+
+ function redrawY(g) {
+ g.select(".extent").attr("y", extent[0][1]);
+ g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]);
+ }
+
+ function brushstart() {
+ var target = this,
+ eventTarget = d3.select(d3.event.target),
+ event_ = event.of(target, arguments),
+ g = d3.select(target),
+ resizing = eventTarget.datum(),
+ resizingX = !/^(n|s)$/.test(resizing) && x,
+ resizingY = !/^(e|w)$/.test(resizing) && y,
+ dragging = eventTarget.classed("extent"),
+ center,
+ origin = mouse(),
+ offset;
+
+ var w = d3.select(window)
+ .on("mousemove.brush", brushmove)
+ .on("mouseup.brush", brushend)
+ .on("touchmove.brush", brushmove)
+ .on("touchend.brush", brushend)
+ .on("keydown.brush", keydown)
+ .on("keyup.brush", keyup);
+
+ // If the extent was clicked on, drag rather than brush;
+ // store the point between the mouse and extent origin instead.
+ if (dragging) {
+ origin[0] = extent[0][0] - origin[0];
+ origin[1] = extent[0][1] - origin[1];
+ }
+
+ // If a resizer was clicked on, record which side is to be resized.
+ // Also, set the origin to the opposite side.
+ else if (resizing) {
+ var ex = +/w$/.test(resizing),
+ ey = +/^n/.test(resizing);
+ offset = [extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1]];
+ origin[0] = extent[ex][0];
+ origin[1] = extent[ey][1];
+ }
+
+ // If the ALT key is down when starting a brush, the center is at the mouse.
+ else if (d3.event.altKey) center = origin.slice();
+
+ // Propagate the active cursor to the body for the drag duration.
+ g.style("pointer-events", "none").selectAll(".resize").style("display", null);
+ d3.select("body").style("cursor", eventTarget.style("cursor"));
+
+ // Notify listeners.
+ event_({type: "brushstart"});
+ brushmove();
+ d3_eventCancel();
+
+ function mouse() {
+ var touches = d3.event.changedTouches;
+ return touches ? d3.touches(target, touches)[0] : d3.mouse(target);
+ }
+
+ function keydown() {
+ if (d3.event.keyCode == 32) {
+ if (!dragging) {
+ center = null;
+ origin[0] -= extent[1][0];
+ origin[1] -= extent[1][1];
+ dragging = 2;
+ }
+ d3_eventCancel();
+ }
+ }
+
+ function keyup() {
+ if (d3.event.keyCode == 32 && dragging == 2) {
+ origin[0] += extent[1][0];
+ origin[1] += extent[1][1];
+ dragging = 0;
+ d3_eventCancel();
+ }
+ }
+
+ function brushmove() {
+ var point = mouse(),
+ moved = false;
+
+ // Preserve the offset for thick resizers.
+ if (offset) {
+ point[0] += offset[0];
+ point[1] += offset[1];
+ }
+
+ if (!dragging) {
+
+ // If needed, determine the center from the current extent.
+ if (d3.event.altKey) {
+ if (!center) center = [(extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2];
+
+ // Update the origin, for when the ALT key is released.
+ origin[0] = extent[+(point[0] < center[0])][0];
+ origin[1] = extent[+(point[1] < center[1])][1];
+ }
+
+ // When the ALT key is released, we clear the center.
+ else center = null;
+ }
+
+ // Update the brush extent for each dimension.
+ if (resizingX && move1(point, x, 0)) {
+ redrawX(g);
+ moved = true;
+ }
+ if (resizingY && move1(point, y, 1)) {
+ redrawY(g);
+ moved = true;
+ }
+
+ // Final redraw and notify listeners.
+ if (moved) {
+ redraw(g);
+ event_({type: "brush", mode: dragging ? "move" : "resize"});
+ }
+ }
+
+ function move1(point, scale, i) {
+ var range = d3_scaleRange(scale),
+ r0 = range[0],
+ r1 = range[1],
+ position = origin[i],
+ size = extent[1][i] - extent[0][i],
+ min,
+ max;
+
+ // When dragging, reduce the range by the extent size and position.
+ if (dragging) {
+ r0 -= position;
+ r1 -= size + position;
+ }
+
+ // Clamp the point so that the extent fits within the range extent.
+ min = Math.max(r0, Math.min(r1, point[i]));
+
+ // Compute the new extent bounds.
+ if (dragging) {
+ max = (min += position) + size;
+ } else {
+
+ // If the ALT key is pressed, then preserve the center of the extent.
+ if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
+
+ // Compute the min and max of the position and point.
+ if (position < min) {
+ max = min;
+ min = position;
+ } else {
+ max = position;
+ }
+ }
+
+ // Update the stored bounds.
+ if (extent[0][i] !== min || extent[1][i] !== max) {
+ extentDomain = null;
+ extent[0][i] = min;
+ extent[1][i] = max;
+ return true;
+ }
+ }
+
+ function brushend() {
+ brushmove();
+
+ // reset the cursor styles
+ g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
+ d3.select("body").style("cursor", null);
+
+ w .on("mousemove.brush", null)
+ .on("mouseup.brush", null)
+ .on("touchmove.brush", null)
+ .on("touchend.brush", null)
+ .on("keydown.brush", null)
+ .on("keyup.brush", null);
+
+ event_({type: "brushend"});
+ d3_eventCancel();
+ }
+ }
+
+ brush.x = function(z) {
+ if (!arguments.length) return x;
+ x = z;
+ resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore!
+ return brush;
+ };
+
+ brush.y = function(z) {
+ if (!arguments.length) return y;
+ y = z;
+ resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore!
+ return brush;
+ };
+
+ brush.extent = function(z) {
+ var x0, x1, y0, y1, t;
+
+ // Invert the pixel extent to data-space.
+ if (!arguments.length) {
+ z = extentDomain || extent;
+ if (x) {
+ x0 = z[0][0], x1 = z[1][0];
+ if (!extentDomain) {
+ x0 = extent[0][0], x1 = extent[1][0];
+ if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
+ if (x1 < x0) t = x0, x0 = x1, x1 = t;
+ }
+ }
+ if (y) {
+ y0 = z[0][1], y1 = z[1][1];
+ if (!extentDomain) {
+ y0 = extent[0][1], y1 = extent[1][1];
+ if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
+ if (y1 < y0) t = y0, y0 = y1, y1 = t;
+ }
+ }
+ return x && y ? [[x0, y0], [x1, y1]] : x ? [x0, x1] : y && [y0, y1];
+ }
+
+ // Scale the data-space extent to pixels.
+ extentDomain = [[0, 0], [0, 0]];
+ if (x) {
+ x0 = z[0], x1 = z[1];
+ if (y) x0 = x0[0], x1 = x1[0];
+ extentDomain[0][0] = x0, extentDomain[1][0] = x1;
+ if (x.invert) x0 = x(x0), x1 = x(x1);
+ if (x1 < x0) t = x0, x0 = x1, x1 = t;
+ extent[0][0] = x0 | 0, extent[1][0] = x1 | 0;
+ }
+ if (y) {
+ y0 = z[0], y1 = z[1];
+ if (x) y0 = y0[1], y1 = y1[1];
+ extentDomain[0][1] = y0, extentDomain[1][1] = y1;
+ if (y.invert) y0 = y(y0), y1 = y(y1);
+ if (y1 < y0) t = y0, y0 = y1, y1 = t;
+ extent[0][1] = y0 | 0, extent[1][1] = y1 | 0;
+ }
+
+ return brush;
+ };
+
+ brush.clear = function() {
+ extentDomain = null;
+ extent[0][0] =
+ extent[0][1] =
+ extent[1][0] =
+ extent[1][1] = 0;
+ return brush;
+ };
+
+ brush.empty = function() {
+ return (x && extent[0][0] === extent[1][0])
+ || (y && extent[0][1] === extent[1][1]);
+ };
+
+ return d3.rebind(brush, event, "on");
+};
+
+var d3_svg_brushCursor = {
+ n: "ns-resize",
+ e: "ew-resize",
+ s: "ns-resize",
+ w: "ew-resize",
+ nw: "nwse-resize",
+ ne: "nesw-resize",
+ se: "nwse-resize",
+ sw: "nesw-resize"
+};
+
+var d3_svg_brushResizes = [
+ ["n", "e", "s", "w", "nw", "ne", "se", "sw"],
+ ["e", "w"],
+ ["n", "s"],
+ []
+];
+d3.behavior = {};
+// TODO Track touch points by identifier.
+
+d3.behavior.drag = function() {
+ var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"),
+ origin = null;
+
+ function drag() {
+ this.on("mousedown.drag", mousedown)
+ .on("touchstart.drag", mousedown);
+ }
+
+ function mousedown() {
+ var target = this,
+ event_ = event.of(target, arguments),
+ eventTarget = d3.event.target,
+ offset,
+ origin_ = point(),
+ moved = 0;
+
+ var w = d3.select(window)
+ .on("mousemove.drag", dragmove)
+ .on("touchmove.drag", dragmove)
+ .on("mouseup.drag", dragend, true)
+ .on("touchend.drag", dragend, true);
+
+ if (origin) {
+ offset = origin.apply(target, arguments);
+ offset = [offset.x - origin_[0], offset.y - origin_[1]];
+ } else {
+ offset = [0, 0];
+ }
+
+ event_({type: "dragstart"});
+
+ function point() {
+ var p = target.parentNode,
+ t = d3.event.changedTouches;
+ return t ? d3.touches(p, t)[0] : d3.mouse(p);
+ }
+
+ function dragmove() {
+ if (!target.parentNode) return dragend(); // target removed from DOM
+
+ var p = point(),
+ dx = p[0] - origin_[0],
+ dy = p[1] - origin_[1];
+
+ moved |= dx | dy;
+ origin_ = p;
+ d3_eventCancel();
+
+ event_({type: "drag", x: p[0] + offset[0], y: p[1] + offset[1], dx: dx, dy: dy});
+ }
+
+ function dragend() {
+ event_({type: "dragend"});
+
+ // if moved, prevent the mouseup (and possibly click) from propagating
+ if (moved) {
+ d3_eventCancel();
+ if (d3.event.target === eventTarget) w.on("click.drag", click, true);
+ }
+
+ w .on("mousemove.drag", null)
+ .on("touchmove.drag", null)
+ .on("mouseup.drag", null)
+ .on("touchend.drag", null);
+ }
+
+ // prevent the subsequent click from propagating (e.g., for anchors)
+ function click() {
+ d3_eventCancel();
+ w.on("click.drag", null);
+ }
+ }
+
+ drag.origin = function(x) {
+ if (!arguments.length) return origin;
+ origin = x;
+ return drag;
+ };
+
+ return d3.rebind(drag, event, "on");
+};
+d3.behavior.zoom = function() {
+ var translate = [0, 0],
+ translate0, // translate when we started zooming (to avoid drift)
+ scale = 1,
+ scale0, // scale when we started touching
+ scaleExtent = d3_behavior_zoomInfinity,
+ event = d3_eventDispatch(zoom, "zoom"),
+ x0,
+ x1,
+ y0,
+ y1,
+ touchtime; // time of last touchstart (to detect double-tap)
+
+ function zoom() {
+ this
+ .on("mousedown.zoom", mousedown)
+ .on("mousewheel.zoom", mousewheel)
+ .on("mousemove.zoom", mousemove)
+ .on("DOMMouseScroll.zoom", mousewheel)
+ .on("dblclick.zoom", dblclick)
+ .on("touchstart.zoom", touchstart)
+ .on("touchmove.zoom", touchmove)
+ .on("touchend.zoom", touchstart);
+ }
+
+ zoom.translate = function(x) {
+ if (!arguments.length) return translate;
+ translate = x.map(Number);
+ return zoom;
+ };
+
+ zoom.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = +x;
+ return zoom;
+ };
+
+ zoom.scaleExtent = function(x) {
+ if (!arguments.length) return scaleExtent;
+ scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number);
+ return zoom;
+ };
+
+ zoom.x = function(z) {
+ if (!arguments.length) return x1;
+ x1 = z;
+ x0 = z.copy();
+ return zoom;
+ };
+
+ zoom.y = function(z) {
+ if (!arguments.length) return y1;
+ y1 = z;
+ y0 = z.copy();
+ return zoom;
+ };
+
+ function location(p) {
+ return [(p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale];
+ }
+
+ function point(l) {
+ return [l[0] * scale + translate[0], l[1] * scale + translate[1]];
+ }
+
+ function scaleTo(s) {
+ scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
+ }
+
+ function translateTo(p, l) {
+ l = point(l);
+ translate[0] += p[0] - l[0];
+ translate[1] += p[1] - l[1];
+ }
+
+ function dispatch(event) {
+ if (x1) x1.domain(x0.range().map(function(x) { return (x - translate[0]) / scale; }).map(x0.invert));
+ if (y1) y1.domain(y0.range().map(function(y) { return (y - translate[1]) / scale; }).map(y0.invert));
+ d3.event.preventDefault();
+ event({type: "zoom", scale: scale, translate: translate});
+ }
+
+ function mousedown() {
+ var target = this,
+ event_ = event.of(target, arguments),
+ eventTarget = d3.event.target,
+ moved = 0,
+ w = d3.select(window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup),
+ l = location(d3.mouse(target));
+
+ window.focus();
+ d3_eventCancel();
+
+ function mousemove() {
+ moved = 1;
+ translateTo(d3.mouse(target), l);
+ dispatch(event_);
+ }
+
+ function mouseup() {
+ if (moved) d3_eventCancel();
+ w.on("mousemove.zoom", null).on("mouseup.zoom", null);
+ if (moved && d3.event.target === eventTarget) w.on("click.zoom", click);
+ }
+
+ function click() {
+ d3_eventCancel();
+ w.on("click.zoom", null);
+ }
+ }
+
+ function mousewheel() {
+ if (!translate0) translate0 = location(d3.mouse(this));
+ scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale);
+ translateTo(d3.mouse(this), translate0);
+ dispatch(event.of(this, arguments));
+ }
+
+ function mousemove() {
+ translate0 = null;
+ }
+
+ function dblclick() {
+ var p = d3.mouse(this), l = location(p);
+ scaleTo(d3.event.shiftKey ? scale / 2 : scale * 2);
+ translateTo(p, l);
+ dispatch(event.of(this, arguments));
+ }
+
+ function touchstart() {
+ var touches = d3.touches(this),
+ now = Date.now();
+
+ scale0 = scale;
+ translate0 = {};
+ touches.forEach(function(t) { translate0[t.identifier] = location(t); });
+ d3_eventCancel();
+
+ if ((touches.length === 1) && (now - touchtime < 500)) { // dbltap
+ var p = touches[0], l = location(touches[0]);
+ scaleTo(scale * 2);
+ translateTo(p, l);
+ dispatch(event.of(this, arguments));
+ }
+ touchtime = now;
+ }
+
+ function touchmove() {
+ var touches = d3.touches(this),
+ p0 = touches[0],
+ l0 = translate0[p0.identifier];
+ if (p1 = touches[1]) {
+ var p1, l1 = translate0[p1.identifier];
+ p0 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2];
+ l0 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2];
+ scaleTo(d3.event.scale * scale0);
+ }
+ translateTo(p0, l0);
+ dispatch(event.of(this, arguments));
+ }
+
+ return d3.rebind(zoom, event, "on");
+};
+
+var d3_behavior_zoomDiv, // for interpreting mousewheel events
+ d3_behavior_zoomInfinity = [0, Infinity]; // default scale extent
+
+function d3_behavior_zoomDelta() {
+
+ // mousewheel events are totally broken!
+ // https://bugs.webkit.org/show_bug.cgi?id=40441
+ // not only that, but Chrome and Safari differ in re. to acceleration!
+ if (!d3_behavior_zoomDiv) {
+ d3_behavior_zoomDiv = d3.select("body").append("div")
+ .style("visibility", "hidden")
+ .style("top", 0)
+ .style("height", 0)
+ .style("width", 0)
+ .style("overflow-y", "scroll")
+ .append("div")
+ .style("height", "2000px")
+ .node().parentNode;
+ }
+
+ var e = d3.event, delta;
+ try {
+ d3_behavior_zoomDiv.scrollTop = 1000;
+ d3_behavior_zoomDiv.dispatchEvent(e);
+ delta = 1000 - d3_behavior_zoomDiv.scrollTop;
+ } catch (error) {
+ delta = e.wheelDelta || (-e.detail * 5);
+ }
+
+ return delta;
+}
+d3.layout = {};
+// Implements hierarchical edge bundling using Holten's algorithm. For each
+// input link, a path is computed that travels through the tree, up the parent
+// hierarchy to the least common ancestor, and then back down to the destination
+// node. Each path is simply an array of nodes.
+d3.layout.bundle = function() {
+ return function(links) {
+ var paths = [],
+ i = -1,
+ n = links.length;
+ while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
+ return paths;
+ };
+};
+
+function d3_layout_bundlePath(link) {
+ var start = link.source,
+ end = link.target,
+ lca = d3_layout_bundleLeastCommonAncestor(start, end),
+ points = [start];
+ while (start !== lca) {
+ start = start.parent;
+ points.push(start);
+ }
+ var k = points.length;
+ while (end !== lca) {
+ points.splice(k, 0, end);
+ end = end.parent;
+ }
+ return points;
+}
+
+function d3_layout_bundleAncestors(node) {
+ var ancestors = [],
+ parent = node.parent;
+ while (parent != null) {
+ ancestors.push(node);
+ node = parent;
+ parent = parent.parent;
+ }
+ ancestors.push(node);
+ return ancestors;
+}
+
+function d3_layout_bundleLeastCommonAncestor(a, b) {
+ if (a === b) return a;
+ var aNodes = d3_layout_bundleAncestors(a),
+ bNodes = d3_layout_bundleAncestors(b),
+ aNode = aNodes.pop(),
+ bNode = bNodes.pop(),
+ sharedNode = null;
+ while (aNode === bNode) {
+ sharedNode = aNode;
+ aNode = aNodes.pop();
+ bNode = bNodes.pop();
+ }
+ return sharedNode;
+}
+d3.layout.chord = function() {
+ var chord = {},
+ chords,
+ groups,
+ matrix,
+ n,
+ padding = 0,
+ sortGroups,
+ sortSubgroups,
+ sortChords;
+
+ function relayout() {
+ var subgroups = {},
+ groupSums = [],
+ groupIndex = d3.range(n),
+ subgroupIndex = [],
+ k,
+ x,
+ x0,
+ i,
+ j;
+
+ chords = [];
+ groups = [];
+
+ // Compute the sum.
+ k = 0, i = -1; while (++i < n) {
+ x = 0, j = -1; while (++j < n) {
+ x += matrix[i][j];
+ }
+ groupSums.push(x);
+ subgroupIndex.push(d3.range(n));
+ k += x;
+ }
+
+ // Sort groups…
+ if (sortGroups) {
+ groupIndex.sort(function(a, b) {
+ return sortGroups(groupSums[a], groupSums[b]);
+ });
+ }
+
+ // Sort subgroups…
+ if (sortSubgroups) {
+ subgroupIndex.forEach(function(d, i) {
+ d.sort(function(a, b) {
+ return sortSubgroups(matrix[i][a], matrix[i][b]);
+ });
+ });
+ }
+
+ // Convert the sum to scaling factor for [0, 2pi].
+ // TODO Allow start and end angle to be specified.
+ // TODO Allow padding to be specified as percentage?
+ k = (2 * Math.PI - padding * n) / k;
+
+ // Compute the start and end angle for each group and subgroup.
+ // Note: Opera has a bug reordering object literal properties!
+ x = 0, i = -1; while (++i < n) {
+ x0 = x, j = -1; while (++j < n) {
+ var di = groupIndex[i],
+ dj = subgroupIndex[di][j],
+ v = matrix[di][dj],
+ a0 = x,
+ a1 = x += v * k;
+ subgroups[di + "-" + dj] = {
+ index: di,
+ subindex: dj,
+ startAngle: a0,
+ endAngle: a1,
+ value: v
+ };
+ }
+ groups.push({
+ index: di,
+ startAngle: x0,
+ endAngle: x,
+ value: (x - x0) / k
+ });
+ x += padding;
+ }
+
+ // Generate chords for each (non-empty) subgroup-subgroup link.
+ i = -1; while (++i < n) {
+ j = i - 1; while (++j < n) {
+ var source = subgroups[i + "-" + j],
+ target = subgroups[j + "-" + i];
+ if (source.value || target.value) {
+ chords.push(source.value < target.value
+ ? {source: target, target: source}
+ : {source: source, target: target});
+ }
+ }
+ }
+
+ if (sortChords) resort();
+ }
+
+ function resort() {
+ chords.sort(function(a, b) {
+ return sortChords(
+ (a.source.value + a.target.value) / 2,
+ (b.source.value + b.target.value) / 2);
+ });
+ }
+
+ chord.matrix = function(x) {
+ if (!arguments.length) return matrix;
+ n = (matrix = x) && matrix.length;
+ chords = groups = null;
+ return chord;
+ };
+
+ chord.padding = function(x) {
+ if (!arguments.length) return padding;
+ padding = x;
+ chords = groups = null;
+ return chord;
+ };
+
+ chord.sortGroups = function(x) {
+ if (!arguments.length) return sortGroups;
+ sortGroups = x;
+ chords = groups = null;
+ return chord;
+ };
+
+ chord.sortSubgroups = function(x) {
+ if (!arguments.length) return sortSubgroups;
+ sortSubgroups = x;
+ chords = null;
+ return chord;
+ };
+
+ chord.sortChords = function(x) {
+ if (!arguments.length) return sortChords;
+ sortChords = x;
+ if (chords) resort();
+ return chord;
+ };
+
+ chord.chords = function() {
+ if (!chords) relayout();
+ return chords;
+ };
+
+ chord.groups = function() {
+ if (!groups) relayout();
+ return groups;
+ };
+
+ return chord;
+};
+// A rudimentary force layout using Gauss-Seidel.
+d3.layout.force = function() {
+ var force = {},
+ event = d3.dispatch("start", "tick", "end"),
+ size = [1, 1],
+ drag,
+ alpha,
+ friction = .9,
+ linkDistance = d3_layout_forceLinkDistance,
+ linkStrength = d3_layout_forceLinkStrength,
+ charge = -30,
+ gravity = .1,
+ theta = .8,
+ interval,
+ nodes = [],
+ links = [],
+ distances,
+ strengths,
+ charges;
+
+ function repulse(node) {
+ return function(quad, x1, y1, x2, y2) {
+ if (quad.point !== node) {
+ var dx = quad.cx - node.x,
+ dy = quad.cy - node.y,
+ dn = 1 / Math.sqrt(dx * dx + dy * dy);
+
+ /* Barnes-Hut criterion. */
+ if ((x2 - x1) * dn < theta) {
+ var k = quad.charge * dn * dn;
+ node.px -= dx * k;
+ node.py -= dy * k;
+ return true;
+ }
+
+ if (quad.point && isFinite(dn)) {
+ var k = quad.pointCharge * dn * dn;
+ node.px -= dx * k;
+ node.py -= dy * k;
+ }
+ }
+ return !quad.charge;
+ };
+ }
+
+ force.tick = function() {
+ // simulated annealing, basically
+ if ((alpha *= .99) < .005) {
+ event.end({type: "end", alpha: alpha = 0});
+ return true;
+ }
+
+ var n = nodes.length,
+ m = links.length,
+ q,
+ i, // current index
+ o, // current object
+ s, // current source
+ t, // current target
+ l, // current distance
+ k, // current force
+ x, // x-distance
+ y; // y-distance
+
+ // gauss-seidel relaxation for links
+ for (i = 0; i < m; ++i) {
+ o = links[i];
+ s = o.source;
+ t = o.target;
+ x = t.x - s.x;
+ y = t.y - s.y;
+ if (l = (x * x + y * y)) {
+ l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
+ x *= l;
+ y *= l;
+ t.x -= x * (k = s.weight / (t.weight + s.weight));
+ t.y -= y * k;
+ s.x += x * (k = 1 - k);
+ s.y += y * k;
+ }
+ }
+
+ // apply gravity forces
+ if (k = alpha * gravity) {
+ x = size[0] / 2;
+ y = size[1] / 2;
+ i = -1; if (k) while (++i < n) {
+ o = nodes[i];
+ o.x += (x - o.x) * k;
+ o.y += (y - o.y) * k;
+ }
+ }
+
+ // compute quadtree center of mass and apply charge forces
+ if (charge) {
+ d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
+ i = -1; while (++i < n) {
+ if (!(o = nodes[i]).fixed) {
+ q.visit(repulse(o));
+ }
+ }
+ }
+
+ // position verlet integration
+ i = -1; while (++i < n) {
+ o = nodes[i];
+ if (o.fixed) {
+ o.x = o.px;
+ o.y = o.py;
+ } else {
+ o.x -= (o.px - (o.px = o.x)) * friction;
+ o.y -= (o.py - (o.py = o.y)) * friction;
+ }
+ }
+
+ event.tick({type: "tick", alpha: alpha});
+ };
+
+ force.nodes = function(x) {
+ if (!arguments.length) return nodes;
+ nodes = x;
+ return force;
+ };
+
+ force.links = function(x) {
+ if (!arguments.length) return links;
+ links = x;
+ return force;
+ };
+
+ force.size = function(x) {
+ if (!arguments.length) return size;
+ size = x;
+ return force;
+ };
+
+ force.linkDistance = function(x) {
+ if (!arguments.length) return linkDistance;
+ linkDistance = d3.functor(x);
+ return force;
+ };
+
+ // For backwards-compatibility.
+ force.distance = force.linkDistance;
+
+ force.linkStrength = function(x) {
+ if (!arguments.length) return linkStrength;
+ linkStrength = d3.functor(x);
+ return force;
+ };
+
+ force.friction = function(x) {
+ if (!arguments.length) return friction;
+ friction = x;
+ return force;
+ };
+
+ force.charge = function(x) {
+ if (!arguments.length) return charge;
+ charge = typeof x === "function" ? x : +x;
+ return force;
+ };
+
+ force.gravity = function(x) {
+ if (!arguments.length) return gravity;
+ gravity = x;
+ return force;
+ };
+
+ force.theta = function(x) {
+ if (!arguments.length) return theta;
+ theta = x;
+ return force;
+ };
+
+ force.alpha = function(x) {
+ if (!arguments.length) return alpha;
+
+ if (alpha) { // if we're already running
+ if (x > 0) alpha = x; // we might keep it hot
+ else alpha = 0; // or, next tick will dispatch "end"
+ } else if (x > 0) { // otherwise, fire it up!
+ event.start({type: "start", alpha: alpha = x});
+ d3.timer(force.tick);
+ }
+
+ return force;
+ };
+
+ force.start = function() {
+ var i,
+ j,
+ n = nodes.length,
+ m = links.length,
+ w = size[0],
+ h = size[1],
+ neighbors,
+ o;
+
+ for (i = 0; i < n; ++i) {
+ (o = nodes[i]).index = i;
+ o.weight = 0;
+ }
+
+ distances = [];
+ strengths = [];
+ for (i = 0; i < m; ++i) {
+ o = links[i];
+ if (typeof o.source == "number") o.source = nodes[o.source];
+ if (typeof o.target == "number") o.target = nodes[o.target];
+ distances[i] = linkDistance.call(this, o, i);
+ strengths[i] = linkStrength.call(this, o, i);
+ ++o.source.weight;
+ ++o.target.weight;
+ }
+
+ for (i = 0; i < n; ++i) {
+ o = nodes[i];
+ if (isNaN(o.x)) o.x = position("x", w);
+ if (isNaN(o.y)) o.y = position("y", h);
+ if (isNaN(o.px)) o.px = o.x;
+ if (isNaN(o.py)) o.py = o.y;
+ }
+
+ charges = [];
+ if (typeof charge === "function") {
+ for (i = 0; i < n; ++i) {
+ charges[i] = +charge.call(this, nodes[i], i);
+ }
+ } else {
+ for (i = 0; i < n; ++i) {
+ charges[i] = charge;
+ }
+ }
+
+ // initialize node position based on first neighbor
+ function position(dimension, size) {
+ var neighbors = neighbor(i),
+ j = -1,
+ m = neighbors.length,
+ x;
+ while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x;
+ return Math.random() * size;
+ }
+
+ // initialize neighbors lazily
+ function neighbor() {
+ if (!neighbors) {
+ neighbors = [];
+ for (j = 0; j < n; ++j) {
+ neighbors[j] = [];
+ }
+ for (j = 0; j < m; ++j) {
+ var o = links[j];
+ neighbors[o.source.index].push(o.target);
+ neighbors[o.target.index].push(o.source);
+ }
+ }
+ return neighbors[i];
+ }
+
+ return force.resume();
+ };
+
+ force.resume = function() {
+ return force.alpha(.1);
+ };
+
+ force.stop = function() {
+ return force.alpha(0);
+ };
+
+ // use `node.call(force.drag)` to make nodes draggable
+ force.drag = function() {
+ if (!drag) drag = d3.behavior.drag()
+ .origin(Object)
+ .on("dragstart", dragstart)
+ .on("drag", d3_layout_forceDrag)
+ .on("dragend", d3_layout_forceDragEnd);
+
+ this.on("mouseover.force", d3_layout_forceDragOver)
+ .on("mouseout.force", d3_layout_forceDragOut)
+ .call(drag);
+ };
+
+ function dragstart(d) {
+ d3_layout_forceDragOver(d3_layout_forceDragNode = d);
+ d3_layout_forceDragForce = force;
+ }
+
+ return d3.rebind(force, event, "on");
+};
+
+var d3_layout_forceDragForce,
+ d3_layout_forceDragNode;
+
+function d3_layout_forceDragOver(d) {
+ d.fixed |= 2;
+}
+
+function d3_layout_forceDragOut(d) {
+ if (d !== d3_layout_forceDragNode) d.fixed &= 1;
+}
+
+function d3_layout_forceDragEnd() {
+ d3_layout_forceDragNode.fixed &= 1;
+ d3_layout_forceDragForce = d3_layout_forceDragNode = null;
+}
+
+function d3_layout_forceDrag() {
+ d3_layout_forceDragNode.px = d3.event.x;
+ d3_layout_forceDragNode.py = d3.event.y;
+ d3_layout_forceDragForce.resume(); // restart annealing
+}
+
+function d3_layout_forceAccumulate(quad, alpha, charges) {
+ var cx = 0,
+ cy = 0;
+ quad.charge = 0;
+ if (!quad.leaf) {
+ var nodes = quad.nodes,
+ n = nodes.length,
+ i = -1,
+ c;
+ while (++i < n) {
+ c = nodes[i];
+ if (c == null) continue;
+ d3_layout_forceAccumulate(c, alpha, charges);
+ quad.charge += c.charge;
+ cx += c.charge * c.cx;
+ cy += c.charge * c.cy;
+ }
+ }
+ if (quad.point) {
+ // jitter internal nodes that are coincident
+ if (!quad.leaf) {
+ quad.point.x += Math.random() - .5;
+ quad.point.y += Math.random() - .5;
+ }
+ var k = alpha * charges[quad.point.index];
+ quad.charge += quad.pointCharge = k;
+ cx += k * quad.point.x;
+ cy += k * quad.point.y;
+ }
+ quad.cx = cx / quad.charge;
+ quad.cy = cy / quad.charge;
+}
+
+function d3_layout_forceLinkDistance(link) {
+ return 20;
+}
+
+function d3_layout_forceLinkStrength(link) {
+ return 1;
+}
+d3.layout.partition = function() {
+ var hierarchy = d3.layout.hierarchy(),
+ size = [1, 1]; // width, height
+
+ function position(node, x, dx, dy) {
+ var children = node.children;
+ node.x = x;
+ node.y = node.depth * dy;
+ node.dx = dx;
+ node.dy = dy;
+ if (children && (n = children.length)) {
+ var i = -1,
+ n,
+ c,
+ d;
+ dx = node.value ? dx / node.value : 0;
+ while (++i < n) {
+ position(c = children[i], x, d = c.value * dx, dy);
+ x += d;
+ }
+ }
+ }
+
+ function depth(node) {
+ var children = node.children,
+ d = 0;
+ if (children && (n = children.length)) {
+ var i = -1,
+ n;
+ while (++i < n) d = Math.max(d, depth(children[i]));
+ }
+ return 1 + d;
+ }
+
+ function partition(d, i) {
+ var nodes = hierarchy.call(this, d, i);
+ position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
+ return nodes;
+ }
+
+ partition.size = function(x) {
+ if (!arguments.length) return size;
+ size = x;
+ return partition;
+ };
+
+ return d3_layout_hierarchyRebind(partition, hierarchy);
+};
+d3.layout.pie = function() {
+ var value = Number,
+ sort = d3_layout_pieSortByValue,
+ startAngle = 0,
+ endAngle = 2 * Math.PI;
+
+ function pie(data, i) {
+
+ // Compute the numeric values for each data element.
+ var values = data.map(function(d, i) { return +value.call(pie, d, i); });
+
+ // Compute the start angle.
+ var a = +(typeof startAngle === "function"
+ ? startAngle.apply(this, arguments)
+ : startAngle);
+
+ // Compute the angular scale factor: from value to radians.
+ var k = ((typeof endAngle === "function"
+ ? endAngle.apply(this, arguments)
+ : endAngle) - startAngle)
+ / d3.sum(values);
+
+ // Optionally sort the data.
+ var index = d3.range(data.length);
+ if (sort != null) index.sort(sort === d3_layout_pieSortByValue
+ ? function(i, j) { return values[j] - values[i]; }
+ : function(i, j) { return sort(data[i], data[j]); });
+
+ // Compute the arcs!
+ // They are stored in the original data's order.
+ var arcs = [];
+ index.forEach(function(i) {
+ arcs[i] = {
+ data: data[i],
+ value: d = values[i],
+ startAngle: a,
+ endAngle: a += d * k
+ };
+ });
+ return arcs;
+ }
+
+ /**
+ * Specifies the value function *x*, which returns a nonnegative numeric value
+ * for each datum. The default value function is `Number`. The value function
+ * is passed two arguments: the current datum and the current index.
+ */
+ pie.value = function(x) {
+ if (!arguments.length) return value;
+ value = x;
+ return pie;
+ };
+
+ /**
+ * Specifies a sort comparison operator *x*. The comparator is passed two data
+ * elements from the data array, a and b; it returns a negative value if a is
+ * less than b, a positive value if a is greater than b, and zero if a equals
+ * b.
+ */
+ pie.sort = function(x) {
+ if (!arguments.length) return sort;
+ sort = x;
+ return pie;
+ };
+
+ /**
+ * Specifies the overall start angle of the pie chart. Defaults to 0. The
+ * start angle can be specified either as a constant or as a function; in the
+ * case of a function, it is evaluated once per array (as opposed to per
+ * element).
+ */
+ pie.startAngle = function(x) {
+ if (!arguments.length) return startAngle;
+ startAngle = x;
+ return pie;
+ };
+
+ /**
+ * Specifies the overall end angle of the pie chart. Defaults to 2π. The
+ * end angle can be specified either as a constant or as a function; in the
+ * case of a function, it is evaluated once per array (as opposed to per
+ * element).
+ */
+ pie.endAngle = function(x) {
+ if (!arguments.length) return endAngle;
+ endAngle = x;
+ return pie;
+ };
+
+ return pie;
+};
+
+var d3_layout_pieSortByValue = {};
+// data is two-dimensional array of x,y; we populate y0
+d3.layout.stack = function() {
+ var values = Object,
+ order = d3_layout_stackOrderDefault,
+ offset = d3_layout_stackOffsetZero,
+ out = d3_layout_stackOut,
+ x = d3_layout_stackX,
+ y = d3_layout_stackY;
+
+ function stack(data, index) {
+
+ // Convert series to canonical two-dimensional representation.
+ var series = data.map(function(d, i) {
+ return values.call(stack, d, i);
+ });
+
+ // Convert each series to canonical [[x,y]] representation.
+ var points = series.map(function(d, i) {
+ return d.map(function(v, i) {
+ return [x.call(stack, v, i), y.call(stack, v, i)];
+ });
+ });
+
+ // Compute the order of series, and permute them.
+ var orders = order.call(stack, points, index);
+ series = d3.permute(series, orders);
+ points = d3.permute(points, orders);
+
+ // Compute the baseline…
+ var offsets = offset.call(stack, points, index);
+
+ // And propagate it to other series.
+ var n = series.length,
+ m = series[0].length,
+ i,
+ j,
+ o;
+ for (j = 0; j < m; ++j) {
+ out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
+ for (i = 1; i < n; ++i) {
+ out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
+ }
+ }
+
+ return data;
+ }
+
+ stack.values = function(x) {
+ if (!arguments.length) return values;
+ values = x;
+ return stack;
+ };
+
+ stack.order = function(x) {
+ if (!arguments.length) return order;
+ order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;
+ return stack;
+ };
+
+ stack.offset = function(x) {
+ if (!arguments.length) return offset;
+ offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;
+ return stack;
+ };
+
+ stack.x = function(z) {
+ if (!arguments.length) return x;
+ x = z;
+ return stack;
+ };
+
+ stack.y = function(z) {
+ if (!arguments.length) return y;
+ y = z;
+ return stack;
+ };
+
+ stack.out = function(z) {
+ if (!arguments.length) return out;
+ out = z;
+ return stack;
+ };
+
+ return stack;
+}
+
+function d3_layout_stackX(d) {
+ return d.x;
+}
+
+function d3_layout_stackY(d) {
+ return d.y;
+}
+
+function d3_layout_stackOut(d, y0, y) {
+ d.y0 = y0;
+ d.y = y;
+}
+
+var d3_layout_stackOrders = d3.map({
+
+ "inside-out": function(data) {
+ var n = data.length,
+ i,
+ j,
+ max = data.map(d3_layout_stackMaxIndex),
+ sums = data.map(d3_layout_stackReduceSum),
+ index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }),
+ top = 0,
+ bottom = 0,
+ tops = [],
+ bottoms = [];
+ for (i = 0; i < n; ++i) {
+ j = index[i];
+ if (top < bottom) {
+ top += sums[j];
+ tops.push(j);
+ } else {
+ bottom += sums[j];
+ bottoms.push(j);
+ }
+ }
+ return bottoms.reverse().concat(tops);
+ },
+
+ "reverse": function(data) {
+ return d3.range(data.length).reverse();
+ },
+
+ "default": d3_layout_stackOrderDefault
+
+});
+
+var d3_layout_stackOffsets = d3.map({
+
+ "silhouette": function(data) {
+ var n = data.length,
+ m = data[0].length,
+ sums = [],
+ max = 0,
+ i,
+ j,
+ o,
+ y0 = [];
+ for (j = 0; j < m; ++j) {
+ for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
+ if (o > max) max = o;
+ sums.push(o);
+ }
+ for (j = 0; j < m; ++j) {
+ y0[j] = (max - sums[j]) / 2;
+ }
+ return y0;
+ },
+
+ "wiggle": function(data) {
+ var n = data.length,
+ x = data[0],
+ m = x.length,
+ max = 0,
+ i,
+ j,
+ k,
+ s1,
+ s2,
+ s3,
+ dx,
+ o,
+ o0,
+ y0 = [];
+ y0[0] = o = o0 = 0;
+ for (j = 1; j < m; ++j) {
+ for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
+ for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
+ for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
+ s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
+ }
+ s2 += s3 * data[i][j][1];
+ }
+ y0[j] = o -= s1 ? s2 / s1 * dx : 0;
+ if (o < o0) o0 = o;
+ }
+ for (j = 0; j < m; ++j) y0[j] -= o0;
+ return y0;
+ },
+
+ "expand": function(data) {
+ var n = data.length,
+ m = data[0].length,
+ k = 1 / n,
+ i,
+ j,
+ o,
+ y0 = [];
+ for (j = 0; j < m; ++j) {
+ for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
+ if (o) for (i = 0; i < n; i++) data[i][j][1] /= o;
+ else for (i = 0; i < n; i++) data[i][j][1] = k;
+ }
+ for (j = 0; j < m; ++j) y0[j] = 0;
+ return y0;
+ },
+
+ "zero": d3_layout_stackOffsetZero
+
+});
+
+function d3_layout_stackOrderDefault(data) {
+ return d3.range(data.length);
+}
+
+function d3_layout_stackOffsetZero(data) {
+ var j = -1,
+ m = data[0].length,
+ y0 = [];
+ while (++j < m) y0[j] = 0;
+ return y0;
+}
+
+function d3_layout_stackMaxIndex(array) {
+ var i = 1,
+ j = 0,
+ v = array[0][1],
+ k,
+ n = array.length;
+ for (; i < n; ++i) {
+ if ((k = array[i][1]) > v) {
+ j = i;
+ v = k;
+ }
+ }
+ return j;
+}
+
+function d3_layout_stackReduceSum(d) {
+ return d.reduce(d3_layout_stackSum, 0);
+}
+
+function d3_layout_stackSum(p, d) {
+ return p + d[1];
+}
+d3.layout.histogram = function() {
+ var frequency = true,
+ valuer = Number,
+ ranger = d3_layout_histogramRange,
+ binner = d3_layout_histogramBinSturges;
+
+ function histogram(data, i) {
+ var bins = [],
+ values = data.map(valuer, this),
+ range = ranger.call(this, values, i),
+ thresholds = binner.call(this, range, values, i),
+ bin,
+ i = -1,
+ n = values.length,
+ m = thresholds.length - 1,
+ k = frequency ? 1 : 1 / n,
+ x;
+
+ // Initialize the bins.
+ while (++i < m) {
+ bin = bins[i] = [];
+ bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
+ bin.y = 0;
+ }
+
+ // Fill the bins, ignoring values outside the range.
+ i = -1; while(++i < n) {
+ x = values[i];
+ if ((x >= range[0]) && (x <= range[1])) {
+ bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
+ bin.y += k;
+ bin.push(data[i]);
+ }
+ }
+
+ return bins;
+ }
+
+ // Specifies how to extract a value from the associated data. The default
+ // value function is `Number`, which is equivalent to the identity function.
+ histogram.value = function(x) {
+ if (!arguments.length) return valuer;
+ valuer = x;
+ return histogram;
+ };
+
+ // Specifies the range of the histogram. Values outside the specified range
+ // will be ignored. The argument `x` may be specified either as a two-element
+ // array representing the minimum and maximum value of the range, or as a
+ // function that returns the range given the array of values and the current
+ // index `i`. The default range is the extent (minimum and maximum) of the
+ // values.
+ histogram.range = function(x) {
+ if (!arguments.length) return ranger;
+ ranger = d3.functor(x);
+ return histogram;
+ };
+
+ // Specifies how to bin values in the histogram. The argument `x` may be
+ // specified as a number, in which case the range of values will be split
+ // uniformly into the given number of bins. Or, `x` may be an array of
+ // threshold values, defining the bins; the specified array must contain the
+ // rightmost (upper) value, thus specifying n + 1 values for n bins. Or, `x`
+ // may be a function which is evaluated, being passed the range, the array of
+ // values, and the current index `i`, returning an array of thresholds. The
+ // default bin function will divide the values into uniform bins using
+ // Sturges' formula.
+ histogram.bins = function(x) {
+ if (!arguments.length) return binner;
+ binner = typeof x === "number"
+ ? function(range) { return d3_layout_histogramBinFixed(range, x); }
+ : d3.functor(x);
+ return histogram;
+ };
+
+ // Specifies whether the histogram's `y` value is a count (frequency) or a
+ // probability (density). The default value is true.
+ histogram.frequency = function(x) {
+ if (!arguments.length) return frequency;
+ frequency = !!x;
+ return histogram;
+ };
+
+ return histogram;
+};
+
+function d3_layout_histogramBinSturges(range, values) {
+ return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
+}
+
+function d3_layout_histogramBinFixed(range, n) {
+ var x = -1,
+ b = +range[0],
+ m = (range[1] - b) / n,
+ f = [];
+ while (++x <= n) f[x] = m * x + b;
+ return f;
+}
+
+function d3_layout_histogramRange(values) {
+ return [d3.min(values), d3.max(values)];
+}
+d3.layout.hierarchy = function() {
+ var sort = d3_layout_hierarchySort,
+ children = d3_layout_hierarchyChildren,
+ value = d3_layout_hierarchyValue;
+
+ // Recursively compute the node depth and value.
+ // Also converts the data representation into a standard hierarchy structure.
+ function recurse(data, depth, nodes) {
+ var childs = children.call(hierarchy, data, depth),
+ node = d3_layout_hierarchyInline ? data : {data: data};
+ node.depth = depth;
+ nodes.push(node);
+ if (childs && (n = childs.length)) {
+ var i = -1,
+ n,
+ c = node.children = [],
+ v = 0,
+ j = depth + 1;
+ while (++i < n) {
+ d = recurse(childs[i], j, nodes);
+ d.parent = node;
+ c.push(d);
+ v += d.value;
+ }
+ if (sort) c.sort(sort);
+ if (value) node.value = v;
+ } else if (value) {
+ node.value = +value.call(hierarchy, data, depth) || 0;
+ }
+ return node;
+ }
+
+ // Recursively re-evaluates the node value.
+ function revalue(node, depth) {
+ var children = node.children,
+ v = 0;
+ if (children && (n = children.length)) {
+ var i = -1,
+ n,
+ j = depth + 1;
+ while (++i < n) v += revalue(children[i], j);
+ } else if (value) {
+ v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0;
+ }
+ if (value) node.value = v;
+ return v;
+ }
+
+ function hierarchy(d) {
+ var nodes = [];
+ recurse(d, 0, nodes);
+ return nodes;
+ }
+
+ hierarchy.sort = function(x) {
+ if (!arguments.length) return sort;
+ sort = x;
+ return hierarchy;
+ };
+
+ hierarchy.children = function(x) {
+ if (!arguments.length) return children;
+ children = x;
+ return hierarchy;
+ };
+
+ hierarchy.value = function(x) {
+ if (!arguments.length) return value;
+ value = x;
+ return hierarchy;
+ };
+
+ // Re-evaluates the `value` property for the specified hierarchy.
+ hierarchy.revalue = function(root) {
+ revalue(root, 0);
+ return root;
+ };
+
+ return hierarchy;
+};
+
+// A method assignment helper for hierarchy subclasses.
+function d3_layout_hierarchyRebind(object, hierarchy) {
+ d3.rebind(object, hierarchy, "sort", "children", "value");
+
+ // Add an alias for links, for convenience.
+ object.links = d3_layout_hierarchyLinks;
+
+ // If the new API is used, enabling inlining.
+ object.nodes = function(d) {
+ d3_layout_hierarchyInline = true;
+ return (object.nodes = object)(d);
+ };
+
+ return object;
+}
+
+function d3_layout_hierarchyChildren(d) {
+ return d.children;
+}
+
+function d3_layout_hierarchyValue(d) {
+ return d.value;
+}
+
+function d3_layout_hierarchySort(a, b) {
+ return b.value - a.value;
+}
+
+// Returns an array source+target objects for the specified nodes.
+function d3_layout_hierarchyLinks(nodes) {
+ return d3.merge(nodes.map(function(parent) {
+ return (parent.children || []).map(function(child) {
+ return {source: parent, target: child};
+ });
+ }));
+}
+
+// For backwards-compatibility, don't enable inlining by default.
+var d3_layout_hierarchyInline = false;
+d3.layout.pack = function() {
+ var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort),
+ size = [1, 1];
+
+ function pack(d, i) {
+ var nodes = hierarchy.call(this, d, i),
+ root = nodes[0];
+
+ // Recursively compute the layout.
+ root.x = 0;
+ root.y = 0;
+ d3_layout_packTree(root);
+
+ // Scale the layout to fit the requested size.
+ var w = size[0],
+ h = size[1],
+ k = 1 / Math.max(2 * root.r / w, 2 * root.r / h);
+ d3_layout_packTransform(root, w / 2, h / 2, k);
+
+ return nodes;
+ }
+
+ pack.size = function(x) {
+ if (!arguments.length) return size;
+ size = x;
+ return pack;
+ };
+
+ return d3_layout_hierarchyRebind(pack, hierarchy);
+};
+
+function d3_layout_packSort(a, b) {
+ return a.value - b.value;
+}
+
+function d3_layout_packInsert(a, b) {
+ var c = a._pack_next;
+ a._pack_next = b;
+ b._pack_prev = a;
+ b._pack_next = c;
+ c._pack_prev = b;
+}
+
+function d3_layout_packSplice(a, b) {
+ a._pack_next = b;
+ b._pack_prev = a;
+}
+
+function d3_layout_packIntersects(a, b) {
+ var dx = b.x - a.x,
+ dy = b.y - a.y,
+ dr = a.r + b.r;
+ return dr * dr - dx * dx - dy * dy > .001; // within epsilon
+}
+
+function d3_layout_packCircle(nodes) {
+ var xMin = Infinity,
+ xMax = -Infinity,
+ yMin = Infinity,
+ yMax = -Infinity,
+ n = nodes.length,
+ a, b, c, j, k;
+
+ function bound(node) {
+ xMin = Math.min(node.x - node.r, xMin);
+ xMax = Math.max(node.x + node.r, xMax);
+ yMin = Math.min(node.y - node.r, yMin);
+ yMax = Math.max(node.y + node.r, yMax);
+ }
+
+ // Create node links.
+ nodes.forEach(d3_layout_packLink);
+
+ // Create first node.
+ a = nodes[0];
+ a.x = -a.r;
+ a.y = 0;
+ bound(a);
+
+ // Create second node.
+ if (n > 1) {
+ b = nodes[1];
+ b.x = b.r;
+ b.y = 0;
+ bound(b);
+
+ // Create third node and build chain.
+ if (n > 2) {
+ c = nodes[2];
+ d3_layout_packPlace(a, b, c);
+ bound(c);
+ d3_layout_packInsert(a, c);
+ a._pack_prev = c;
+ d3_layout_packInsert(c, b);
+ b = a._pack_next;
+
+ // Now iterate through the rest.
+ for (var i = 3; i < n; i++) {
+ d3_layout_packPlace(a, b, c = nodes[i]);
+
+ // Search for the closest intersection.
+ var isect = 0, s1 = 1, s2 = 1;
+ for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
+ if (d3_layout_packIntersects(j, c)) {
+ isect = 1;
+ break;
+ }
+ }
+ if (isect == 1) {
+ for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
+ if (d3_layout_packIntersects(k, c)) {
+ break;
+ }
+ }
+ }
+
+ // Update node chain.
+ if (isect) {
+ if (s1 < s2 || (s1 == s2 && b.r < a.r)) d3_layout_packSplice(a, b = j);
+ else d3_layout_packSplice(a = k, b);
+ i--;
+ } else {
+ d3_layout_packInsert(a, c);
+ b = c;
+ bound(c);
+ }
+ }
+ }
+ }
+
+ // Re-center the circles and return the encompassing radius.
+ var cx = (xMin + xMax) / 2,
+ cy = (yMin + yMax) / 2,
+ cr = 0;
+ for (var i = 0; i < n; i++) {
+ var node = nodes[i];
+ node.x -= cx;
+ node.y -= cy;
+ cr = Math.max(cr, node.r + Math.sqrt(node.x * node.x + node.y * node.y));
+ }
+
+ // Remove node links.
+ nodes.forEach(d3_layout_packUnlink);
+
+ return cr;
+}
+
+function d3_layout_packLink(node) {
+ node._pack_next = node._pack_prev = node;
+}
+
+function d3_layout_packUnlink(node) {
+ delete node._pack_next;
+ delete node._pack_prev;
+}
+
+function d3_layout_packTree(node) {
+ var children = node.children;
+ if (children && children.length) {
+ children.forEach(d3_layout_packTree);
+ node.r = d3_layout_packCircle(children);
+ } else {
+ node.r = Math.sqrt(node.value);
+ }
+}
+
+function d3_layout_packTransform(node, x, y, k) {
+ var children = node.children;
+ node.x = (x += k * node.x);
+ node.y = (y += k * node.y);
+ node.r *= k;
+ if (children) {
+ var i = -1, n = children.length;
+ while (++i < n) d3_layout_packTransform(children[i], x, y, k);
+ }
+}
+
+function d3_layout_packPlace(a, b, c) {
+ var db = a.r + c.r,
+ dx = b.x - a.x,
+ dy = b.y - a.y;
+ if (db && (dx || dy)) {
+ var da = b.r + c.r,
+ dc = Math.sqrt(dx * dx + dy * dy),
+ cos = Math.max(-1, Math.min(1, (db * db + dc * dc - da * da) / (2 * db * dc))),
+ theta = Math.acos(cos),
+ x = cos * (db /= dc),
+ y = Math.sin(theta) * db;
+ c.x = a.x + x * dx + y * dy;
+ c.y = a.y + x * dy - y * dx;
+ } else {
+ c.x = a.x + db;
+ c.y = a.y;
+ }
+}
+// Implements a hierarchical layout using the cluster (or dendrogram)
+// algorithm.
+d3.layout.cluster = function() {
+ var hierarchy = d3.layout.hierarchy().sort(null).value(null),
+ separation = d3_layout_treeSeparation,
+ size = [1, 1]; // width, height
+
+ function cluster(d, i) {
+ var nodes = hierarchy.call(this, d, i),
+ root = nodes[0],
+ previousNode,
+ x = 0,
+ kx,
+ ky;
+
+ // First walk, computing the initial x & y values.
+ d3_layout_treeVisitAfter(root, function(node) {
+ var children = node.children;
+ if (children && children.length) {
+ node.x = d3_layout_clusterX(children);
+ node.y = d3_layout_clusterY(children);
+ } else {
+ node.x = previousNode ? x += separation(node, previousNode) : 0;
+ node.y = 0;
+ previousNode = node;
+ }
+ });
+
+ // Compute the left-most, right-most, and depth-most nodes for extents.
+ var left = d3_layout_clusterLeft(root),
+ right = d3_layout_clusterRight(root),
+ x0 = left.x - separation(left, right) / 2,
+ x1 = right.x + separation(right, left) / 2;
+
+ // Second walk, normalizing x & y to the desired size.
+ d3_layout_treeVisitAfter(root, function(node) {
+ node.x = (node.x - x0) / (x1 - x0) * size[0];
+ node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
+ });
+
+ return nodes;
+ }
+
+ cluster.separation = function(x) {
+ if (!arguments.length) return separation;
+ separation = x;
+ return cluster;
+ };
+
+ cluster.size = function(x) {
+ if (!arguments.length) return size;
+ size = x;
+ return cluster;
+ };
+
+ return d3_layout_hierarchyRebind(cluster, hierarchy);
+};
+
+function d3_layout_clusterY(children) {
+ return 1 + d3.max(children, function(child) {
+ return child.y;
+ });
+}
+
+function d3_layout_clusterX(children) {
+ return children.reduce(function(x, child) {
+ return x + child.x;
+ }, 0) / children.length;
+}
+
+function d3_layout_clusterLeft(node) {
+ var children = node.children;
+ return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
+}
+
+function d3_layout_clusterRight(node) {
+ var children = node.children, n;
+ return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
+}
+// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm
+d3.layout.tree = function() {
+ var hierarchy = d3.layout.hierarchy().sort(null).value(null),
+ separation = d3_layout_treeSeparation,
+ size = [1, 1]; // width, height
+
+ function tree(d, i) {
+ var nodes = hierarchy.call(this, d, i),
+ root = nodes[0];
+
+ function firstWalk(node, previousSibling) {
+ var children = node.children,
+ layout = node._tree;
+ if (children && (n = children.length)) {
+ var n,
+ firstChild = children[0],
+ previousChild,
+ ancestor = firstChild,
+ child,
+ i = -1;
+ while (++i < n) {
+ child = children[i];
+ firstWalk(child, previousChild);
+ ancestor = apportion(child, previousChild, ancestor);
+ previousChild = child;
+ }
+ d3_layout_treeShift(node);
+ var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim);
+ if (previousSibling) {
+ layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
+ layout.mod = layout.prelim - midpoint;
+ } else {
+ layout.prelim = midpoint;
+ }
+ } else {
+ if (previousSibling) {
+ layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
+ }
+ }
+ }
+
+ function secondWalk(node, x) {
+ node.x = node._tree.prelim + x;
+ var children = node.children;
+ if (children && (n = children.length)) {
+ var i = -1,
+ n;
+ x += node._tree.mod;
+ while (++i < n) {
+ secondWalk(children[i], x);
+ }
+ }
+ }
+
+ function apportion(node, previousSibling, ancestor) {
+ if (previousSibling) {
+ var vip = node,
+ vop = node,
+ vim = previousSibling,
+ vom = node.parent.children[0],
+ sip = vip._tree.mod,
+ sop = vop._tree.mod,
+ sim = vim._tree.mod,
+ som = vom._tree.mod,
+ shift;
+ while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
+ vom = d3_layout_treeLeft(vom);
+ vop = d3_layout_treeRight(vop);
+ vop._tree.ancestor = node;
+ shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip);
+ if (shift > 0) {
+ d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift);
+ sip += shift;
+ sop += shift;
+ }
+ sim += vim._tree.mod;
+ sip += vip._tree.mod;
+ som += vom._tree.mod;
+ sop += vop._tree.mod;
+ }
+ if (vim && !d3_layout_treeRight(vop)) {
+ vop._tree.thread = vim;
+ vop._tree.mod += sim - sop;
+ }
+ if (vip && !d3_layout_treeLeft(vom)) {
+ vom._tree.thread = vip;
+ vom._tree.mod += sip - som;
+ ancestor = node;
+ }
+ }
+ return ancestor;
+ }
+
+ // Initialize temporary layout variables.
+ d3_layout_treeVisitAfter(root, function(node, previousSibling) {
+ node._tree = {
+ ancestor: node,
+ prelim: 0,
+ mod: 0,
+ change: 0,
+ shift: 0,
+ number: previousSibling ? previousSibling._tree.number + 1 : 0
+ };
+ });
+
+ // Compute the layout using Buchheim et al.'s algorithm.
+ firstWalk(root);
+ secondWalk(root, -root._tree.prelim);
+
+ // Compute the left-most, right-most, and depth-most nodes for extents.
+ var left = d3_layout_treeSearch(root, d3_layout_treeLeftmost),
+ right = d3_layout_treeSearch(root, d3_layout_treeRightmost),
+ deep = d3_layout_treeSearch(root, d3_layout_treeDeepest),
+ x0 = left.x - separation(left, right) / 2,
+ x1 = right.x + separation(right, left) / 2,
+ y1 = deep.depth || 1;
+
+ // Clear temporary layout variables; transform x and y.
+ d3_layout_treeVisitAfter(root, function(node) {
+ node.x = (node.x - x0) / (x1 - x0) * size[0];
+ node.y = node.depth / y1 * size[1];
+ delete node._tree;
+ });
+
+ return nodes;
+ }
+
+ tree.separation = function(x) {
+ if (!arguments.length) return separation;
+ separation = x;
+ return tree;
+ };
+
+ tree.size = function(x) {
+ if (!arguments.length) return size;
+ size = x;
+ return tree;
+ };
+
+ return d3_layout_hierarchyRebind(tree, hierarchy);
+};
+
+function d3_layout_treeSeparation(a, b) {
+ return a.parent == b.parent ? 1 : 2;
+}
+
+// function d3_layout_treeSeparationRadial(a, b) {
+// return (a.parent == b.parent ? 1 : 2) / a.depth;
+// }
+
+function d3_layout_treeLeft(node) {
+ var children = node.children;
+ return children && children.length ? children[0] : node._tree.thread;
+}
+
+function d3_layout_treeRight(node) {
+ var children = node.children,
+ n;
+ return children && (n = children.length) ? children[n - 1] : node._tree.thread;
+}
+
+function d3_layout_treeSearch(node, compare) {
+ var children = node.children;
+ if (children && (n = children.length)) {
+ var child,
+ n,
+ i = -1;
+ while (++i < n) {
+ if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
+ node = child;
+ }
+ }
+ }
+ return node;
+}
+
+function d3_layout_treeRightmost(a, b) {
+ return a.x - b.x;
+}
+
+function d3_layout_treeLeftmost(a, b) {
+ return b.x - a.x;
+}
+
+function d3_layout_treeDeepest(a, b) {
+ return a.depth - b.depth;
+}
+
+function d3_layout_treeVisitAfter(node, callback) {
+ function visit(node, previousSibling) {
+ var children = node.children;
+ if (children && (n = children.length)) {
+ var child,
+ previousChild = null,
+ i = -1,
+ n;
+ while (++i < n) {
+ child = children[i];
+ visit(child, previousChild);
+ previousChild = child;
+ }
+ }
+ callback(node, previousSibling);
+ }
+ visit(node, null);
+}
+
+function d3_layout_treeShift(node) {
+ var shift = 0,
+ change = 0,
+ children = node.children,
+ i = children.length,
+ child;
+ while (--i >= 0) {
+ child = children[i]._tree;
+ child.prelim += shift;
+ child.mod += shift;
+ shift += child.shift + (change += child.change);
+ }
+}
+
+function d3_layout_treeMove(ancestor, node, shift) {
+ ancestor = ancestor._tree;
+ node = node._tree;
+ var change = shift / (node.number - ancestor.number);
+ ancestor.change += change;
+ node.change -= change;
+ node.shift += shift;
+ node.prelim += shift;
+ node.mod += shift;
+}
+
+function d3_layout_treeAncestor(vim, node, ancestor) {
+ return vim._tree.ancestor.parent == node.parent
+ ? vim._tree.ancestor
+ : ancestor;
+}
+// Squarified Treemaps by Mark Bruls, Kees Huizing, and Jarke J. van Wijk
+// Modified to support a target aspect ratio by Jeff Heer
+d3.layout.treemap = function() {
+ var hierarchy = d3.layout.hierarchy(),
+ round = Math.round,
+ size = [1, 1], // width, height
+ padding = null,
+ pad = d3_layout_treemapPadNull,
+ sticky = false,
+ stickies,
+ ratio = 0.5 * (1 + Math.sqrt(5)); // golden ratio
+
+ // Compute the area for each child based on value & scale.
+ function scale(children, k) {
+ var i = -1,
+ n = children.length,
+ child,
+ area;
+ while (++i < n) {
+ area = (child = children[i]).value * (k < 0 ? 0 : k);
+ child.area = isNaN(area) || area <= 0 ? 0 : area;
+ }
+ }
+
+ // Recursively arranges the specified node's children into squarified rows.
+ function squarify(node) {
+ var children = node.children;
+ if (children && children.length) {
+ var rect = pad(node),
+ row = [],
+ remaining = children.slice(), // copy-on-write
+ child,
+ best = Infinity, // the best row score so far
+ score, // the current row score
+ u = Math.min(rect.dx, rect.dy), // initial orientation
+ n;
+ scale(remaining, rect.dx * rect.dy / node.value);
+ row.area = 0;
+ while ((n = remaining.length) > 0) {
+ row.push(child = remaining[n - 1]);
+ row.area += child.area;
+ if ((score = worst(row, u)) <= best) { // continue with this orientation
+ remaining.pop();
+ best = score;
+ } else { // abort, and try a different orientation
+ row.area -= row.pop().area;
+ position(row, u, rect, false);
+ u = Math.min(rect.dx, rect.dy);
+ row.length = row.area = 0;
+ best = Infinity;
+ }
+ }
+ if (row.length) {
+ position(row, u, rect, true);
+ row.length = row.area = 0;
+ }
+ children.forEach(squarify);
+ }
+ }
+
+ // Recursively resizes the specified node's children into existing rows.
+ // Preserves the existing layout!
+ function stickify(node) {
+ var children = node.children;
+ if (children && children.length) {
+ var rect = pad(node),
+ remaining = children.slice(), // copy-on-write
+ child,
+ row = [];
+ scale(remaining, rect.dx * rect.dy / node.value);
+ row.area = 0;
+ while (child = remaining.pop()) {
+ row.push(child);
+ row.area += child.area;
+ if (child.z != null) {
+ position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
+ row.length = row.area = 0;
+ }
+ }
+ children.forEach(stickify);
+ }
+ }
+
+ // Computes the score for the specified row, as the worst aspect ratio.
+ function worst(row, u) {
+ var s = row.area,
+ r,
+ rmax = 0,
+ rmin = Infinity,
+ i = -1,
+ n = row.length;
+ while (++i < n) {
+ if (!(r = row[i].area)) continue;
+ if (r < rmin) rmin = r;
+ if (r > rmax) rmax = r;
+ }
+ s *= s;
+ u *= u;
+ return s
+ ? Math.max((u * rmax * ratio) / s, s / (u * rmin * ratio))
+ : Infinity;
+ }
+
+ // Positions the specified row of nodes. Modifies `rect`.
+ function position(row, u, rect, flush) {
+ var i = -1,
+ n = row.length,
+ x = rect.x,
+ y = rect.y,
+ v = u ? round(row.area / u) : 0,
+ o;
+ if (u == rect.dx) { // horizontal subdivision
+ if (flush || v > rect.dy) v = rect.dy; // over+underflow
+ while (++i < n) {
+ o = row[i];
+ o.x = x;
+ o.y = y;
+ o.dy = v;
+ x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);
+ }
+ o.z = true;
+ o.dx += rect.x + rect.dx - x; // rounding error
+ rect.y += v;
+ rect.dy -= v;
+ } else { // vertical subdivision
+ if (flush || v > rect.dx) v = rect.dx; // over+underflow
+ while (++i < n) {
+ o = row[i];
+ o.x = x;
+ o.y = y;
+ o.dx = v;
+ y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);
+ }
+ o.z = false;
+ o.dy += rect.y + rect.dy - y; // rounding error
+ rect.x += v;
+ rect.dx -= v;
+ }
+ }
+
+ function treemap(d) {
+ var nodes = stickies || hierarchy(d),
+ root = nodes[0];
+ root.x = 0;
+ root.y = 0;
+ root.dx = size[0];
+ root.dy = size[1];
+ if (stickies) hierarchy.revalue(root);
+ scale([root], root.dx * root.dy / root.value);
+ (stickies ? stickify : squarify)(root);
+ if (sticky) stickies = nodes;
+ return nodes;
+ }
+
+ treemap.size = function(x) {
+ if (!arguments.length) return size;
+ size = x;
+ return treemap;
+ };
+
+ treemap.padding = function(x) {
+ if (!arguments.length) return padding;
+
+ function padFunction(node) {
+ var p = x.call(treemap, node, node.depth);
+ return p == null
+ ? d3_layout_treemapPadNull(node)
+ : d3_layout_treemapPad(node, typeof p === "number" ? [p, p, p, p] : p);
+ }
+
+ function padConstant(node) {
+ return d3_layout_treemapPad(node, x);
+ }
+
+ var type;
+ pad = (padding = x) == null ? d3_layout_treemapPadNull
+ : (type = typeof x) === "function" ? padFunction
+ : type === "number" ? (x = [x, x, x, x], padConstant)
+ : padConstant;
+ return treemap;
+ };
+
+ treemap.round = function(x) {
+ if (!arguments.length) return round != Number;
+ round = x ? Math.round : Number;
+ return treemap;
+ };
+
+ treemap.sticky = function(x) {
+ if (!arguments.length) return sticky;
+ sticky = x;
+ stickies = null;
+ return treemap;
+ };
+
+ treemap.ratio = function(x) {
+ if (!arguments.length) return ratio;
+ ratio = x;
+ return treemap;
+ };
+
+ return d3_layout_hierarchyRebind(treemap, hierarchy);
+};
+
+function d3_layout_treemapPadNull(node) {
+ return {x: node.x, y: node.y, dx: node.dx, dy: node.dy};
+}
+
+function d3_layout_treemapPad(node, padding) {
+ var x = node.x + padding[3],
+ y = node.y + padding[0],
+ dx = node.dx - padding[1] - padding[3],
+ dy = node.dy - padding[0] - padding[2];
+ if (dx < 0) { x += dx / 2; dx = 0; }
+ if (dy < 0) { y += dy / 2; dy = 0; }
+ return {x: x, y: y, dx: dx, dy: dy};
+}
+d3.csv = function(url, callback) {
+ d3.text(url, "text/csv", function(text) {
+ callback(text && d3.csv.parse(text));
+ });
+};
+d3.csv.parse = function(text) {
+ var header;
+ return d3.csv.parseRows(text, function(row, i) {
+ if (i) {
+ var o = {}, j = -1, m = header.length;
+ while (++j < m) o[header[j]] = row[j];
+ return o;
+ } else {
+ header = row;
+ return null;
+ }
+ });
+};
+
+d3.csv.parseRows = function(text, f) {
+ var EOL = {}, // sentinel value for end-of-line
+ EOF = {}, // sentinel value for end-of-file
+ rows = [], // output rows
+ re = /\r\n|[,\r\n]/g, // field separator regex
+ n = 0, // the current line number
+ t, // the current token
+ eol; // is the current token followed by EOL?
+
+ re.lastIndex = 0; // work-around bug in FF 3.6
+
+ /** @private Returns the next token. */
+ function token() {
+ if (re.lastIndex >= text.length) return EOF; // special case: end of file
+ if (eol) { eol = false; return EOL; } // special case: end of line
+
+ // special case: quotes
+ var j = re.lastIndex;
+ if (text.charCodeAt(j) === 34) {
+ var i = j;
+ while (i++ < text.length) {
+ if (text.charCodeAt(i) === 34) {
+ if (text.charCodeAt(i + 1) !== 34) break;
+ i++;
+ }
+ }
+ re.lastIndex = i + 2;
+ var c = text.charCodeAt(i + 1);
+ if (c === 13) {
+ eol = true;
+ if (text.charCodeAt(i + 2) === 10) re.lastIndex++;
+ } else if (c === 10) {
+ eol = true;
+ }
+ return text.substring(j + 1, i).replace(/""/g, "\"");
+ }
+
+ // common case
+ var m = re.exec(text);
+ if (m) {
+ eol = m[0].charCodeAt(0) !== 44;
+ return text.substring(j, m.index);
+ }
+ re.lastIndex = text.length;
+ return text.substring(j);
+ }
+
+ while ((t = token()) !== EOF) {
+ var a = [];
+ while ((t !== EOL) && (t !== EOF)) {
+ a.push(t);
+ t = token();
+ }
+ if (f && !(a = f(a, n++))) continue;
+ rows.push(a);
+ }
+
+ return rows;
+};
+d3.csv.format = function(rows) {
+ return rows.map(d3_csv_formatRow).join("\n");
+};
+
+function d3_csv_formatRow(row) {
+ return row.map(d3_csv_formatValue).join(",");
+}
+
+function d3_csv_formatValue(text) {
+ return /[",\n]/.test(text)
+ ? "\"" + text.replace(/\"/g, "\"\"") + "\""
+ : text;
+}
+d3.geo = {};
+
+var d3_geo_radians = Math.PI / 180;
+// TODO clip input coordinates on opposite hemisphere
+d3.geo.azimuthal = function() {
+ var mode = "orthographic", // or stereographic, gnomonic, equidistant or equalarea
+ origin,
+ scale = 200,
+ translate = [480, 250],
+ x0,
+ y0,
+ cy0,
+ sy0;
+
+ function azimuthal(coordinates) {
+ var x1 = coordinates[0] * d3_geo_radians - x0,
+ y1 = coordinates[1] * d3_geo_radians,
+ cx1 = Math.cos(x1),
+ sx1 = Math.sin(x1),
+ cy1 = Math.cos(y1),
+ sy1 = Math.sin(y1),
+ cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null,
+ c,
+ k = mode === "stereographic" ? 1 / (1 + cc)
+ : mode === "gnomonic" ? 1 / cc
+ : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0)
+ : mode === "equalarea" ? Math.sqrt(2 / (1 + cc))
+ : 1,
+ x = k * cy1 * sx1,
+ y = k * (sy0 * cy1 * cx1 - cy0 * sy1);
+ return [
+ scale * x + translate[0],
+ scale * y + translate[1]
+ ];
+ }
+
+ azimuthal.invert = function(coordinates) {
+ var x = (coordinates[0] - translate[0]) / scale,
+ y = (coordinates[1] - translate[1]) / scale,
+ p = Math.sqrt(x * x + y * y),
+ c = mode === "stereographic" ? 2 * Math.atan(p)
+ : mode === "gnomonic" ? Math.atan(p)
+ : mode === "equidistant" ? p
+ : mode === "equalarea" ? 2 * Math.asin(.5 * p)
+ : Math.asin(p),
+ sc = Math.sin(c),
+ cc = Math.cos(c);
+ return [
+ (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians,
+ Math.asin(cc * sy0 - (p ? (y * sc * cy0) / p : 0)) / d3_geo_radians
+ ];
+ };
+
+ azimuthal.mode = function(x) {
+ if (!arguments.length) return mode;
+ mode = x + "";
+ return azimuthal;
+ };
+
+ azimuthal.origin = function(x) {
+ if (!arguments.length) return origin;
+ origin = x;
+ x0 = origin[0] * d3_geo_radians;
+ y0 = origin[1] * d3_geo_radians;
+ cy0 = Math.cos(y0);
+ sy0 = Math.sin(y0);
+ return azimuthal;
+ };
+
+ azimuthal.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = +x;
+ return azimuthal;
+ };
+
+ azimuthal.translate = function(x) {
+ if (!arguments.length) return translate;
+ translate = [+x[0], +x[1]];
+ return azimuthal;
+ };
+
+ return azimuthal.origin([0, 0]);
+};
+// Derived from Tom Carden's Albers implementation for Protovis.
+// http://gist.github.com/476238
+// http://mathworld.wolfram.com/AlbersEqual-AreaConicProjection.html
+
+d3.geo.albers = function() {
+ var origin = [-98, 38],
+ parallels = [29.5, 45.5],
+ scale = 1000,
+ translate = [480, 250],
+ lng0, // d3_geo_radians * origin[0]
+ n,
+ C,
+ p0;
+
+ function albers(coordinates) {
+ var t = n * (d3_geo_radians * coordinates[0] - lng0),
+ p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n;
+ return [
+ scale * p * Math.sin(t) + translate[0],
+ scale * (p * Math.cos(t) - p0) + translate[1]
+ ];
+ }
+
+ albers.invert = function(coordinates) {
+ var x = (coordinates[0] - translate[0]) / scale,
+ y = (coordinates[1] - translate[1]) / scale,
+ p0y = p0 + y,
+ t = Math.atan2(x, p0y),
+ p = Math.sqrt(x * x + p0y * p0y);
+ return [
+ (lng0 + t / n) / d3_geo_radians,
+ Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians
+ ];
+ };
+
+ function reload() {
+ var phi1 = d3_geo_radians * parallels[0],
+ phi2 = d3_geo_radians * parallels[1],
+ lat0 = d3_geo_radians * origin[1],
+ s = Math.sin(phi1),
+ c = Math.cos(phi1);
+ lng0 = d3_geo_radians * origin[0];
+ n = .5 * (s + Math.sin(phi2));
+ C = c * c + 2 * n * s;
+ p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n;
+ return albers;
+ }
+
+ albers.origin = function(x) {
+ if (!arguments.length) return origin;
+ origin = [+x[0], +x[1]];
+ return reload();
+ };
+
+ albers.parallels = function(x) {
+ if (!arguments.length) return parallels;
+ parallels = [+x[0], +x[1]];
+ return reload();
+ };
+
+ albers.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = +x;
+ return albers;
+ };
+
+ albers.translate = function(x) {
+ if (!arguments.length) return translate;
+ translate = [+x[0], +x[1]];
+ return albers;
+ };
+
+ return reload();
+};
+
+// A composite projection for the United States, 960x500. The set of standard
+// parallels for each region comes from USGS, which is published here:
+// http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers
+// TODO allow the composite projection to be rescaled?
+d3.geo.albersUsa = function() {
+ var lower48 = d3.geo.albers();
+
+ var alaska = d3.geo.albers()
+ .origin([-160, 60])
+ .parallels([55, 65]);
+
+ var hawaii = d3.geo.albers()
+ .origin([-160, 20])
+ .parallels([8, 18]);
+
+ var puertoRico = d3.geo.albers()
+ .origin([-60, 10])
+ .parallels([8, 18]);
+
+ function albersUsa(coordinates) {
+ var lon = coordinates[0],
+ lat = coordinates[1];
+ return (lat > 50 ? alaska
+ : lon < -140 ? hawaii
+ : lat < 21 ? puertoRico
+ : lower48)(coordinates);
+ }
+
+ albersUsa.scale = function(x) {
+ if (!arguments.length) return lower48.scale();
+ lower48.scale(x);
+ alaska.scale(x * .6);
+ hawaii.scale(x);
+ puertoRico.scale(x * 1.5);
+ return albersUsa.translate(lower48.translate());
+ };
+
+ albersUsa.translate = function(x) {
+ if (!arguments.length) return lower48.translate();
+ var dz = lower48.scale() / 1000,
+ dx = x[0],
+ dy = x[1];
+ lower48.translate(x);
+ alaska.translate([dx - 400 * dz, dy + 170 * dz]);
+ hawaii.translate([dx - 190 * dz, dy + 200 * dz]);
+ puertoRico.translate([dx + 580 * dz, dy + 430 * dz]);
+ return albersUsa;
+ };
+
+ return albersUsa.scale(lower48.scale());
+};
+d3.geo.bonne = function() {
+ var scale = 200,
+ translate = [480, 250],
+ x0, // origin longitude in radians
+ y0, // origin latitude in radians
+ y1, // parallel latitude in radians
+ c1; // cot(y1)
+
+ function bonne(coordinates) {
+ var x = coordinates[0] * d3_geo_radians - x0,
+ y = coordinates[1] * d3_geo_radians - y0;
+ if (y1) {
+ var p = c1 + y1 - y, E = x * Math.cos(y) / p;
+ x = p * Math.sin(E);
+ y = p * Math.cos(E) - c1;
+ } else {
+ x *= Math.cos(y);
+ y *= -1;
+ }
+ return [
+ scale * x + translate[0],
+ scale * y + translate[1]
+ ];
+ }
+
+ bonne.invert = function(coordinates) {
+ var x = (coordinates[0] - translate[0]) / scale,
+ y = (coordinates[1] - translate[1]) / scale;
+ if (y1) {
+ var c = c1 + y, p = Math.sqrt(x * x + c * c);
+ y = c1 + y1 - p;
+ x = x0 + p * Math.atan2(x, c) / Math.cos(y);
+ } else {
+ y *= -1;
+ x /= Math.cos(y);
+ }
+ return [
+ x / d3_geo_radians,
+ y / d3_geo_radians
+ ];
+ };
+
+ // 90° for Werner, 0° for Sinusoidal
+ bonne.parallel = function(x) {
+ if (!arguments.length) return y1 / d3_geo_radians;
+ c1 = 1 / Math.tan(y1 = x * d3_geo_radians);
+ return bonne;
+ };
+
+ bonne.origin = function(x) {
+ if (!arguments.length) return [x0 / d3_geo_radians, y0 / d3_geo_radians];
+ x0 = x[0] * d3_geo_radians;
+ y0 = x[1] * d3_geo_radians;
+ return bonne;
+ };
+
+ bonne.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = +x;
+ return bonne;
+ };
+
+ bonne.translate = function(x) {
+ if (!arguments.length) return translate;
+ translate = [+x[0], +x[1]];
+ return bonne;
+ };
+
+ return bonne.origin([0, 0]).parallel(45);
+};
+d3.geo.equirectangular = function() {
+ var scale = 500,
+ translate = [480, 250];
+
+ function equirectangular(coordinates) {
+ var x = coordinates[0] / 360,
+ y = -coordinates[1] / 360;
+ return [
+ scale * x + translate[0],
+ scale * y + translate[1]
+ ];
+ }
+
+ equirectangular.invert = function(coordinates) {
+ var x = (coordinates[0] - translate[0]) / scale,
+ y = (coordinates[1] - translate[1]) / scale;
+ return [
+ 360 * x,
+ -360 * y
+ ];
+ };
+
+ equirectangular.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = +x;
+ return equirectangular;
+ };
+
+ equirectangular.translate = function(x) {
+ if (!arguments.length) return translate;
+ translate = [+x[0], +x[1]];
+ return equirectangular;
+ };
+
+ return equirectangular;
+};
+d3.geo.mercator = function() {
+ var scale = 500,
+ translate = [480, 250];
+
+ function mercator(coordinates) {
+ var x = coordinates[0] / 360,
+ y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360;
+ return [
+ scale * x + translate[0],
+ scale * Math.max(-.5, Math.min(.5, y)) + translate[1]
+ ];
+ }
+
+ mercator.invert = function(coordinates) {
+ var x = (coordinates[0] - translate[0]) / scale,
+ y = (coordinates[1] - translate[1]) / scale;
+ return [
+ 360 * x,
+ 2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90
+ ];
+ };
+
+ mercator.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = +x;
+ return mercator;
+ };
+
+ mercator.translate = function(x) {
+ if (!arguments.length) return translate;
+ translate = [+x[0], +x[1]];
+ return mercator;
+ };
+
+ return mercator;
+};
+function d3_geo_type(types, defaultValue) {
+ return function(object) {
+ return object && types.hasOwnProperty(object.type) ? types[object.type](object) : defaultValue;
+ };
+}
+/**
+ * Returns a function that, given a GeoJSON object (e.g., a feature), returns
+ * the corresponding SVG path. The function can be customized by overriding the
+ * projection. Point features are mapped to circles with a default radius of
+ * 4.5px; the radius can be specified either as a constant or a function that
+ * is evaluated per object.
+ */
+d3.geo.path = function() {
+ var pointRadius = 4.5,
+ pointCircle = d3_path_circle(pointRadius),
+ projection = d3.geo.albersUsa();
+
+ function path(d, i) {
+ if (typeof pointRadius === "function") {
+ pointCircle = d3_path_circle(pointRadius.apply(this, arguments));
+ }
+ return pathType(d) || null;
+ }
+
+ function project(coordinates) {
+ return projection(coordinates).join(",");
+ }
+
+ var pathType = d3_geo_type({
+
+ FeatureCollection: function(o) {
+ var path = [],
+ features = o.features,
+ i = -1, // features.index
+ n = features.length;
+ while (++i < n) path.push(pathType(features[i].geometry));
+ return path.join("");
+ },
+
+ Feature: function(o) {
+ return pathType(o.geometry);
+ },
+
+ Point: function(o) {
+ return "M" + project(o.coordinates) + pointCircle;
+ },
+
+ MultiPoint: function(o) {
+ var path = [],
+ coordinates = o.coordinates,
+ i = -1, // coordinates.index
+ n = coordinates.length;
+ while (++i < n) path.push("M", project(coordinates[i]), pointCircle);
+ return path.join("");
+ },
+
+ LineString: function(o) {
+ var path = ["M"],
+ coordinates = o.coordinates,
+ i = -1, // coordinates.index
+ n = coordinates.length;
+ while (++i < n) path.push(project(coordinates[i]), "L");
+ path.pop();
+ return path.join("");
+ },
+
+ MultiLineString: function(o) {
+ var path = [],
+ coordinates = o.coordinates,
+ i = -1, // coordinates.index
+ n = coordinates.length,
+ subcoordinates, // coordinates[i]
+ j, // subcoordinates.index
+ m; // subcoordinates.length
+ while (++i < n) {
+ subcoordinates = coordinates[i];
+ j = -1;
+ m = subcoordinates.length;
+ path.push("M");
+ while (++j < m) path.push(project(subcoordinates[j]), "L");
+ path.pop();
+ }
+ return path.join("");
+ },
+
+ Polygon: function(o) {
+ var path = [],
+ coordinates = o.coordinates,
+ i = -1, // coordinates.index
+ n = coordinates.length,
+ subcoordinates, // coordinates[i]
+ j, // subcoordinates.index
+ m; // subcoordinates.length
+ while (++i < n) {
+ subcoordinates = coordinates[i];
+ j = -1;
+ if ((m = subcoordinates.length - 1) > 0) {
+ path.push("M");
+ while (++j < m) path.push(project(subcoordinates[j]), "L");
+ path[path.length - 1] = "Z";
+ }
+ }
+ return path.join("");
+ },
+
+ MultiPolygon: function(o) {
+ var path = [],
+ coordinates = o.coordinates,
+ i = -1, // coordinates index
+ n = coordinates.length,
+ subcoordinates, // coordinates[i]
+ j, // subcoordinates index
+ m, // subcoordinates.length
+ subsubcoordinates, // subcoordinates[j]
+ k, // subsubcoordinates index
+ p; // subsubcoordinates.length
+ while (++i < n) {
+ subcoordinates = coordinates[i];
+ j = -1;
+ m = subcoordinates.length;
+ while (++j < m) {
+ subsubcoordinates = subcoordinates[j];
+ k = -1;
+ if ((p = subsubcoordinates.length - 1) > 0) {
+ path.push("M");
+ while (++k < p) path.push(project(subsubcoordinates[k]), "L");
+ path[path.length - 1] = "Z";
+ }
+ }
+ }
+ return path.join("");
+ },
+
+ GeometryCollection: function(o) {
+ var path = [],
+ geometries = o.geometries,
+ i = -1, // geometries index
+ n = geometries.length;
+ while (++i < n) path.push(pathType(geometries[i]));
+ return path.join("");
+ }
+
+ });
+
+ var areaType = path.area = d3_geo_type({
+
+ FeatureCollection: function(o) {
+ var area = 0,
+ features = o.features,
+ i = -1, // features.index
+ n = features.length;
+ while (++i < n) area += areaType(features[i]);
+ return area;
+ },
+
+ Feature: function(o) {
+ return areaType(o.geometry);
+ },
+
+ Polygon: function(o) {
+ return polygonArea(o.coordinates);
+ },
+
+ MultiPolygon: function(o) {
+ var sum = 0,
+ coordinates = o.coordinates,
+ i = -1, // coordinates index
+ n = coordinates.length;
+ while (++i < n) sum += polygonArea(coordinates[i]);
+ return sum;
+ },
+
+ GeometryCollection: function(o) {
+ var sum = 0,
+ geometries = o.geometries,
+ i = -1, // geometries index
+ n = geometries.length;
+ while (++i < n) sum += areaType(geometries[i]);
+ return sum;
+ }
+
+ }, 0);
+
+ function polygonArea(coordinates) {
+ var sum = area(coordinates[0]), // exterior ring
+ i = 0, // coordinates.index
+ n = coordinates.length;
+ while (++i < n) sum -= area(coordinates[i]); // holes
+ return sum;
+ }
+
+ function polygonCentroid(coordinates) {
+ var polygon = d3.geom.polygon(coordinates[0].map(projection)), // exterior ring
+ area = polygon.area(),
+ centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1),
+ x = centroid[0],
+ y = centroid[1],
+ z = area,
+ i = 0, // coordinates index
+ n = coordinates.length;
+ while (++i < n) {
+ polygon = d3.geom.polygon(coordinates[i].map(projection)); // holes
+ area = polygon.area();
+ centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1);
+ x -= centroid[0];
+ y -= centroid[1];
+ z -= area;
+ }
+ return [x, y, 6 * z]; // weighted centroid
+ }
+
+ var centroidType = path.centroid = d3_geo_type({
+
+ // TODO FeatureCollection
+ // TODO Point
+ // TODO MultiPoint
+ // TODO LineString
+ // TODO MultiLineString
+ // TODO GeometryCollection
+
+ Feature: function(o) {
+ return centroidType(o.geometry);
+ },
+
+ Polygon: function(o) {
+ var centroid = polygonCentroid(o.coordinates);
+ return [centroid[0] / centroid[2], centroid[1] / centroid[2]];
+ },
+
+ MultiPolygon: function(o) {
+ var area = 0,
+ coordinates = o.coordinates,
+ centroid,
+ x = 0,
+ y = 0,
+ z = 0,
+ i = -1, // coordinates index
+ n = coordinates.length;
+ while (++i < n) {
+ centroid = polygonCentroid(coordinates[i]);
+ x += centroid[0];
+ y += centroid[1];
+ z += centroid[2];
+ }
+ return [x / z, y / z];
+ }
+
+ });
+
+ function area(coordinates) {
+ return Math.abs(d3.geom.polygon(coordinates.map(projection)).area());
+ }
+
+ path.projection = function(x) {
+ projection = x;
+ return path;
+ };
+
+ path.pointRadius = function(x) {
+ if (typeof x === "function") pointRadius = x;
+ else {
+ pointRadius = +x;
+ pointCircle = d3_path_circle(pointRadius);
+ }
+ return path;
+ };
+
+ return path;
+};
+
+function d3_path_circle(radius) {
+ return "m0," + radius
+ + "a" + radius + "," + radius + " 0 1,1 0," + (-2 * radius)
+ + "a" + radius + "," + radius + " 0 1,1 0," + (+2 * radius)
+ + "z";
+}
+/**
+ * Given a GeoJSON object, returns the corresponding bounding box. The bounding
+ * box is represented by a two-dimensional array: [[left, bottom], [right,
+ * top]], where left is the minimum longitude, bottom is the minimum latitude,
+ * right is maximum longitude, and top is the maximum latitude.
+ */
+d3.geo.bounds = function(feature) {
+ var left = Infinity,
+ bottom = Infinity,
+ right = -Infinity,
+ top = -Infinity;
+ d3_geo_bounds(feature, function(x, y) {
+ if (x < left) left = x;
+ if (x > right) right = x;
+ if (y < bottom) bottom = y;
+ if (y > top) top = y;
+ });
+ return [[left, bottom], [right, top]];
+};
+
+function d3_geo_bounds(o, f) {
+ if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f);
+}
+
+var d3_geo_boundsTypes = {
+ Feature: d3_geo_boundsFeature,
+ FeatureCollection: d3_geo_boundsFeatureCollection,
+ GeometryCollection: d3_geo_boundsGeometryCollection,
+ LineString: d3_geo_boundsLineString,
+ MultiLineString: d3_geo_boundsMultiLineString,
+ MultiPoint: d3_geo_boundsLineString,
+ MultiPolygon: d3_geo_boundsMultiPolygon,
+ Point: d3_geo_boundsPoint,
+ Polygon: d3_geo_boundsPolygon
+};
+
+function d3_geo_boundsFeature(o, f) {
+ d3_geo_bounds(o.geometry, f);
+}
+
+function d3_geo_boundsFeatureCollection(o, f) {
+ for (var a = o.features, i = 0, n = a.length; i < n; i++) {
+ d3_geo_bounds(a[i].geometry, f);
+ }
+}
+
+function d3_geo_boundsGeometryCollection(o, f) {
+ for (var a = o.geometries, i = 0, n = a.length; i < n; i++) {
+ d3_geo_bounds(a[i], f);
+ }
+}
+
+function d3_geo_boundsLineString(o, f) {
+ for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
+ f.apply(null, a[i]);
+ }
+}
+
+function d3_geo_boundsMultiLineString(o, f) {
+ for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
+ for (var b = a[i], j = 0, m = b.length; j < m; j++) {
+ f.apply(null, b[j]);
+ }
+ }
+}
+
+function d3_geo_boundsMultiPolygon(o, f) {
+ for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
+ for (var b = a[i][0], j = 0, m = b.length; j < m; j++) {
+ f.apply(null, b[j]);
+ }
+ }
+}
+
+function d3_geo_boundsPoint(o, f) {
+ f.apply(null, o.coordinates);
+}
+
+function d3_geo_boundsPolygon(o, f) {
+ for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) {
+ f.apply(null, a[i]);
+ }
+}
+// TODO breakAtDateLine?
+
+d3.geo.circle = function() {
+ var origin = [0, 0],
+ degrees = 90 - 1e-2,
+ radians = degrees * d3_geo_radians,
+ arc = d3.geo.greatArc().target(Object);
+
+ function circle() {
+ // TODO render a circle as a Polygon
+ }
+
+ function visible(point) {
+ return arc.distance(point) < radians;
+ }
+
+ circle.clip = function(d) {
+ arc.source(typeof origin === "function" ? origin.apply(this, arguments) : origin);
+ return clipType(d);
+ };
+
+ var clipType = d3_geo_type({
+
+ FeatureCollection: function(o) {
+ var features = o.features.map(clipType).filter(Object);
+ return features && (o = Object.create(o), o.features = features, o);
+ },
+
+ Feature: function(o) {
+ var geometry = clipType(o.geometry);
+ return geometry && (o = Object.create(o), o.geometry = geometry, o);
+ },
+
+ Point: function(o) {
+ return visible(o.coordinates) && o;
+ },
+
+ MultiPoint: function(o) {
+ var coordinates = o.coordinates.filter(visible);
+ return coordinates.length && {
+ type: o.type,
+ coordinates: coordinates
+ };
+ },
+
+ LineString: function(o) {
+ var coordinates = clip(o.coordinates);
+ return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
+ },
+
+ MultiLineString: function(o) {
+ var coordinates = o.coordinates.map(clip).filter(function(d) { return d.length; });
+ return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
+ },
+
+ Polygon: function(o) {
+ var coordinates = o.coordinates.map(clip);
+ return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o);
+ },
+
+ MultiPolygon: function(o) {
+ var coordinates = o.coordinates.map(function(d) { return d.map(clip); }).filter(function(d) { return d[0].length; });
+ return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
+ },
+
+ GeometryCollection: function(o) {
+ var geometries = o.geometries.map(clipType).filter(Object);
+ return geometries.length && (o = Object.create(o), o.geometries = geometries, o);
+ }
+
+ });
+
+ function clip(coordinates) {
+ var i = -1,
+ n = coordinates.length,
+ clipped = [],
+ p0,
+ p1,
+ p2,
+ d0,
+ d1;
+
+ while (++i < n) {
+ d1 = arc.distance(p2 = coordinates[i]);
+ if (d1 < radians) {
+ if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
+ clipped.push(p2);
+ p0 = p1 = null;
+ } else {
+ p1 = p2;
+ if (!p0 && clipped.length) {
+ clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0)));
+ p0 = p1;
+ }
+ }
+ d0 = d1;
+ }
+
+ if (p1 && clipped.length) {
+ d1 = arc.distance(p2 = clipped[0]);
+ clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
+ }
+
+ return resample(clipped);
+ }
+
+ // Resample coordinates, creating great arcs between each.
+ function resample(coordinates) {
+ var i = 0,
+ n = coordinates.length,
+ j,
+ m,
+ resampled = n ? [coordinates[0]] : coordinates,
+ resamples,
+ origin = arc.source();
+
+ while (++i < n) {
+ resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates;
+ for (j = 0, m = resamples.length; ++j < m;) resampled.push(resamples[j]);
+ }
+
+ arc.source(origin);
+ return resampled;
+ }
+
+ circle.origin = function(x) {
+ if (!arguments.length) return origin;
+ origin = x;
+ return circle;
+ };
+
+ circle.angle = function(x) {
+ if (!arguments.length) return degrees;
+ radians = (degrees = +x) * d3_geo_radians;
+ return circle;
+ };
+
+ // Precision is specified in degrees.
+ circle.precision = function(x) {
+ if (!arguments.length) return arc.precision();
+ arc.precision(x);
+ return circle;
+ };
+
+ return circle;
+}
+d3.geo.greatArc = function() {
+ var source = d3_geo_greatArcSource,
+ target = d3_geo_greatArcTarget,
+ precision = 6 * d3_geo_radians;
+
+ function greatArc() {
+ var a = typeof source === "function" ? source.apply(this, arguments) : source,
+ b = typeof target === "function" ? target.apply(this, arguments) : target,
+ i = d3_geo_greatArcInterpolate(a, b),
+ dt = precision / i.d,
+ t = 0,
+ coordinates = [a];
+ while ((t += dt) < 1) coordinates.push(i(t));
+ coordinates.push(b);
+ return {
+ type: "LineString",
+ coordinates: coordinates
+ };
+ }
+
+ // Length returned in radians; multiply by radius for distance.
+ greatArc.distance = function() {
+ var a = typeof source === "function" ? source.apply(this, arguments) : source,
+ b = typeof target === "function" ? target.apply(this, arguments) : target;
+ return d3_geo_greatArcInterpolate(a, b).d;
+ };
+
+ greatArc.source = function(x) {
+ if (!arguments.length) return source;
+ source = x;
+ return greatArc;
+ };
+
+ greatArc.target = function(x) {
+ if (!arguments.length) return target;
+ target = x;
+ return greatArc;
+ };
+
+ // Precision is specified in degrees.
+ greatArc.precision = function(x) {
+ if (!arguments.length) return precision / d3_geo_radians;
+ precision = x * d3_geo_radians;
+ return greatArc;
+ };
+
+ return greatArc;
+};
+
+function d3_geo_greatArcSource(d) {
+ return d.source;
+}
+
+function d3_geo_greatArcTarget(d) {
+ return d.target;
+}
+
+function d3_geo_greatArcInterpolate(a, b) {
+ var x0 = a[0] * d3_geo_radians, cx0 = Math.cos(x0), sx0 = Math.sin(x0),
+ y0 = a[1] * d3_geo_radians, cy0 = Math.cos(y0), sy0 = Math.sin(y0),
+ x1 = b[0] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1),
+ y1 = b[1] * d3_geo_radians, cy1 = Math.cos(y1), sy1 = Math.sin(y1),
+ d = interpolate.d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))),
+ sd = Math.sin(d);
+
+ // From http://williams.best.vwh.net/avform.htm#Intermediate
+ function interpolate(t) {
+ var A = Math.sin(d - (t *= d)) / sd,
+ B = Math.sin(t) / sd,
+ x = A * cy0 * cx0 + B * cy1 * cx1,
+ y = A * cy0 * sx0 + B * cy1 * sx1,
+ z = A * sy0 + B * sy1;
+ return [
+ Math.atan2(y, x) / d3_geo_radians,
+ Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians
+ ];
+ }
+
+ return interpolate;
+}
+d3.geo.greatCircle = d3.geo.circle;
+d3.geom = {};
+/**
+ * Computes a contour for a given input grid function using the <a
+ * href="http://en.wikipedia.org/wiki/Marching_squares">marching
+ * squares</a> algorithm. Returns the contour polygon as an array of points.
+ *
+ * @param grid a two-input function(x, y) that returns true for values
+ * inside the contour and false for values outside the contour.
+ * @param start an optional starting point [x, y] on the grid.
+ * @returns polygon [[x1, y1], [x2, y2], …]
+ */
+d3.geom.contour = function(grid, start) {
+ var s = start || d3_geom_contourStart(grid), // starting point
+ c = [], // contour polygon
+ x = s[0], // current x position
+ y = s[1], // current y position
+ dx = 0, // next x direction
+ dy = 0, // next y direction
+ pdx = NaN, // previous x direction
+ pdy = NaN, // previous y direction
+ i = 0;
+
+ do {
+ // determine marching squares index
+ i = 0;
+ if (grid(x-1, y-1)) i += 1;
+ if (grid(x, y-1)) i += 2;
+ if (grid(x-1, y )) i += 4;
+ if (grid(x, y )) i += 8;
+
+ // determine next direction
+ if (i === 6) {
+ dx = pdy === -1 ? -1 : 1;
+ dy = 0;
+ } else if (i === 9) {
+ dx = 0;
+ dy = pdx === 1 ? -1 : 1;
+ } else {
+ dx = d3_geom_contourDx[i];
+ dy = d3_geom_contourDy[i];
+ }
+
+ // update contour polygon
+ if (dx != pdx && dy != pdy) {
+ c.push([x, y]);
+ pdx = dx;
+ pdy = dy;
+ }
+
+ x += dx;
+ y += dy;
+ } while (s[0] != x || s[1] != y);
+
+ return c;
+};
+
+// lookup tables for marching directions
+var d3_geom_contourDx = [1, 0, 1, 1,-1, 0,-1, 1,0, 0,0,0,-1, 0,-1,NaN],
+ d3_geom_contourDy = [0,-1, 0, 0, 0,-1, 0, 0,1,-1,1,1, 0,-1, 0,NaN];
+
+function d3_geom_contourStart(grid) {
+ var x = 0,
+ y = 0;
+
+ // search for a starting point; begin at origin
+ // and proceed along outward-expanding diagonals
+ while (true) {
+ if (grid(x,y)) {
+ return [x,y];
+ }
+ if (x === 0) {
+ x = y + 1;
+ y = 0;
+ } else {
+ x = x - 1;
+ y = y + 1;
+ }
+ }
+}
+/**
+ * Computes the 2D convex hull of a set of points using Graham's scanning
+ * algorithm. The algorithm has been implemented as described in Cormen,
+ * Leiserson, and Rivest's Introduction to Algorithms. The running time of
+ * this algorithm is O(n log n), where n is the number of input points.
+ *
+ * @param vertices [[x1, y1], [x2, y2], …]
+ * @returns polygon [[x1, y1], [x2, y2], …]
+ */
+d3.geom.hull = function(vertices) {
+ if (vertices.length < 3) return [];
+
+ var len = vertices.length,
+ plen = len - 1,
+ points = [],
+ stack = [],
+ i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;
+
+ // find the starting ref point: leftmost point with the minimum y coord
+ for (i=1; i<len; ++i) {
+ if (vertices[i][1] < vertices[h][1]) {
+ h = i;
+ } else if (vertices[i][1] == vertices[h][1]) {
+ h = (vertices[i][0] < vertices[h][0] ? i : h);
+ }
+ }
+
+ // calculate polar angles from ref point and sort
+ for (i=0; i<len; ++i) {
+ if (i === h) continue;
+ y1 = vertices[i][1] - vertices[h][1];
+ x1 = vertices[i][0] - vertices[h][0];
+ points.push({angle: Math.atan2(y1, x1), index: i});
+ }
+ points.sort(function(a, b) { return a.angle - b.angle; });
+
+ // toss out duplicate angles
+ a = points[0].angle;
+ v = points[0].index;
+ u = 0;
+ for (i=1; i<plen; ++i) {
+ j = points[i].index;
+ if (a == points[i].angle) {
+ // keep angle for point most distant from the reference
+ x1 = vertices[v][0] - vertices[h][0];
+ y1 = vertices[v][1] - vertices[h][1];
+ x2 = vertices[j][0] - vertices[h][0];
+ y2 = vertices[j][1] - vertices[h][1];
+ if ((x1*x1 + y1*y1) >= (x2*x2 + y2*y2)) {
+ points[i].index = -1;
+ } else {
+ points[u].index = -1;
+ a = points[i].angle;
+ u = i;
+ v = j;
+ }
+ } else {
+ a = points[i].angle;
+ u = i;
+ v = j;
+ }
+ }
+
+ // initialize the stack
+ stack.push(h);
+ for (i=0, j=0; i<2; ++j) {
+ if (points[j].index !== -1) {
+ stack.push(points[j].index);
+ i++;
+ }
+ }
+ sp = stack.length;
+
+ // do graham's scan
+ for (; j<plen; ++j) {
+ if (points[j].index === -1) continue; // skip tossed out points
+ while (!d3_geom_hullCCW(stack[sp-2], stack[sp-1], points[j].index, vertices)) {
+ --sp;
+ }
+ stack[sp++] = points[j].index;
+ }
+
+ // construct the hull
+ var poly = [];
+ for (i=0; i<sp; ++i) {
+ poly.push(vertices[stack[i]]);
+ }
+ return poly;
+}
+
+// are three points in counter-clockwise order?
+function d3_geom_hullCCW(i1, i2, i3, v) {
+ var t, a, b, c, d, e, f;
+ t = v[i1]; a = t[0]; b = t[1];
+ t = v[i2]; c = t[0]; d = t[1];
+ t = v[i3]; e = t[0]; f = t[1];
+ return ((f-b)*(c-a) - (d-b)*(e-a)) > 0;
+}
+// Note: requires coordinates to be counterclockwise and convex!
+d3.geom.polygon = function(coordinates) {
+
+ coordinates.area = function() {
+ var i = 0,
+ n = coordinates.length,
+ a = coordinates[n - 1][0] * coordinates[0][1],
+ b = coordinates[n - 1][1] * coordinates[0][0];
+ while (++i < n) {
+ a += coordinates[i - 1][0] * coordinates[i][1];
+ b += coordinates[i - 1][1] * coordinates[i][0];
+ }
+ return (b - a) * .5;
+ };
+
+ coordinates.centroid = function(k) {
+ var i = -1,
+ n = coordinates.length,
+ x = 0,
+ y = 0,
+ a,
+ b = coordinates[n - 1],
+ c;
+ if (!arguments.length) k = -1 / (6 * coordinates.area());
+ while (++i < n) {
+ a = b;
+ b = coordinates[i];
+ c = a[0] * b[1] - b[0] * a[1];
+ x += (a[0] + b[0]) * c;
+ y += (a[1] + b[1]) * c;
+ }
+ return [x * k, y * k];
+ };
+
+ // The Sutherland-Hodgman clipping algorithm.
+ coordinates.clip = function(subject) {
+ var input,
+ i = -1,
+ n = coordinates.length,
+ j,
+ m,
+ a = coordinates[n - 1],
+ b,
+ c,
+ d;
+ while (++i < n) {
+ input = subject.slice();
+ subject.length = 0;
+ b = coordinates[i];
+ c = input[(m = input.length) - 1];
+ j = -1;
+ while (++j < m) {
+ d = input[j];
+ if (d3_geom_polygonInside(d, a, b)) {
+ if (!d3_geom_polygonInside(c, a, b)) {
+ subject.push(d3_geom_polygonIntersect(c, d, a, b));
+ }
+ subject.push(d);
+ } else if (d3_geom_polygonInside(c, a, b)) {
+ subject.push(d3_geom_polygonIntersect(c, d, a, b));
+ }
+ c = d;
+ }
+ a = b;
+ }
+ return subject;
+ };
+
+ return coordinates;
+};
+
+function d3_geom_polygonInside(p, a, b) {
+ return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
+}
+
+// Intersect two infinite lines cd and ab.
+function d3_geom_polygonIntersect(c, d, a, b) {
+ var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0],
+ y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1],
+ x13 = x1 - x3,
+ x21 = x2 - x1,
+ x43 = x4 - x3,
+ y13 = y1 - y3,
+ y21 = y2 - y1,
+ y43 = y4 - y3,
+ ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21);
+ return [x1 + ua * x21, y1 + ua * y21];
+}
+// Adapted from Nicolas Garcia Belmonte's JIT implementation:
+// http://blog.thejit.org/2010/02/12/voronoi-tessellation/
+// http://blog.thejit.org/assets/voronoijs/voronoi.js
+// See lib/jit/LICENSE for details.
+
+// Notes:
+//
+// This implementation does not clip the returned polygons, so if you want to
+// clip them to a particular shape you will need to do that either in SVG or by
+// post-processing with d3.geom.polygon's clip method.
+//
+// If any vertices are coincident or have NaN positions, the behavior of this
+// method is undefined. Most likely invalid polygons will be returned. You
+// should filter invalid points, and consolidate coincident points, before
+// computing the tessellation.
+
+/**
+ * @param vertices [[x1, y1], [x2, y2], …]
+ * @returns polygons [[[x1, y1], [x2, y2], …], …]
+ */
+d3.geom.voronoi = function(vertices) {
+ var polygons = vertices.map(function() { return []; });
+
+ d3_voronoi_tessellate(vertices, function(e) {
+ var s1,
+ s2,
+ x1,
+ x2,
+ y1,
+ y2;
+ if (e.a === 1 && e.b >= 0) {
+ s1 = e.ep.r;
+ s2 = e.ep.l;
+ } else {
+ s1 = e.ep.l;
+ s2 = e.ep.r;
+ }
+ if (e.a === 1) {
+ y1 = s1 ? s1.y : -1e6;
+ x1 = e.c - e.b * y1;
+ y2 = s2 ? s2.y : 1e6;
+ x2 = e.c - e.b * y2;
+ } else {
+ x1 = s1 ? s1.x : -1e6;
+ y1 = e.c - e.a * x1;
+ x2 = s2 ? s2.x : 1e6;
+ y2 = e.c - e.a * x2;
+ }
+ var v1 = [x1, y1],
+ v2 = [x2, y2];
+ polygons[e.region.l.index].push(v1, v2);
+ polygons[e.region.r.index].push(v1, v2);
+ });
+
+ // Reconnect the polygon segments into counterclockwise loops.
+ return polygons.map(function(polygon, i) {
+ var cx = vertices[i][0],
+ cy = vertices[i][1];
+ polygon.forEach(function(v) {
+ v.angle = Math.atan2(v[0] - cx, v[1] - cy);
+ });
+ return polygon.sort(function(a, b) {
+ return a.angle - b.angle;
+ }).filter(function(d, i) {
+ return !i || (d.angle - polygon[i - 1].angle > 1e-10);
+ });
+ });
+};
+
+var d3_voronoi_opposite = {"l": "r", "r": "l"};
+
+function d3_voronoi_tessellate(vertices, callback) {
+
+ var Sites = {
+ list: vertices
+ .map(function(v, i) {
+ return {
+ index: i,
+ x: v[0],
+ y: v[1]
+ };
+ })
+ .sort(function(a, b) {
+ return a.y < b.y ? -1
+ : a.y > b.y ? 1
+ : a.x < b.x ? -1
+ : a.x > b.x ? 1
+ : 0;
+ }),
+ bottomSite: null
+ };
+
+ var EdgeList = {
+ list: [],
+ leftEnd: null,
+ rightEnd: null,
+
+ init: function() {
+ EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");
+ EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");
+ EdgeList.leftEnd.r = EdgeList.rightEnd;
+ EdgeList.rightEnd.l = EdgeList.leftEnd;
+ EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);
+ },
+
+ createHalfEdge: function(edge, side) {
+ return {
+ edge: edge,
+ side: side,
+ vertex: null,
+ "l": null,
+ "r": null
+ };
+ },
+
+ insert: function(lb, he) {
+ he.l = lb;
+ he.r = lb.r;
+ lb.r.l = he;
+ lb.r = he;
+ },
+
+ leftBound: function(p) {
+ var he = EdgeList.leftEnd;
+ do {
+ he = he.r;
+ } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));
+ he = he.l;
+ return he;
+ },
+
+ del: function(he) {
+ he.l.r = he.r;
+ he.r.l = he.l;
+ he.edge = null;
+ },
+
+ right: function(he) {
+ return he.r;
+ },
+
+ left: function(he) {
+ return he.l;
+ },
+
+ leftRegion: function(he) {
+ return he.edge == null
+ ? Sites.bottomSite
+ : he.edge.region[he.side];
+ },
+
+ rightRegion: function(he) {
+ return he.edge == null
+ ? Sites.bottomSite
+ : he.edge.region[d3_voronoi_opposite[he.side]];
+ }
+ };
+
+ var Geom = {
+
+ bisect: function(s1, s2) {
+ var newEdge = {
+ region: {"l": s1, "r": s2},
+ ep: {"l": null, "r": null}
+ };
+
+ var dx = s2.x - s1.x,
+ dy = s2.y - s1.y,
+ adx = dx > 0 ? dx : -dx,
+ ady = dy > 0 ? dy : -dy;
+
+ newEdge.c = s1.x * dx + s1.y * dy
+ + (dx * dx + dy * dy) * .5;
+
+ if (adx > ady) {
+ newEdge.a = 1;
+ newEdge.b = dy / dx;
+ newEdge.c /= dx;
+ } else {
+ newEdge.b = 1;
+ newEdge.a = dx / dy;
+ newEdge.c /= dy;
+ }
+
+ return newEdge;
+ },
+
+ intersect: function(el1, el2) {
+ var e1 = el1.edge,
+ e2 = el2.edge;
+ if (!e1 || !e2 || (e1.region.r == e2.region.r)) {
+ return null;
+ }
+ var d = (e1.a * e2.b) - (e1.b * e2.a);
+ if (Math.abs(d) < 1e-10) {
+ return null;
+ }
+ var xint = (e1.c * e2.b - e2.c * e1.b) / d,
+ yint = (e2.c * e1.a - e1.c * e2.a) / d,
+ e1r = e1.region.r,
+ e2r = e2.region.r,
+ el,
+ e;
+ if ((e1r.y < e2r.y) ||
+ (e1r.y == e2r.y && e1r.x < e2r.x)) {
+ el = el1;
+ e = e1;
+ } else {
+ el = el2;
+ e = e2;
+ }
+ var rightOfSite = (xint >= e.region.r.x);
+ if ((rightOfSite && (el.side === "l")) ||
+ (!rightOfSite && (el.side === "r"))) {
+ return null;
+ }
+ return {
+ x: xint,
+ y: yint
+ };
+ },
+
+ rightOf: function(he, p) {
+ var e = he.edge,
+ topsite = e.region.r,
+ rightOfSite = (p.x > topsite.x);
+
+ if (rightOfSite && (he.side === "l")) {
+ return 1;
+ }
+ if (!rightOfSite && (he.side === "r")) {
+ return 0;
+ }
+ if (e.a === 1) {
+ var dyp = p.y - topsite.y,
+ dxp = p.x - topsite.x,
+ fast = 0,
+ above = 0;
+
+ if ((!rightOfSite && (e.b < 0)) ||
+ (rightOfSite && (e.b >= 0))) {
+ above = fast = (dyp >= e.b * dxp);
+ } else {
+ above = ((p.x + p.y * e.b) > e.c);
+ if (e.b < 0) {
+ above = !above;
+ }
+ if (!above) {
+ fast = 1;
+ }
+ }
+ if (!fast) {
+ var dxs = topsite.x - e.region.l.x;
+ above = (e.b * (dxp * dxp - dyp * dyp)) <
+ (dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b));
+
+ if (e.b < 0) {
+ above = !above;
+ }
+ }
+ } else /* e.b == 1 */ {
+ var yl = e.c - e.a * p.x,
+ t1 = p.y - yl,
+ t2 = p.x - topsite.x,
+ t3 = yl - topsite.y;
+
+ above = (t1 * t1) > (t2 * t2 + t3 * t3);
+ }
+ return he.side === "l" ? above : !above;
+ },
+
+ endPoint: function(edge, side, site) {
+ edge.ep[side] = site;
+ if (!edge.ep[d3_voronoi_opposite[side]]) return;
+ callback(edge);
+ },
+
+ distance: function(s, t) {
+ var dx = s.x - t.x,
+ dy = s.y - t.y;
+ return Math.sqrt(dx * dx + dy * dy);
+ }
+ };
+
+ var EventQueue = {
+ list: [],
+
+ insert: function(he, site, offset) {
+ he.vertex = site;
+ he.ystar = site.y + offset;
+ for (var i=0, list=EventQueue.list, l=list.length; i<l; i++) {
+ var next = list[i];
+ if (he.ystar > next.ystar ||
+ (he.ystar == next.ystar &&
+ site.x > next.vertex.x)) {
+ continue;
+ } else {
+ break;
+ }
+ }
+ list.splice(i, 0, he);
+ },
+
+ del: function(he) {
+ for (var i=0, ls=EventQueue.list, l=ls.length; i<l && (ls[i] != he); ++i) {}
+ ls.splice(i, 1);
+ },
+
+ empty: function() { return EventQueue.list.length === 0; },
+
+ nextEvent: function(he) {
+ for (var i=0, ls=EventQueue.list, l=ls.length; i<l; ++i) {
+ if (ls[i] == he) return ls[i+1];
+ }
+ return null;
+ },
+
+ min: function() {
+ var elem = EventQueue.list[0];
+ return {
+ x: elem.vertex.x,
+ y: elem.ystar
+ };
+ },
+
+ extractMin: function() {
+ return EventQueue.list.shift();
+ }
+ };
+
+ EdgeList.init();
+ Sites.bottomSite = Sites.list.shift();
+
+ var newSite = Sites.list.shift(), newIntStar;
+ var lbnd, rbnd, llbnd, rrbnd, bisector;
+ var bot, top, temp, p, v;
+ var e, pm;
+
+ while (true) {
+ if (!EventQueue.empty()) {
+ newIntStar = EventQueue.min();
+ }
+ if (newSite && (EventQueue.empty()
+ || newSite.y < newIntStar.y
+ || (newSite.y == newIntStar.y
+ && newSite.x < newIntStar.x))) { //new site is smallest
+ lbnd = EdgeList.leftBound(newSite);
+ rbnd = EdgeList.right(lbnd);
+ bot = EdgeList.rightRegion(lbnd);
+ e = Geom.bisect(bot, newSite);
+ bisector = EdgeList.createHalfEdge(e, "l");
+ EdgeList.insert(lbnd, bisector);
+ p = Geom.intersect(lbnd, bisector);
+ if (p) {
+ EventQueue.del(lbnd);
+ EventQueue.insert(lbnd, p, Geom.distance(p, newSite));
+ }
+ lbnd = bisector;
+ bisector = EdgeList.createHalfEdge(e, "r");
+ EdgeList.insert(lbnd, bisector);
+ p = Geom.intersect(bisector, rbnd);
+ if (p) {
+ EventQueue.insert(bisector, p, Geom.distance(p, newSite));
+ }
+ newSite = Sites.list.shift();
+ } else if (!EventQueue.empty()) { //intersection is smallest
+ lbnd = EventQueue.extractMin();
+ llbnd = EdgeList.left(lbnd);
+ rbnd = EdgeList.right(lbnd);
+ rrbnd = EdgeList.right(rbnd);
+ bot = EdgeList.leftRegion(lbnd);
+ top = EdgeList.rightRegion(rbnd);
+ v = lbnd.vertex;
+ Geom.endPoint(lbnd.edge, lbnd.side, v);
+ Geom.endPoint(rbnd.edge, rbnd.side, v);
+ EdgeList.del(lbnd);
+ EventQueue.del(rbnd);
+ EdgeList.del(rbnd);
+ pm = "l";
+ if (bot.y > top.y) {
+ temp = bot;
+ bot = top;
+ top = temp;
+ pm = "r";
+ }
+ e = Geom.bisect(bot, top);
+ bisector = EdgeList.createHalfEdge(e, pm);
+ EdgeList.insert(llbnd, bisector);
+ Geom.endPoint(e, d3_voronoi_opposite[pm], v);
+ p = Geom.intersect(llbnd, bisector);
+ if (p) {
+ EventQueue.del(llbnd);
+ EventQueue.insert(llbnd, p, Geom.distance(p, bot));
+ }
+ p = Geom.intersect(bisector, rrbnd);
+ if (p) {
+ EventQueue.insert(bisector, p, Geom.distance(p, bot));
+ }
+ } else {
+ break;
+ }
+ }//end while
+
+ for (lbnd = EdgeList.right(EdgeList.leftEnd);
+ lbnd != EdgeList.rightEnd;
+ lbnd = EdgeList.right(lbnd)) {
+ callback(lbnd.edge);
+ }
+}
+/**
+* @param vertices [[x1, y1], [x2, y2], …]
+* @returns triangles [[[x1, y1], [x2, y2], [x3, y3]], …]
+ */
+d3.geom.delaunay = function(vertices) {
+ var edges = vertices.map(function() { return []; }),
+ triangles = [];
+
+ // Use the Voronoi tessellation to determine Delaunay edges.
+ d3_voronoi_tessellate(vertices, function(e) {
+ edges[e.region.l.index].push(vertices[e.region.r.index]);
+ });
+
+ // Reconnect the edges into counterclockwise triangles.
+ edges.forEach(function(edge, i) {
+ var v = vertices[i],
+ cx = v[0],
+ cy = v[1];
+ edge.forEach(function(v) {
+ v.angle = Math.atan2(v[0] - cx, v[1] - cy);
+ });
+ edge.sort(function(a, b) {
+ return a.angle - b.angle;
+ });
+ for (var j = 0, m = edge.length - 1; j < m; j++) {
+ triangles.push([v, edge[j], edge[j + 1]]);
+ }
+ });
+
+ return triangles;
+};
+// Constructs a new quadtree for the specified array of points. A quadtree is a
+// two-dimensional recursive spatial subdivision. This implementation uses
+// square partitions, dividing each square into four equally-sized squares. Each
+// point exists in a unique node; if multiple points are in the same position,
+// some points may be stored on internal nodes rather than leaf nodes. Quadtrees
+// can be used to accelerate various spatial operations, such as the Barnes-Hut
+// approximation for computing n-body forces, or collision detection.
+d3.geom.quadtree = function(points, x1, y1, x2, y2) {
+ var p,
+ i = -1,
+ n = points.length;
+
+ // Type conversion for deprecated API.
+ if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint);
+
+ // Allow bounds to be specified explicitly.
+ if (arguments.length < 5) {
+ if (arguments.length === 3) {
+ y2 = x2 = y1;
+ y1 = x1;
+ } else {
+ x1 = y1 = Infinity;
+ x2 = y2 = -Infinity;
+
+ // Compute bounds.
+ while (++i < n) {
+ p = points[i];
+ if (p.x < x1) x1 = p.x;
+ if (p.y < y1) y1 = p.y;
+ if (p.x > x2) x2 = p.x;
+ if (p.y > y2) y2 = p.y;
+ }
+
+ // Squarify the bounds.
+ var dx = x2 - x1,
+ dy = y2 - y1;
+ if (dx > dy) y2 = y1 + dx;
+ else x2 = x1 + dy;
+ }
+ }
+
+ // Recursively inserts the specified point p at the node n or one of its
+ // descendants. The bounds are defined by [x1, x2] and [y1, y2].
+ function insert(n, p, x1, y1, x2, y2) {
+ if (isNaN(p.x) || isNaN(p.y)) return; // ignore invalid points
+ if (n.leaf) {
+ var v = n.point;
+ if (v) {
+ // If the point at this leaf node is at the same position as the new
+ // point we are adding, we leave the point associated with the
+ // internal node while adding the new point to a child node. This
+ // avoids infinite recursion.
+ if ((Math.abs(v.x - p.x) + Math.abs(v.y - p.y)) < .01) {
+ insertChild(n, p, x1, y1, x2, y2);
+ } else {
+ n.point = null;
+ insertChild(n, v, x1, y1, x2, y2);
+ insertChild(n, p, x1, y1, x2, y2);
+ }
+ } else {
+ n.point = p;
+ }
+ } else {
+ insertChild(n, p, x1, y1, x2, y2);
+ }
+ }
+
+ // Recursively inserts the specified point p into a descendant of node n. The
+ // bounds are defined by [x1, x2] and [y1, y2].
+ function insertChild(n, p, x1, y1, x2, y2) {
+ // Compute the split point, and the quadrant in which to insert p.
+ var sx = (x1 + x2) * .5,
+ sy = (y1 + y2) * .5,
+ right = p.x >= sx,
+ bottom = p.y >= sy,
+ i = (bottom << 1) + right;
+
+ // Recursively insert into the child node.
+ n.leaf = false;
+ n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
+
+ // Update the bounds as we recurse.
+ if (right) x1 = sx; else x2 = sx;
+ if (bottom) y1 = sy; else y2 = sy;
+ insert(n, p, x1, y1, x2, y2);
+ }
+
+ // Create the root node.
+ var root = d3_geom_quadtreeNode();
+
+ root.add = function(p) {
+ insert(root, p, x1, y1, x2, y2);
+ };
+
+ root.visit = function(f) {
+ d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2);
+ };
+
+ // Insert all points.
+ points.forEach(root.add);
+ return root;
+};
+
+function d3_geom_quadtreeNode() {
+ return {
+ leaf: true,
+ nodes: [],
+ point: null
+ };
+}
+
+function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
+ if (!f(node, x1, y1, x2, y2)) {
+ var sx = (x1 + x2) * .5,
+ sy = (y1 + y2) * .5,
+ children = node.nodes;
+ if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
+ if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
+ if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
+ if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
+ }
+}
+
+function d3_geom_quadtreePoint(p) {
+ return {
+ x: p[0],
+ y: p[1]
+ };
+}
+d3.time = {};
+
+var d3_time = Date;
+
+function d3_time_utc() {
+ this._ = new Date(arguments.length > 1
+ ? Date.UTC.apply(this, arguments)
+ : arguments[0]);
+}
+
+d3_time_utc.prototype = {
+ getDate: function() { return this._.getUTCDate(); },
+ getDay: function() { return this._.getUTCDay(); },
+ getFullYear: function() { return this._.getUTCFullYear(); },
+ getHours: function() { return this._.getUTCHours(); },
+ getMilliseconds: function() { return this._.getUTCMilliseconds(); },
+ getMinutes: function() { return this._.getUTCMinutes(); },
+ getMonth: function() { return this._.getUTCMonth(); },
+ getSeconds: function() { return this._.getUTCSeconds(); },
+ getTime: function() { return this._.getTime(); },
+ getTimezoneOffset: function() { return 0; },
+ valueOf: function() { return this._.valueOf(); },
+ setDate: function() { d3_time_prototype.setUTCDate.apply(this._, arguments); },
+ setDay: function() { d3_time_prototype.setUTCDay.apply(this._, arguments); },
+ setFullYear: function() { d3_time_prototype.setUTCFullYear.apply(this._, arguments); },
+ setHours: function() { d3_time_prototype.setUTCHours.apply(this._, arguments); },
+ setMilliseconds: function() { d3_time_prototype.setUTCMilliseconds.apply(this._, arguments); },
+ setMinutes: function() { d3_time_prototype.setUTCMinutes.apply(this._, arguments); },
+ setMonth: function() { d3_time_prototype.setUTCMonth.apply(this._, arguments); },
+ setSeconds: function() { d3_time_prototype.setUTCSeconds.apply(this._, arguments); },
+ setTime: function() { d3_time_prototype.setTime.apply(this._, arguments); }
+};
+
+var d3_time_prototype = Date.prototype;
+d3.time.format = function(template) {
+ var n = template.length;
+
+ function format(date) {
+ var string = [],
+ i = -1,
+ j = 0,
+ c,
+ f;
+ while (++i < n) {
+ if (template.charCodeAt(i) == 37) {
+ string.push(
+ template.substring(j, i),
+ (f = d3_time_formats[c = template.charAt(++i)])
+ ? f(date) : c);
+ j = i + 1;
+ }
+ }
+ string.push(template.substring(j, i));
+ return string.join("");
+ }
+
+ format.parse = function(string) {
+ var d = {y: 1900, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0},
+ i = d3_time_parse(d, template, string, 0);
+ if (i != string.length) return null;
+
+ // The am-pm flag is 0 for AM, and 1 for PM.
+ if ("p" in d) d.H = d.H % 12 + d.p * 12;
+
+ var date = new d3_time();
+ date.setFullYear(d.y, d.m, d.d);
+ date.setHours(d.H, d.M, d.S, d.L);
+ return date;
+ };
+
+ format.toString = function() {
+ return template;
+ };
+
+ return format;
+};
+
+function d3_time_parse(date, template, string, j) {
+ var c,
+ p,
+ i = 0,
+ n = template.length,
+ m = string.length;
+ while (i < n) {
+ if (j >= m) return -1;
+ c = template.charCodeAt(i++);
+ if (c == 37) {
+ p = d3_time_parsers[template.charAt(i++)];
+ if (!p || ((j = p(date, string, j)) < 0)) return -1;
+ } else if (c != string.charCodeAt(j++)) {
+ return -1;
+ }
+ }
+ return j;
+}
+
+var d3_time_zfill2 = d3.format("02d"),
+ d3_time_zfill3 = d3.format("03d"),
+ d3_time_zfill4 = d3.format("04d"),
+ d3_time_sfill2 = d3.format("2d");
+
+var d3_time_formats = {
+ a: function(d) { return d3_time_weekdays[d.getDay()].substring(0, 3); },
+ A: function(d) { return d3_time_weekdays[d.getDay()]; },
+ b: function(d) { return d3_time_months[d.getMonth()].substring(0, 3); },
+ B: function(d) { return d3_time_months[d.getMonth()]; },
+ c: d3.time.format("%a %b %e %H:%M:%S %Y"),
+ d: function(d) { return d3_time_zfill2(d.getDate()); },
+ e: function(d) { return d3_time_sfill2(d.getDate()); },
+ H: function(d) { return d3_time_zfill2(d.getHours()); },
+ I: function(d) { return d3_time_zfill2(d.getHours() % 12 || 12); },
+ j: function(d) { return d3_time_zfill3(1 + d3.time.dayOfYear(d)); },
+ L: function(d) { return d3_time_zfill3(d.getMilliseconds()); },
+ m: function(d) { return d3_time_zfill2(d.getMonth() + 1); },
+ M: function(d) { return d3_time_zfill2(d.getMinutes()); },
+ p: function(d) { return d.getHours() >= 12 ? "PM" : "AM"; },
+ S: function(d) { return d3_time_zfill2(d.getSeconds()); },
+ U: function(d) { return d3_time_zfill2(d3.time.sundayOfYear(d)); },
+ w: function(d) { return d.getDay(); },
+ W: function(d) { return d3_time_zfill2(d3.time.mondayOfYear(d)); },
+ x: d3.time.format("%m/%d/%y"),
+ X: d3.time.format("%H:%M:%S"),
+ y: function(d) { return d3_time_zfill2(d.getFullYear() % 100); },
+ Y: function(d) { return d3_time_zfill4(d.getFullYear() % 10000); },
+ Z: d3_time_zone,
+ "%": function(d) { return "%"; }
+};
+
+var d3_time_parsers = {
+ a: d3_time_parseWeekdayAbbrev,
+ A: d3_time_parseWeekday,
+ b: d3_time_parseMonthAbbrev,
+ B: d3_time_parseMonth,
+ c: d3_time_parseLocaleFull,
+ d: d3_time_parseDay,
+ e: d3_time_parseDay,
+ H: d3_time_parseHour24,
+ I: d3_time_parseHour24,
+ // j: function(d, s, i) { /*TODO day of year [001,366] */ return i; },
+ L: d3_time_parseMilliseconds,
+ m: d3_time_parseMonthNumber,
+ M: d3_time_parseMinutes,
+ p: d3_time_parseAmPm,
+ S: d3_time_parseSeconds,
+ // U: function(d, s, i) { /*TODO week number (sunday) [00,53] */ return i; },
+ // w: function(d, s, i) { /*TODO weekday [0,6] */ return i; },
+ // W: function(d, s, i) { /*TODO week number (monday) [00,53] */ return i; },
+ x: d3_time_parseLocaleDate,
+ X: d3_time_parseLocaleTime,
+ y: d3_time_parseYear,
+ Y: d3_time_parseFullYear
+ // ,
+ // Z: function(d, s, i) { /*TODO time zone */ return i; },
+ // "%": function(d, s, i) { /*TODO literal % */ return i; }
+};
+
+// Note: weekday is validated, but does not set the date.
+function d3_time_parseWeekdayAbbrev(date, string, i) {
+ return d3_time_weekdayAbbrevRe.test(string.substring(i, i += 3)) ? i : -1;
+}
+
+// Note: weekday is validated, but does not set the date.
+function d3_time_parseWeekday(date, string, i) {
+ d3_time_weekdayRe.lastIndex = 0;
+ var n = d3_time_weekdayRe.exec(string.substring(i, i + 10));
+ return n ? i += n[0].length : -1;
+}
+
+var d3_time_weekdayAbbrevRe = /^(?:sun|mon|tue|wed|thu|fri|sat)/i,
+ d3_time_weekdayRe = /^(?:Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday)/i;
+ d3_time_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
+
+function d3_time_parseMonthAbbrev(date, string, i) {
+ var n = d3_time_monthAbbrevLookup.get(string.substring(i, i += 3).toLowerCase());
+ return n == null ? -1 : (date.m = n, i);
+}
+
+var d3_time_monthAbbrevLookup = d3.map({
+ jan: 0,
+ feb: 1,
+ mar: 2,
+ apr: 3,
+ may: 4,
+ jun: 5,
+ jul: 6,
+ aug: 7,
+ sep: 8,
+ oct: 9,
+ nov: 10,
+ dec: 11
+});
+
+function d3_time_parseMonth(date, string, i) {
+ d3_time_monthRe.lastIndex = 0;
+ var n = d3_time_monthRe.exec(string.substring(i, i + 12));
+ return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;
+}
+
+var d3_time_monthRe = /^(?:January|February|March|April|May|June|July|August|September|October|November|December)/ig;
+
+var d3_time_monthLookup = d3.map({
+ january: 0,
+ february: 1,
+ march: 2,
+ april: 3,
+ may: 4,
+ june: 5,
+ july: 6,
+ august: 7,
+ september: 8,
+ october: 9,
+ november: 10,
+ december: 11
+});
+
+var d3_time_months = [
+ "January",
+ "February",
+ "March",
+ "April",
+ "May",
+ "June",
+ "July",
+ "August",
+ "September",
+ "October",
+ "November",
+ "December"
+];
+
+function d3_time_parseLocaleFull(date, string, i) {
+ return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
+}
+
+function d3_time_parseLocaleDate(date, string, i) {
+ return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
+}
+
+function d3_time_parseLocaleTime(date, string, i) {
+ return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
+}
+
+function d3_time_parseFullYear(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 4));
+ return n ? (date.y = +n[0], i += n[0].length) : -1;
+}
+
+function d3_time_parseYear(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+ return n ? (date.y = d3_time_century() + +n[0], i += n[0].length) : -1;
+}
+
+function d3_time_century() {
+ return ~~(new Date().getFullYear() / 1000) * 1000;
+}
+
+function d3_time_parseMonthNumber(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+ return n ? (date.m = n[0] - 1, i += n[0].length) : -1;
+}
+
+function d3_time_parseDay(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+ return n ? (date.d = +n[0], i += n[0].length) : -1;
+}
+
+// Note: we don't validate that the hour is in the range [0,23] or [1,12].
+function d3_time_parseHour24(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+ return n ? (date.H = +n[0], i += n[0].length) : -1;
+}
+
+function d3_time_parseMinutes(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+ return n ? (date.M = +n[0], i += n[0].length) : -1;
+}
+
+function d3_time_parseSeconds(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+ return n ? (date.S = +n[0], i += n[0].length) : -1;
+}
+
+function d3_time_parseMilliseconds(date, string, i) {
+ d3_time_numberRe.lastIndex = 0;
+ var n = d3_time_numberRe.exec(string.substring(i, i + 3));
+ return n ? (date.L = +n[0], i += n[0].length) : -1;
+}
+
+// Note: we don't look at the next directive.
+var d3_time_numberRe = /\s*\d+/;
+
+function d3_time_parseAmPm(date, string, i) {
+ var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase());
+ return n == null ? -1 : (date.p = n, i);
+}
+
+var d3_time_amPmLookup = d3.map({
+ am: 0,
+ pm: 1
+});
+
+// TODO table of time zone offset names?
+function d3_time_zone(d) {
+ var z = d.getTimezoneOffset(),
+ zs = z > 0 ? "-" : "+",
+ zh = ~~(Math.abs(z) / 60),
+ zm = Math.abs(z) % 60;
+ return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm);
+}
+d3.time.format.utc = function(template) {
+ var local = d3.time.format(template);
+
+ function format(date) {
+ try {
+ d3_time = d3_time_utc;
+ var utc = new d3_time();
+ utc._ = date;
+ return local(utc);
+ } finally {
+ d3_time = Date;
+ }
+ }
+
+ format.parse = function(string) {
+ try {
+ d3_time = d3_time_utc;
+ var date = local.parse(string);
+ return date && date._;
+ } finally {
+ d3_time = Date;
+ }
+ };
+
+ format.toString = local.toString;
+
+ return format;
+};
+var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ");
+
+d3.time.format.iso = Date.prototype.toISOString ? d3_time_formatIsoNative : d3_time_formatIso;
+
+function d3_time_formatIsoNative(date) {
+ return date.toISOString();
+}
+
+d3_time_formatIsoNative.parse = function(string) {
+ return new Date(string);
+};
+
+d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
+function d3_time_interval(local, step, number) {
+
+ function round(date) {
+ var d0 = local(date), d1 = offset(d0, 1);
+ return date - d0 < d1 - date ? d0 : d1;
+ }
+
+ function ceil(date) {
+ step(date = local(new d3_time(date - 1)), 1);
+ return date;
+ }
+
+ function offset(date, k) {
+ step(date = new d3_time(+date), k);
+ return date;
+ }
+
+ function range(t0, t1, dt) {
+ var time = ceil(t0), times = [];
+ if (dt > 1) {
+ while (time < t1) {
+ if (!(number(time) % dt)) times.push(new Date(+time));
+ step(time, 1);
+ }
+ } else {
+ while (time < t1) times.push(new Date(+time)), step(time, 1);
+ }
+ return times;
+ }
+
+ function range_utc(t0, t1, dt) {
+ try {
+ d3_time = d3_time_utc;
+ var utc = new d3_time_utc();
+ utc._ = t0;
+ return range(utc, t1, dt);
+ } finally {
+ d3_time = Date;
+ }
+ }
+
+ local.floor = local;
+ local.round = round;
+ local.ceil = ceil;
+ local.offset = offset;
+ local.range = range;
+
+ var utc = local.utc = d3_time_interval_utc(local);
+ utc.floor = utc;
+ utc.round = d3_time_interval_utc(round);
+ utc.ceil = d3_time_interval_utc(ceil);
+ utc.offset = d3_time_interval_utc(offset);
+ utc.range = range_utc;
+
+ return local;
+}
+
+function d3_time_interval_utc(method) {
+ return function(date, k) {
+ try {
+ d3_time = d3_time_utc;
+ var utc = new d3_time_utc();
+ utc._ = date;
+ return method(utc, k)._;
+ } finally {
+ d3_time = Date;
+ }
+ };
+}
+d3.time.second = d3_time_interval(function(date) {
+ return new d3_time(Math.floor(date / 1e3) * 1e3);
+}, function(date, offset) {
+ date.setTime(date.getTime() + Math.floor(offset) * 1e3); // DST breaks setSeconds
+}, function(date) {
+ return date.getSeconds();
+});
+
+d3.time.seconds = d3.time.second.range;
+d3.time.seconds.utc = d3.time.second.utc.range;
+d3.time.minute = d3_time_interval(function(date) {
+ return new d3_time(Math.floor(date / 6e4) * 6e4);
+}, function(date, offset) {
+ date.setTime(date.getTime() + Math.floor(offset) * 6e4); // DST breaks setMinutes
+}, function(date) {
+ return date.getMinutes();
+});
+
+d3.time.minutes = d3.time.minute.range;
+d3.time.minutes.utc = d3.time.minute.utc.range;
+d3.time.hour = d3_time_interval(function(date) {
+ var timezone = date.getTimezoneOffset() / 60;
+ return new d3_time((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
+}, function(date, offset) {
+ date.setTime(date.getTime() + Math.floor(offset) * 36e5); // DST breaks setHours
+}, function(date) {
+ return date.getHours();
+});
+
+d3.time.hours = d3.time.hour.range;
+d3.time.hours.utc = d3.time.hour.utc.range;
+d3.time.day = d3_time_interval(function(date) {
+ return new d3_time(date.getFullYear(), date.getMonth(), date.getDate());
+}, function(date, offset) {
+ date.setDate(date.getDate() + offset);
+}, function(date) {
+ return date.getDate() - 1;
+});
+
+d3.time.days = d3.time.day.range;
+d3.time.days.utc = d3.time.day.utc.range;
+
+d3.time.dayOfYear = function(date) {
+ var year = d3.time.year(date);
+ return Math.floor((date - year) / 864e5 - (date.getTimezoneOffset() - year.getTimezoneOffset()) / 1440);
+};
+d3_time_weekdays.forEach(function(day, i) {
+ day = day.toLowerCase();
+ i = 7 - i;
+
+ var interval = d3.time[day] = d3_time_interval(function(date) {
+ (date = d3.time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);
+ return date;
+ }, function(date, offset) {
+ date.setDate(date.getDate() + Math.floor(offset) * 7);
+ }, function(date) {
+ var day = d3.time.year(date).getDay();
+ return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);
+ });
+
+ d3.time[day + "s"] = interval.range;
+ d3.time[day + "s"].utc = interval.utc.range;
+
+ d3.time[day + "OfYear"] = function(date) {
+ var day = d3.time.year(date).getDay();
+ return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7);
+ };
+});
+
+d3.time.week = d3.time.sunday;
+d3.time.weeks = d3.time.sunday.range;
+d3.time.weeks.utc = d3.time.sunday.utc.range;
+d3.time.weekOfYear = d3.time.sundayOfYear;
+d3.time.month = d3_time_interval(function(date) {
+ return new d3_time(date.getFullYear(), date.getMonth(), 1);
+}, function(date, offset) {
+ date.setMonth(date.getMonth() + offset);
+}, function(date) {
+ return date.getMonth();
+});
+
+d3.time.months = d3.time.month.range;
+d3.time.months.utc = d3.time.month.utc.range;
+d3.time.year = d3_time_interval(function(date) {
+ return new d3_time(date.getFullYear(), 0, 1);
+}, function(date, offset) {
+ date.setFullYear(date.getFullYear() + offset);
+}, function(date) {
+ return date.getFullYear();
+});
+
+d3.time.years = d3.time.year.range;
+d3.time.years.utc = d3.time.year.utc.range;
+function d3_time_scale(linear, methods, format) {
+
+ function scale(x) {
+ return linear(x);
+ }
+
+ scale.invert = function(x) {
+ return d3_time_scaleDate(linear.invert(x));
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
+ linear.domain(x);
+ return scale;
+ };
+
+ scale.nice = function(m) {
+ var extent = d3_time_scaleExtent(scale.domain());
+ return scale.domain([m.floor(extent[0]), m.ceil(extent[1])]);
+ };
+
+ scale.ticks = function(m, k) {
+ var extent = d3_time_scaleExtent(scale.domain());
+ if (typeof m !== "function") {
+ var span = extent[1] - extent[0],
+ target = span / m,
+ i = d3.bisect(d3_time_scaleSteps, target);
+ if (i == d3_time_scaleSteps.length) return methods.year(extent, m);
+ if (!i) return linear.ticks(m).map(d3_time_scaleDate);
+ if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i;
+ m = methods[i];
+ k = m[1];
+ m = m[0].range;
+ }
+ return m(extent[0], new Date(+extent[1] + 1), k); // inclusive upper bound
+ };
+
+ scale.tickFormat = function() {
+ return format;
+ };
+
+ scale.copy = function() {
+ return d3_time_scale(linear.copy(), methods, format);
+ };
+
+ // TOOD expose d3_scale_linear_rebind?
+ return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+}
+
+// TODO expose d3_scaleExtent?
+function d3_time_scaleExtent(domain) {
+ var start = domain[0], stop = domain[domain.length - 1];
+ return start < stop ? [start, stop] : [stop, start];
+}
+
+function d3_time_scaleDate(t) {
+ return new Date(t);
+}
+
+function d3_time_scaleFormat(formats) {
+ return function(date) {
+ var i = formats.length - 1, f = formats[i];
+ while (!f[1](date)) f = formats[--i];
+ return f[0](date);
+ };
+}
+
+function d3_time_scaleSetYear(y) {
+ var d = new Date(y, 0, 1);
+ d.setFullYear(y); // Y2K fail
+ return d;
+}
+
+function d3_time_scaleGetYear(d) {
+ var y = d.getFullYear(),
+ d0 = d3_time_scaleSetYear(y),
+ d1 = d3_time_scaleSetYear(y + 1);
+ return y + (d - d0) / (d1 - d0);
+}
+
+var d3_time_scaleSteps = [
+ 1e3, // 1-second
+ 5e3, // 5-second
+ 15e3, // 15-second
+ 3e4, // 30-second
+ 6e4, // 1-minute
+ 3e5, // 5-minute
+ 9e5, // 15-minute
+ 18e5, // 30-minute
+ 36e5, // 1-hour
+ 108e5, // 3-hour
+ 216e5, // 6-hour
+ 432e5, // 12-hour
+ 864e5, // 1-day
+ 1728e5, // 2-day
+ 6048e5, // 1-week
+ 2592e6, // 1-month
+ 7776e6, // 3-month
+ 31536e6 // 1-year
+];
+
+var d3_time_scaleLocalMethods = [
+ [d3.time.second, 1],
+ [d3.time.second, 5],
+ [d3.time.second, 15],
+ [d3.time.second, 30],
+ [d3.time.minute, 1],
+ [d3.time.minute, 5],
+ [d3.time.minute, 15],
+ [d3.time.minute, 30],
+ [d3.time.hour, 1],
+ [d3.time.hour, 3],
+ [d3.time.hour, 6],
+ [d3.time.hour, 12],
+ [d3.time.day, 1],
+ [d3.time.day, 2],
+ [d3.time.week, 1],
+ [d3.time.month, 1],
+ [d3.time.month, 3],
+ [d3.time.year, 1]
+];
+
+var d3_time_scaleLocalFormats = [
+ [d3.time.format("%Y"), function(d) { return true; }],
+ [d3.time.format("%B"), function(d) { return d.getMonth(); }],
+ [d3.time.format("%b %d"), function(d) { return d.getDate() != 1; }],
+ [d3.time.format("%a %d"), function(d) { return d.getDay() && d.getDate() != 1; }],
+ [d3.time.format("%I %p"), function(d) { return d.getHours(); }],
+ [d3.time.format("%I:%M"), function(d) { return d.getMinutes(); }],
+ [d3.time.format(":%S"), function(d) { return d.getSeconds(); }],
+ [d3.time.format(".%L"), function(d) { return d.getMilliseconds(); }]
+];
+
+var d3_time_scaleLinear = d3.scale.linear(),
+ d3_time_scaleLocalFormat = d3_time_scaleFormat(d3_time_scaleLocalFormats);
+
+d3_time_scaleLocalMethods.year = function(extent, m) {
+ return d3_time_scaleLinear.domain(extent.map(d3_time_scaleGetYear)).ticks(m).map(d3_time_scaleSetYear);
+};
+
+d3.time.scale = function() {
+ return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
+};
+var d3_time_scaleUTCMethods = d3_time_scaleLocalMethods.map(function(m) {
+ return [m[0].utc, m[1]];
+});
+
+var d3_time_scaleUTCFormats = [
+ [d3.time.format.utc("%Y"), function(d) { return true; }],
+ [d3.time.format.utc("%B"), function(d) { return d.getUTCMonth(); }],
+ [d3.time.format.utc("%b %d"), function(d) { return d.getUTCDate() != 1; }],
+ [d3.time.format.utc("%a %d"), function(d) { return d.getUTCDay() && d.getUTCDate() != 1; }],
+ [d3.time.format.utc("%I %p"), function(d) { return d.getUTCHours(); }],
+ [d3.time.format.utc("%I:%M"), function(d) { return d.getUTCMinutes(); }],
+ [d3.time.format.utc(":%S"), function(d) { return d.getUTCSeconds(); }],
+ [d3.time.format.utc(".%L"), function(d) { return d.getUTCMilliseconds(); }]
+];
+
+var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats);
+
+function d3_time_scaleUTCSetYear(y) {
+ var d = new Date(Date.UTC(y, 0, 1));
+ d.setUTCFullYear(y); // Y2K fail
+ return d;
+}
+
+function d3_time_scaleUTCGetYear(d) {
+ var y = d.getUTCFullYear(),
+ d0 = d3_time_scaleUTCSetYear(y),
+ d1 = d3_time_scaleUTCSetYear(y + 1);
+ return y + (d - d0) / (d1 - d0);
+}
+
+d3_time_scaleUTCMethods.year = function(extent, m) {
+ return d3_time_scaleLinear.domain(extent.map(d3_time_scaleUTCGetYear)).ticks(m).map(d3_time_scaleUTCSetYear);
+};
+
+d3.time.scale.utc = function() {
+ return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat);
+};
+})();
diff --git a/visualize/static/d3.v2.min.js b/visualize/static/d3.v2.min.js
new file mode 100644
index 00000000..dddd929c
--- /dev/null
+++ b/visualize/static/d3.v2.min.js
@@ -0,0 +1,4 @@
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