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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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	<TITLE>rrdFlotMatrix module</TITLE>
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<H1 CLASS="western">rrdFlotMatrix module</H1>
<TABLE WIDTH=50% CELLPADDING=2 CELLSPACING=2>
	<TR>
		<TD>
			<HR>
			<P>The <A HREF="../../src/lib/rrdFlotMatrix.js">rrdFlotMatrix Javascript
			module</A> implements a class used to represents a DS from a list of similar 
			<A HREF="http://oss.oetiker.ch/rrdtool/">RDD archives</A> 
	                as a <A HREF="http://code.google.com/p/flot/">Flot</A> plot.</P>
		        <P>All RRDs must have the same step, the same DS names and the same number of RRAs.</P>
			<HR>
		</TD>
	</TR>
</TABLE>
<H2 CLASS="heading-2-western">Overview</H2>
<P>This module provide a single class: <A HREF="#rrdFlotMatrix">rrdFlotMatrix</A>.</P>
<P>Given a 
<A HREF="rrdFile_js.html#RRDFile">RRDFile</A> object, this class
creates an interactive
<A HREF="http://code.google.com/p/flot/">Flot</A> plot.</P>

<P>In order to use this module, you also need to include:
<UL>
 <LI><A HREF="rrdFlotSupport_js.html">rrdFlotSupport.js</A>
 <LI><A HREF="http://code.google.com/p/flot/">jquery.flot.js</A>
 <LI><A HREF="http://jquery.com/">jquery.js</A>
</UL></P>

<H2 CLASS="heading-2-western"><A NAME="rrdFlotMatrix"></A>Class rrdFlotMatrix</H2>
<P>The rrdFlotMatrix constructor has two to five arguments:</P>
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					<P ALIGN=LEFT>Argument</P>
				</TH>
				<TH WIDTH=80%>
					<P ALIGN=LEFT>Description</P>
				</TH>
			</TR>
		</THEAD>
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				<TD WIDTH=20%>
					<P>html_id</P>
				</TD>
				<TD WIDTH=80%>
					<P>ID of a HTML element, possibly a DIV.</P>
				</TD>
			</TR>
			<TR VALIGN=TOP>
				<TD WIDTH=20%>
					<P>rrd_files</P>
				</TD>
				<TD WIDTH=80%>
				        <P>A list of RRDs. Each element of the list contains a [rrd_id,rrd_file] pair.
				           <ul>
					    <li>rrd_id - Logical name for the RRD.
				            <li>rrd_file -An object of type <A HREF="rrdFile_js.html#RRDFile">RRDFile</A> or equivalent.
					   </ul>
					</P>
				</TD>
			</TR>
			<TR VALIGN=TOP>
				<TD WIDTH=20%>
					<P>ds_list (optional)</P>
				</TD>
				<TD WIDTH=80%>
				        <P>A list of DSes. Each element of the list contains a [ds_id,ds_title] pair.
				           <ul>
					    <li>ds_id - Logical name for the DS (as accepted by
                                                        <A HREF="rrdFile_js.html#RRDFile">RRDFile.getDS()</A>).
				            <li>ds_title - Name to display to the user.
					   </ul>
					</P>
				        <P>If undefined, all the DS's of the RRD will be used.</P>
				</TD>
			</TR>
			<TR VALIGN=TOP>
				<TD WIDTH=20%>
					<P>graph_options (optional)</P>
				</TD>
				<TD WIDTH=80%>
					<P>Global graphing options. See
				           <A HREF="http://code.google.com/p/flot/">Flot documentation</A>
				           for more details.</P>
                                        <P>The recognized elements and the default values are:
<PRE>
  graph_options = {
    legend: {position:"nw",noColumns:3},
    lines: { show:true },
    yaxis: { autoscaleMargin: 0.20},
  };
</PRE></P>
				</TD>
			</TR>
			<TR VALIGN=TOP>
				<TD WIDTH=20%>
					<P>rrd_graph_options (optional)</P>
				</TD>
				<TD WIDTH=80%>
					<P>Dictionary of graphing options. This must be a dictionary of rrd_id.
				           Each element of the dictionary contains graphing options. See
				           <A HREF="http://code.google.com/p/flot/">Flot documentation</A>
				           for more details.</P>
                                        <P>The recognized elements and the default values are:
<PRE>
   {
     title: label  or rrd_name                          // this is what is displayed in the checkboxes
     checked: true                                      // boolean
     label: title or rrd_name                           // this is what is displayed in the legend
     color: rrd_index                                   // see Flot docs for details
     lines: { show:true, fill: true, fillColor:color }  // see Flot docs for details
   }
</PRE></P>
				</TD>
			</TR>
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<P>Once instatiated, the object will automatically draw the plot and handle user interaction.</P>
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