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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Specifying targets for image map plots</title><link rel="stylesheet" type="text/css" href="manual.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.0"><link rel="home" href="index.html" title="JpGraph Manual"><link rel="up" href="ch10.html" title="Chapter 10. Using CSIM (Client side image maps)"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Specifying targets for image map plots</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center">Chapter 10. Using CSIM (Client side image maps)</th><td width="20%" align="right"> </td></tr></table><hr></div><div class="sect1" title="Specifying targets for image map plots"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2535910"></a>Specifying targets for image map plots</h2></div></div></div>
<p>To turn a standard image script into a CSIM script the first thing needed to do is
to supply the appropriate URL targets for the hotspots in the image. What the
hotspots represent depends on the type of plot. CSIM is supported by all graph
types. </p>
<p>To specify a URI link for each hotspot the <code class="code">SetCSIMTargets()</code> method is
used on the graph object that should be given a hotspot.</p>
<p>There are two arguments to this method</p>
<p>
</p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<p><code class="code">$aTargets</code>, an array of valid URL targets. One URL per hot
spot, for example if you have a 10 values bar plot you need 10 URLs. If
the <code class="code">SetCSIMTarget()</code> is applied to, for example, a text then
only one URL target should be specified.</p>
</li><li class="listitem">
<p><code class="code">$aAlts</code>, an array of valid alt-texts. Many browsers (but
not all) will show this text string if the mouse hovers over a
hotspot.</p>
</li></ol></div><p>
</p>
<div class="sect2" title="Creating popup-windows as targets for CSIM"><div class="titlepage"><div><div><h3 class="title"><a name="id2535974"></a>Creating popup-windows as targets for CSIM</h3></div></div></div>
<p>URL targets specified will be opened by the browser as usual, i.e. it will
replace the current HTML page. Another common usage pattern is to opena popup
window, perhaps with a zoomed version of a graph. This can be done by adding
some javascript in the target URL. If the URL, for example, is specified
as</p>
<p>
</p><pre class="screen">$target = "...";
$targetURL = "javascript:window.open('$target?id=%d','_new','width=500,height=300');void(0)"</pre><p>
</p>
<p>clicking on a target will now open a separate window with the specified width
and height. The <code class="code">$target</code> variable must be set to the wanted
URL.</p>
</div>
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