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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Chapter 10. Using CSIM (Client side image maps)</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="pt02.html" title="Part II. Basic graph creation"></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">Chapter 10. Using CSIM (Client side image maps)</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center">Part II. Basic graph creation</th><td width="20%" align="right"> </td></tr></table><hr></div><div class="chapter" title="Chapter 10. Using CSIM (Client side image maps)"><div class="titlepage"><div><div><h2 class="title"><a name="chap.using-csim"></a>Chapter 10. Using CSIM (Client side image maps)</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="ch10.html#id2535547">10.1. The principles</a></span></dt><dt><span class="sect1"><a href="ch10s02.html">10.2. The basic structure of an image map script</a></span></dt><dt><span class="sect1"><a href="ch10s03.html">10.3. Specifying targets for image map plots</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch10s03.html#id2535974">10.3.1. Creating popup-windows as targets for CSIM</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch10s04.html">10.4. Using StrokeCSIM()</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch10s04.html#id2536113">10.4.1. Optional argument to StrokeCSIM()</a></span></dt><dt><span class="sect2"><a href="ch10s04.html#id2536192">10.4.2. How does StrokeCSIM() work?</a></span></dt><dt><span class="sect2"><a href="ch10s04.html#id2536305">10.4.3. Image maps and the cache system</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch10s05.html">10.5. Getting hold of the image map</a></span></dt><dt><span class="sect1"><a href="ch10s06.html">10.6. Mixing several CSIM images in an HTML page with text</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch10s06.html#sec2.adding-csim-in-html">10.6.1. Adding one CSIM graph in a HTML page</a></span></dt><dt><span class="sect2"><a href="ch10s06.html#id2536476">10.6.2. Adding multiple CSIM graphs in a HTML page</a></span></dt></dl></dd></dl></div>
<p>Image maps makes it possible to create images with "active" areas that will react for
a mouse-click. It is then up to the designer to decide what actions should be taken.
Image map is often used to create drill-down charts where it is possible to dynamically
zoom into an image. Image maps is part of the HTML standard.</p>
<p>There are actually two types of images maps, client and server-side. This refers to
where the actual processing of the image click happens. Without doubt the best (and most
commonly used) type is the client side. This is also what the library supports. In the
remainder of this manual this will be referred to as <span class="bold"><strong>CSIM</strong></span>, <span class="bold"><strong>C</strong></span>lient <span class="bold"><strong>S</strong></span>ide <span class="bold"><strong>I</strong></span>mage <span class="bold"><strong>M</strong></span>aps.</p>
<div class="sect1" title="The principles"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2535547"></a>The principles</h2></div></div></div>
<p>Image maps works so that each hotspot area in the graph that should be used must
have an associated URL. When the user clicks somewhere in that particular hotspot
area the browser will open the specified URL. Typical hotspot areas in the graphs
are</p>
<p>
</p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<p>Texts, for example titles</p>
</li><li class="listitem">
<p>Markers in line graphs</p>
</li><li class="listitem">
<p>Slices in pie graphs</p>
</li><li class="listitem">
<p>Legends</p>
</li><li class="listitem">
<p>Bars in barplots</p>
</li><li class="listitem">
<p>etc.</p>
</li></ol></div><p>
</p>
<p>The way the CSIM HTML standard works is that the HTML page must have a section
with coordinates that defines the various hotspots together with the associated URL
that should be called. Each section of coordinates are connected to a specific image
that is included with a standard <span class="markup">&lt;img&gt;</span> by a common id. This will
now add some complexity since the library must return an HTML page for the
coordinates and not image data as normal for the library. How this is done is the
topic of the next section.</p>
<p>A number of examples of CSIM graphs are included in the
<code class="filename">Examples/</code> directory. Some of the available examples are
listed in <a class="xref" href="ch10.html#tab.csim-examples-name" title="Table 10.1. CSIM Examples (in Examples/ directory)">Table 10.1. CSIM Examples (in Examples/ directory)</a></p>
<p>
</p><div class="table"><a name="tab.csim-examples-name"></a><p class="title"><b>Table 10.1. CSIM Examples (in Examples/ directory)</b></p><div class="table-contents">
<table summary="CSIM Examples (in Examples/ directory)" border="0"><colgroup><col class="c1"><col class="c2"></colgroup><thead><tr><th colspan="2">CSIM Examples (in Examples/ directory)</th></tr></thead><tbody><tr><td><code class="filename">bar_csimex1.php</code></td><td><code class="filename">bar_csimex2.php</code></td></tr><tr><td><code class="filename">bar_csimex3.php</code></td><td><code class="filename">barline_csimex1.php</code></td></tr><tr><td><code class="filename">barlinefreq_csimex1.php</code></td><td><code class="filename">boxstockcsimex1.php</code></td></tr><tr><td><code class="filename">ganttcsimex01.php</code></td><td><code class="filename">ganttcsimex02.php</code></td></tr><tr><td><code class="filename">imgmarkercsimex1.php</code></td><td><code class="filename">pie3d_csimex1.php</code></td></tr><tr><td><code class="filename">piec_csimex1.php</code></td><td><code class="filename">pie_csimex1.php</code></td></tr><tr><td><code class="filename">scatter_csimex1.php</code></td><td><code class="filename">titlecsimex01.php</code></td></tr></tbody></table>
</div></div><p><br class="table-break">
</p>
<p>In order to easily access all of these examples it is possible to call the
<code class="filename">testsuit.php</code> example with an additional argument
"<code class="code">t=2</code>". By following the link
"<code class="filename">testsuit.php?t=2</code>" a separate window will open with all the
possible CSIM examples.</p>
</div>
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