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  28  <H3><A NAME="8_3_6">8.3.6 Image maps</A></H3>
  29  <P> If you have specified markers for the polar plot (by setting the
  30   mark property of the plot) each marker can be a hot spot in a client
  31   side image map. The target URL are as usual specified with the
  32   SetCSIMTargets() as the following short code excerpt shows<DIV class="phpscript">
  33  <CODE><FONT color="#000000"> <FONT color="#0000BB">&nbsp;</FONT><FONT color="#FF8000">
  34  //&nbsp;Start&nbsp;by&nbsp;specifying&nbsp;the&nbsp;proper&nbsp;URL&nbsp;targets
  35  <BR></FONT><FONT color="#0000BB">$targets&nbsp;</FONT><FONT color="#007700">
  36  =&nbsp;array(</FONT><FONT color="#DD0000">&quot;#1&quot;</FONT><FONT color="#007700">,</FONT><FONT
  37  color="#DD0000">&quot;#2&quot;</FONT><FONT color="#007700">,&nbsp;.......&nbsp;);
  38  <BR></FONT><FONT color="#0000BB">$polarplot&nbsp;</FONT><FONT color="#007700">
  39  =&nbsp;new&nbsp;</FONT><FONT color="#0000BB">PoalrPlot</FONT><FONT color="#007700">
  40  (</FONT><FONT color="#0000BB">$data</FONT><FONT color="#007700">);
  41  <BR></FONT><FONT color="#0000BB">$polarplot</FONT><FONT color="#007700">
  42  -&gt;</FONT><FONT color="#0000BB">mark</FONT><FONT color="#007700">-&gt;</FONT><FONT
  43  color="#0000BB">SetType</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
  44  MARK_SQUARE</FONT><FONT color="#007700">);
  45  <BR></FONT><FONT color="#0000BB">$polarplot</FONT><FONT color="#007700">
  46  -&gt;</FONT><FONT color="#0000BB">SetCSIMTargets</FONT><FONT color="#007700">
  47  (</FONT><FONT color="#0000BB">targets</FONT><FONT color="#007700">);
  48  <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-&gt;</FONT><FONT
  49  color="#0000BB">Add</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
  50  $polarplot</FONT><FONT color="#007700">);
  51  <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-&gt;</FONT><FONT
  52  color="#0000BB">StrokeCSIM</FONT><FONT color="#007700">();</FONT><FONT color="#0000BB">
  53  </FONT></FONT></CODE></DIV></P>
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