[jCharts-users] Re: Question on Image Maps

[Vikram R. <vr...@st...>]

Nathan, please reply to this one. If the image map implementation needs =
to be changed, I could then go ahead and do and share the code with you.

thanks
Vikram
  ----- Original Message -----=20
  From: Vikram Rajan=20
  To: jCharts User List=20
  Sent: Wednesday, May 07, 2003 2:51 PM
  Subject: Question on Image Maps


  I looked through the image map sample bundled with the download.

  It seems that the following code:

  <%
  StringBuffer html=3D new StringBuffer( 100 );
  ImageMap imageMap=3D (ImageMap) request.getAttribute( =
ChartServlet.IMAGE_MAP );

  Iterator iterator=3D imageMap.getIterator();
  while( iterator.hasNext() )
  {
   ImageMapArea imageMapArea=3D (ImageMapArea) iterator.next();
  =20
   html.append( "href=3D\"javascript:showValues(" );
   html.append( imageMapArea.getValue() );
   html.append( ",'" );
   html.append( imageMapArea.getLengendLabel() );
   html.append( "','" );
   html.append( imageMapArea.getXAxisLabel() );
   html.append( "');\"" );
  %>
   <%=3D  imageMapArea.toHTML( html.toString() ) %>
  <%=20
   //---reuse same StringBuffer Object
   html.delete( 0, html.length() );
  }=20
  %>

  produces something like:

  href=3D"javascript:showValues(1500.0,'Bugs','1995');"
  href=3D"javascript:showValues(6880.0,'Bugs','1996');"
  href=3D"javascript:showValues(4510.0,'Bugs','1997');"
  href=3D"javascript:showValues(2600.0,'Bugs','1998');"
  href=3D"javascript:showValues(1200.0,'Bugs','1999');"
  href=3D"javascript:showValues(1580.0,'Bugs','2000');"
  href=3D"javascript:showValues(8000.0,'Bugs','2001');"
  href=3D"javascript:showValues(4555.0,'Bugs','2002');"
  href=3D"javascript:showValues(4000.0,'Bugs','2003');"
  href=3D"javascript:showValues(6120.0,'Bugs','2004');"

  But this is not the complete area tag. Is there some method that will =
let me get something like:

  <area shape=3D"rect" coords=3D"20,20,60,60" =
href=3D"javascript:showValues(6120.0,'Bugs','2004');">

  The methods that would help in generating this seem to be protected or =
non-existent. Am I missing something?

  - Vikram