jcharts-users

[jCharts-users] Question on Image Maps

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

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

Re: [jCharts-users] Question on Image Maps

[Nathaniel G. A. <nat...@ya...>]

Did you look at what the call to: "imageMapArea.toHTML( html.toString() )" does? It does what you
want.  take a look at the javadocs and/or source for ImageMapArea.toHTML( String ) to see what it
does.



--- Vikram Rajan <vr...@st...> wrote:
> I looked through the image map sample bundled with the download.
> 
> It seems that the following code:
> 
> <%
> StringBuffer html= new StringBuffer( 100 );
> ImageMap imageMap= (ImageMap) request.getAttribute( ChartServlet.IMAGE_MAP );
> 
> Iterator iterator= imageMap.getIterator();
> while( iterator.hasNext() )
> {
>  ImageMapArea imageMapArea= (ImageMapArea) iterator.next();
>  
>  html.append( "href=\"javascript:showValues(" );
>  html.append( imageMapArea.getValue() );
>  html.append( ",'" );
>  html.append( imageMapArea.getLengendLabel() );
>  html.append( "','" );
>  html.append( imageMapArea.getXAxisLabel() );
>  html.append( "');\"" );
> %>
>  <%=  imageMapArea.toHTML( html.toString() ) %>
> <% 
>  //---reuse same StringBuffer Object
>  html.delete( 0, html.length() );
> } 
> %>
> 
> produces something like:
> 
> href="javascript:showValues(1500.0,'Bugs','1995');"
> href="javascript:showValues(6880.0,'Bugs','1996');"
> href="javascript:showValues(4510.0,'Bugs','1997');"
> href="javascript:showValues(2600.0,'Bugs','1998');"
> href="javascript:showValues(1200.0,'Bugs','1999');"
> href="javascript:showValues(1580.0,'Bugs','2000');"
> href="javascript:showValues(8000.0,'Bugs','2001');"
> href="javascript:showValues(4555.0,'Bugs','2002');"
> href="javascript:showValues(4000.0,'Bugs','2003');"
> href="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="rect" coords="20,20,60,60" href="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
> 
> 
> 


=====
http://nathaniel-auvil.blog-city.com/

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