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Java Forum / General / January 2007Image maps for dynamic images
Can we create an image map for a dynamically generated JPEG image. example: My program generates a bar chart as a JPEG image. I want to link the bars of the chart to screens displaying corresponding data. > Can we create an image map for a dynamically generated JPEG image. > example: My program generates a bar chart as a JPEG image. I want to > link the bars of the chart to screens displaying corresponding data. Define "my program" - a web app? Surely that's what you mean, since image maps usually imply HTML/web is being used... hemarangain@gmail.com wrote: >> Can we create an image map for a dynamically generated JPEG image. >> example: My program generates a bar chart as a JPEG image. I want to >> link the bars of the chart to screens displaying corresponding data. > Define "my program" - a web app? Surely that's what you mean, since > image maps usually imply HTML/web is being used... Assuming that's true, you define a standard map element in the JSP: (untested) <img src="Display?image=${image}" usemap="barlinks" ... /> <map name="barlinks"> <c:forEach var="barloc" items="${imagebars}" > <area href="${barloc.href}" coords="${barloc.coords}" /> </c:forEach> </map> Display would be a servlet that streams the jpeg to response.out. - Lew On Jan 30, 8:00 am, hemarang...@gmail.com wrote: > Can we create an image map for a dynamically generated JPEG image. > example: My program generates a bar chart as a JPEG image. I want to > link the bars of the chart to screens displaying corresponding data. Not sure if cost is a factor but check out http://www.corda.com/ products/popchart/ We use that on our servers to create graphs/charts and I believe you can have links for data points. Hope that helps Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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