Hi Andrea,
in the meantime we developed such a plugin at the Fraunhofer Institute IITB / IMT
in the context of an environmental information system. Last Friday I got the OK from
our management that I may give it back to the GeoServer community. How
would be the procedure to do so. Please can you give me some advice.
The plugin is based on GeoTools 2.3.4. The entire package sources, ant build, eclipse project,
dependent libraries are about 9 MB zipped. The plugin itself just consists of two class files.
The plugin is an extension of the WMS service where the format should take the value
"application/clickable".
It then produces for the given layer the HTML image map contents,e.g.
http://localhost/geoserver/wms?WIDTH=390&HEIGHT=519&SRS=EPSG%3A31467&LAYERS=bw%3AAUSWAHL&STYLES=&FORMAT=application%2Fclickable&TILESORIGIN=3371598.610003352%2C5253151.231935829&TRANSPARENT=true&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&BBOX=3375648.8250244893,5215038.765401398,3629148.8250244893,5552388.765401398&cql_Filter=SESSION_NR=%221%22=>
<area shape="circ" coords="81,413,3" title="FB 30 ETZIBODEN, GOERWIHL" />
...
<area shape="circ" coords="30,406,3" title="QSS HERTINGERQU.1+2, KANDERN" />
So far only circles are supported.
We currently use it for up to 3000 points and it performs quite good.
Regards
Robert
