Dear Geotools addicts,in the context of a project dedicated to web thematic mapping (http://geosysin.iict.ch/trac/wiki/GOWS), we are leading some experimentations with SLD. One of these concerns the configuration of a SLD for the creation of a thematic map with proportionnal circles. We use Geoserver to run our tests (while Geoserver uses Geotools, therefore I send this post here).
So, here is the SLD : http://geosysin.iict.ch/svn/gows/sld/symb_prop_OUI_EEE_92_ONU_02.sld There a screenshot of the map result : http://geosysin.iict.ch/svn/gows/overlapping_stack_rendering.png
We're faced to a common problem of rendering engines when drawing location-based graphical objects (like circles) upon a map. One way to solve this is to force to manage centroids in a separate layer of points. Another way concerns the rendering engine itself, by doing the rendering of all features (yellow polygons in the example), then all objects (all orange circles) and finaly merging all.
What are your opinions about that ? Olivier Ertz.
begin:vcard fn:Olivier Ertz n:Ertz;Olivier org:HEIG-VD;IICT geo.SYSIN email;internet:[EMAIL PROTECTED] url:http://geosysin.iict.ch version:2.1 end:vcard
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