I dont't think, Mapserver has the out-of-the-box possibility to render the overlapping parts of polygons in a special way. Perhaps you could try to create a separate layer (f. e. in Postgis with a special geo-query), that just shows these overlapping parts. But also then I think its difficult to query and to render the case, that three or more polygons do overlap.
Ludwig > >Message: 2 >Date: Mon, 21 Dec 2009 17:22:44 +0100 >From: Peter Hopfgartner <[email protected]> >Subject: [mapserver-users] Rendering overlapping data >To: [email protected] >Cc: d'Orio Pietro <[email protected]> >Message-ID: <[email protected]> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Dear list members > >We would like to visualize a layer with data, where polygons with >different classes may overlap. Using transparency, "new" colors are >introduced, e.g. if I overlap a blue and a red polygon I get an violet one. > >Is there a way to show overlapping polygons in stripes with cycling >colors, or as a checker board? How do people handle this? > >Regards, > >Peter > >-- > >Dott. Peter Hopfgartner > >R3 GIS Srl - GmbH >Via Johann Kravogl-Str. 2 >I-39012 Meran/Merano (BZ) >Email: [email protected] >Tel. : +39 0473 494949 >Fax : +39 0473 069902 >www : http://www.r3-gis.com _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
