Hi, I know mapserver uses a point-in-polygon method to find a feature given a set of co-ordinates, but can it do the same thing reversed? For example. Each polygon I draw has a number associated with it which is in a "dbf" file with the same name as the "shp" file that mapserver uses to draw the polygons. My current map file allows me to fetch that unique number whenever I pass the co-ordinates of any point inside that polygon (mapserver uses the point-in-polygon method to fetch me the polygonID). The query I use is
http://127.0.0.1:8123/cgi-bin/mapserv.exe?&map=C:/ms4w/apps/workshop-5.0/testMap.map&mode=query&mapxy=-77.098617 38.87795 where mapxy keeps changing based on the user's click. The html template I send just has the variable name [polygonID] which helps me get the polygon ID of the point I specify in the mapxy variable. Now, is there a way in which I can send this polygonID to mapserver and get hold of any point (perhaps the centroid) inside of this polygon? Can someone point me in the right direction here? Thanks a lot. -Varun _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users