Hello, the brilliant osm coastline tool from Jochen Topf (http://blog.jochentopf.com/2012-04-19-more-coastlines-stuff.html) enables for creating nice ocean or landcover polygons from Openstreetmap data. Well, this is where my mapserver problem starts...
For illustration of the problem I just created ocean polygons around canary islands http://home.geggus.net/pub/ocean-canary-islands.zip They are in sperical mercator using a huge overlap of 30meters to avoid artifacts. However artifacts (which seem to depend on scale) still arise: http://home.geggus.net/pub/ocean.png Here is the mapfile and shp2img command I used for rendering: shp2img -o ocean.png -m ocean.map -e -1917656.09 3248262.91 -1839384.59 3326534.41 -s 512 512 MAP OUTPUTFORMAT NAME agg DRIVER AGG/PNG8 FORMATOPTION "INTERLACE=OFF" MIMETYPE "image/png" END EXTENT -180 -85 180 85 IMAGECOLOR 255 0 0 WEB METADATA "ows_enable_request" "*" wms_srs "EPSG:4326 EPSG:3857" END END PROJECTION "init=epsg:3857" END LAYER PROCESSING "CLOSE_CONNECTION=DEFER" NAME "ocean" TYPE POLYGON STATUS ON DATA "ocean-canary-islands" PROJECTION "init=epsg:3857" END CLASS STYLE COLOR 128 255 255 END END # of class END # of layer END The only workaround I found so far is to use an outline: OUTLINECOLOR 128 255 255 WIDTH 1 Is this a bug in mapserver or is there something else which I can do? Sven -- "Ich fürchte mich nicht vor der Rückkehr der Faschisten in der Maske der Faschisten, sondern vor der Rückkehr der Faschisten in der Maske der Demokraten" (Theodor W. Adorno) /me is giggls@ircnet, http://sven.gegg.us/ on the Web _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
