Martin Lewis <MLewis <at> ngms.eu.com> writes:
> It seems that when it was originally converted to GDAL, the previous > engineer used the same 'bbox' parameters in the DataWindow extents. The > original 'width' and 'height' values are passed in the SizeX and SizeY tags > in the XML > > From what you are suggesting, this is totally wrong usage for these > parameters in the XML. No, I just made a wrong guess. You are allowed to tweak with the XML file and it should work if the XML is created dynamically and correctly for each request. For preventing the second request just take out the blocksize elements or better, put them to suit with the limits set by the WMS server. If you do not know those limits, they are easy to test. Width=953 is OK here http://demo.mapserver.org/cgi-bin/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&BBOX=-180,-90,180,90&SRS=EPSG:4326&WIDTH=953&HEIGHT=480&LAYERS=bluemarble,continents,country_bounds,cities&STYLES=&FORMAT=image/png&TRANSPARENT=true but width=3000 will give an error; iterate and you will find that the server is using the Mapserver default value 2048. -Jukka Rahkonen- _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
