Hi I have the following problem: I have in grass 6.4.1 two polygon-vector layers (div_14 and nutzungsz).The result should be the area oft the layer div_14 not covered by the areas of the layer nutzungsz. So what i did was:
v.overlay -t ainput=div_14 atype=area alayer=1 binput=nutzungsz btype=area blayer=1 output=div_15 operator=not -overwrite Now in the layer I get (div_15), i miss a large area which is NOT covered by the layer nutzungsz. So there is something wrong. You can get the data i used ether as grass location (http:// http://asmaron.homelinux.net/grass/problem.zip) or as shapes (http://asmaron.homelinux.net/grass/shp.zip ) Is this a bug in the grass modul (v.overlay) or is it a bug in the data? My System: GRASS 6.4.1 (2011) Linux 2.6.32-37-server (ubuntu) Thanks a lot Martin
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