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Oct
22
comment Does a polygon in a layer intersect with another polygon in the same layer
@blah238 thanks, the links and discussions are helpful, if you could edit your answer to reflect yes or no to the question, we can close it.
Oct
22
comment Does a polygon in a layer intersect with another polygon in the same layer
@blah238 This is out of curiosity. I have heard about ArcGIS but not used.
Oct
22
comment Does a polygon in a layer intersect with another polygon in the same layer
@blah238 There can be overlapping features in a map for example two rivers represented as polygons can criss-cross as such producing overlap. But it is not mandatory to create overlapping polygons for this. The two rivers can be represented as 3 polygons; 2 polygons for original river and 1 for the intersecting polygons.
Oct
22
comment Does a polygon in a layer intersect with another polygon in the same layer
@blah238 i have modified to clarify my question.
Jan
27
comment Looking for large GML files containing vector polygon data
I need to test polygon overlay over large data sets, so the two layers that I need should be intersecting.
Jan
21
comment Looking for compute intensive GIS vector operations
@underdark for all intensive operations.