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I have used v.overlay option=not to find the intersection between two very large polygon layers. When I run v.build -e errors=filename_err I get

WARNING: Number of incorrect boundaries: 2
Using native format
Checking for topological errors...
Intersections: 492
WARNING: Number of boundary intersections: 492
WARNING: Skipping further checks because of incorrect boundaries

There are at least 494 errors shown on the errors file. Is there a direct way to identify the two incorrect boundaries so I can fix them?

  • I used a small negative buffer (-0.1m) to remove errors and artefacts. – vinh Sep 17 at 11:34

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