VERIFIED SOLUTION i

How to remove overlapping areas from a polygon in MapInfo Pro

Products affected: MapInfo Pro, MapInfo Discover bundle

 
1. Select the region from which the overlapping areas will be removed.
2. Objects > Set Target (32-bit) or Spatial > Set Target (64-bit).
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3. Select the overlapping regions.
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4. Objects > Erase (32-bit) or Spatial > Erase (64-bit).

The overlapping polygons will now be erased from original layer:
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UPDATED:  April 1, 2017