Subtracting one polygon from another in MapInfo 15
From How to remove overlapping areas from a polygon in MapInfo Pro the procedure seems to be to:
- Select the region from which the overlapping areas will be removed.
- Objects > Set Target (32-bit) or Spatial > Set Target (64-bit).
- Select the overlapping regions.
- Objects > Erase (32-bit) or Spatial > Erase (64-bit).
The overlapping polygons will now be erased from original layer
Find the DrawTools application (this links to the 32-bit versions) and use the tool "Remove from selected region" which allows you to draw a polygon and use that to delete from the currently selected object.
It basically deletes the part of the selected object that is inside the drawn polygon.
DrawTools also comes for the 64-bit versions of MapInfo Pro, and can be downloaded directly from the MapInfo Marketplace.