Erasing Objects - MapInfo_Pro - 2023

You have two choices when you want to remove some portion of the target map object. Use Erase Target to erase the portion of the target object that is overlapped by the cutter object. Use Erase Outside Target to remove the portion of the target object that is not overlapped by the cutter object.

For example, to add a lake to a region, create the lake as the cutter, position it appropriately and use the Erase Target command to remove that portion of the target object under the lake.

Both the Erase Target and Erase Outside Target commands support point, multipoint, and collection objects.

To erase map objects using Set Target:

1. Select the object(s) in an Editable layer to be the target.
2. On the SPATIAL tab, in the Edit group, click Set Target. The object(s) displays in a different style to indicate that it is the target object.
3. Select (or create and select) one or more map objects from any layer in the Map window to be the cutter object. The object must be a closed object.
4. On the SPATIAL tab, in the Edit group, click Erase, and Erase Target (or Erase Outside Target) to open the Data Disaggregation dialog box.
5. Choose the appropriate disaggregation method (or No Data) for each field in the Destination list.
   • Shift-click to apply the same method to consecutive fields
   • Ctrl-click for non-consecutive fields
6. Click OK.

   

   1 End result of Set Target - Erase Target. Circular object is removed.

   2 End result of Set Target - Erase Outside Target. All but circular object is removed.

MapInfo Pro will compute the new object and display it. Use the Info command to view the disaggregated data (if any) of the split objects.