Frank,

The trick is to use the Set Target to specify which object(s) to alter.
This is how to do it:

1. Make the layer with the region to to be cut editable
2. Select the region to cut
3. Select the menu item Objects > Set Target (Ctrl + T)
4. Select the region to cut with
5. Select the menu item 
        - Objects > Erase to erase the overlapping area
        - Objects > Erase Outside to erase the not overlapping area

HTH,
Peter Horsbøll Møller
GIS Developer, MTM
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-----Original Message-----
From: Frank Aaron (TX/EUS) [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, July 26, 2005 10:25 PM
To: [email protected]
Subject: MI-L Region Overlap


Hi,

Does anyone know of a way to specify which region to have the overlap 
subtracted or removed from? Example: I have two polygons with overlap and are 
not equal in size - used the Clean Objects Tool to excise the overlap. 
Unfortunately, I am removing the overlap from the wrong polygon - have tried 
different options but to no avail. I am assuming that there is some mechanism 
by which MI decides which polygon is going to lose the area. BR,

Frank Aaron, MSc. Physics, MSEE
Staff Wireless Systems Engineer, RF Engineering Services Ericsson USA Global 
Services North America
Tel:      (972) 583-0112
Fax:     (972) 583-2273
Mobile: (972) 679-9291
mail to: [EMAIL PROTECTED]


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