Frequently asked question
Why does SE_shape_difference return a multi-part polygon with an extra shape when the secondary shape matches an interior ring?
Answer
When the primary shape is a donut polygon and the secondary shape is a polygon that matches the interior ring of the primary shape, the SE_shape_difference function returns a three-part polygon that includes the primary polygon and the secondary polygon. It should return only the primary polygon.To work around this problem, first unite the two shapes with SE_shape_union and take the difference of the union result and the secondary shape with SE_shape_diffence.
This problem is addressed in ArcGIS 8.1 Service Pack 1. See the Related Information section to download this pack.
Article ID:000003585
Software:
- Legacy Products
Get help from ArcGIS experts
Download the Esri Support App
Related Information
Discover more on this topic
Search for related information
Find training related to this topic
Explore ideas and give feedback