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FAQ: Why does SE_shape_union return results that are inconsistent with SE_shape_is_overlapping?

Question

Why does SE_shape_union return results that are inconsistent with SE_shape_is_overlapping?

Answer

The SE_shape_union function miscompares rings that are touching when two polygons are compared. Therefore, SE_shape_union can sometimes return results that are inconsistent with SE_shape_is_overlapping.

This problem is addressed in ArcGIS 8.1 Service Pack 1. See Related Information below to download this pack.

Related Information