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The !polyfix Command: Fix Polygon
This command will remove duplicate and in-line redundant vertices from
selected polygons. In addition, it will repair the following
- If a reentrancy condition can be avoided by moving a vertex by
one database unit, the vertex will be moved.
- If a ``needle'' vertex is found, it will be removed. A needle
vertex is a vertex where the path doubles back on itself.
Stephen R. Whiteley