Tool Name	Polygon Self-Intersection
Tool ID	12
Library ID	shapes_polygons
Version	1.0
Author(s)	O.Conrad (c) 2012

Description

This tool identifies self-intersection in polygons. The Intersecting areas are added as new polygons to the dataset, leaving the input areas with the geometric difference. The new polygons are labeled with the identifier of the intersecting polygons separated by a '|' character. The identifier can be set with the "Identifier"-field option, otherwise the identifier is just the polygon index.
Uses the free and open source software library Clipper created by Angus Johnson.

References

Clipper Homepage

Parameters

Name	Type	Identifier
Input
Polygons	shapes, input	POLYGONS
Output
Intersection	shapes, output, optional	INTERSECT
Options
Identifier	table field	ID