Determines if another binary polygon overlap has occurred and, if so, returns the polygon that is in overlap with the input polygon.
Syntax
intl gdlFindNextPolygonOverlap( gdlFileHandle hFile, gdlShape* output );
Arguments
hFile
The gdlFileHandle returned by gdlOpenSpatialFile. Input.
output
A pointer to the overlapping polygon. Output.
Return values
GDL_NOT_FOUND
GDL_ERROR
GDL_OK
Prerequisites
gdlFindPolygonOverlap
Alternates
gdlFindNextPolygonOverlapPercentage
Notes
Following instances of this function, you should call gdlShapeFree with the output polygon when you are finished using the output polygon to release system resources.