Determines if another percentage polygon overlap has occurred, returning the polygon and the percentage overlap with the input polygon.
Syntax
intl gdlFindNextPolygonOverlapPercentage( gdlFileHandle hFile, gdlShape* output, double* overlap );
Arguments
hFile
The gdlFileHandle returned by gdlOpenSpatialFile. Input.
output
A pointer to the overlapping polygon. Output.
overlap
The percentage of overlap. Output.
Return values
GDL_NOT_FOUND
GDL_ERROR
GDL_OK
Prerequisites
gdlFindPolygonOverlapPercentage
Alternates
gdlFindNextPolygonOverlap
Notes
The percentage overlap determines the confidence rating.
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.