Clears region a and b polygons that were set with pipAddRegionAPolygon or pipAddRegionBPolygon.
Syntax
intl pipClearRegionAllPolygon ( pipOverlapHandle over_h );
Arguments
over_h
Handle from pipInitializeOverlapCheck. Input.
Return Value
PIP_OK
PIP_ERROR
Prerequisites
pipCheckForRegionOverlap or pipCheckForRegionOverlapEx
Alternates
None.
Notes
This function clears the regions used by pipCheckForRegionOverlap or pipCheckForRegionOverlapEx when comparing two regions.
This function allows multiple calls to pipAddRegionAPolygon and pipAddRegionBPolygon using a single call to pipInitializeOverlapCheck.