Defines "Region B" polygon for use in determining whether two regions overlap.
Syntax
intl pipAddRegionBPolygon ( pipOverlapHandle over_h, intl
num_points, intl *points );
Arguments
over_h
Handle from pipInitializeOverlapCheck. Input.
num_points
Number of points in the polygon. Input.
*points
Points describing the polygon (can be user-defined or long/lat). Input.
Return Value
PIP_OK
PIP_ERROR
Prerequisites
pipInitializeOverlapCheck.
Alternates
pipObjectFindFirstPolygon.
Notes
You must also call pipAddRegionAPolygon.
This function defines the second region used by pipCheckForRegionOverlap
when comparing two regions.
You can compare multiple RegionB polygons to a single first region using the same handle returned by pipInitializeOverlapCheck. Call pipClearRegionBPolygon after pipCheckForRegionOverlap or pipCheckForRegionOverlapEx and before additional calls to pipAddRegionBPolygon.