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MGL_emptyRegion
Determines if a region is empty.
Declaration
ibool MGLAPI MGL_emptyRegion(
const region_t *r)
Prototype In
mgraph.h
Parameters
r |
region to test |
Return Value
True if region is empty, false if not.
Description
Determines if a region is empty or not. A region is defined as being empty if the bounding rectangle's right coordinate is less than or equal to the left coordinate, or if the bottom coordinate is less than or equal to the top coordinate.
See Also
MGL_equalRegion, MGL_unionRegion, MGL_diffRegion, MGL_sectRegion, MGL_offsetRegion, MGL_ptInRegion, MGL_ptInRegionCoord
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