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Region algebra

The following functions provide support for performing Boolean arithmetic operations on complex regions to produce new complex regions. These Boolean arithmetic routines form the heart of the SciTech MGL complex clip region support, and allow you to construct arbitrarily complex shapes from the simple region primitives that the SciTech MGL can generate for you.

MGL_diffRegion

MGL_diffRegionRect

MGL_emptyRegion

MGL_equalRegion

MGL_offsetRegion

MGL_optimizeRegion

MGL_ptInRegionCoord

MGL_sectRegion

MGL_sectRegionRect

MGL_unionRegion

MGL_unionRegionOfs

MGL_unionRegionRect

 

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