Chapter 22
GEOmetric Set Operations
Geometric set operations are enabled on an ASPL workspace whose element grouping class is GEOnamed. For such workspace the ASPL set operators f& and f\ provides geometric set operations. The context of geometric intersection and difference is programmed within ASPL to allow the users to determine geometrically overlapping and disjoint elements in a group using f& and f\ respectively. The set operators f& and f\ do contextual set intersection and set difference according to contextual routines, here they are the user programmed GEOmetric routines.
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