Generating wireframes from set-theoretic solid models by spatial division
Computer-Aided Design
Some speculations on feature recognition
Computer-Aided Design
Generalizing active zones for set-theoretic solid models
The Computer Journal
Representations for Rigid Solids: Theory, Methods, and Systems
ACM Computing Surveys (CSUR)
A null-object detection algorithm for constructive solid geometry
Communications of the ACM
ACM Transactions on Graphics (TOG)
The WINSOM solid modeller and its application to data visualization
IBM Systems Journal
The n-dimensional extended convex differences tree (ECDT) for representing polyhedra
SMA '91 Proceedings of the first ACM symposium on Solid modeling foundations and CAD/CAM applications
Efficient parallel evaluation of CSG tree using fixed number of processors
SMA '93 Proceedings on the second ACM symposium on Solid modeling and applications
Dimension-independent modeling with simplicial complexes
ACM Transactions on Graphics (TOG)
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Set-theoretic solid models often contain redundant primitives, which slow down rendering and other processes. They are not simple to remove, especially as there can be alternative eliminations that may not be equally desirable. Existing techniques for eliminating such redundant primitives do not fully consider the possibilities and rely on repeated evaluation of parts of the object's boundary, a process that is likely to be very slow. A technique that allows alternative eliminations to be examined is proposed and a potentially efficient, but geometrically approximate, method of implementation is outlined.