William F. Reinke

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An approach to boundary evaluation and a boundary representation are presented. The approach uses nonmanifold topology (NMT) to overcome editing and coverage limitations associated with the manifold nature of existing boundary evaluation schemes. It merges the input primitives into a single representation and selects the entities in the merged set that(More)
To integrate a CSG-based solid modeler into an existing wireframe/surface modeling system, new boundary evaluation technology has been developed. This scheme uses exact representations for the simple quadric surfaces and both exact and approximate representations of higher-order curved surfaces. It supports parametric primitives (box, wedge, sphere,(More)
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