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Proceedings Paper

Improving G1 surface joins by using a composite patch
Author(s): Jorg Peters
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Paper Abstract

A popular approach to joining surface patches smoothly across a given boundary curve is to choose the transversal derivative as an average of the tangents at the end points. However, it can be observed that this type of rational linear reparametrization forces the center transversal derivatives outside the convex hull of the remaining boundary derivatives unless certain tangent ratios are equal. The result are undesirable features in the surface. To circumvent the problem a composite patch is introduced. It consists of tensor-product patches that separate the original boundary tangents, so that constant G(superscript 1$ joins can be used.

Paper Details

Date Published: 1 November 1992
PDF: 10 pages
Proc. SPIE 1830, Curves and Surfaces in Computer Vision and Graphics III, (1 November 1992); doi: 10.1117/12.131760
Show Author Affiliations
Jorg Peters, Purdue Univ. (United States)


Published in SPIE Proceedings Vol. 1830:
Curves and Surfaces in Computer Vision and Graphics III
Joe D. Warren, Editor(s)

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