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Lecture Notes in Computer Science
The support function of a free-form-surface is closely related to the implicit equation of the dual surface, and the process of computing both the dual surface and the support function can be seen as dual implicitization. The support function can be used to parameterize a surface by its inverse Gauss map. This map makes it relatively simple to study isophotes (which are simply images of spherical circles) and offset surfaces (which are obtained by adding the offsetting distance to the supportdoi:10.1007/978-3-642-03596-8_1 fatcat:m7gwnaprbrdq3ppiayycspzlga