NURPS for special effects and quadrics

Authors:
Joris Windmolders;Paul Dierckx
Affiliations:
Katholieke Univ. Leuven, Heverlee, Belgium;Katholieke Univ. Leuven, Heverlee, Belgium
Venue:
Mathematical Methods for Curves and Surfaces
Year:
2001

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Abstract

NURPS are the rational extensions of Powell-Sabin splines in their normalized B-spline representation. The weights associated with the control points allow to represent (parts of) some particular quadric surfaces. By choosing coincident control points, special effects on the surface can be generated.