Abstract
Surface skinning is a widely used algorithm in CAD modeling which permits designer to pass surface through several section curves, thus providing modeling process with powerful ability to describe complex shapes and transform the 2D design intention into 3D space. This paper contributes in the combination of T-Spline technology and surface skinning modeling by introducing a new algorithm for local shape preservation T-Spline surface skinning. The examples given in the paper show that this algorithm is effective.
Highlights
Skinning is a prevailing method in surface generation by passing through a series of curves, wherein the curves are called cross section curves [1]
This paper contributes in the combination of T-Spline technology and surface skinning modeling by introducing a new algorithm for local shape preservation T-Spline surface skinning
Li et al improved Nasri’s method and proposed the periodic T-Spline skinning method using a semi-NURBS form [7], in which more common knots of cross section curves can be obtained by knot insertion
Summary
Skinning (or lofting) is a prevailing method in surface generation by passing through a series of curves, wherein the curves are called cross section curves [1]. Y. Li et al improved Nasri’s method and proposed the periodic T-Spline skinning method using a semi-NURBS form [7], in which more common knots of cross section curves can be obtained by knot insertion. Oh et al offered a new way to generate the intermediate section curves This method increases the number of intermediate curves, but by exploiting the error between the intermediate section curves and the surface, it can regulate the shape of the surface and obtain comparatively smooth T-Spline skinning surface [8]. This method can solve the wiggle problem in general cases with more computation tradeoff.
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