Closed Smooth Surface Defined from Cubic Triangular Splines

Closed Smooth Surface Defined from Cubic Triangular Splines

Year:    2005

Journal of Computational Mathematics, Vol. 23 (2005), Iss. 1 : pp. 67–74

Abstract

In order to construct closed surfaces with continuous unit normal, we introduce a new spline space on an arbitrary closed mesh of three-sided faces. Our approach generalizes an idea of Goodman and is based on the concept of 'Geometric continuity' for piecewise polynomial parametrizations. The functions in the spline space restricted to the faces are cubic triangular polynomials. A basis of the spline space is constructed of positive functions which sum to 1. It is also shown that the space is suitable for interpolating data at the midpoints of the faces.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2005-JCM-8796

Journal of Computational Mathematics, Vol. 23 (2005), Iss. 1 : pp. 67–74

Published online:    2005-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    8

Keywords:    Closed triangular mesh Triangular Bernstein polynomial Smooth spline Geometric continuity.