An improved algorithm for checking the injectivity of 2D toric surface patches
An improved algorithm for checking the injectivity of 2D toric surface patches
复制标题
一种改进的检查二维复曲面面片单射性的算法
DOI:
10.1016/j.camwa.2020.01.001
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发表时间:
2020-01
影响因子:
2.9
通讯作者:
Chungang Zhu
中科院分区:
文献类型:
--
作者:
Yingying Yu;Ye Ji;Chungang Zhu
Injective parametrizations are widely used both in theory and in applications. The injectivity of parameteric curves and surfaces means that there are no self-intersections. Toric surface patch is defined by a set of integer lattice points A and corresponding control points and weights, which includes rational tensor product and triangle Bézier patches as special cases. In 2011, Sottile and Zhu presented a geometric method to check the injectivity of 2D toric surface patches. In this paper, we present an improved algorithm of their method. The complexity of the improved algorithm is reduced from O (n 3) to O (n 2), where n=#(A). Some examples are shown to illustrate the effectiveness of our algorithm. Moreover, the algorithm is also applied to check the injectivity of parameterization in isogeometric analysis.
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影响因子:
2.4
作者:
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影响因子:
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作者:
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作者:
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通讯作者:
Galligo, Andre
DOI:
10.1016/j.cad.2009.07.008
发表时间:
2009-12
期刊:
Comput. Aided Des.
影响因子:
--
作者:
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通讯作者:
G. Elber;T. Grandine;Myung-Soo Kim