A family of C1 Clough-Tocher spline spaces on C0 piecewise quadratic domain partitions

被引:0
|
作者
Groselj, Jan
Knez, Marjeta [1 ]
机构
[1] Univ Ljubljana, Fac Math & Phys, Jadranska 19, Ljubljana 1000, Slovenia
关键词
Quadratic triangle; Quadratic triangulation; Isogeometric functions; Clough-Tocher refinement; Spline space; Dimension; Basis functions; ISOGEOMETRIC ANALYSIS;
D O I
10.1016/j.matcom.2025.03.006
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
The paper addresses the construction of C1 splines on a curved domain that is parametrized by a C0 piecewise geometry mapping composed of quadratic B & eacute;zier triangles. The C1 splines are assembled from polynomials of a chosen total degree greater than or equal to four, and their construction is based on the Clough-Tocher splitting technique that ensures locality. In particular, the splines are locally characterized by an interpolation problem described by Hermite data, which resembles the standard macro-element concepts developed for C1 splines on triangulations.
引用
收藏
页码:368 / 389
页数:22
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