Trivariate B-spline solid construction by pillow operation and geometric iterative fitting

作     者：Hongwei LIN Hao HUANG Chuanfeng HU 

作者机构：School of Mathematical Science State Key Laboratory of CAD&CG Zhejiang University 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2018年第61卷第11期

页      面：232-234页

核心收录：

学科分类：081203[工学-计算机应用技术] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by National Natural Science Foundation of China (Grant No. 61379072) 

主　　题：TBS Trivariate B-spline solid construction by pillow operation and geometric iterative fitting GFD Figure 

摘      要：While the traditional geometric design community focuses on the design of curves and surfaces, the advent of isogeometric analysis (IGA)[1] has made the development of methods for designing trivariate B-spline solids (TBSs) imperative. In IGA, a valid TBS should have a positive Jacobian value at every point in its domain. A negative Jacobian value at any point in the domain of the TBS can render the IGA invalid.