文章基本信息

标题：凹形状を含む非四辺形領域への曲面内挿方法の検討
本地全文：下载
作者：曽根順治 ; 今野晃市 ; 千代倉弘明等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2001
卷号：55
期号：1
页码：141-148
DOI：10.3169/itej.55.141
出版社：The Institute of Image Information and Television Engineers
摘要：Three-dimensional surface design of industrial products includes a wide variety of non-four-sided areas. Subdivision methods are widely used to interpolate the surface of these areas. But, smooth surface shape control of multiple surfaces is difficult. We used the trim surface for interpolation of these area, but shape control of the trim surface was also difficult. We have now developed a surface interpolation method for large non-four-sided areas that improves shape controllability by using NBG (NURBS Boundary Gregory) patch. This method classifies non-four-sided areas into five types of convex and concave shapes, and the interpolation manner is determined by shape type. It has been used to improve the surface modeling of industrical products.
关键词：NURBS;非四辺形領域;Gregory patch;不規則領域;曲面内挿