Surface modeling with polynomial splines over hierarchical T-meshes

Authors:
Xin Li;Jiansong Deng;Falai Chen
Affiliations:
University of Science and Technology of China, Department of Mathematics, 230026, Hefei, Anhui, P.R. China;University of Science and Technology of China, Department of Mathematics, 230026, Hefei, Anhui, P.R. China;University of Science and Technology of China, Department of Mathematics, 230026, Hefei, Anhui, P.R. China
Venue:
The Visual Computer: International Journal of Computer Graphics
Year:
2007

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Abstract

Computer graphics and computer-aided design communities prefer piecewise spline patches to represent surfaces. But keeping the smoothness between the adjacent patches is a challenging task. In this paper, we present a method for stitching several surface patches, which is a key step in complicated surface modeling, with polynomial splines over hierarchical T-meshes (PHT-spline for short). The method is simple and can be easily applied to complex surface modeling. With the method, spline surfaces can be constructed efficiently and adaptively to fit genus-zero meshes after their spherical parameterization is obtained, where only small sized linear systems of equations are involved.