Proceedings of JSPE Semestrial Meeting
2005 JSPE Spring Meeting
Session ID : C13
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Homogenized Catmull-Clark Subdivision Surfaces from Uniform Rational Cubic B-spline Curves
*Yusuke YanagaseFujio Yamaguchi
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Abstract
We propose surface modeling with homogenized polyhedral subdivision techniques. The homogenized subdivision technique uses, in the homogeneous vector space, the algorithm that Catmull and Clark proposed in 1978. In our method we can control the degree of roundness of limit surfaces by changing associated weight values. But it is difficult for designers to know the shape of limit surfaces with homogenized Catmull-Clark subdivision. And it is cumbersome procedure to change weight values. So we propose the algorithm that enables us to generate homogenized Catmull-Clark subdivision surfaces with uniform rational cubic B-spline curves.
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© 2005 The Japan Society for Precision Engineering
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