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An efficient data structure for calculation of unstructured T-spline surfaces 被引量:2

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摘要 To overcome the topological constraints of non-uniform rational B-splines,T-splines have been proposed to define the freeform surfaces.The introduction of T-junctions and extraordinary points makes it possible to represent arbitrarily shaped models by a single T-spline surface.Whereas,the complexity and flexibility of topology structure bring difficulty in programming,which have caused a great obstacle for the development and application of T-spline technologies.So far,research literatures concerning T-spline data structures compatible with extraordinary points are very scarce.In this paper,an efficient data structure for calculation of unstructured T-spline surfaces is developed,by which any complex T-spline surface models can be easily and efficiently computed.Several unstructured T-spline surface models are calculated and visualized in our prototype system to verify the validity of the proposed method.
出处 《Visual Computing for Industry,Biomedicine,and Art》 2019年第1期7-15,共9页 工医艺的可视计算(英文)
基金 The authors would like to acknowledge the support by the National Natural Science Foundation of China(Nos.61572056 and 51305016).
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