T-spline overcomes the topological constraints of the control net of NURBS model ***,the introduction of T-junctions,L-junctions and the isolated vertices in the T-mesh makes its topological structure very *** a resul...
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T-spline overcomes the topological constraints of the control net of NURBS model ***,the introduction of T-junctions,L-junctions and the isolated vertices in the T-mesh makes its topological structure very *** a result,not only the T-mesh is hard to be represented,but the computation and local refinement of T-spline are difficult to be implemented as well. This hinders the studies and applications of T-splines in *** this paper,we develop the extended T-mesh,which can be represented in an obj-like format file,and converted into the face-edge-vertex data structure *** such data structure, the computation of T-splines can be made much ***,we develop a new local refinement algorithm,by virtue of the extended *** new algorithm is easy to be implemented,by separating the local refinement into two procedures,the mesh refinement,and blending function refinement.
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