G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 19/00 (2011.01) G06T 17/20 (2006.01)
Patent
CA 2554361
The invention is directed to a process for creating from a mesh an isotopologic set of parameterized surfaces. Said process comprises a step of providing a mesh having a plurality of vertices connected by edges, defining faces, the vertices comprising regular vertices of valence 4 and irregular vertices of valence different from 4. The mesh provided is for example a Catmull-Clark subdivided mesh. Said mesh further has a sharpness value. defined on at least one vertex or edge, with a default value, the sharpness being representative of the attractiveness of the vertex or edge on the surface modeled by the mesh. In other words, the sharpness measures the difference between the mesh as it stands at a given subdivision level and the initial mesh. The process further comprises providing at least three different types of parameterized surfaces; and - for a face with regular vertices and a default value of sharpness on vertices and edges of the face, applying a first type of parameterized surface; - for a face with regular vertices and at least one vertex or edge with a non- default value of sharpness, applying a second type of parameterized surface; and - for a face with at least one irregular vertex, applying a third type of parameterized surface.
Dassault Systemes
Mccarthy Tetrault Llp
LandOfFree
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