Patent ID: 11886165
Assignee: AUTODESK, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  B  Y | IPC B  G

Claim 27:
28. The system of claim 19, wherein the one or more data processing apparatus are able to run the instructions of the computer aided design program to construct the one or more editable smooth surfaces by performing operations comprising:
adding regularity constraints on any boundary vertices with a flat interior surface angle;
applying boundary curve tangent direction propagation along boundary edges that lie on a boundary between the first portion and the second portion;
applying a globally continuous map computation method, aligned with principal curvatures in anisotropic regions, scaled according to local curvatures, quantized to obtain a quad partitioning of the map image;
applying a global map relaxation to improve smoothness of the global quad partitioning; and
applying a global surface approximation method that contains an approximation error of the second portion of the mesh.