ANSYS, Inc.
Systems and methods for generating a surface that approximates one or more CAD surfaces

Abstract:

Systems and methods are provided for generating a surface that approximates one or more CAD surfaces. An input that approximates the one or more CAD surfaces via a plurality of triangles is received. A mesh of equilateral triangles is generated on the input, with the mesh including vertices that lie on the input. Vertices of the mesh are moved to generate a control mesh, the control mesh having a corresponding limit surface that passes through all of the vertices of the mesh. A local refinement is performed on one or more regions of the control mesh that have an error that is greater than a threshold value, where the local refinement causes the limit surface of the control mesh to more closely approximate the one or more CAD surfaces. The mesh is parameterized to generate a two-dimensional (2D) representation of the mesh.