Finite element modeling method and computer system for converting a triangular mesh surface to a quadrilateral mesh surface
October 27, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3889107 Compound curve-flat pattern process Computer graphics, parametric patch parallel subdivision processor Shaping geometric objects by cumulative translational sweeps Method of and apparatus for unfolding a sheet metal part employing a CAD apparatus Polygon display apparatus and method Method for fine decomposition in finite element mesh generation Method and apparatus for decomposing a quadrilateral figure for display and manipulation by a computer system Face and edge trim method for an automatic mesh generation system Method and apparatus for determining line positions for display and manipulation by a computer system InventorsApplicationNo. 549361 filed on 10/27/1995US Classes:345/423TessellationExaminersPrimary: Jankus, Almis R.Attorney, Agent or FirmForeign Patent References
International ClassG06T 017/00Foreign Application Priority Data1994-11-07 JPAbstractA method and computer system for converting triangular meshes to quadrilateral meshes in a computer system. The computer system comprises a processor and a means for inputting graphical data. The graphical data comprises a surface, the surface is defined by a boundary and comprises a triangular mesh. The method comprises the processor-executed steps of: (a) ascertaining the topological distance of the triangles on the triangular mesh to the boundary; (b) dividing the surface into layers of triangles, such that each layer comprises triangles within a range of topological distances; (c) within each layer, forming groups of triangles; and (d) dividing each group into at least three quadrilateral elements.Other References
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