| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for obtaining a proper topological intersection among inner curved surfaces, and a topological structure of an unnormalized hexahedron mesh free of contradictions. SOLUTION: The present invention is a method for generating an unnormalized hexahedron mesh, which generates a simple inner curved surface by referring to the identity of the type of the self-intersection in base points P and Q of a triplicity of circuits T=äA, B, C} consisting of: a circuit A, a partial cocycle which has been cut and separated from a cocycle at the self-intersection point, and does not cause a self-intersection; a circuit B connected to the circuit A at the base point P, or a partial circuit B of a circuit including the base point P; and a circuit C neighboring the circuit A at the base point Q, or a partial circuit C of a circuit including the base point Q, and forms an inner curved surface including the simple inner curved surface, in an inner curved surface direct alignment method which generates an arrangement of an inner curved surface inside a solid with a border of a cocycle of the quadrilateral mesh composed of even numbers of the quadrilateral element covering the solid surface, and generates a hexahedron mesh by converting the three intersecting points of the inner curved surface which appear in the arrangement, to a hexahedron element. COPYRIGHT: (C)2006,JPO&NCIPI
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