N-DIMENSIONAL GEOMETRIC MODEL, N-DIMENSIONAL GEOMETRIC MODEL STORAGE DEVICE AND METHOD, N-DIMENSIONAL GEOMETRIC MODEL DISPLAY DEVICE AND METHOD, N-DIMENSIONAL GEOMETRIC MODEL DATA STRUCTURE, AND N-DIMENSIONAL GEOMETRIC MODEL PROCESSING SYSTEM, PROGRAM, AND STORAGE MEDIUM THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide an n-dimensional geometric model storage and display device that can achieve a compact data size while maintaining sufficient display quality in a simultaneous wire and shading display. SOLUTION: When a geometric model of an n-dimensional space is stored, vertex coordinates of polylines are stored in a polyline vertex coordinate table. A vertex coordinate of the vertex coordinates of the triangular meshes on a mesh boundary is replaced by a vertex coordinate of a polyline the most adjacent to the vertex coordinate, and the triangular mesh is stored in a triangular mesh vertex coordinate table. The polyline division number of the polyline corresponding to each polyline is stored in a polyline division number table. The division number of a mesh boundary corresponding to each polyline is stored in a mesh boundary division number table. When the n-dimensional geometric model is to be displayed, triangular meshes are first displayed, and the polylines are displayed by matching the polyline division with the division number of the mesh boundary. COPYRIGHT: (C)2005,JPO&NCIPI