NON-CONFLICTING METHOD AND SYSTEM FOR THREE-DIMENSIONAL GEOMETRIC DATA

摘要

PROBLEM TO BE SOLVED: To provide a method of detecting and eliminating geometric conflict (self-interference and the like) in three-dimensional geometric data, in particular, a geometric non-conflict processing method of the three-dimensional geometric data free from failure in operation even when the shape operation is repeatedly executed in the shape operation of three-dimensional geometric data.;SOLUTION: This method of detecting and eliminating geometric conflict in a processed three-dimensional geometric data in a three-dimensional geometric data processing system SS performing the operation processing to the three-dimensional geometric data, and storing the geometric data created and processed in the operation processing process, comprises a step for constituting and processing the boundary face data as a surface data of a three-dimensional geometric figure by triangle face data or zero triangle data where three apexes of triangle are located on the same straight line, a coordinate value data step for arbitrarily truncating a numerical value of the three-dimensional geometric data in accordance with necessary accuracy, and a geometric conflict detecting and eliminating step for detecting and eliminating the geometric conflict generated in the numerical value data truncating step.;COPYRIGHT: (C)2005,JPO&NCIPI