Topological geometry data representation method, terminal and storage medium of 3D model

Abstract

The present invention provides a method for representing topological geometric data of a three-dimensional model, a terminal, and a storage medium. The method for representing topological geometric data of a three-dimensional model includes: S101: Acquiring a three-dimensional model, constructing a topology table of the three-dimensional model, and traversing the topology table from top to bottom ; S102: Find the ring edges belonging to the same common edge in the 3D model, merge the geometric data of the common edge, so that the ring edges share the data of the merged common edge; S103: Obtain the surfaces of the shared bottom surface and the shared curve in the 3D model Edge, merge the geometry data of the face and the edge of the shared curve, and save the clipping boundary data corresponding to the face and the edge of the shared curve. The present invention can delete and merge a large number of identical data in the topology table, reduce the volume of topology and geometric data, reduce the occupation of storage space and save the time required for loading files, and improve the loading speed of the computer. Improved user experience.

Description

technical field [0001] The present invention relates to the technical field of artificial intelligence, in particular to a three-dimensional model topological geometry data representation method, a terminal, and a storage medium. Background technique [0002] Computer-aided design (CAD) is the use of computer systems to assist users in creating, modifying, and analyzing complex three-dimensional models, usually output as electronic files, for printing, machining, or other manufacturing operations. Typically, design engineers build 3D models of real-world objects using CAD software loaded on a computer system. For example, a design engineer can use CAD software to create various parts of a real-world object and assemble the parts into one or more subassemblies. Design engineers can then assemble one or more subassemblies to form a 3D model of the real-world object. [0003] Among them, CAD will write the topological and geometric data of the model into a file for preservati...

AI Technical Summary

Problems solved by technology

However, due to the huge topological and geometric data contained in the model, the files storing information are generally large, occupying a large amount of storage space on the computer, and the huge size will also cause the computer to import the file for a long time, which makes it slow to load and run The speed is slow, which reduces the user experience

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