Introduction - If you have any usage issues, please Google them yourself
The B-rep solid representation model is a very complex model, requires the ability to express the polyhedron between the geometric elements of the complete geometry and topology, and allows for such changes the relationship between geometry and topology. In B-rep representation, body, face, edge and vertex is the most basic geometric elements, in the merging entities, display, analysis and calculation, or the process of human-computer interaction