公开(公告)号：US20250111101A1

公开(公告)日：2025-04-03

申请号：US18904863

申请日：2024-10-02

Applicant: DASSAULT SYSTEMES

Inventor： Frédéric LETZELTER ,  Maria PUMBURIOS ,  Richard MAISONNEUVE

IPC: G06F30/15

Abstract: A computer-implemented method for converting a subdivision curve into a corresponding computer-aided design (CAD) curve format. The subdivision curve is controlled by a base mesh. The base mesh is formed by vertices connected by one or more edges. The subdivision curve defines at least a part of a product to be manufactured for designing the product. The method comprises transforming the subdivision curve into a G2-continous CAD curve. The CAD curve is formed by the union of one or more Bezier curves. Each Bezier curve corresponds to a respective edge of the base mesh. A control polygon of the CAD curve is computed from the base mesh. The transformation is based on a Catmull-Clark refinement process.