Patent ID: 9196090
Filing Date: 2015-11-24
Classification: G06F,G06T

Abstract:
1. A computer-implemented method for designing a three-dimensional (3D) modeled object, wherein the method comprises the steps of: providing a base mesh controlling a subdivision surface, the subdivision surface modeling the 3D modeled object; providing a polyline consisting of connected edges of the base mesh; providing a smooth portion of the polyline, including a smooth point on the polyline, and a sharp portion of the polyline, including a sharp point on the polyline; and converting faces of the base mesh adjacent to the polyline into parametric patches approximating the subdivision surface, in which the parametric patches have a G0 connection across the sharp portion of the polyline, and the parametric patches have a Gi connection across the smooth portion of the polyline, where i is an integer higher or equal to 1, wherein the converting further comprises: