The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2015
Filed:
Apr. 29, 2013
Dassault Systemes, Velizy Villacoublay, FR;
Richard Maisonneuve, Aix en Provence, FR;
Dassault Systemes, Velizy Villacoublay, FR;
Abstract
It is provided a computer-implemented method for designing a 3D modeled object. The method comprises providing a base mesh controlling a subdivision surface. The subdivision surface models the 3D modeled object. The method also comprises providing a polyline consisting of connected edges of the base mesh and defining a smooth portion of the polyline comprising an extremity of the polyline and a sharp portion of the polyline upstream the smooth portion. The method also comprises converting faces of the mesh adjacent to the polyline into parametric patches approximating the subdivision surface. The patches have a G0 connection across the sharp portion of the polyline, and the patches have a Gi connection across the smooth portion of the polyline, where i is an integer higher or equal to 1. Such a method improves the design of a 3D modeled object modeled by a subdivision surface.