公开(公告)号：US20180181682A1

公开(公告)日：2018-06-28

申请号：US15852664

申请日：2017-12-22

Applicant: DASSAULT SYSTEMES

Inventor： Remy RORATO ,  Laurent MARINI

IPC: G06F17/50

CPC classification number: G06F17/50 ,  G06F2217/02 ,  G06F2217/04 ,  G06F2217/06 ,  G06T17/10

Abstract: Described herein is a computer-implemented method for designing a three-dimensional modeled physical part. The method comprises providing a boundary representation of the modeled physical part, selecting, upon user action, a subset of the boundary representation that represents a geometric feature, identifying all the subsets of the boundary representation that are similar to the selected subset of the boundary representation by applying a feature similarity function.

公开(公告)号：US20170160726A1

公开(公告)日：2017-06-08

申请号：US15370306

申请日：2016-12-06

Applicant: DASSAULT SYSTEMES

Inventor： Jean-Francois RAMEAU ,  Remy RORATO

IPC: G05B19/4097

CPC classification number: G05B19/4097 ,  G05B2219/35008 ,  G05B2219/45137 ,  G05B2219/49348 ,  G06F17/5086 ,  G06F2217/12 ,  G06F2217/41 ,  G06F2217/42 ,  G06T17/005 ,  G06T17/10 ,  Y02P90/265

Abstract: The invention notably relates to a method for determining specifications of the input of a manufacturing operation that outputs a part having cut-outs. The method comprises providing specifications of the output part, including a user-designed B-Rep having cycles of edges and modeling the part, the cut-outs being represented by the user with tunnels in the B-Rep, determining the set that consists of all cycles being the one having the smallest length in a respective equivalence class, performing a process on the set that includes iterating replacing a cycle when this reduces the length, and deleting a cycle when a sum results in a boundary cycle, otherwise replacing the cycle by the sum when this reduces the length.The invention offers an improved solution to detect, in a B-Rep having cycles of edges and modeling a part having cut-outs represented by tunnels, location of at least part of the tunnels.