公开(公告)号：US11341296B2

公开(公告)日：2022-05-24

申请号：US16215070

申请日：2018-12-10

Applicant: Dassault Systemes

Inventor： Pierre Denis Voirin

IPC: G06T17/20 ,  G06F30/20 ,  G06F30/17 ,  G06T19/20 ,  G06F113/24 ,  G06F119/18

Abstract: A computer-implemented method computes an unfolded part of a modeled bended 3D object in a 3D scene of a computer-aided design system. The method a) provides the 3D object; b) selects a fixed portion (FP) of the 3D object; c) selects a mobile portion (MP) of the 3D object; d) determines a 1D interface (INT) forming an intersection between the fixed portion (FP) and the mobile portion; e) computes a transformed portion resulting from a linear transformation of the mobile portion (MP) according to an drawing direction (DD); f) trims the transformed portion in the vicinity of the 1D interface (INT), thereby forming a trimmed transformed portion (TTP); g) creates a fillet (FI) between the 1D interface (INT) and the trimmed transformed portion (TTP); and h) defines the unfolded part as an union of the fixed portion (FP), the trimmed transformed portion (TTP) and the created fillet (FI).

公开(公告)号：US20190197202A1

公开(公告)日：2019-06-27

申请号：US16215070

申请日：2018-12-10

Applicant: Dassault Systemes

Inventor： Pierre Denis Voirin

IPC: G06F17/50 ,  G06T19/20 ,  G06T17/20

CPC classification number: G06F17/5009 ,  G06F17/5086 ,  G06F2217/12 ,  G06F2217/42 ,  G06T17/20 ,  G06T19/20

Abstract: A computer-implemented method computes an unfolded part of a modeled bended 3D object in a 3D scene of a computer-aided design system. The method a) provides the 3D object; b) selects a fixed portion (FP) of the 3D object; c) selects a mobile portion (MP) of the 3D object; d) determines a 1D interface (INT) forming an intersection between the fixed portion (FP) and the mobile portion; e) computes a transformed portion resulting from a linear transformation of the mobile portion (MP) according to an drawing direction (DD); f) trims the transformed portion in the vicinity of the 1D interface (INT), thereby forming a trimmed transformed portion (TTP); g) creates a fillet (FI) between the 1D interface (INT) and the trimmed transformed portion (TTP); and h) defines the unfolded part as an union of the fixed portion (FP), the trimmed transformed portion (TTP) and the created fillet (FI).