公开(公告)号：US20240027993A1

公开(公告)日：2024-01-25

申请号：US18358827

申请日：2023-07-25

Applicant: DASSAULT SYSTEMES

Inventor： Frédéric LETZELTER ,  Maria PUMBORIOS ,  Richard MAISONNEUVE

IPC: G05B19/4097 ,  G06T17/20 ,  G06T7/13 ,  G06T7/11

CPC classification number: G05B19/4097 ,  G06T17/205 ,  G06T7/13 ,  G06T7/11 ,  G06T2200/04 ,  G05B2219/35134

Abstract: A computer implemented method for designing a 3D modeled object representing a manufacturing product. The method includes obtaining a base mesh representing the 3D modeled object, selecting one or more connected edges of the base mesh, subdividing the base mesh based on the selected edges by obtaining a bevel pattern area over the selected path. The method obtains, for at least one of the two endpoints of the path, a transition area by grouping all faces sharing the at least one of the two endpoints of the path, except those of the computed bevel pattern area. The method re-meshes the transition area by obtaining a transition vertex located in the transition area and computing an edge connecting each vertex of the pair of vertices with the obtained transition vertex. The method outputs the subdivided base mesh. This improves the design of a 3D modeled object.

公开(公告)号：US20180178446A1

公开(公告)日：2018-06-28

申请号：US15846289

申请日：2017-12-19

Applicant: DASSAULT SYSTEMES

Inventor： Romain NOSENZO ,  Richard MAISONNEUVE ,  Nicolas MONTANA

IPC: B29C64/153 ,  B29C64/386 ,  B33Y50/02 ,  G06T17/10

CPC classification number: B29C64/153 ,  B29C64/386 ,  B29C64/393 ,  B33Y50/02 ,  G06F17/50 ,  G06F2217/12 ,  G06T17/10 ,  Y02P90/265

Abstract: Disclosed is a computer-implemented method for determining a boundary representation of the result of a two-axis 3D printing process. The method comprises obtaining a stack of planes, each couple of consecutive planes corresponding to a respective slice of the result of the 3D printing process. The method also comprises, for each couple of consecutive planes: obtaining one or more respective tool trajectories, determining a respective 2D contour corresponding to the one or more tool trajectories. The method also comprises determining a respective extrusion of the respective 2D contour bounded by a second plane of the couple and a first plane of the couple, and forming the boundary representation with the extrusions and portions of the planes. The method improves 3D printing.

公开(公告)号：US20160224693A1

公开(公告)日：2016-08-04

申请号：US15013775

申请日：2016-02-02

Applicant: DASSAULT SYSTEMES

Inventor： Richard MAISONNEUVE

IPC: G06F17/50

CPC classification number: G06F17/50 ,  G06T17/20 ,  G06T17/30 ,  G06T19/20 ,  G06T2219/2021

Abstract: It is the method comprising the steps of defining, by a user, a base mesh associated to a subdivision surface and to a corresponding predetermined mesh-to-NURBS-surface conversion algorithm, the subdivision surface representing the 3D modeled object; defining, by the user, a 2D image and a location for engraving the 2D image on the subdivision surface; and determining a NURBS surface that corresponds to applying a deformation map on the result of performing the mesh-to-NURBS-surface conversion algorithm to the base mesh, the deformation map including displacement vectors provided for positions of the result of performing the mesh-to-NURBS-surface conversion algorithm to the base mesh, the positions corresponding to the location for engraving the 2D image, the displacement vectors being computed based on corresponding pixel values of the 2D image. Such a method improves the design of a 3D modeled object.

Abstract translation: 所述方法包括以下步骤：由用户定义与细分表面相关联的基础网格以及相应的预定网格到NURBS表面转换算法，所述细分表面表示3D建模对象; 由用户定义2D图像和用于在细分表面上雕刻2D图像的位置; 以及确定对应于将基于所述网格到NURBS表面转换算法的结果应用到所述基本网格的结果应用变形图的NURBS曲面，所述变形图包括为所述网格到NURBS表面转换算法的结果的位置提供的位移向量 -NURBS表面转换算法到基础网格，对应于用于雕刻2D图像的位置的位置，基于2D图像的相应像素值计算位移矢量。 这种方法改进了3D建模对象的设计。