公开(公告)号：US20160063174A1

公开(公告)日：2016-03-03

申请号：US14835354

申请日：2015-08-25

Applicant: DASSAULT SYSTEMES

Inventor： Jean-Francois RAMEAU

IPC: G06F17/50 ,  G06T17/10 ,  G06T11/20

Abstract: The invention notably relates to a computer-implemented method for designing a three-dimensional modeled object. The method comprises providing a modeling graph having nodes that represent geometrical objects and arcs that each represent a relationship linking the two geometrical objects represented by the incident nodes of the arc, wherein procedural relationships are represented by unidirectional arcs having the same orientation as the procedural relationships, and wherein the relationships linking the geometrical objects further include live relationships that are represented by bidirectional arcs. The method also comprises upon a modification of the data defining the 3D modeled object, determining a strong graph, wherein the strong graph is the graph of strong components of the modeling graph, and updating the 3D modeled object according to a traversal of the strong graph.Such a method improves the design of a 3D modeled object.

Abstract translation: 本发明特别涉及用于设计三维建模对象的计算机实现的方法。 该方法包括提供具有表示几何对象的节点的建模图，每个弧表示连接由弧的入射节点表示的两个几何对象的关系，其中过程关系由具有与程序关系相同的取向的单向弧表示 并且其中链接几何对象的关系还包括由双向弧表示的活关系。 该方法还包括对定义3D建模对象的数据的修改，确定强图，其中强图是建模图的强分量的图，并且根据强图的遍历来更新3D建模对象 。 这种方法改进了3D建模对象的设计。

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.

公开(公告)号：US20160063141A1

公开(公告)日：2016-03-03

申请号：US14835304

申请日：2015-08-25

Applicant: DASSAULT SYSTEMES

Inventor： Jean-Francois RAMEAU

IPC: G06F17/50

Abstract: The invention notably relates to a method for designing a 3D modeled object. Provided is a modeling graph having nodes that represent geometrical objects and arcs that each represent a relationship, wherein procedural relationships are represented by unidirectional arcs, wherein the relationships linking the geometrical objects further include live relationships that are represented by bidirectional arcs, and wherein the provided modeling graph respects a criterion that all the arcs of each strong component of the modeling graph are bidirectional. Upon adding a relationship linking two of the geometrical objects that are included in the data defining the 3D modeled object before the addition, the method selects two geometrical objects to be linked by the relationship to be added, the selection being performed according to the criterion.Such a method improves the design of a 3D modeled object.

Abstract translation: 本发明特别涉及一种用于设计3D建模对象的方法。 提供了一种具有代表几何对象的节点和每个表示关系的弧的建模图，其中过程关系由单向弧表示，其中连接几何对象的关系还包括由双向弧表示的活动关系，并且其中提供 建模图表遵循建模图的每个强分量的所有弧都是双向的标准。 在添加之前添加关联定义3D建模对象的数据中包含的两个几何对象的关系，该方法选择要通过要添加的关系链接的两个几何对象，根据该标准执行选择。 这种方法改进了3D建模对象的设计。