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公开(公告)号：EP3563353A1
公开(公告)日：2019-11-06
申请号：EP17777682.0
申请日：2017-09-07
发明人： HUANG, Jianbing , CARTER, Michael B. , LI, Kang
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2.发明公开METHOD AND SYSTEM FOR B-REP FACE AND EDGE CONNECTIVITY COMPRESSION 有权METHOD AND SYSTEM FOR B-REP-表面和边缘拓扑压缩
公开(公告)号：EP2537105A1
公开(公告)日：2012-12-26
申请号：EP11707948.3
申请日：2011-02-11
摘要： A system, method and computer program product for reconstructing B-Rep data for a graphic model. A method includes receiving B-Rep data of a graphic model, the B-Rep data including edges and coedges. The method includes constructing, from the B-Rep data, a vertex table having coordinates of a plurality of vertices of the graphic model and an edge table associating each edge of the graphic model with at least one of the plurality of vertices of the graphic model. The method includes storing the constructed edge table and vertex table associated with the B-Rep data.
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公开(公告)号：EP2537105B1
公开(公告)日：2018-05-30
申请号：EP11707948.3
申请日：2011-02-11
摘要： A system, method and computer program product for reconstructing B-Rep data for a graphic model. A method includes receiving B-Rep data of a graphic model, the B-Rep data including edges and coedges. The method includes constructing, from the B-Rep data, a vertex table having coordinates of a plurality of vertices of the graphic model and an edge table associating each edge of the graphic model with at least one of the plurality of vertices of the graphic model. The method includes storing the constructed edge table and vertex table associated with the B-Rep data.
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公开(公告)号：EP2783351B1
公开(公告)日：2018-03-28
申请号：EP12805829.4
申请日：2012-11-20
IPC分类号： G06F17/50 , G06F17/30 , G06T19/00 , G06T15/00 , G06T17/00 , G06F3/0481 , G06F3/0484
CPC分类号： G06F3/0484 , G06F3/0481 , G06F17/30 , G06F17/30312 , G06F17/30672 , G06F17/30713 , G06F17/30994 , G06F17/50 , G06T15/005 , G06T17/005 , G06T19/00 , G06T2200/16
摘要： Systems and methods for massive model visualization in product data management (PDM) systems. A method includes storing a hierarchical product data structure that includes a plurality of occurrence nodes and component nodes. The method includes creating an occurrence equivalency table from, the hierarchical product data structure, that identifies at least one anchor occurrence node and at least one equivalent occurrence node. The product component corresponding to the equivalent occurrence node is spatially located within a specified distance threshold of product component corresponding to the anchor occurrence node. The method includes creating an anchor occurrence table corresponding to the hierarchical product data structure that lists a plurality of unique occurrence chain represented by the hierarchical product data structure, where each equivalent occurrence node is replaced by its corresponding anchor occurrence node, and that associates each listed unique occurrence chain with an associated cell index value.
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公开(公告)号：EP2783351A1
公开(公告)日：2014-10-01
申请号：EP12805829.4
申请日：2012-11-20
IPC分类号： G06T15/00
CPC分类号： G06F17/30 , G06F3/0481 , G06F3/0484 , G06F17/30312 , G06F17/30672 , G06F17/30713 , G06F17/30994 , G06F17/50 , G06T15/005 , G06T17/005 , G06T19/00 , G06T2200/16
摘要： Systems and methods for massive model visualization in product data management (PDM) systems. A method includes storing a hierarchical product data structure that includes a plurality of occurrence nodes and component nodes. The method includes creating an occurrence equivalency table from, the hierarchical product data structure, that identifies at least one anchor occurrence node and at least one equivalent occurrence node. The product component corresponding to the equivalent occurrence node is spatially located within a specified distance threshold of product component corresponding to the anchor occurrence node. The method includes creating an anchor occurrence table corresponding to the hierarchical product data structure that lists a plurality of unique occurrence chain represented by the hierarchical product data structure, where each equivalent occurrence node is replaced by its corresponding anchor occurrence node, and that associates each listed unique occurrence chain with an associated cell index value.
摘要翻译： 用于产品数据管理（PDM）系统中大规模模型可视化的系统和方法。 一种方法包括存储包括多个出现节点和组件节点的分级产品数据结构。 该方法包括从分级产品数据结构创建识别至少一个锚发生节点和至少一个等效发生节点的发生等价表。 对应于等效发生节点的产品组件在空间上位于与锚发生节点对应的产品组件的指定距离阈值内。 该方法包括创建对应于分级产品数据结构的锚定发生表，其列出由分级产品数据结构表示的多个唯一出现链，其中每个等效出现节点由其相应的锚定发生节点代替，并且将所列出的各个列表相关联 具有相关细胞指数值的独特发生链。
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公开(公告)号：EP2406743A1
公开(公告)日：2012-01-18
申请号：EP10709143.1
申请日：2010-03-12
摘要： A method and related CAD system and computer readable medium. A method includes loading an object model in a CAD system, the object model including a plurality of parts each of which may contain one or more shapes which in turn are composed of multiple polygons. The method includes adding the shapes to a spatial tree, the shapes each corresponding to at least one cell, each cell corresponding to a spatial region of the object model. The method also includes, for each cell that is too complex to process within a memory space of the CAD system, subdividing the cell into a plurality of subcells using a first subdivision process. The method also includes subdividing each cell into a plurality of subcells using a multi-threaded subdivision process, and combining the subcells into the spatial tree
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8.发明公开
公开(公告)号：EP2050076A2
公开(公告)日：2009-04-22
申请号：EP07814003.5
申请日：2007-08-11
IPC分类号： G06T17/20
CPC分类号： G06T17/20
摘要： A system, method, and computer program for storing a polygonal topology, comprising representing a primitive with a plurality of vertices, internal half- edges and external half-edges; and storing said plurality of vertices in a vertex array and said plurality of external half-edges in a half-edge array, wherein said arrays are indexed and parallel to one another; whereby said primitive is re¬ created from said parallel array with said internal half-edges that are implicit from a primitive structure and appropriate means and computer-readable instructions.
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