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    • 6. 发明授权
    • Method for generating progressive solid models based on cellular topology
    • 基于细胞拓扑生成渐进实体模型的方法
    • US07197441B2
    • 2007-03-27
    • US10335855
    • 2003-01-03
    • Jae Yeol LeeHyun Kim
    • Jae Yeol LeeHyun Kim
    • G06F17/10
    • G06T17/10
    • Disclosed is a method for generating progressive solid models based on a cellular topology. A cellular model generating section 10, if a specific feature-based model is inputted, performs a mapping operation on the input feature-based model with reference to an internal feature library, thereby generating cellular topology models based on feature models. A progressive model initializing section 20 composes cells by use of volume attributes of the cells according to a relationship between the input feature-based model and the cells obtained from the cellular topology model to generate an initial cellular model SM0 which is simplified to generate a progressive solid model, and then searches n delta volumes DVi transiting the initial cellular topology model SM0 by composing and decomposing the cells so as to progressively complement the difference between the initial cellular topology model SM0 and the input feature-based model. A progressive model generating section 30 generates n progressive features PFi defined as a face subset of the delta volume and corresponding attributes from the n delta volumes DVi, and outputs n progressive cellular models PFi and the initial cellular model SM0 as the progressive solid model in the form of {SM0, {PF0, PF1, . . . , PFn−1}}.
    • 公开了一种基于蜂窝拓扑生成渐进实体模型的方法。 蜂窝模型生成部10如果输入特定的基于特征的模型,则参照内部特征库对输入的基于特征的模型进行映射操作,由此基于特征模型生成蜂窝拓扑模型。 逐行模型初始化部分20根据基于输入特征的模型和从蜂窝拓扑模型获得的细胞之间的关系,通过使用细胞的体积属性来构成细胞,以产生初始的细胞模型SM0 其被简化以生成渐进式实体模型,然后通过组合和分解单元格来搜索跨越初始细胞拓扑模型SM <0>的n个量纲DV ,以便 逐渐补充初始细胞拓扑模型SM <0>和基于输入特征的模型之间的差异。 渐进式模型生成部分30生成定义为增量体积的面部子集的n个渐进特征PF n i,以及来自n个增量容积的对应属性,并输出n个渐进 细胞模型PF 1和初始细胞模型SM 0作为渐进实体模型,其形式为{SM <0>,{PF < 0 ,PF 1,...。 。 。 ,PF n-1}}。