Representing dimensions, tolerances, and features in MCAE systems
Representing dimensions, tolerances, and features in MCAE systems
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DOI：
10.1109/38.503
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发表时间：
1988-03
影响因子：
1.8
通讯作者：
D. Gossard;R. P. Zuffante;H. Sakurai
中科院分区：
文献类型：
--
作者：
D. Gossard;R. P. Zuffante;H. Sakurai
提出了一种在实体模型中显式表示尺寸、公差和几何特征的方法。该方法将CSG和边界表示结合在称为对象图的图结构中。尺寸由相对位置运算符表示。该方法可以自动地将尺寸值的变化转化为几何和拓扑的相应变化。该表示方法为高级应用程序自动进行公差分析和综合提供了重要的基础。给出了一个基于这种表示的交互式多面体建模器原型的实现.
A method is presented for explicitly representing dimensions, tolerances, and geometric features in solid models. The method combines CSG and boundary representations in a graph structure called an object graph. Dimensions are represented by a relative position operator. The method can automatically translate changes in dimensional values into corresponding changes in geometry and topology. The representation provides an important foundation for higher-level application programs to automate tolerance analysis and synthesis. The implementation of a prototype interactive polyhedral modeler based on this representation is presented.>