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参数化设计中的对象约束模型及反向约束的研究
引用本文:马翠霞,孟祥旭,龚斌,屠长河.参数化设计中的对象约束模型及反向约束的研究[J].计算机学报,2000,23(9):991-995.
作者姓名:马翠霞  孟祥旭  龚斌  屠长河
作者单位:1. 中国科学院软件研究所北京100080
2. 山东大学计算机科学系济南250100
基金项目:本课题得到国家自然科学基金(69873028)、国家“八六三”高技术研究发展计划(863-511-942-025)和山东省青年科学家基金(9806)资助.
摘    要:应用图论方法,建立了基于有向超图的对象约束模型,提出了压缩十字链表形式的网状存储结构,能够完整,准确地记录设计者的设计意图,实现尺寸及参数驱动图形的功能清晰地表示约束间的双向约束关系,有效地实现了约束的传播与救解,其完备的表不方式可方便地实现反向约束求解。同时利用面向对象技术,高效地实现了实体及约束建模,采用相应的类层次结构,充分发挥对象的封装性和扩展性,提出了一种方便灵活的参数化设计方法。

关 键 词:参数化设计  反向约束  工程设计  对象约束模型
修稿时间:2000年3月15日

Research on Object Constraints Model and Inverted Constraints in Parametric Design
MA Cui Xia,MENG Xiang Xu,GONG Bin,TU Chang He.Research on Object Constraints Model and Inverted Constraints in Parametric Design[J].Chinese Journal of Computers,2000,23(9):991-995.
Authors:MA Cui Xia  MENG Xiang Xu  GONG Bin  TU Chang He
Affiliation:MA Cui Xia 1) MENG Xiang Xu 2) GONG Bin 2) TU Chang He 2) 1)
Abstract:This paper sets up the object oriented constraints model based on the directed hypergraph and presents the netlike store structure in form of the pressed cross chains through the graphics theory, which can record designers' intent integrally and correctly. They complete the functions of dimension driven and parameter driven graphics and represent the bi directional constraints continently. By making use of the clear data structure to store the constraint model, the method can implement the spread and solution of the constraints efficiently. The self contained representation method can carry out the inverted constraint solution conveniently. Using the object oriented technology, the method can efficiently implement the modeling of the entities and constraints. To refer to the corresponding class hierarchy, the method can also adequately exert the system's encapsulation and extension. It represents one kind of continent and flexible way of parametric design.
Keywords:parametric design  directed hypergraph  object oriented  inverted constraint
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