面向路桥施工问题求解的功能图形数据模型

摘要

In view of the defects existing in present engineering data models for the road bridge construction problem solving, the function graphic data model is provided. Taking the function graphic modeling technology as the instruction, with the feature line and the feature line array as the basic data structure, this paper introduces the length-variable and unstructured engineering graphs, conducts the related graphic and professional computation, describes the collaborative relationship among feature line arrays, and the model supports dynamic computation process for function graphic objects. The result proves it a new way to create complicated engineering graphic objects with simple data structure and its engineering application value in engineering software development.%针对现有路桥施工问题求解所常采用的工程数据模型的缺陷,提出了功能图形数据模型.以功能图形对象建模技术为指导,以特征线、特征线数组为基本数据结构描述具有可变长非结构化的工程图形,进行相关几何和专业计算,表达特征线数组间存在的协同合作关系,支持功能图形对象的动态计算过程,实现了一种利用简单数据结构创建复杂工程图形对象的新途径,表现出广泛的工程软件开发应用价值.