铁道标准设计Issue(3)：54-58,5.DOI:10.13238/j.issn.1004-2954.2014.03.013
箱梁三维实体自动建模方法研究
Research on Automatic Modeling Method of Three-dimensional Entity for Box Girder
摘要
Abstract
Three-dimensional entity model can visually and completely reflect the geometric and characteristic information of an entity. After research on box girder structure characteristics, on model variables and on modeling process, the paper summarized the modeling rule of box girder structures, put forward the modeling method which is suitable for different kinds of bridge structures, and pointed out the matters needing attention in modeling process. In this paper, with the help of Visual C++and ObjectARX, and by creating the graph entity and regions, the modeling parameters were formed. Furthermore, by using object container of AcDb3dSolid class, the interface functions among stretching, sweeping and lofting were established for the three-dimensional entity of bridge structure, then colors and material or texture were added into the entity. Finally, by means of graphic transformation and Boolean calculation, the three-dimensional entity of bridge structure was assembled integrally, thus the automatic modeling of three-dimensional entity of bridge structure were achieved.关键词
桥梁结构/计算机辅助设计/三维实体建模/参数化/ObjectARXKey words
bridge structure/computer aided design/three-dimensional entity modeling/parameterization/ObjectARX分类
交通工程引用本文复制引用
朱德荣..箱梁三维实体自动建模方法研究[J].铁道标准设计,2014,(3):54-58,5.基金项目
省级自然科学基金(1212RJZA042) （1212RJZA042）
