以三维建模引擎为核心的新型建筑CAD系统研究

RESEARCH OF 3D MODELING ENGINE BASED ARCHITECTURAL CAD SYSTEM

为了开发建筑设计全过程集成 CAD系统 ,提出了一种以三维建模引擎为核心的新型建筑 CAD系统3DMECAD ( 3D Modeling Engine Based Architectural CAD System) .该系统的三维建模引擎是以基于特征的 CSG与 B-rep混合模型为基础 ,作为系统的公用数据模块 ,实现向计算分析、仿真演示、设计成果提交等外部子系统模块的数据转化 .同时利用特征识别技术实现各模型数据的同步更新 ,保证设计结果的可靠性 .本文论述了 3DMECAD的基本设计思想、结构体系及具体实现技术 .该系统具有集成度高、适用性强、可靠性高等优点 ,能够完成建筑设计全过程的各项工作 。

In order to develop a CAD system that can perform all the tasks of architectural design procedure, a new architectural CAD system called 3DMECAD (3D Modeling Engine Based Architectural CAD System) has been developed. The 3D modeling engine of 3DMECAD is based on a feature based CSG &B rep mixture data model. Using this data model as common data block, the modeling engine can provi de specific models to outer subsystems such as calculation and analysis, simulation display, design results provider, and so on. Feature recognition technique was used to achieve data synchronous update. 3DMECAD's basic design ideas, framework and special realized techniques were discussed in this paper. 3DMECAD had the characteristics of high integration, wide application, high reliability, and so on. It can perform all the tasks of architectural design procedure, and had wide application.