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为了支持建筑设计全过程集成 CAD系统 ,创建能够描述和组织建筑设计全过程中各种设计信息和各项设计活动的系统模型 ,提出了一种基于特征的 CSG/B- rep混合建模方法。该方法利用 CSG/B- rep混合建模手段 ,将划分为不同层次的形态模型和活动模型按照一定的关系组织起来 ,并将对象特征按照层次划分置于模型的不同层次上 ,且在模型数据结构的各个层次设置了可扩展数据结构 ,形成了支持建筑设计全过程的可扩展特征数据模型。以该系统模型开发的软件已经说明 ,这种特征建模方法工作效率高、模型适用性强 ,能够实现支持建筑设计全过程的各项工作。
In order to support the integrated CAD system in the whole process of building design and to create a system model that can describe and organize various design information and design activities in the whole process of building design, a feature-based CSG / B-rep hybrid modeling method is proposed. The method uses CSG / B-rep mixed modeling method to organize the morphological model and activity model divided into different levels according to a certain relationship, and the object features are arranged on different levels of the model according to the hierarchical level. In the model data Extensible data structures are set at all levels of the structure, forming an extensible feature data model that supports the entire process of building design. Software developed with this system model has demonstrated that this method of feature modeling is highly efficient, adaptable to the model, and supports all aspects of building design.