基于天正CAD的三维建筑构件信息抽取方法

Information Extraction Method for 3D Building Component Based on T-Arch

面向公众服务的建筑物数据模型,需对可视化与应用分析提供支持;能对建筑内部进行表达,并包含相应的语义信息。以天正CAD建筑施工图为数据来源,基于其所提供的组码信息与二次开发接口,实现了建筑构件的识别与信息抽取。基于该方法所提取的建筑构件包含语义、定位、几何、属性、关系等信息,能为三维城市建设中内外一体化三维建筑模型的建立和应用提供完备的数据来源。

The building data model for public service needs to support visualization and application analysis for the building. According to this, the building data model can express the indoor environment of building and contains the corresponding semantic information. Based on the T-Arch's architectural drawings, the recognition and extraction of building components were carried out based on the group code information and the application interface of T-Arch in this paper. On the basis of this method, the information of semantic, position, geometric, property and relationship of the building components were extracted. All these information can provide a complete data source for the holistic model of indoor and outdoor 3D building, which can be applied in the construction of 3D city.