一种基于形状文法的建筑物三维建模新方法  

A Shape Grammar Based Method for 3D Building Modeling

作　　者：薛梅[1,2] 

机构地区：[1]北京大学遥感与地理信息系统研究所,北京100871 [2]重庆市勘测院,重庆400023

出　　处：《地理与地理信息科学》2012年第6期31-34,共4页Geography and Geo-Information Science

基　　金：海外及港澳学者合作研究基金(40928001);"十二五"国家科技支撑计划"高性能航空遥感数据自动处理与加工软件研制"(2011BAH12B07-04)

摘　　要：现有三维建模方法存在侧重可视化表现、忽略模型与建筑物结构规模之间有机联系、细节层次缺乏伸缩性等问题。该文根据建筑构造知识,提出基于形状文法的建筑物三维建模方法,开展建筑物主体建模、纹理细节构建及附属设施建模。实验证明,该方法能提高建筑物三维模型的可重用性和灵活性,在室内外建筑物模型动态生成、城市规划设计等方面有实用前景。The creation of 3D building models is a tedious and complicated task. Existing modeling methods typically focus on vi sualization of the building facade and ignore the connections between models and building structures; different levels of detail and abstraction are needed. As a .solution to above problems, this paper proposes a shape grammar based method which creates 3D building model in a top-down and parametric manner. Shape graft.mar is a method with production rules that iteratively e- volve a design by creating more and more details. The paper explores the model method by first creating a crude volumetric model of a building, then continuing to structure the facade and finally adding details for windows, doors and ornaments. The main advantage of this method is that the creation of the hierarchical structure and the annotation of a model is specified in the modeling process. This semantic information is important for reusing design rules for procedural variations and thereby creating a large variety of architecture population a whole city. The method is used in conceptual design of buildings, batch generating different levels of detail building model and dynamic calculation of the volume of buildings, building area, land area of the planning target. This refining modeling process exhibits great similarities to a software design process, and improves reusability and flexibility of the three-dimensional model building.

关 键 词：形状文法 建筑物 三维建模 生成式建模 

分 类 号：P208[天文地球—地图制图学与地理信息工程]