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Exploreing 3D City Models of CityGML
Author(s): 
Pages: 5-7,42
Year: Issue:  z1
Journal: Urban Geotechnical Investigation & Surveying

Keyword:  CityGML三维城市模型数字地形模型建筑物模型;
Abstract: 研究了三维城市模型数据数据交换格式CityGML,阐述了CityGML三维城市建模的基本概念,重点介绍其数字地形模型和建筑物模型.CityGML基于GML3开发,提供了描述三维城市对象的公共信息模型,涵盖了几何、拓扑、语义等方面.在CityGML中,对象的空间属性和语义属性通过5个连续的细节层次进行组织.
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