3D GIS与3D GMS中的空间构模技术  

Spatial Modeling Technologies for 3D GIS and 3D GMS

作　　者：吴立新[1] 史文中[2] Christopher Gold 

机构地区：[1]中国矿业大学北京校区3S与沉陷工程研究所,北京100083 [2]香港理工大学土地测量与地理信息学系

出　　处：《地理与地理信息科学》2003年第1期5-11,共7页Geography and Geo-Information Science

基　　金：国家自然科学基金(59804006);教育部"高校青年教师奖"专项基金;香港研究资助(3-ZB40)

摘　　要：3DGIS和3DGMS是近10a来地学领域并行发展的两大领域。该文从研究对象、数据来源、空间参照、空间构模、拓扑描述、空间量算、空间分析及应用领域等方面分析了3DGIS和3DGMS异同,并从数学模型、高程特征、属性特征和构模方式等方面讨论并重新界定了空间维数问题。重点分析了空间构模技术,将3DGIS和3DGMS中的空间构模分为基于面模型、基于体模型和混合构模3大类,并进行了分析比较和讨论。指出3DGIS和3DGMS将殊途同归,并最终建立全要素的真3D地球信息系统。3D Geographical Information System (3D GIS) and 3D Geosciences Modeling System (3DGMS) are the two parallel developing domains in Geosciences during the past decade. The differences and the common features between 3D GIS and 3D GMS are analyzed for the researching object, data source, spatial reference, spatial modeling, topological description, spatial measurement, spatial analysis and applications field. The spatial dimension is defined based on the comparison of mathematical models, elevation features, attribute features and modeling manners. Being classified into facial modeling, volumetric modeling and mixed modeling, the spatial modeling technologies are systematically analyzed, compared and discussed. The paper points out that the 3D GIS and 3D GMS will reach to the same destination and the full real 3D Geosciences Information System will be finally established.

关 键 词：三维GIS 三维地学模拟系统 地球信息系统 空间维数 空间构模 地理信息系统 

分 类 号：P208[天文地球—地图制图学与地理信息工程]