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面向对象的三维数据模型及其存取实现——以三维城市房屋重建为例
供稿: The object-oriented 3D data model and the realization of its observation——Taking the rebuilding of t 时间: 2019-06-23 次数:

作者：王留召；龙志；魏占营

作者单位：焦作工学院测量工程系；济源市人事局；中国测绘科学研究院GIS所

摘要：由于GIS (地理信息系统 )软件尚无统一、完备的数据模型 ,作者对GIS的数据进行了建模 ,以三维城市房屋可视化模型为例 ,以面向对象的思想构造了三维矢量的数据结构 ,并提出了一种以关系数据库为核心、引入面向对象机制的数据组织方法 ,以此管理图形数据和属性数据 .

关键词：数据模型;面向对象;关系数据库;

分类号：P208

The object-oriented 3D data model and the realization of its observation——Taking the rebuilding of the city 3D buildings as examples

Abstract：With the development of GIS technology, currently, construction of 3D Model is becoming the internal and abroad hotspot. The construction of 3DGIS is discussed. Taking model of 3D urban building visualization as an example, a 3D objectoriented 3D vector data structure is built. When organizing data, RDBS, which is the core and meanwhile, added with Objectoriented mechanism, is adopted, which made it possible to manage graphic data and property data at the same time by RDBS.

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