佛山市基础地理信息房屋类地物切片式数据整理

Urban Basic Geomatics Housing-Slicing Features Collate

城市基础地理信息是指城市最基本的地理信息,包括各种平面和高程控制点、建筑物、道路、水系、境界、地形、植被、地名及某些属性信息等,用于表示城市基本面貌并作为各种专题信息空间定位的载体.由于数据标准滞后和技术手段局限等原因,以往传统的CAD图形数据不能满足GIS入库的要求.因此数据整合是测绘工作者面临的一个重要课题.现对佛山市基础地理信息数据中房屋类数据整理采用的房屋切片这一新的处理方式进行了详细介绍,并与传统的房屋构面方式进行了对比.经实践证明,这种切片整理方式比传统处理方式更能体现建筑的立体结构和相互关系,可以获取更大地信息量,更有利于后期数据挖掘,可视性更强.

Urban basic geographic information,including plane and elevation control point,buildings,roads,water system,boundary,topography,vegetation,the names and certain attributes,is used to express the basic outlook on various topics information and as spatial location of the carrier of the city.In this paper,the new way of house slicing used in the Foshan based on GIS data production process was presented and compared to the traditional way.The new way is better than the traditional way in reflecting 3D structure and topology relation of architecture,achieving more information and better visibility.