摘要
图层是GIS数据组织和管理的基本单位,对空间数据进行分层是GIS对数据管理的重要内容,分层管理便于数据处理和分析,在GIS图层支持下,地图编辑、制图综合、专题制图会更加方便、准确、迅速,利用不同图层可完成查询检索、叠加分析等空间分析任务。
Map layer is a basic unit of GIS data organizing and management. Layer management of spatial data is very important. Map layer contributes to data editing and analysing. Based on GIS map layer,it is more convenient, accurate, and prompt to edit map, synthesize map and make special map. By using different GIS map layer, spatial analysis as well as data search, overlapping analysis, spatial link and so on can be finished.
出处
《测绘科学》
CAS
CSCD
2003年第3期71-73,共3页
Science of Surveying and Mapping
关键词
地理信息系统
图层
制图
空间分析
geographic information system
map layer
charting
spatial analysis