摘要
以Delphi7开发环境和GIS(地理信息系统)组件MapX为例,采用中国地图2002-2003年数字化电子地图版作为地图数据,以国家无线电监测中心的台情数据库查询系统为基础,探讨了在Delphi7环境中基于MapX技术的电子地图查询功能原理,并详述了使用MapX的态层技术实现电子地图查询功能的方法.
This Paper studies the principles of query functions on the digital map which embedded in Delphi7 through MapX component and provides a map query technology which takes the active layer as a query tool in the MapX. The map data in this paper is from 2002-2003 digital China map, the technologies involved are based on Station Query System which has been actually implemented in the Radio Short-wave Monitoring Network.
出处
《西南民族大学学报（自然科学版）》
CAS
2004年第4期524-528,共5页
Journal of Southwest Minzu University(Natural Science Edition)
