一种数字地图切片算法的实现

Implementation of a digital map tiling algorithm

针对Web地图应用中地图瓦片编码计算和地图切片需要,本文提出一种实用的数字地图瓦片编码计算方法,并以ArcGIS Mxd地图文档为地图切片数据源,编程实现了基于该算法的数字地图自由、无缝切片。本文实现的基于Mxd地图文档的切片算法具有方便快捷、支持多种数据源等优点,为开发高效Web地图应用提供参考。

Aiming at the needs for using map tiles and creating map tiles in web map applications, this study put forward a practical coding algorithm for digital map tiles. Based on the map tile algorithm, a program of creating digital map tiles for ArcGIS Mxd map documents was implemented, which could pro duce seamless map tiles at any scale in any extent. The Mxd map tiling program would be used easily and conveniently with supporting multiple data source, as a reference for developing high-efficiency web map applications using map tiles.