一种适用于移动在线地图数据的精简方法

Data Reduction Adapted for Online Mobile Map Data

移动在线地图服务需要对原始地图数据进行精简,得到符合移动特性需求的在线地图数据。提出了一种移动地图数据精简方法,对原始地图数据按照流程分别进行分级、几何属性简化和分块,经过精简后得到的地图数据量大大减少,更加适应移动在线地图应用。

In order to meet the need of online Mobile GIS service and make the online map data fit with the character of mo- bile, programmer have to do some data reduction work on the primitive data. In this paper, a method of data reduction was presented, which reduced the primitive data size by data classification, data cutting block and data reduction of geometry feature. The data processed in this way was less than others mobile GIS data and proved to be adapting for the mobile appli- cation.