基于Google Earth的地图要素矢量化及数据处理

摘要

In the past, when we producted small and medium-scale digital maps, roads, water systems, residential areas and other geographical factors, there are two general sources, one is measured from the coordinate data in the field, the other is the use of existing vector topographic maps, then in addition there any other ways？ As an attempt to make this an area of mining maps, for example, describes how on Google Earth vector graphics needs of the various geographical elements, and vector data to KML file format and then imported into ArcGIS after a coordinate system in the projection trans- formation, and uhimatelv compiled into a map of the process.%过去我们在制作中小比例尺数字地图时,道路、水系、居民地等地理要素的来源一般有两种,一种是来自于野外的实测坐标数据,另外就是利用已有地形图进行矢量化。作为一种其他方法的尝试,本文以制作某地区的矿业权分布图为例,讲述了在Google Earth上矢量化制图所需要的各种地理要素,并将矢量数据以KML文件格式存储,然后导入到ArcGIS中经过坐标系投影变换,最终编辑成图的过程。