摘要
介绍了DEM的NSDTF-DEM格式及Arc GIS明码Grid格式,后者的DEM格式应用更广泛并支持更多的GIS软件对其进行读取及处理,故本文通过自编程序实现了前者到后者的转换。
This paper introduces the DEM NSDTF-DEM format and Arc GIS Grid format code,the latter DEM format has wide application and support for their reading and processing of more GIS software,so this paper by program of the former to the latter conversion. DEM quality inspection and evaluation of precision is an important reference for the construction of the standardization of the national fundamental geographic information,this paper describes in detail the various DEM quality inspection method based on MapGIS,and the DEM accuracy was evaluated,so as to grasp the product quality as the 4D DEM provides the guiding method.
出处
《测绘与空间地理信息》
2015年第4期141-143,146,共4页
Geomatics & Spatial Information Technology
