摘要
随着对遥感及GIS数据研究的不断升温，数字高程模型（DEM）数据的需求量也随之增大。但现有的DEM数据量较少，目前解决这一问题主要依靠第三方软件，无形之中大大加大了研究成本。为解决这一现存问题，故寻求一种算法，可从AutoCAD的DXF格式图形文件中快速精准地提取地形信息，并以较低的成本快速转换为DEM数据，可为进一步的地形信息分析提供精准的数据。
with the researching of remote sensing and GIS is constantly warming,and Digital Elevation Model（DEM）data is also increasingly demanded.But now,the resources of DEM data is smal can be used,just depend on the Third-party software,and increase the cost invisibly.In order to solve this problem,we are looking for a method that can extract terrain information fastly and accurately from a DXF file edited by AutoCAD,and use lower cost for the rapid conversion of DEM data.In this way,can provide accurate data for the further analysis of terrain information.
出处
《电子世界》
2014年第19期118-119,共2页
Electronics World
