摘要
介绍了利用地理信息系统软件ArcGIS从扫描地形图中建立数字高程模型的方法,在实验的过程中提出了通过添加隔断线与多边形生成TIN表面,可以更好地控制TIN表面的形状,并生成湖北大冶市DEM图。实验表明,这种方法除了地形图的扫描外,其他过程都在ArcGIS9.2软件中完成,成本低、速度快、容易更新。
The method of constructing DEM using geographical information system software ArcGIS was introduced, the shape of the surface TIN can better control by using cut off line and polygon in TIN surface, and generated DEM map of Daye city. This method has many advantages, such as low cost, rapid building, easy to update, and real time organization according to the scope of project.
出处
《地理空间信息》
2009年第5期69-71,共3页
Geospatial Information
基金
地理信息科学教育部重点实验室开放研究基金资助项目(LGISEM0805)
