首先你要有等高线或控制点shp文件一．在Arcmap中,在工具栏处右击,添加3D analyst工具条,加载等高线矢量图层1.生成TIN不规则三角网：Create/Modify TIN->Create TIN from features...,Height source 选高程属性.ok2.由三角网TIN转为DEM:convert->TIN to raster.
