需要数据：站点降水数据shp，和DEM数字高程模型数据。 功能：根据分散的站点降水和地形进行区域降水差值-Need data: site precipitation data shp, and DEM digital elevation model data. Function: Regional precipitation difference based on scattered site precipitation and terrain

对生成的数字高程模型(DEM)进行粗差检查,能够检查出相应粗差,-To generate digital elevation model (DEM) for gross error checking, can check out the corresponding gross error,

points2grid是一个强大的和可扩展的工具网格LIDAR点云数据生成数字高程模型（DEM）。points2grid采用局部网格法用一个定义在基于用户提供的搜索半径，每个细胞邻域计算网格细胞升高。(Points2Grid is a robust and scalable tool for gridding LIDAR point cloud data to generate Digital Elevation Models (DEM). Points2Grid uses a local gr