该源码是栅格数据空间分析中进行数据处理和分析最常见的方法，能够解决各种类型的问题尤其重要的是，它是建立复杂的应用数学模型的基本模块-The source is raster data spatial analysis in data processing and analysis of the most common method, to solve the problem of various types of particularly important, it is a basic mod