C#源码，包含基于ArcGIS Engine的栅格数据操作及在淹没面积计算使用的种子蔓延算法。-C# source code, including the spread algorithm based on ArcGIS Engine raster data manipulation and seed in the inundated area.

实现在arcgis engine中对地图两点之间距离的量算以及绘制的多边形面积的计算-Calculation of the amount calculated to achieve the distance between two points, and the polygon area map drawn in arcgis engine in