各种插值程序，是学习DEM的号东西，是我在学习DEM时候精心编写的。-A variety of interpolation procedure, a resolution of DEM to learn things, when I was well prepared to learn DEM.

完成一个DEM内插算法，需要输入数据，然后计算一个未知高程的点的内插高程。-Completion of a DEM interpolation algorithm, the input data, and then calculate the interpolated elevation of a point of unknown elevation.

DEM 移动曲面拟合插值算法，采用反距离平方加权平均-DEM moving surface fitting interpolation algorithm, using inverse distance squared weighted average