根据克里格算法绘制等值线，可以很好的利用为二维到三维中-According to Krieger isogram mapping algorithm can be used as a very good two-dimensional to three-dimensional in

用VB.NET调用地理绘图软件Surfer的接口实现提取边缘，并绘制等值线图、矢量图、阴影地形图、维表面图-VB.NET using geographic mapping software called Surfer extract the edge of the interface and mapping contour map, vector, shaded relief map, map-dimensional surface