自动绘制等值线的方法从技术方向上看可以分为两大类,插值和曲线拟合.其中曲线拟合总的来说效果不如插值算法经典和应用广泛,效果也较逊色.这里着重介绍插值算法.-Automatic drawing method isogram direction from a technical point of view can be divided into two categories, interpolation and curve fitting. In which the effect of curve

包括基本的克里金(Kriging)插值法实现代码，仅实现基本方法部分，不包含扩展克里金方法- kriging uses ordinary kriging to interpolate a variable z measured at locations with the coordinates x and y at unsampled locations xi, yi. The function requires the variable vstruct