griddata()——网格数据网格化和曲面拟合函数。griddata的用法ZI = griddata(x,y,z,XI,YI)griddata的实例rand('seed',0)x = rand(100,1)*4-2; y = rand(100,1)*4-2;z = x.*exp(-x.^2-y.^2);ti = -2:.25:2; [XI,YI] = meshgrid(ti,ti);ZI = griddata(x,y,z,XI,YI);mesh(XI,YI,ZI)