请教Matlab的griddata的用法

Question

如题所述

Answer 1

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)