example_interp2.asv

matlab从入门到精通第6章书后源码对初学者很有帮助

% example_interp2.m
% 绘制二维插值图形
% 生成测量数据
[X,Y]=meshgrid(-3:0.5:3);
Z=peaks(X,Y);
[XI,YI]=meshgrid(-3:0.125:3);
ZI=interp2(X,Y,Z,XI,YI);
mesh(X,Y,Z);
hold on;
mesh(XI,YI,ZI+20)
hold on;
plot3(X,Y,ZI+20,'ok','');
hold off
axis([-3 3 -3 3 -5 25])