MATLAB: Nothing show up when plotting with pcolor in 2D

Question

I want to plot with "pcolor" in matlab, my X is [1*3529], Y is [1*2540], my Z is [2540*3529],

when I write the command pcolor(X,Y,Z) nothing show up, Why should it be like that?

Thanks,

Answer 1

The syntax is fine, so it should work. Possibly OpenGL issues? Try:

figure;
pcolor(X,Y,Z);
set(gcf, 'renderer', 'zbuffer');