MATLAB: Extracting a 2d plane from a 3d surface plot

surf surface

Hi guys, sorry if this is an easy question but I'm new to matlab. I've done a surface plot with two 3-d planes in it. I have vectors x.dat and y.dat, and the 2 by 2 matrices z1.dat and z2.dat. I can plot both of these surfaces on one figure by
 load x.dat
 load y.dat
load z1.dat
load z2.dat
hold on;
surf(x,y,z1,'FaceColor',[1 0 0],...
    'EdgeColor',[1 0 0]);
surf(x,y,z2,'FaceColor',[0 0 1],...
    'EdgeColor',[0 0 1]);
hold off;
This plots z1 and z2 nicely in 3d space with one of them blue and the other red. What I'd like to do is plot the plane z=0, to show the intersection of z1 and z2 in the x-y plane at z=0. Is this possible to do with matlab? Thanks in advance for any suggestions.

Best Answer

How about
contour(x, y, z1-z2, [0 0])
?
Related Question