3-d plotting surface and contour

I am trying to plot a figure (a ships hull). I want to plot a surface plot and a contour plot but I want the contour plot on the bottom of the Z axis. So if the z axis runs from 0 up to 2 the hull goes from 2 down to 1. Then i want a gap and the contour plot on 0 so its at the bottom of the graph not at the bottom of the figure. I tried using surfc and surf and contour but I can't figure out how to move the contour graph down the Z axis so it is separate of the hull. I hope that makes sense. Thanks.

[Sean Smith]

it puts the contour graph at z=0 which is the top of the graph (the top of the hull) I need it at the other end of the z-axis. I made those numbers up, sorry for the confusion. My Z axis is decreasing, so 0 is at the top and -2 is at the bottom. I need the contour plot at -2 which would be all the way under the hull, not at 0 which is on top of the hull.

Answer 1

[Fangjun Jiang]

Will this example help?

A=peaks;
surf(A+10);
hold on;
contour(A);
grid on;

Answer 2

[Walter Roberson]

You should not require anything more than "hold on". contour() outputs patch objects that, in effect, have Z of 0.