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Rotate 3D surface matrices

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I have three matrices for surf command: X, Y, Z. I need to rotate the matrices along z-axis by some degrees. I remember there is a matlab command for that (maybe from image processing toolbox), but I can't recall what is it. The command will make the size of matrices larger, with many zero elements in the four corners. Anyone knows what is the rotation command?

Accepted Answer

darova
darova on 21 Feb 2020
You can manually change data. Just use rotation matrix
a = 15; % angle rotation
R = [cosd(a) sind(a);-sind(a) cosd(a)];
V = R*[X(:) Y(:)]'; % rotate about Z axis
X1 = reshape(V(1,:),size(X)); % new data
Y1 = reshape(V(2,:),size(Y));
surf(X1,Y1,Z);
  1 Comment
Gifari Zulkarnaen
Gifari Zulkarnaen on 21 Feb 2020
I found the answer: imrotate command
But thanks anyway for the insight.

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