Rotating a cylinder by 90 degrees

I've generated a cylinder as follows: [x,y,z]=cylinder([0,10,10,0],100);

z([1,2],:)=0;

z([3,4],:)=100;

mesh(x,y,z)

axis equal; I want to have the cylinder lying flat i.e. a rotation by 90d degrees. I've tried using the rotate function but couldn't get it to work, any suggestions?

Answer 1

[Star Strider]

I don’t understand what your problem with rotate is.

Try these:

[x,y,z]=cylinder([0,10,10,0],100);

z([1,2],:)=0;

z([3,4],:)=100;

figure(1)
hm = mesh(x,y,z);
rotate(hm, [1 0 0], 90)
axis equal

figure(2)
hm = mesh(x,y,z);
rotate(hm, [0 1 0], 90)
axis equal

figure(3)
hm = mesh(x,y,z);
rotate(hm, [1 1 0], 45)
axis equal

[Julien Cotton]

Those lines do not work for me : get the following error :

Error using horzcat

Dimensions of arrays being concatenated are not consistent.

Error in rotate (line 49)

tmp =r*[x(:) y(:)]';