Sampling of the cylinder in cylindrical coordinates

Hi everyone, I am struggling in creating and sampling of a cylinder in cylindrical coordinates, I used cylinder() func but it gives a cylinder just in a height of 1, whereas I need a variable heights... And after that I need to be able to sample the cylinder in both Z axis and theta axis

Answer 1

[Ryan G]

This is all very well explained in the doc, but here it goes.

[X,Y,Z] = cylinder(r,n); %r is radius n is number of points oyu want
[THETA,RHO,ZP] = cart2pol(X,Y,Z); %convert to polar coordinates

If you want to adjust the height you simply adjust Z in either polar or cartesian coordinate. You can use a gain:

Z = Z*1.5;

or a bias:

Z = Z + 5;

If you want to re-plot the data try

surfc(X,Y,Z);

Answer 2

[Rashid]

but plotting is done just in cartesian, what about cylindrical coordinates? and what about sampling?