How do I change height and colour of cylinder made with SURF?

By default,we can use Matlab to plot a cylinder using surf command. This is what I've tried so far:

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

the result came out is a blue cylinder with radius 10. how do i change the colour and height in this case?

Answer 1

[Jan]

[x,y,z] = cylinder(10);
z(2, :) = 10;
surf(x,y,z, 'FaceColor', [1,0,0]);

[Cheng Yoong]

What does this line means?

z(2, :)=10;

[Todd Flanagan]

assign all of the elements in row 2 the value 10

[Cheng Yoong]

Is it possible to plot the cylinder horizontally?

If possible can you show me how?

[Jan]

@Cheng: You can try it by your self. "z(2, :)=10; disp(z); z(2, :)=3; disp(z)".

What about "surf(x,z,y)" or "surf(z,y,x)"?

Answer 2

[Walter Roberson]

The simplest way to plot horizontally might be to change the viewpoint and relabel the axes :)

Otherwise you might need to create an hgtransform() that does a rotation and parent the surface to it using surf(x,y,z,'Parent',TheHGHandle)

Answer 3

[Patrick Kalita]

Here's how you would do it with an hgtransform and makehgtform:

% Make the hgtransform and the surface; parent the surface to the hgtransform
[x,y,z] = cylinder(10);
h = hgtransform;
surf(x,y,z, 'Parent', h, 'FaceColor', 'r');
view(3)

% Make it taller
set(h, 'Matrix', makehgtform('scale', [1 1 10]))

% Tip it over and make it taller
set(h, 'Matrix', makehgtform('xrotate', pi/2, 'scale', [1 1 10]))

Answer 4

[Álvaro Romero Calvo]

Here you can find an easy way ;)

https://es.mathworks.com/matlabcentral/fileexchange/64007-generate-cylinder-with-custom-axis

Answer 5

[Tomasz]

k=0:0.2:1;

[X,Y,Z]=cylinder(k,3);

figure

surf(X(1:2,:),Y(1:2,:),Z(1:2,:),'facecolor',[0,0,1])

hold on

surf(X(2:3,:),Y(2:3,:),Z(2:3,:),'facecolor',[0 ,0.4470, 0.7410])

surf(X(3:4,:),Y(3:4,:),Z(3:4,:),'facecolor',[0,1,1])

surf(X(4:5,:),Y(4:5,:),Z(4:5,:),'facecolor',[1,1,0])

surf(X(5:6,:),Y(5:6,:),Z(5:6,:),'facecolor',[1,0,0])

hold off