How to create a Cap Sphere .

Hi all,

I would like to plot a cap sphere with matlab so, How to write this code. Please help me !

Thanks in advand!

Answer 1

[Image Analyst]

Do you mean like this:

workspace
R = 2;
[x,y,z] = sphere;
% Define rows to keep as those with Z in the middle
topCap = z > .5;
bottomCap = z < -.5; 
% Max out z at the cap values where x and y are in the cap.
z(topCap) = 0.5;
z(bottomCap) = -0.5;
% Display it.
surf(R*x, R*y, R*z);
axis equal

[Quaan Nguyeen]

Thanks for your help!

But I would like to use the coordinate of sphere to write it: That is

Please help me with this question again, How to write it by matlab using above fomular :D Thank alot!

[Image Analyst]

I don't think that's a MATLAB question. But if you get x, y, and z, by using for loops over phi and theta, then simply do what I did to clip the z values to some cap values:

% Max out z at the cap values where x and y are in the cap.
z(topCap) = 0.5;
z(bottomCap) = -0.5;