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matlabplot

Does anyone know how to plot a dome (aka half sphere) in MATLAB...or anyother programming language?

I need to plot a dome or half a sphere and be able to change the dimensions of the dome. I figured MATLAB would be my best choice.

any suggestions?

THanks

Solution

  • The SPHERE function generates x, y, and z coordinates for a spherical surface. You just have to remove points corresponding to the bottom of the sphere to make a dome. For example:

    [x,y,z] = sphere;      %# Makes a 21-by-21 point sphere
x = x(11:end,:);       %# Keep top 11 x points
y = y(11:end,:);       %# Keep top 11 y points
z = z(11:end,:);       %# Keep top 11 z points
r = 3;                 %# A radius value
surf(r.*x,r.*y,r.*z);  %# Plot the surface
axis equal;            %# Make the scaling on the x, y, and z axes equal