What are the outputs of Sphere?

Hello,

I am trying to learn matlab and am looking to get a sphere of points and plot them (i actually want a semisphere). I am trying to model some data that I will be getting and hoping to have it as a series of points.

So I just assumed that the matrices that were outputted simply reflected a corresponding series of points that were connected by the surf function. I tried to re-order the points to put it into a 3x441 vector, so each row would be a coordinate on the sphere. When I tried to plot this it did not turn into a sphere. What do these matrices mean? is it possible to get a cloud of points out of them and have it work with surf and other functions like surfnorm?

Thanks

Code:

n0 = 20; [xo,yo,zo] = sphere(n0); surf(xo,yo,zo)

Answer 1

[Azzi Abdelmalek]

[n,m]=size(zo)
n2=1:ceil(n/2)
surf(xo(n2,:),yo(n2,:),zo(n2,:))

%or

surf(xo(n2,:),yo(n2,:),-zo(n2,:))

[Charalambos Hadjipanayi]

I do not think that this answers the question.