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Draw sphere
plot_sphere(C, R, ls) draws spheres in the current plot. C is the centre of the sphere (3x1), R is the radius and ls is an optional MATLAB color spec, either a letter or a 3-vector.
H = plot_sphere(C, R, color) as above but returns the handle(s) for the spheres.
H = plot_sphere(C, R, color, alpha) as above but alpha specifies the opacity of the sphere were 0 is transparant and 1 is opaque. The default is 1.
If C (3xN) then N sphhere are drawn and H is Nx1. If R (1x1) then all spheres have the same radius or else R (1xN) to specify the radius of each sphere.
Create four spheres
plot_sphere( mkgrid(2, 1), .2, 'b')
and now turn on a full lighting model
lighting gouraud light
© 1990-2014 Peter Corke.