sphere
Creates a new sphere.
Syntax
-
sphere([a[, r]])-
ais a three-dimensional vector -
ris a positive real number
-
Description
sphere(a, r) creates a sphere of radius r centred at a.
If omitted, a defaults to ❨0, 0, 0❩ and r to 1.
Consequently, sphere(a, r) is equivalent to ellipsoid(a, ❨r, r, r❩).
The object is shown in the current scene and a reference to the object is returned.
The AdjustVisual function can be used to adjust the appearance of the sphere. See Visual settings for a list of applicable settings.
Examples
sphere()
scene("balls"); for(k, 1, 10, sphere(10⋅RandomVector(3), RandomReal())); scene("balls")
scene("balls"); for(k, −10, 10, if(k ≠ 0, sphere(❨0, 0, k❩, abs(k)/2.5))); scene("balls")
