ball = sphere(pos=(1,2,1), radius=0.5)
This produces a sphere centered at location (1,2,1) with radius = 0.5, with the current foreground color.
The sphere object has the following attributes and default
values, like those for cylinders except that there is no length attribute:
pos (0,0,0),
x
(0), y(0),
z(0), axis
(1,0,0), color
(1,1,1) which is color.white, red
(1), green (1),
blue (1), and
up (0,1,0).
As with cylinders, up has a subtle effect
on the 3D appearance of a sphere.
The axis attribute only affects the orientation of the sphere and has a
subtle effect on appearance; the magnitude of the axis attribute is irrelevant.
Additional sphere attributes:
radius Radius of the
sphere, default = 1
Note that the pos attribute
for cylinder, arrow, cone, and pyramid corresponds to one end of the object,
whereas for a sphere it corresponds to the center of the object.
Originally there was a label attribute for the sphere object,
but this has been superceded by the label object.
Here is an example of how to make a sphere: