Spherical
@Serializable
Spherical coordinate. The poles (phi) are at the positive and negative y-axis. The equator starts at positive z.
Parameters
theta
the counterclockwise angle from the z-axis at which a point in the xz-plane lies.
phi
the angle measured from the y-axis. The north-pole is at 0 degrees, the south-pole is at 180 degrees.
radius
the radius of the sphere