Spherical Geometry Swift

Library for moving things around on a sphere. There are three important classes here:

• Calculator - This is a calculator for common movement and distance calculations
• SphericalPosition - This is an object for representing a position on a sphere
• CartesianRelator - This is an object for mapping spherical position back to x,y,z coordinates.

Some References:

• Maths explanations
• Reference Implementation based on some Google Work spherical-geometry-js