Enumeration: SystemType

• Cartesian = "Cartesian"

Cartesian system specifies each point by a pair of distances to the two fixed perpendicular oriented axes

• Polar = "Polar"

Polar system specifies each point by a distance from a reference point and an angle from a reference direction

• Ternary = "Ternary"

Ternary system specifies each point by three variables which sum to a constant