AngleValue
This class protects from sudden loss of 2π/180 factor
from pyxmolpp2 import Degrees, Radians import numpy as np
To avoid accidental errors use of AngleValue is enforced by API.
AngleValue can be constructed via Degrees() or Radians():
a = Degrees(45) b = Radians(np.pi)
It can be casted back to float as degrees or radians:
print(a.degrees, b.radians) print(b.degrees, b.radians)
45.0 3.141592653589793 180.0 3.141592653589793
All basic arithmetic operations are supported:
print((a * 2 + b / 3).degrees)
149.99999999999997
AngleValue also has cos(), sin(), tan(), abs() methods for convenience:
print(a.cos(), a.sin(), a.tan(), a.abs().degrees)
0.7071067811865476 0.7071067811865475 0.9999999999999999 45.0
Sometimes we don't need extra periodic cycles and want our angle in range. to_standard_range() functions would help you.
print("380 to [-180..180) range:", Degrees(380).to_standard_range().degrees)
380 to [-180..180) range: 20.00000000000003