angle

spherical_geometry.great_circle_arc.angle(A, B, C)[source]

Returns the angle at B between AB and BC.

Parameters:
A, B, C(x, y, z) triples or Nx3 arrays of triples

Points on sphere.

Returns:
anglefloat or array of floats

The angle at B between AB and BC, in range 0 to 2π.

References

[1]

Miller, Robert D. Computing the area of a spherical polygon. Graphics Gems IV. 1994. Academic Press.