angle_vectors_signed
- compas.geometry.angle_vectors_signed(u, v, normal, deg=False, tol=None)[source]
Computes the signed angle between two vectors.
It calculates the angle such that rotating vector u about the normal by angle would result in a vector that looks into the same direction as v.
- Parameters:
- u[float, float, float] |
compas.geometry.Vector XYZ components of the first vector.
- v[float, float, float] |
compas.geometry.Vector XYZ components of the second vector.
- normal[float, float, float] |
compas.geometry.Vector XYZ components of the plane’s normal spanned by u and v.
- degbool, optional
If True, returns the angle in degrees.
- tolfloat, optional
The tolerance for comparing values to zero. Default is
TOL.absolute.
- u[float, float, float] |
- Returns:
- float
The signed angle in radians (in degrees if deg == True).
Examples
>>> normal = [0.0, 0.0, 1.0] >>> angle_vectors_signed([0.0, 1.0, 0.0], [1.0, 0.0, 0.0], normal) -1.57079