Shear.from_angle_direction_plane

classmethod Shear.from_angle_direction_plane(angle, direction, plane)

Construct a shear transformation from an angle, direction and plane.

Parameters

  • angle (float) – The angle in radians.

  • direction ([float, float, float] | Vector) – The direction vector as list of 3 numbers. It must be orthogonal to the normal vector (i.e. it must lie in the shear plane).

  • plane ([point, vector] | Plane) – The shear plane defined by a point and normal.

Returns

Shear – The shear transformation object.

Raises

ValueError – If the shear direction does not lie in the shear plane.

Examples

>>> from compas.geometry import cross_vectors
>>> angle = 0.1
>>> direction = [0.1, 0.2, 0.3]
>>> point = [4, 3, 1]
>>> normal = cross_vectors(direction, [1, 0.3, -0.1])
>>> S = Shear.from_angle_direction_plane(angle, direction, (point, normal))