Shear
- class compas.geometry.Shear(matrix=None, check=True)[source]
Bases:
compas.geometry.transformations.transformation.Transformation
Create a shear transformation.
A point P is transformed by the shear matrix into P” such that the vector P-P” is parallel to the direction vector and its extent is given by the angle of P-P’-P”, where P’ is the orthogonal projection of P onto the shear plane.
- Parameters
matrix (4x4 matrix-like, optional) – A 4x4 matrix (or similar) representing a shear transformation.
- Raises
ValueError – If the default constructor is used, and the provided transformation matrix is not a shear matrix.
Examples
>>>
Methods
concatenate
(other)Concatenate another transformation to this transformation.
concatenated
(other)Concatenate two transformations into one
Transformation
.copy
()Returns a copy of the transformation.
Decompose the
Transformation
into itsScale
,Shear
,Rotation
,Translation
andProjection
components.from_angle_direction_plane
(angle, direction, ...)- Parameters
angle (
float
) -- The angle in radians.
from_change_of_basis
(frame_from, frame_to)Computes a change of basis transformation between two frames.
from_data
(data)Creates a
Transformation
from a data dict.from_entries
(shear_entries)Creates a
Shear
from the 3 factors for x-y, x-z, and y-z axes.from_euler_angles
(euler_angles[, static, ...])Construct a transformation from a rotation represented by Euler angles.
from_frame
(frame)Computes a transformation from world XY to frame.
from_frame_to_frame
(frame_from, frame_to)Computes a transformation between two frames.
from_json
(filepath)Construct an object from serialized data contained in a JSON file.
from_jsonstring
(string)Construct an object from serialized data contained in a JSON string.
from_list
(numbers)Creates a
Transformation
from a list of 16 numbers.from_matrix
(matrix)Creates a
Transformation
from a 4x4 matrix-like object.inverse
()Returns the inverse transformation.
invert
()Invert this transformation.
inverted
()Returns the inverse transformation.
to_data
()Convert a
Transformation
object to a data dict.to_json
(filepath[, pretty])Serialize the data representation of an object to a JSON file.
to_jsonstring
([pretty])Serialize the data representation of an object to a JSON string.
Transpose the matrix of this transformation.
Create a transposed copy of this transformation.
Validate the object's data against its data schema (self.DATASCHEMA).
Validate the object's data against its json schema (self.JSONSCHEMA).