# Projection

class compas.geometry.Projection(matrix=None)[source]

Bases: Transformation

Class representing a projection transformation.

Parameters

matrix (list[list[float]], optional) – A 4x4 matrix (or similar) representing a projection transformation.

Raises

ValueError – If the default constructor is used, and the provided transformation matrix is not a shear matrix.

Examples

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Methods

 from_entries Constructs a perspective transformation by the perspective entries of a matrix. from_plane Construct an orthogonal projection transformation to project onto a plane. from_plane_and_direction Construct a parallel projection transformation to project onto a plane along a specific direction. from_plane_and_point Construct a perspective projection transformation to project onto a plane along lines that emanate from a single point, called the center of projection.

Inherited Methods

 concatenate Concatenate another transformation to this transformation. concatenated Concatenate two transformations into one Transformation. copy Returns a copy of the transformation. decomposed Decompose the Transformation into its components. from_change_of_basis Construct a change of basis transformation between two frames. from_data Construct an object of this type from the provided data. from_euler_angles Construct a transformation from a rotation represented by Euler angles. from_frame Construct a transformation from world XY to frame. from_frame_to_frame Construct a transformation between two frames. from_json Construct an object from serialized data contained in a JSON file. from_jsonstring Construct an object from serialized data contained in a JSON string. from_list Creates a transformation from a list of 16 numbers. from_matrix Creates a transformation from a list[list[float]] object. inverse Returns the inverse transformation. invert Invert this transformation. inverted Returns the inverse transformation. to_data Convert an object to its native data representation. to_json Serialize the data representation of an object to a JSON file. to_jsonstring Serialize the data representation of an object to a JSON string. transpose Transpose the matrix of this transformation. transposed Create a transposed copy of this transformation. validate_data Validate the object's data against its data schema. validate_json Validate the object's data against its json schema.