unreal.Matrix

class unreal.Matrix(x_plane: Plane = Ellipsis, y_plane: Plane = Ellipsis, z_plane: Plane = Ellipsis, w_plane: Plane = Ellipsis)

Bases: StructBase

A 4x4 matrix. note: The full C++ class is located here: EngineSourceRuntimeCorePublicMathMatrix.h

C++ Source:

• Module: CoreUObject

• File: NoExportTypes.h

Editor Properties: (see get_editor_property/set_editor_property)

• w_plane (Plane): [Read-Write]

• x_plane (Plane): [Read-Write]

• y_plane (Plane): [Read-Write]

• z_plane (Plane): [Read-Write]

IDENTITY: Matrix

Identity matrix

Type:

(Matrix)

__add__(other: Matrix) → None

Overloads:

• Matrix Gets the result of adding a matrix to this.

  @param Other The Matrix to add. @return The result of addition.

__eq__(other: object) → bool

Overloads:

• Matrix Checks whether another Matrix is equal to this, within specified tolerance.

  @param Other The other Matrix. @param Tolerance Error Tolerance. @return true if two Matrix are equal, within specified tolerance, otherwise false.

__iadd__(other: Matrix) → None

Overloads:

• Matrix Gets the result of adding a matrix to this.

  @param Other The Matrix to add. @return The result of addition.

__imul__(other: Matrix) → None

Overloads:

• Matrix Gets the result of multiplying a Matrix to this.

  @param Other The matrix to multiply this by. @return The result of multiplication.

• double Multiplies all values of the matrix by a float. If your Matrix represents a Transform that you wish to scale you should use Apply Scale instead

__mul__(other: Matrix) → None

Overloads:

• Matrix Gets the result of multiplying a Matrix to this.

  @param Other The matrix to multiply this by. @return The result of multiplication.

• double Multiplies all values of the matrix by a float. If your Matrix represents a Transform that you wish to scale you should use Apply Scale instead

__ne__(other: object) → bool

Overloads:

• Matrix Checks whether another Matrix is not equal to this, within specified tolerance.

  @param Other The other Matrix. @return true if two Matrix are not equal, within specified tolerance, otherwise false.

add(b) → Matrix

Gets the result of adding a matrix to this.

Parameters:

b (Matrix)

Returns:

The result of addition.

Return type:

Matrix

apply_scale(scale) → Matrix

Apply Scale to this matrix (Assumes Matrix represents a transform)

Parameters:

scale (float)

Return type:

Matrix

concatenate_translation(translation) → Matrix

Returns a matrix with an additional translation concatenated. (Assumes Matrix represents a transform)

Parameters:

translation (Vector)

Return type:

Matrix

contains_na_n() → bool

Returns true if any element of this matrix is NaN

Return type:

bool

equals(b, tolerance=0.000100) → bool

Checks whether another Matrix is equal to this, within specified tolerance.

Parameters:

• b (Matrix)

• tolerance (float) – Error Tolerance.

Returns:

true if two Matrix are equal, within specified tolerance, otherwise false.

Return type:

bool

get_column(column) → Vector

get a column of this matrix

Parameters:

column (MatrixColumns)

Returns:

vector of the column

Return type:

Vector

get_determinant() → float

Returns:

determinant of this matrix.

Return type:

float

get_frustum_bottom_plane() → Plane or None

Get the bottom plane of the Frustum of this matrix (Assumes Matrix represents a View Projection Matrix)

Returns:

out_plane (Plane): the bottom plane of the Frustum of this matrix

Return type:

Plane or None

get_frustum_far_plane() → Plane or None

Get the far plane of the Frustum of this matrix (Assumes Matrix represents a View Projection Matrix)

Returns:

out_plane (Plane): the far plane of the Frustum of this matrix

Return type:

Plane or None

get_frustum_left_plane() → Plane or None

Get the left plane of the Frustum of this matrix (Assumes Matrix represents a View Projection Matrix)

Returns:

out_plane (Plane): the left plane of the Frustum of this matrix

Return type:

Plane or None

get_frustum_near_plane() → Plane or None

Get the near plane of the Frustum of this matrix (Assumes Matrix represents a View Projection Matrix)

Returns:

out_plane (Plane): the near plane of the Frustum of this matrix

Return type:

Plane or None

get_frustum_right_plane() → Plane or None

Get the right plane of the Frustum of this matrix (Assumes Matrix represents a View Projection Matrix)

Returns:

out_plane (Plane): the right plane of the Frustum of this matrix

Return type:

Plane or None

get_frustum_top_plane() → Plane or None

Get the top plane of the Frustum of this matrix (Assumes Matrix represents a View Projection Matrix)

Returns:

out_plane (Plane): the top plane of the Frustum of this matrix

Return type:

Plane or None

get_inverse() → Matrix

Get the inverse of the Matrix. Handles nil matrices.

Return type:

Matrix

get_matrix_without_scale(tolerance=0.000000) → Matrix

Returns matrix after RemoveScaling with error Tolerance (Assumes Matrix represents a transform)

Parameters:

tolerance (float)

Return type:

Matrix

get_maximum_axis_scale() → float

Returns:

the maximum magnitude of any row of the matrix. (Assumes Matrix represents a transform)

Return type:

float

get_origin() → Vector

Get the origin of the co-ordinate system (Assumes Matrix represents a transform)

Returns:

co-ordinate system origin

Return type:

Vector

get_rot_determinant() → float

Returns:

the determinant of rotation 3x3 matrix (Assumes Top Left 3x3 Submatrix represents a Rotation)

Return type:

float

get_rotator() → Rotator

Get the rotator representation of this matrix (Assumes Matrix represents a transform)

Returns:

rotator representation of this matrix

Return type:

Rotator

get_scale_vector(tolerance=0.000000) → Vector

return a 3D scale vector calculated from this matrix (where each component is the magnitude of a row vector) with error Tolerance. (Assumes Matrix represents a transform)

Parameters:

tolerance (float)

Return type:

Vector

get_scaled_axes() -> (x=Vector, y=Vector, z=Vector)

get axes of this matrix scaled by the scale of the matrix (Assumes Matrix represents a transform)

Returns:

x (Vector): axes returned to this param

y (Vector): axes returned to this param

z (Vector): axes returned to this param

Return type:

tuple

get_scaled_axis(axis) → Vector

get axis of this matrix scaled by the scale of the matrix (Assumes Matrix represents a transform)

Parameters:

axis (AxisType)

Returns:

vector of the axis

Return type:

Vector

get_transpose_adjoint() → Matrix

Get the Transose Adjoint of the Matrix.

Return type:

Matrix

get_transposed() → Matrix

Transpose.

Return type:

Matrix

get_unit_axes() -> (x=Vector, y=Vector, z=Vector)

get unit length axes of this matrix (Assumes Matrix represents a transform)

Returns:

x (Vector): axes returned to this param

y (Vector): axes returned to this param

z (Vector): axes returned to this param

Return type:

tuple

get_unit_axis(axis) → Vector

get unit length axis of this matrix (Assumes Matrix represents a transform)

Parameters:

axis (AxisType)

Returns:

vector of the axis

Return type:

Vector

inverse_transform_position(v) → Vector

Inverts the matrix and then transforms V - correctly handles scaling in this matrix. (Assumes Matrix represents a transform)

Parameters:

v (Vector)

Return type:

Vector

inverse_transform_vector(v) → Vector

Transform a direction vector by the inverse of this matrix - will not take into account translation part. If you want to transform a surface normal (or plane) and correctly account for non-uniform scaling you should use TransformByUsingAdjointT with adjoint of matrix inverse. (Assumes Matrix represents a transform)

Parameters:

v (Vector)

Return type:

Vector

mirror(mirror_axis, flip_axis) → Matrix

Utility for mirroring this transform across a certain plane, and flipping one of the axis as well. (Assumes Matrix represents a transform)

Parameters:

• mirror_axis (AxisType)

• flip_axis (AxisType)

Return type:

Matrix

multiply(b) → Matrix

Gets the result of multiplying a Matrix to this.

Parameters:

b (Matrix)

Returns:

The result of multiplication.

Return type:

Matrix

multiply_float(b) → Matrix

Multiplies all values of the matrix by a float. If your Matrix represents a Transform that you wish to scale you should use Apply Scale instead

Parameters:

b (double)

Return type:

Matrix

not_equal(b, tolerance=0.000100) → bool

Checks whether another Matrix is not equal to this, within specified tolerance.

Parameters:

• b (Matrix)

• tolerance (float)

Returns:

true if two Matrix are not equal, within specified tolerance, otherwise false.

Return type:

bool

remove_scaling(tolerance=0.000000) → None

Remove any scaling from this matrix (ie magnitude of each row is 1) with error Tolerance (Assumes Matrix represents a transform)

Parameters:

tolerance (float)

remove_translation() → Matrix

Remove any translation from this matrix (Assumes Matrix represents a transform)

Return type:

Matrix

rotator() → Rotator

Converts a Matrix to a Rotator (Assumes Matrix represents a transform)

Return type:

Rotator

scale_translation(scale3d) → Matrix

Scale the translation part of the matrix by the supplied vector. (Assumes Matrix represents a transform)

Parameters:

scale3d (Vector)

Return type:

Matrix

set_axis(axis, axis_vector) → None

set an axis of this matrix (Assumes Matrix represents a transform)

Parameters:

• axis (AxisType) – vector of the axis

• axis_vector (Vector)

set_column(column, value) → None

Matrix Set Column

Parameters:

• column (MatrixColumns)

• value (Vector)

set_origin(new_origin) → None

Set the origin of the coordinate system to the given vector (Assumes Matrix represents a transform)

Parameters:

new_origin (Vector)

to_quat() → Quat

Transform a rotation matrix into a quaternion. (Assumes Matrix represents a transform) warning: rotation part will need to be unit length for this to be right!

Return type:

Quat

transform() → Transform

Converts a Matrix to a Transform (Assumes Matrix represents a transform)

Return type:

Transform

transform_position(v) → Vector4

Transform a location - will take into account translation part of the FMatrix. (Assumes Matrix represents a transform)

Parameters:

v (Vector)

Return type:

Vector4

transform_vector(v) → Vector4

Transform a direction vector - will not take into account translation part of the FMatrix. If you want to transform a surface normal (or plane) and correctly account for non-uniform scaling you should use TransformByUsingAdjointT. (Assumes Matrix represents a transform)

Parameters:

v (Vector)

Return type:

Vector4

transform_vector4(v) → Vector4

Transform a vector by the matrix. (Assumes Matrix represents a transform)

Parameters:

v (Vector4)

Return type:

Vector4

property w_plane: Plane

[Read-Write]

Type:

(Plane)

property x_plane: Plane

[Read-Write]

Type:

(Plane)

property y_plane: Plane

[Read-Write]

Type:

(Plane)

property z_plane: Plane

[Read-Write]

Type:

(Plane)