Matrix2D Class Reference

Double precision 2x2 matrix class. More...

Inherits object.

Public Member Functions
cvb.Matrix2D	create ()
	Construct a 2x2 matrix. More...
cvb.Matrix2D	create (float a11, float a12, float a21, float a22)
cvb.Matrix2D	create (cvb.Angle rotation, float scale)
	Construct a 2x2 matrix. More...
cvb.Matrix2D	create (float scale)
	Construct a 2x2 matrix. More...
cvb.Matrix2D	create (float scale_x, float scale_y)
	Construct a 2x2 matrix. More...
cvb.Matrix2D	create (cvb.Point2D column1, cvb.Point2D column2)
	Construct a 2x2 matrix. More...
cvb.Matrix2D	create (List[float] values)
	Construct a 2x2 matrix. More...
cvb.Matrix2D	identity ()
	The identity element. More...
None	inverse (self)
	Gets the inverse of this matrix if possible. More...
None	invert (self)
	Inverts this matrix in-place if possible. More...

Properties
	a11 = property
	float: Gets or sets top left matrix element.
	a12 = property
	float: Gets or sets top right matrix element.
	a21 = property
	float: Gets or sets bottom left matrix element.
	a22 = property
	float: Gets or sets bottom right matrix element.
	det = property
	float: Matrix determinant.

Detailed Description

Double precision 2x2 matrix class.

Supports the same arguments as cvb.Matrix2D.create.

Parameters

*args : Any Parameters like cvb.Matrix2D.create.

**kwargs : Any Parameters like cvb.Matrix2D.create.

Member Function Documentation

create() [1/7]

cvb.Matrix2D create

(

)

Construct a 2x2 matrix.

Returns

cvb.Matrix2D A 2D matrix

create() [2/7]

cvb.Matrix2D create	(	cvb.Angle	rotation,
		float	scale
	)

Construct a 2x2 matrix.

Parameters

rotation : cvb.Angle Rotation angle to create the matrix for.

scale : float Scale factor to create the matrix for

Returns

cvb.Matrix2D A 2D matrix

create() [3/7]

cvb.Matrix2D create	(	cvb.Point2D	column1,
		cvb.Point2D	column2
	)

Construct a 2x2 matrix.

Parameters

column1 : cvb.Point2D Column vector one.

column2 : cvb.Point2D Columns vector two.

Returns

cvb.Matrix2D A 2D matrix

create() [4/7]

cvb.Matrix2D create	(	float	a11,
		float	a12,
		float	a21,
		float	a22
	)

Parameters

a11 : float Top left matrix element.

a12 : float Top right matrix element.

a21 : float Bottom left matrix element.

a22 : float Bottom right matrix element.

Returns

cvb.Matrix2D A 2D matrix

create() [5/7]

cvb.Matrix2D create

(

float

scale

)

Construct a 2x2 matrix.

Parameters

scale : float Scale factor to create the matrix for

Returns

cvb.Matrix2D A 2D matrix

create() [6/7]

cvb.Matrix2D create	(	float	scale_x,
		float	scale_y
	)

Construct a 2x2 matrix.

Parameters

scale_x : float Scale factor in X direction to create the matrix.

scale_y : float Scale factor in Y direction to create the matrix.

Returns

cvb.Matrix2D A 2D matrix

create() [7/7]

cvb.Matrix2D create

(

List[float]

values

)

Construct a 2x2 matrix.

Parameters

values : List[float] A list containing exactly 4 elements,

Returns

cvb.Matrix2D A 2D matrix.

identity()

cvb.Matrix2D identity

(

)

The identity element.

Returns

cvb.Matrix2D An identity matrix.

inverse()

None inverse

(

self

)

Gets the inverse of this matrix if possible.

Might cause division by zero.

invert()

None invert

(

self

)

Inverts this matrix in-place if possible.

Might cause division by zero.