#include </home/zeitlin/src/wx/github/interface/wx/affinematrix2d.h>

Inheritance diagram for wxAffineMatrix2D:

Detailed Description

A 3x2 matrix representing an affine 2D transformation.

Library: wxCore

Since:: 2.9.2

Public Member Functions
	wxAffineMatrix2D ()
	Default constructor.
void	Get (wxMatrix2D mat2D, wxPoint2DDouble tr) const
	Get the component values of the matrix.
void	Set (const wxMatrix2D &mat2D, const wxPoint2DDouble &tr)
	Set all elements of this matrix.
void	Concat (const wxAffineMatrix2DBase &t)
	Concatenate this matrix with another one.
bool	Invert ()
	Invert this matrix.
bool	IsIdentity () const
	Check if this is the identity matrix.
bool	operator!= (const wxAffineMatrix2DBase &t) const
	Check that this matrix differs from .
void	Translate (wxDouble dx, wxDouble dy)
	Add the translation to this matrix.
void	Scale (wxDouble xScale, wxDouble yScale)
	Add scaling to this matrix.
void	Mirror (int direction=wxHORIZONTAL)
	Add mirroring to this matrix.
void	Rotate (wxDouble cRadians)
	Add clockwise rotation to this matrix.
wxPoint2DDouble	TransformPoint (const wxPoint2DDouble &p) const
	Applies this matrix to the point.
void	TransformPoint (wxDouble x, wxDouble y) const
wxPoint2DDouble	TransformDistance (const wxPoint2DDouble &p) const
	Applies the linear part of this matrix, i.e.
void	TransformDistance (wxDouble dx, wxDouble dy) const

void	IsEqual (const wxAffineMatrix2DBase &t)
	Check that this matrix is identical with .
bool	operator== (const wxAffineMatrix2DBase &t) const
	Check that this matrix is identical with .

List of all members.

Constructor & Destructor Documentation

wxAffineMatrix2D::wxAffineMatrix2D ( )

Default constructor.

The matrix elements are initialize to the identity matrix.

Member Function Documentation

void wxAffineMatrix2D::Concat ( const wxAffineMatrix2DBase & t ) [virtual]

Concatenate this matrix with another one.

The parameter matrix is the multiplicand.

Parameters:

t	The multiplicand.

        //           | t.m_11  t.m_12  0 |   | m_11  m_12   0 |
        // matrix' = | t.m_21  t.m_22  0 | x | m_21  m_22   0 |
        //           | t.m_tx  t.m_ty  1 |   | m_tx  m_ty   1 |

Implements wxAffineMatrix2DBase.

void wxAffineMatrix2D::Get	(	wxMatrix2D *	mat2D,
		wxPoint2DDouble *	tr
	)		const `[virtual]`

Get the component values of the matrix.

Parameters:

mat2D	The rotational components of the matrix (upper 2 x 2), must be non-NULL.
tr	The translational components of the matrix, may be NULL.

Implements wxAffineMatrix2DBase.

bool wxAffineMatrix2D::Invert ( ) [virtual]

Invert this matrix.

If the matrix is not invertible, i.e. if its determinant is 0, returns false and doesn't modify it.

        //           | m_11  m_12  0 |
        // Invert    | m_21  m_22  0 |
        //           | m_tx  m_ty  1 |

Implements wxAffineMatrix2DBase.

void wxAffineMatrix2D::IsEqual ( const wxAffineMatrix2DBase & t )

Check that this matrix is identical with .

Parameters:

t	The matrix compared with this.

bool wxAffineMatrix2D::IsIdentity ( ) const [virtual]

Check if this is the identity matrix.

Implements wxAffineMatrix2DBase.

void wxAffineMatrix2D::Mirror ( int direction = wxHORIZONTAL )

Add mirroring to this matrix.

Parameters:

direction The direction(s) used for mirroring. One of wxHORIZONTAL, wxVERTICAL or their combination wxBOTH.

Reimplemented from wxAffineMatrix2DBase.

bool wxAffineMatrix2D::operator!= ( const wxAffineMatrix2DBase & t ) const

Check that this matrix differs from .

Parameters:

t	The matrix compared with this.

Reimplemented from wxAffineMatrix2DBase.

bool wxAffineMatrix2D::operator== ( const wxAffineMatrix2DBase & t ) const

Check that this matrix is identical with .

Parameters:

t	The matrix compared with this.

Reimplemented from wxAffineMatrix2DBase.

void wxAffineMatrix2D::Rotate ( wxDouble cRadians ) [virtual]

Add clockwise rotation to this matrix.

Parameters:

cRadians Rotation angle in radians, clockwise.

        //           | cos    sin   0 |   | m_11  m_12   0 |
        // matrix' = | -sin   cos   0 | x | m_21  m_22   0 |
        //           |  0      0    1 |   | m_tx  m_ty   1 |

Implements wxAffineMatrix2DBase.

void wxAffineMatrix2D::Scale	(	wxDouble	xScale,
		wxDouble	yScale
	)		`[virtual]`

Add scaling to this matrix.

Parameters:

xScale	Scaling in x direction.
yScale	Scaling in y direction.

        //           | xScale   0      0 |   | m_11  m_12   0 |
        // matrix' = |   0    yScale   0 | x | m_21  m_22   0 |
        //           |   0      0      1 |   | m_tx  m_ty   1 |

Implements wxAffineMatrix2DBase.

void wxAffineMatrix2D::Set	(	const wxMatrix2D &	mat2D,
		const wxPoint2DDouble &	tr
	)		`[virtual]`

Set all elements of this matrix.

Parameters:

mat2D	The rotational components of the matrix (upper 2 x 2).
tr	The translational components of the matrix.

Implements wxAffineMatrix2DBase.

void wxAffineMatrix2D::TransformDistance	(	wxDouble *	dx,
		wxDouble *	dy
	)		const

Reimplemented from wxAffineMatrix2DBase.

wxPoint2DDouble wxAffineMatrix2D::TransformDistance ( const wxPoint2DDouble & p ) const

Applies the linear part of this matrix, i.e.

without translation.

Parameters:

p	The source receiving the transformations.

Returns:: The source with the transformations applied.

        //                                   | m_11  m_12   0 |
        // dist' = | src.m_x  src._my  0 | x | m_21  m_22   0 |
        //                                   | m_tx  m_ty   1 |

Reimplemented from wxAffineMatrix2DBase.

void wxAffineMatrix2D::TransformPoint	(	wxDouble *	x,
		wxDouble *	y
	)		const

Reimplemented from wxAffineMatrix2DBase.

wxPoint2DDouble wxAffineMatrix2D::TransformPoint ( const wxPoint2DDouble & p ) const

Applies this matrix to the point.

Parameters:

p	The point receiving the transformations.

Returns:: The point with the transformations applied.

        //                                    | m_11  m_12   0 |
        // point' = | src.m_x  src._my  1 | x | m_21  m_22   0 |
        //                                    | m_tx  m_ty   1 |

Reimplemented from wxAffineMatrix2DBase.

void wxAffineMatrix2D::Translate	(	wxDouble	dx,
		wxDouble	dy
	)		`[virtual]`

Add the translation to this matrix.

Parameters:

dx	The translation in x direction.
dy	The translation in y direction.

        //           |  1   0   0 |   | m_11  m_12   0 |
        // matrix' = |  0   1   0 | x | m_21  m_22   0 |
        //           | dx  dy   1 |   | m_tx  m_ty   1 |

Implements wxAffineMatrix2DBase.

Detailed Description

Public Member Functions

Constructor & Destructor Documentation

Member Function Documentation