IMatrix Struct Reference

Used to store transformation matrices. More...

#include <IGraphicsStructs.h>

Public Member Functions
	IMatrix (double xx, double yx, double xy, double yy, double tx, double ty)
	Create an IMatrix, specifying the values. More...
	IMatrix ()
	Create an identity matrix.
IMatrix &	Translate (float x, float y)
	Set the matrix for a translation transform. More...
IMatrix &	Scale (float x, float y)
	Set the matrix for a scale transform. More...
IMatrix &	Rotate (float a)
	Set the matrix for a rotation transform. More...
IMatrix &	Skew (float xa, float ya)
	Set the matrix for a skew transform. More...
void	TransformPoint (double &x, double &y, double x0, double y0) const
	Transforms the point x, y. More...
void	TransformPoint (double &x, double &y) const
	Transforms the point x, y with the matrix. More...
IMatrix &	Transform (const IRECT &before, const IRECT &after)
IMatrix &	Transform (const IMatrix &m)
	Transform this matrix with another. More...
IMatrix &	Invert ()
	Changes the matrix to be the inverse of its original value. More...

Public Attributes
double	mXX
double	mYX
double	mXY
double	mYY
double	mTX
double	mTY

Detailed Description

Used to store transformation matrices.

Definition at line 1996 of file IGraphicsStructs.h.

Constructor & Destructor Documentation

IMatrix::IMatrix ( double  xx, double  yx, double  xy, double  yy, double  tx, double  ty  )

inline

Create an IMatrix, specifying the values.

Parameters

xx	xx component of the affine transformation
yx	yx component of the affine transformation
xy	xy component of the affine transformation
yy	yy component of the affine transformation
tx	X translation component of the affine transformation
ty	Y translation component of the affine transformation

Definition at line 2005 of file IGraphicsStructs.h.

Member Function Documentation

IMatrix& IMatrix::Invert ( )

inline

Changes the matrix to be the inverse of its original value.

Returns

IMatrix& The changed matrix

Definition at line 2104 of file IGraphicsStructs.h.

Referenced by IGraphicsCanvas::PathFill().

IMatrix& IMatrix::Rotate ( float  a )

inline

Set the matrix for a rotation transform.

Parameters

a	The angle of rotation in degrees

Returns

IMatrix& The matrix

Definition at line 2034 of file IGraphicsStructs.h.

Referenced by IGraphics::CalculateTextRotation().

IMatrix& IMatrix::Scale ( float  x, float  y  )

inline

Set the matrix for a scale transform.

Parameters

x	The scale for x
y	The scale for y

Returns

IMatrix& The matrix

Definition at line 2026 of file IGraphicsStructs.h.

Referenced by IGraphicsCanvas::DoDrawText().

IMatrix& IMatrix::Skew ( float  xa, float  ya  )

inline

Set the matrix for a skew transform.

Parameters

xa	The angle to skew x coordinates in degrees
ya	The angle to skew y coordinates in degrees

Returns

IMatrix& The matrix

Definition at line 2047 of file IGraphicsStructs.h.

IMatrix& IMatrix::Transform ( const IRECT &  before, const IRECT &  after  )

inline

Todo:

Parameters

before

Definition at line 2075 of file IGraphicsStructs.h.

References IRECT::H(), IRECT::L, IRECT::T, and IRECT::W().

Referenced by IGraphicsCanvas::DoDrawText().

IMatrix& IMatrix::Transform ( const IMatrix &  m )

inline

Transform this matrix with another.

Parameters

m	The matrix with which to transform this one

Returns

IMatrix& The result of the transform

Definition at line 2088 of file IGraphicsStructs.h.

void IMatrix::TransformPoint ( double &  x, double &  y, double  x0, double  y0  ) const

inline

Transforms the point x, y.

Todo:

Parameters

x	The x coordinate to transform
y	The y coordinate to transform
x0

Definition at line 2057 of file IGraphicsStructs.h.

Referenced by IGraphics::CalculateTextRotation(), and IGraphicsCanvas::PathFill().

void IMatrix::TransformPoint ( double &  x, double &  y  ) const

inline

Transforms the point x, y with the matrix.

Parameters

x	The x coordinate to transform
y	The y coordinate to transform

Definition at line 2066 of file IGraphicsStructs.h.

IMatrix& IMatrix::Translate ( float  x, float  y  )

inline

Set the matrix for a translation transform.

Parameters

x	The translation for x values
y	The translation for y values

Returns

IMatrix& The matrix

Definition at line 2017 of file IGraphicsStructs.h.

Referenced by IGraphicsCanvas::DoDrawText().

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The documentation for this struct was generated from the following file:

• IGraphicsStructs.h