---

QSProjection2D Class Reference

Implementation of QSProjection for use in QSAxes2D. More...

#include <qsprojection2d.h>

Inheritance diagram for QSProjection2D:

[legend]List of all members.

Public Types
typedef double	Matrix [3][3]
Public Methods
	QSProjection2D ()
virtual	~QSProjection2D ()
double	world2DToCanvasX (double x) const
double	world2DToCanvasY (double y) const
double	world2DToCanvasZ (double z) const
double	canvasXToWorld2D (double x) const
double	canvasYToWorld2D (double y) const
double	canvasZToWorld2D (double z) const
virtual QSPt2f	world2DToCanvas (const QSPt2f &p) const
virtual QSPt3f	world2DToCanvas3 (const QSPt2f &p) const
virtual QSPt2f	world3DToCanvas (const QSPt3f &p) const
virtual QSPt3f	world3DToCanvas3 (const QSPt3f &p) const
virtual QSPt3f	canvas3ToWorld3D (const QSPt3f &p) const
virtual QSPt2f	worldTransformation (const Matrix m, const QSPt2f &p) const
void	setClipRect (double x1, double y1, double x2, double y2)
void	getClipRect (double *x1, double *y1, double *x2, double *y2) const
Static Public Methods
void	matrixI (Matrix m)
void	multiply (Matrix A, Matrix B)
void	copy (Matrix dst, const Matrix src)
void	applyT (Matrix m, double dx, double dy)
void	applyS (Matrix m, double sx, double sy)
void	inv (Matrix result, const Matrix m)
void	applyViewport (Matrix m, double x, double y, double w, double h)
Public Attributes
Matrix	T
Matrix	IT

---

Detailed Description

Implementation of QSProjection for use in QSAxes2D.

Author:

Kamil Dobkowski

---

Constructor & Destructor Documentation

QSProjection2D::QSProjection2D (    )

constructor.

virtual QSProjection2D::~QSProjection2D (    )  [virtual]

destructor.

---

Member Function Documentation

void QSProjection2D::applyS (  Matrix    m, double    sx, double    sy )  [static]

Apply scaling.

void QSProjection2D::applyT (  Matrix    m, double    dx, double    dy )  [static]

Apply shift ( translate ).

void QSProjection2D::applyViewport (  Matrix    m, double    x, double    y, double    w, double    h )  [static]

Apply viewport transformation.

virtual QSPt3f QSProjection2D::canvas3ToWorld3D (  const QSPt3f &    p )  const [virtual]

Reimplemented. Implements QSProjection.

double QSProjection2D::canvasXToWorld2D (  double    x )  const

Maps the X from screen coordinates

double QSProjection2D::canvasYToWorld2D (  double    y )  const

Maps the Z from screen coordinates

double QSProjection2D::canvasZToWorld2D (  double    z )  const

Maps the Z from screen coordinates

void QSProjection2D::copy (  Matrix    dst, const Matrix    src )  [static]

Copies the given matrix : 'dst = src' .

void QSProjection2D::inv (  Matrix    result, const Matrix    m )  [static]

Calculates inversion of 'm'.

void QSProjection2D::matrixI (  Matrix    m )  [static]

Makes 'matrix' a unity matrix.

void QSProjection2D::multiply (  Matrix    A, Matrix    B )  [static]

Matrix multiplication : 'A = B*A'

virtual QSPt2f QSProjection2D::world2DToCanvas (  const QSPt2f &    p )  const [virtual]

Reimplemented. Maps the point to the screen coordinates. Implements QSProjection.

virtual QSPt3f QSProjection2D::world2DToCanvas3 (  const QSPt2f &    p )  const [virtual]

Reimplemented. Maps the point to the screen coordinates. Implements QSProjection.

double QSProjection2D::world2DToCanvasX (  double    x )  const

Maps the X to the screen coordinates.

double QSProjection2D::world2DToCanvasY (  double    y )  const

Maps the Y to the screen coordinates.

double QSProjection2D::world2DToCanvasZ (  double    z )  const

Maps the Z to the screen coordinates.

virtual QSPt2f QSProjection2D::world3DToCanvas (  const QSPt3f &    p )  const [virtual]

Reimplemented. Maps the point to the screen coordinates. Implements QSProjection.

virtual QSPt3f QSProjection2D::world3DToCanvas3 (  const QSPt3f &    p )  const [virtual]

Reimplemented. Maps the point to the screen coordinates. Implements QSProjection.

virtual QSPt2f QSProjection2D::worldTransformation (  const Matrix    m, const QSPt2f &    p )  const [virtual]

Reimplemented. Applies transformation 'm' to 'p'.

---

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

• qsprojection2d.h

---