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QSProjection3D Class Reference

Implementation of QSProjection for use in QSAxes3D. More...

#include <qsprojection3d.h>

Inheritance diagram for QSProjection3D:

[legend]List of all members.

Public Types
typedef double	Matrix [4][4]
Public Methods
	QSProjection3D ()
virtual	~QSProjection3D ()
void	setProjection (double l, double r, double b, double t, double n, double f, bool perspective)
void	getProjection (double *l, double *r, double *b, double *t, double *n, double *f, bool *perspective) const
void	setViewport (double x, double y, double w, double h, double n=0.0, double f=0.0)
void	getViewport (double *x, double *y, double *w, double *h, double *n, double *f) const
void	fit (Matrix &S)
virtual QSPt2f	middle () const
virtual QSPt3f	furthest () const
QSPt3f	nearest () const
QSPt3f	left () const
QSPt3f	right () 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
Static Public Methods
void	matrix_to_stdout (const Matrix &m)
void	matrixI (Matrix m)
void	multiply (Matrix A, const Matrix B)
void	inv (Matrix result, const Matrix m)
void	copy (Matrix dst, const Matrix src)
void	applyT (Matrix m, double dx, double dy, double dz)
void	applyS (Matrix m, double sx, double sy, double sz)
void	applyR (Matrix m, double alfay, double alfax, double alfaz=0.0)
void	ortho (Matrix m, double l, double r, double b, double t, double n, double f)
void	frustum (Matrix m, double l, double r, double b, double t, double n, double f)
void	applyViewport (Matrix m, double x, double y, double w, double h, double n=0.0, double f=1.0)
QSPt3f	worldTransformation (const Matrix T, const QSPt3f &p)
Public Attributes
Matrix	M
Matrix	P
Matrix	T
QSPt3f	lvector
QSPt3f	dvector
QSPt3f	eye
QSPt3f	bmin
QSPt3f	bmax

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Detailed Description

Implementation of QSProjection for use in QSAxes3D.

Author:

Kamil Dobkowski

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Constructor & Destructor Documentation

QSProjection3D::QSProjection3D (    )

constructor.

virtual QSProjection3D::~QSProjection3D (    )  [virtual]

destuctor.

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Member Function Documentation

void QSProjection3D::applyR (  Matrix    m, double    alfay, double    alfax, double    alfaz = 0.0 )  [static]

Rotation.

void QSProjection3D::applyS (  Matrix    m, double    sx, double    sy, double    sz )  [static]

Scale .

void QSProjection3D::applyT (  Matrix    m, double    dx, double    dy, double    dz )  [static]

Shift ( translate ).

void QSProjection3D::applyViewport (  Matrix    m, double    x, double    y, double    w, double    h, double    n = 0.0, double    f = 1.0 )  [static]

Apply a viewport transformation.

virtual QSPt3f QSProjection3D::canvas3ToWorld3D (  const QSPt3f &    p )  const [virtual]

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

void QSProjection3D::copy (  Matrix    dst, const Matrix    src )  [static]

Copies the given matrix : 'dst = src' .

void QSProjection3D::fit (  Matrix &    S )

Fit the [(0,0,0) (1,1,1)] cube to the screen area. As result makes changes to QSProjection3D::S matrix. See also: QSProjection3D::M , QSProjection3D::P

void QSProjection3D::frustum (  Matrix    m, double    l, double    r, double    b, double    t, double    n, double    f )  [static]

Apply a perspective projection.

virtual QSPt3f QSProjection3D::furthest (    )  const [virtual]

Returns a point from [(0, 0, 0) ( 1, 1, 1 )] cube, which has the greatest z coordinate and all its three neighbourng walls are visible. See also: QSProjection3D::T Reimplemented from QSProjection.

void QSProjection3D::inv (  Matrix    result, const Matrix    m )  [static]

Calculates inversion of the given matrix.

QSPt3f QSProjection3D::left (    )  const

Returns a point which lies at the left to the QSProjection3D::furthest on the screen .

void QSProjection3D::matrixI (  Matrix    m )  [static]

Makes 'matrix' the unity matrix.

virtual QSPt2f QSProjection3D::middle (    )  const [virtual]

See also: QSProjection3D::T Reimplemented from QSProjection.

void QSProjection3D::multiply (  Matrix    A, const Matrix    B )  [static]

Matrix multiplication : 'A = B*A'

QSPt3f QSProjection3D::nearest (    )  const

Returns a point opposite to QSProjection3D::furthest .

void QSProjection3D::ortho (  Matrix    m, double    l, double    r, double    b, double    t, double    n, double    f )  [static]

Apply an othogonal projection.

QSPt3f QSProjection3D::right (    )  const

Returns an opposite point to QSProjection3D::left .

virtual QSPt2f QSProjection3D::world2DToCanvas (  const QSPt2f &    p )  const [virtual]

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

virtual QSPt3f QSProjection3D::world2DToCanvas3 (  const QSPt2f &    p )  const [virtual]

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

virtual QSPt2f QSProjection3D::world3DToCanvas (  const QSPt3f &    p )  const [virtual]

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

virtual QSPt3f QSProjection3D::world3DToCanvas3 (  const QSPt3f &    p )  const [virtual]

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

QSPt3f QSProjection3D::worldTransformation (  const Matrix    T, const QSPt3f &    p )  [static]

Applies any transformation, given in 'T' to 'p'.

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Member Data Documentation

QSPt3f QSProjection3D::bmax

Box maximum ( box + wall thickness ) in world coordinates.

QSPt3f QSProjection3D::bmin

Box minimum ( box + wall thickness ) in world coordinates.

QSPt3f QSProjection3D::dvector

The direction vector. Valid only if a perspective is off. ( world coordinates )

QSPt3f QSProjection3D::eye

Eye ( focuspoint ) position in world coordinates. Valid only if perspective is on.

QSPt3f QSProjection3D::lvector

The light vector.

Matrix QSProjection3D::M

The modelview matrix;.

Matrix QSProjection3D::P

The projection matrix.

Matrix QSProjection3D::T

The transformation matrix. t = QSProjection3D::S * QSProjection3D::P * QSProjection3D::M .

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

• qsprojection3d.h

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