omni::visual::PerspectiveCamera Class Reference

A perspective camera. More...

#include <PerspectiveCamera.h>

Inheritance diagram for omni::visual::PerspectiveCamera:

Collaboration diagram for omni::visual::PerspectiveCamera:

Public Member Functions
	PerspectiveCamera (qreal _fov=30.0)
	PerspectiveCamera (const Tracker &_tracker, qreal _fov=30.0, qreal _near=0.1, qreal _far=1000.0, const QVector3D &_up=QVector3D(0.0, 0.0, 1.0))
void	setup (qreal _aspect) const
	Setup perspective camera in OpenGL. More...
qreal	fov () const
	Return field of view value. More...
void	setFov (qreal _fov)
	Set new field of view value. More...
void	fromStream (QDataStream &)
	Deserialize from stream. More...
void	toStream (QDataStream &) const
	Serialize to stream. More...
Public Member Functions inherited from omni::visual::CameraInterface
	CameraInterface ()
	CameraInterface (const Tracker &_tracker, qreal _near=0.1, qreal _far=1000.0, const QVector3D &_up=QVector3D(0.0, 0.0, 1.0))
QVector3D	right () const
	Right vector. More...
void	strafe (qreal _right)
	Move camera to the right (or to the left if value is negative) More...
void	lift (qreal _up)
	Move camera upwards (or downwards if value is negative) More...
QVector3D	up () const
	Camera orientation. More...
void	setUp (QVector3D const &)
qreal	near () const
	Camera's near plane. More...
void	setNear (qreal)
qreal	far () const
	Camera's far plane. More...
void	setFar (qreal)
Public Member Functions inherited from omni::visual::Tracker
	Tracker ()
	Tracker (const QVector3D &_center, const PolarVec &_direction)
void	track (float _longitude, float _latitude, float _radius)
QVector3D	eye () const
	get tracker position More...
void	setEye (const QVector3D &_pos)
	Set eye position. More...
void	setCenter (QVector3D const &)
	Set center position. More...
QVector3D &	center ()
	Return center position. More...
QVector3D const &	center () const
	Return center position (const version) More...
void	setDirection (PolarVec const &)
	Set direction from polar vector. More...
void	setDistance (float _t)
	Set direction with a certain distance. More...
PolarVec &	direction ()
	Return direction as polar vector. More...
PolarVec const &	direction () const
	Return direction as polar vector (const version) More...
void	limitDistance (float _minDist, float _maxDist)
	Keep distance in limits. More...

Private Attributes
qreal	fov_ = 30.0
	Field of View Angle. More...

Friends
bool	operator== (PerspectiveCamera const &, PerspectiveCamera const &)
	Test for equality. ScreenSetup is ignored. More...

Detailed Description

A perspective camera.

Constructor & Destructor Documentation

omni::visual::PerspectiveCamera::PerspectiveCamera

(

qreal

_fov = 30.0

)

                                                   :
      fov_(_fov) {
    }

omni::visual::PerspectiveCamera::PerspectiveCamera	(	const Tracker &	_tracker,
		qreal	_fov = 30.0,
		qreal	_near = 0.1,
		qreal	_far = 1000.0,
		const QVector3D &	_up = QVector3D(0.0, 0.0, 1.0)
	)

                                         :
      CameraInterface(_tracker,_near,_far,_up),
      fov_(_fov)
    {

    }

Member Function Documentation

qreal omni::visual::PerspectiveCamera::fov ( ) const

virtual

Return field of view value.

Reimplemented from omni::visual::CameraInterface.

                                       {
      return fov_;
    }

void omni::visual::PerspectiveCamera::fromStream ( QDataStream &  _is )

virtual

Deserialize from stream.

Reimplemented from omni::visual::CameraInterface.

                                                       {
      CameraInterface::fromStream(_is);
      _is >> fov_;
    }

void omni::visual::PerspectiveCamera::setFov ( qreal  _fov )

virtual

Set new field of view value.

Reimplemented from omni::visual::CameraInterface.

                                             {
      fov_ = _fov;
    }

void omni::visual::PerspectiveCamera::setup ( qreal  _aspect ) const

virtual

Setup perspective camera in OpenGL.

Implements omni::visual::CameraInterface.

    {
      QMatrix4x4 _m;
      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();

      // perspective projection
      _m.perspective(fov_, _aspect, near(), far());

      _m.lookAt(eye(), center(), up());

      // Apply matrix to OpenGL
      glMultMatrixf(_m.constData());
    }

void omni::visual::PerspectiveCamera::toStream ( QDataStream &  _os ) const

virtual

Serialize to stream.

Reimplemented from omni::visual::CameraInterface.

                                                           {
      CameraInterface::toStream(_os);
      _os << fov_;
    }

Friends And Related Function Documentation

bool operator== ( PerspectiveCamera const &  _lhs, PerspectiveCamera const &  _rhs  )

friend

Test for equality. ScreenSetup is ignored.

                                                                                  {
      return
        (static_cast<CameraInterface const&>(_lhs) == static_cast<CameraInterface const&>(_rhs)) &&
        OMNI_TEST_MEMBER_EQUAL(fov_);
    }

Field Documentation

qreal omni::visual::PerspectiveCamera::fov_ = 30.0

private

Field of View Angle.

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

• include/omni/visual/PerspectiveCamera.h
• src/lib/visual/PerspectiveCamera.cpp