osgGA::TrackballManipulator Class Reference

Inheritance diagram for osgGA::TrackballManipulator:


Public Member Functions
	TrackballManipulator ()
virtual const char *	className () const
virtual void	setByMatrix (const osg::Matrixd &matrix)
virtual void	setByInverseMatrix (const osg::Matrixd &matrix)
virtual osg::Matrixd	getMatrix () const
virtual osg::Matrixd	getInverseMatrix () const
virtual osgUtil::SceneView::FusionDistanceMode	getFusionDistanceMode () const
virtual float	getFusionDistanceValue () const
virtual void	setNode (osg::Node *)
virtual const osg::Node *	getNode () const
virtual osg::Node *	getNode ()
virtual void	home (const GUIEventAdapter &ea, GUIActionAdapter &us)
virtual void	home (double)
virtual void	init (const GUIEventAdapter &ea, GUIActionAdapter &us)
virtual bool	handle (const GUIEventAdapter &ea, GUIActionAdapter &us)
virtual void	getUsage (osg::ApplicationUsage &usage) const
void	setMinimumZoomScale (double minimumZoomScale)
double	getMinimumZoomScale () const
void	setCenter (const osg::Vec3d &center)
const osg::Vec3d &	getCenter () const
void	setRotation (const osg::Quat &rotation)
const osg::Quat &	getRotation () const
void	setDistance (double distance)
double	getDistance () const
void	setTrackballSize (float size)
float	getTrackballSize () const
Protected Member Functions
virtual	~TrackballManipulator ()
void	flushMouseEventStack ()
void	addMouseEvent (const GUIEventAdapter &ea)
void	computePosition (const osg::Vec3 &eye, const osg::Vec3 &lv, const osg::Vec3 &up)
bool	calcMovement ()
void	trackball (osg::Vec3 &axis, float &angle, float p1x, float p1y, float p2x, float p2y)
float	tb_project_to_sphere (float r, float x, float y)
bool	isMouseMoving ()
Protected Attributes
osg::ref_ptr< const GUIEventAdapter >	_ga_t1
osg::ref_ptr< const GUIEventAdapter >	_ga_t0
osg::ref_ptr< osg::Node >	_node
double	_modelScale
double	_minimumZoomScale
bool	_thrown
osg::Vec3d	_center
osg::Quat	_rotation
double	_distance
float	_trackballSize

Constructor & Destructor Documentation

osgGA::TrackballManipulator::TrackballManipulator ( )

virtual osgGA::TrackballManipulator::~TrackballManipulator ( ) [protected, virtual]

Member Function Documentation

void osgGA::TrackballManipulator::addMouseEvent ( const GUIEventAdapter & ea ) [protected]

Add the current mouse GUIEvent to internal stack.

bool osgGA::TrackballManipulator::calcMovement ( ) [protected]

For the give mouse movement calculate the movement of the camera. Return true is camera has moved and a redraw is required.

virtual const char* osgGA::TrackballManipulator::className ( ) const [inline, virtual]

return the name of the object's class type. Must be defined by derived classes.

Reimplemented from osgGA::MatrixManipulator.

void osgGA::TrackballManipulator::computePosition	(	const osg::Vec3 &	eye,
		const osg::Vec3 &	lv,
		const osg::Vec3 &	up
	)			`[protected]`

void osgGA::TrackballManipulator::flushMouseEventStack ( ) [protected]

Reset the internal GUIEvent stack.

const osg::Vec3d& osgGA::TrackballManipulator::getCenter ( ) const [inline]

Get the center of the trackball.

double osgGA::TrackballManipulator::getDistance ( ) const [inline]

Get the distance of the trackball.

virtual osgUtil::SceneView::FusionDistanceMode osgGA::TrackballManipulator::getFusionDistanceMode ( ) const [inline, virtual]

Get the FusionDistanceMode. Used by SceneView for setting up setereo convergence.

Reimplemented from osgGA::MatrixManipulator.

virtual float osgGA::TrackballManipulator::getFusionDistanceValue ( ) const [inline, virtual]

Get the FusionDistanceValue. Used by SceneView for setting up setereo convergence.

Reimplemented from osgGA::MatrixManipulator.

virtual osg::Matrixd osgGA::TrackballManipulator::getInverseMatrix ( ) const [virtual]

get the position of the manipulator as a inverse matrix of the manipulator, typically used as a model view matrix.

Implements osgGA::MatrixManipulator.

virtual osg::Matrixd osgGA::TrackballManipulator::getMatrix ( ) const [virtual]

get the position of the manipulator as 4x4 Matrix.

Implements osgGA::MatrixManipulator.

double osgGA::TrackballManipulator::getMinimumZoomScale ( ) const [inline]

get the minimum distance (as ratio) the eye point can be zoomed in

virtual osg::Node* osgGA::TrackballManipulator::getNode ( ) [virtual]

Return node if attached.

Reimplemented from osgGA::MatrixManipulator.

virtual const osg::Node* osgGA::TrackballManipulator::getNode ( ) const [virtual]

Return node if attached.

Reimplemented from osgGA::MatrixManipulator.

const osg::Quat& osgGA::TrackballManipulator::getRotation ( ) const [inline]

Get the rotation of the trackball.

float osgGA::TrackballManipulator::getTrackballSize ( ) const [inline]

Get the size of the trackball.

virtual void osgGA::TrackballManipulator::getUsage ( osg::ApplicationUsage & usage ) const [virtual]

Get the keyboard and mouse usage of this manipulator.

Reimplemented from osgGA::GUIEventHandler.

virtual bool osgGA::TrackballManipulator::handle	(	const GUIEventAdapter &	ea,
		GUIActionAdapter &	us
	)			`[virtual]`

handle events, return true if handled, false otherwise.

Reimplemented from osgGA::MatrixManipulator.

virtual void osgGA::TrackballManipulator::home ( double ) [virtual]

Move the camera to the default position. This version does not require GUIEventAdapter and GUIActionAdapter so may be called from somewhere other than a handle() method in GUIEventHandler. Application must be aware of implications.

Reimplemented from osgGA::MatrixManipulator.

virtual void osgGA::TrackballManipulator::home	(	const GUIEventAdapter &	ea,
		GUIActionAdapter &	us
	)			`[virtual]`

Move the camera to the default position. May be ignored by manipulators if home functionality is not appropriate.

Reimplemented from osgGA::MatrixManipulator.

virtual void osgGA::TrackballManipulator::init	(	const GUIEventAdapter &	ea,
		GUIActionAdapter &	us
	)			`[virtual]`

Start/restart the manipulator.

Reimplemented from osgGA::MatrixManipulator.

bool osgGA::TrackballManipulator::isMouseMoving ( ) [protected]

Check the speed at which the mouse is moving. If speed is below a threshold then return false, otherwise return true.

virtual void osgGA::TrackballManipulator::setByInverseMatrix ( const osg::Matrixd & matrix ) [inline, virtual]

set the position of the matrix manipulator using a 4x4 Matrix.

Implements osgGA::MatrixManipulator.

virtual void osgGA::TrackballManipulator::setByMatrix ( const osg::Matrixd & matrix ) [virtual]

set the position of the matrix manipulator using a 4x4 Matrix.

Implements osgGA::MatrixManipulator.

void osgGA::TrackballManipulator::setCenter ( const osg::Vec3d & center ) [inline]

Set the center of the trackball.

void osgGA::TrackballManipulator::setDistance ( double distance ) [inline]

Set the distance of the trackball.

void osgGA::TrackballManipulator::setMinimumZoomScale ( double minimumZoomScale ) [inline]

set the minimum distance (as ratio) the eye point can be zoomed in towards the center before the center is pushed forward.

virtual void osgGA::TrackballManipulator::setNode ( osg::Node * ) [virtual]

Attach a node to the manipulator. Automatically detaches previously attached node. setNode(NULL) detaches previously nodes. Is ignored by manipulators which do not require a reference model.

Reimplemented from osgGA::MatrixManipulator.

void osgGA::TrackballManipulator::setRotation ( const osg::Quat & rotation ) [inline]

Set the rotation of the trackball.

void osgGA::TrackballManipulator::setTrackballSize ( float size )

Set the size of the trackball.