DriveManipulator is a camera manipulator which provides drive-like functionality. More...

Inheritance diagram for osgGA::DriveManipulator:

Public Member Functions
	DriveManipulator ()
virtual const char *	className () const
	return the name of the object's class type.
virtual void	setByMatrix (const osg::Matrixd &matrix)
	Get the position of the matrix manipulator using a 4x4 Matrix.
virtual void	setByInverseMatrix (const osg::Matrixd &matrix)
	Set the position of the matrix manipulator using a 4x4 Matrix.
virtual osg::Matrixd	getMatrix () const
	Get the position of the manipulator as 4x4 Matrix.
virtual osg::Matrixd	getInverseMatrix () const
	Get the position of the manipulator as a inverse matrix of the manipulator, typically used as a model view matrix.
virtual void	setNode (osg::Node *)
	Attach a node to the manipulator, automatically detaching any previously attached node.
virtual const osg::Node *	getNode () const
	Return const node if attached.
virtual osg::Node *	getNode ()
	Return node if attached.
virtual void	computeHomePosition ()
virtual void	home (const GUIEventAdapter &ea, GUIActionAdapter &us)
	Move the camera to the default position.
virtual void	init (const GUIEventAdapter &ea, GUIActionAdapter &us)
	Start/restart the manipulator.
virtual bool	handle (const GUIEventAdapter &ea, GUIActionAdapter &us)
	Handle events, return true if handled, false otherwise.
virtual void	getUsage (osg::ApplicationUsage &usage) const
	Get the keyboard and mouse usage of this manipulator.
void	setModelScale (double in_ms)
double	getModelScale () const
void	setVelocity (double in_vel)
double	getVelocity () const
void	setHeight (double in_h)
double	getHeight () const
Protected Types
enum	SpeedControlMode { USE_MOUSE_Y_FOR_SPEED, USE_MOUSE_BUTTONS_FOR_SPEED }
Protected Member Functions
virtual	~DriveManipulator ()
bool	intersect (const osg::Vec3d &start, const osg::Vec3d &end, osg::Vec3d &intersection, osg::Vec3d &normal) const
void	flushMouseEventStack ()
	Reset the internal GUIEvent stack.
void	addMouseEvent (const GUIEventAdapter &ea)
	Add the current mouse GUIEvent to internal stack.
void	computePosition (const osg::Vec3d &eye, const osg::Vec3d &lv, const osg::Vec3d &up)
bool	calcMovement ()
	For the given mouse movement calculate the movement of the camera.
Protected Attributes
osg::ref_ptr< const GUIEventAdapter >	_ga_t1
osg::ref_ptr< const GUIEventAdapter >	_ga_t0
osg::observer_ptr< osg::Node >	_node
double	_modelScale
double	_velocity
double	_height
double	_buffer
SpeedControlMode	_speedMode
osg::Vec3d	_eye
osg::Quat	_rotation
double	_pitch
double	_distance
bool	_pitchUpKeyPressed
bool	_pitchDownKeyPressed

Detailed Description

DriveManipulator is a camera manipulator which provides drive-like functionality.

By default, the left mouse button accelerates, the right mouse button decelerates, and the middle mouse button (or left and right simultaneously) stops dead.

Member Enumeration Documentation

enum osgGA::DriveManipulator::SpeedControlMode [protected]

Enumerator:

USE_MOUSE_Y_FOR_SPEED
USE_MOUSE_BUTTONS_FOR_SPEED

Constructor & Destructor Documentation

osgGA::DriveManipulator::DriveManipulator ( )

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

Member Function Documentation

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

Add the current mouse GUIEvent to internal stack.

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

For the given mouse movement calculate the movement of the camera.

Return true if camera has moved and a redraw is required.

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

return the name of the object's class type.

Must be defined by derived classes.

Reimplemented from osgGA::CameraManipulator.

virtual void osgGA::DriveManipulator::computeHomePosition ( ) [virtual]

void osgGA::DriveManipulator::computePosition	(	const osg::Vec3d &	eye,
		const osg::Vec3d &	lv,
		const osg::Vec3d &	up
	)		`[protected]`

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

Reset the internal GUIEvent stack.

double osgGA::DriveManipulator::getHeight ( ) const [inline]

virtual osg::Matrixd osgGA::DriveManipulator::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::CameraManipulator.

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

Get the position of the manipulator as 4x4 Matrix.

Implements osgGA::CameraManipulator.

double osgGA::DriveManipulator::getModelScale ( ) const [inline]

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

Return const node if attached.

Reimplemented from osgGA::CameraManipulator.

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

Return node if attached.

Reimplemented from osgGA::CameraManipulator.

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

Get the keyboard and mouse usage of this manipulator.

Reimplemented from osgGA::GUIEventHandler.

double osgGA::DriveManipulator::getVelocity ( ) const [inline]

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

Handle events, return true if handled, false otherwise.

Reimplemented from osgGA::CameraManipulator.

virtual void osgGA::DriveManipulator::home	(	const GUIEventAdapter &	,
		GUIActionAdapter &
	)		`[virtual]`

Move the camera to the default position.

May be ignored by manipulators if home functionality is not appropriate.

Reimplemented from osgGA::CameraManipulator.

virtual void osgGA::DriveManipulator::init	(	const GUIEventAdapter &	,
		GUIActionAdapter &
	)		`[virtual]`

Start/restart the manipulator.

FIXME: what does this actually mean? Provide examples.

Reimplemented from osgGA::CameraManipulator.

bool osgGA::DriveManipulator::intersect	(	const osg::Vec3d &	start,
		const osg::Vec3d &	end,
		osg::Vec3d &	intersection,
		osg::Vec3d &	normal
	)		const `[protected]`