osgGA::TrackballManipulator Class Reference

Inheritance diagram for osgGA::TrackballManipulator:

osgGA::MatrixManipulator osgGA::GUIEventHandler osg::NodeCallback osg::Drawable::EventCallback osg::Object osg::Object osg::Referenced osg::Referenced List of all members.

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::NodegetNode () const
virtual osg::NodegetNode ()
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::Vec3dgetCenter () const
void setRotation (const osg::Quat &rotation)
const osg::QuatgetRotation () 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.

float osgGA::TrackballManipulator::tb_project_to_sphere float  r,
float  x,
float  y
[protected]
 

void osgGA::TrackballManipulator::trackball osg::Vec3 axis,
float &  angle,
float  p1x,
float  p1y,
float  p2x,
float  p2y
[protected]
 


Member Data Documentation

osg::Vec3d osgGA::TrackballManipulator::_center [protected]
 

double osgGA::TrackballManipulator::_distance [protected]
 

osg::ref_ptr<const GUIEventAdapter> osgGA::TrackballManipulator::_ga_t0 [protected]
 

osg::ref_ptr<const GUIEventAdapter> osgGA::TrackballManipulator::_ga_t1 [protected]
 

double osgGA::TrackballManipulator::_minimumZoomScale [protected]
 

double osgGA::TrackballManipulator::_modelScale [protected]
 

osg::ref_ptr<osg::Node> osgGA::TrackballManipulator::_node [protected]
 

osg::Quat osgGA::TrackballManipulator::_rotation [protected]
 

bool osgGA::TrackballManipulator::_thrown [protected]
 

float osgGA::TrackballManipulator::_trackballSize [protected]
 


The documentation for this class was generated from the following file:
Generated on Wed Nov 29 06:29:47 2006 for OpenSceneGraph by  doxygen 1.4.6