spin::ViewerManipulator Class Reference

This class provides camera control and picking for viewers that render a SPIN scene. More...

#include <ViewerManipulator.h>

List of all members.

Public Member Functions
void	setPicker (bool b)
void	setMover (bool b)
void	setRaw (bool b)
bool	handle (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa)
void	handleKeypress (const osgGA::GUIEventAdapter &ea)
void	handleMouse (osgViewer::View *view, const osgGA::GUIEventAdapter &ea)
Protected Attributes
std::string	userID
std::vector< GroupNode * >	selectedNodes
bool	picker
bool	mover
bool	raw
float	lastX
float	lastY
float	clickX
float	clickY
bool	manipulatorKey
osg::Vec3	lastHitPoint

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Detailed Description

This class provides camera control and picking for viewers that render a SPIN scene.

We override the osgGA::NodeTrackerManipulator class so that our camera can follow any node (ie, the UserNode for the viewer). However, mouse events are handled differently. Instead of directly affecting the state of the viewer's graph, we send the events to the server, which will update the UserNode and the changes will be updated on ALL machines.

Additionally, picking of interactive nodes is supported, allowing the viewer to manipulate content of a SPIN scene using the mouse.

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Member Function Documentation

bool spin::ViewerManipulator::handle	(	const osgGA::GUIEventAdapter &	ea,
		osgGA::GUIActionAdapter &	aa
	)

if the userNode's nodepath has changed, we must call setTrackNode again to force NodeTrackerManipulator to store the proper nodePath

void spin::ViewerManipulator::handleKeypress

(

const osgGA::GUIEventAdapter &

ea

)

Handles keyboard input.

void spin::ViewerManipulator::handleMouse	(	osgViewer::View *	view,
		const osgGA::GUIEventAdapter &	ea
	)

Handles mouse interaction with the scene. Includes camera navigation, picking interactive nodes and manipulating nodes with manipulator handles.

void spin::ViewerManipulator::setMover

(

bool

b

)

Enables or disables the use of camera motion controls.

void spin::ViewerManipulator::setPicker

(

bool

b

)

Enables or disables use of the mouse to pick nodes.

void spin::ViewerManipulator::setRaw

(

bool

b

)

Enables or disables raw mouse events. TO_BE_VERIFIED

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

• include/ViewerManipulator.h
• src/spin/ViewerManipulator.cpp
• src/spin/ViewerManipulator.orbitTest.cpp