CrController Class Reference

Represents controller devices which generate events. More...

#include <CrController.h>

Inheritance diagram for CrController:

List of all members.

Public Member Functions
	CrController (const short &)
	Parameterized constructor takes sensor id.
virtual	~CrController ()
	Virtual destructor.
SoEvent *	getEvent ()
	Get the CrController's current SoEvent.
void	setEvent (SoEvent *)
	Sets the current SoEvent. (UNUSED?).
void	setTool (CrTool *)
	Attaches a tool to which Events will be sent.
Protected Member Functions
virtual void	updateController ()
	Checks the device state and updates the CrController's data.
Protected Attributes
SoEvent *	m_event
	Current event object for the device state.
SbVec3f	m_position
	Current 3D controller position.
SbRotation	m_rotation
	Current 3D controller orientation stored as a quaternion.
short	m_sensorID
	Identifies the sensor.
CrTool *	m_tool
	Tool currently attached to the controller.

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Detailed Description

Represents controller devices which generate events.

Author:

Chris Scharver

Date

2004/03/11 00:35:29

Revision

1.11

The use of multiple control devices can significantly complicate interaction. The CAVELib provides a simple CAVEButtonChange() function, but it is easy to break. The Open Inventor scene graph is based on event-driver interaction. CrController is an abstract class that represents a control device. Concrete implementations must access device state information and generate the appropriate SoEvent objects. These events are passed as objects for handling within the rest of the application.

This implementation uses the Observer Pattern to notify observers that an event has taken place. Any observers must then get the controller's event and respond accordingly. A constroller may have a single CrTool object registered for directly receiving events. If multiple objects need to observe the controller, then a new observer may be needed.

See also:

CrControllerObserver, CrTool, Observer

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Constructor & Destructor Documentation

CrController::CrController (  const short &   )

Parameterized constructor takes sensor id.

CrController::~CrController (   )  [virtual]

Virtual destructor.

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Member Function Documentation

SoEvent* CrController::getEvent (   )  [inline]

Get the CrController's current SoEvent.

void CrController::setEvent (  SoEvent *   )

Sets the current SoEvent. (UNUSED?).

void CrController::setTool (  CrTool *   )

Attaches a tool to which Events will be sent.

virtual void CrController::updateController (   )  [inline, protected, virtual]

Checks the device state and updates the CrController's data. Reimplemented in CrHapticController, and CrWandController.

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Member Data Documentation

SoEvent* CrController::m_event [protected]

Current event object for the device state.

SbVec3f CrController::m_position [protected]

Current 3D controller position.

SbRotation CrController::m_rotation [protected]

Current 3D controller orientation stored as a quaternion.

short CrController::m_sensorID [protected]

Identifies the sensor.

CrTool* CrController::m_tool [protected]

Tool currently attached to the controller.

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

• E:/vaidya/sculptdemo/CrController.h
• E:/vaidya/sculptdemo/CrController.cxx

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