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SoListenerPositionElement Class Reference
[Elements (mostly for internal use)]

#include <Inventor/elements/SoListenerPositionElement.h>

Inheritance diagram for SoListenerPositionElement:

SoReplacedElement SoElement List of all members.

Detailed Description

The SoListenerPositionElement holds the position of the current listener.

This position is set by SoListener nodes and SoCamera Nodes during audio rendering. When a SoListener is visited by the SoAudioRenderAction, it will add a new SoListenerPositionElement to the state, holding it's position and with the setbylistener flag set. When a SoCamera is visited by SoAudioRenderAction, it will add a new SoListenerPositionElement only if there are no previous elements with the setbylistener flag set.

The SoListenerPositionElement is used when the SoVRMLSound nodes render themselves.

Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

Since:
Coin 2.0


Public Member Functions

virtual void init (SoState *state)
virtual void print (FILE *file) const
 Prints contents of element (not implemented).

Static Public Member Functions

static SoType getClassTypeId (void)
static int getClassStackIndex (void)
static void * createInstance (void)
static void initClass (void)
static void set (SoState *const state, SoNode *const node, const SbVec3f &position, SbBool setbylistener)
static const SbVec3fget (SoState *const state)
 Returns the current listener position.
static SbBool isSetByListener (SoState *const state)

Protected Member Functions

virtual ~SoListenerPositionElement ()

Protected Attributes

SbVec3f position
SbBool setbylistener


Constructor & Destructor Documentation

SoListenerPositionElement::~SoListenerPositionElement void   )  [protected, virtual]
 

The destructor.


Member Function Documentation

SoType SoListenerPositionElement::getClassTypeId void   )  [static]
 

This static method returns the class type.

Reimplemented from SoReplacedElement.

int SoListenerPositionElement::getClassStackIndex void   )  [static]
 

This static method returns the state stack index for the class.

Reimplemented from SoReplacedElement.

void * SoListenerPositionElement::createInstance void   )  [static]
 

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

void SoListenerPositionElement::initClass void   )  [static]
 

This static method initializes static data for the SoListenerPositionElement class.

Reimplemented from SoReplacedElement.

void SoListenerPositionElement::init SoState state  )  [virtual]
 

Initializes the element to it's default value. The default value for the position is (0.0f, 0.0f, 0.0f) and the default value for the setByListener flag is FALSE.

Reimplemented from SoReplacedElement.

void SoListenerPositionElement::set SoState *const   state,
SoNode *const   node,
const SbVec3f position,
SbBool  setbylistener
[static]
 

Sets the current listener position, and indicates if it was set by a SoListener node or a SoCamera node.

SbBool SoListenerPositionElement::isSetByListener SoState *const   state  )  [static]
 

Returns TRUE if the position was set by a SoListener node, and FALSE if it was set by a SoCamera node


Member Data Documentation

SoListenerPositionElement::position [protected]
 

The position of the listener in world space. Can be set by the SoListener class or the SoCamera class.


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

Copyright © 1998-2005 by Systems in Motion AS. All rights reserved.

Generated on Mon May 1 21:57:22 2006 for Coin by Doxygen. 1.4.6