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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. More...
#include <Inventor/elements/SoListenerPositionElement.h>
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 void | initClass (void) |
static void | set (SoState *const state, SoNode *const node, const SbVec3f &position, SbBool setbylistener) |
static const SbVec3f & | get (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 |
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.
SoListenerPositionElement::~SoListenerPositionElement | ( | void | ) | [protected, virtual] |
The destructor.
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.
References SoReplacedElement::init(), and position.
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.
References SoElement::classStackIndex, SoElement::getElement(), and position.
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
References SoElement::classStackIndex, and SoElement::getConstElement().
Referenced by SoCamera::audioRender().
SoListenerPositionElement::position [protected] |
The position of the listener in world space. Can be set by the SoListener class or the SoCamera class.
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
Generated on Mon Feb 28 2011 10:12:14 for Coin by Doxygen. 1.7.3