javax.media.j3d

Class ConeSound

java.lang.Object

javax.media.j3d.SceneGraphObject

javax.media.j3d.Node

javax.media.j3d.Leaf

javax.media.j3d.Sound

javax.media.j3d.PointSound

javax.media.j3d.ConeSound

public class ConeSound
extends PointSound

The ConeSound node object defines a PointSound node whose sound source is directed along a specific vector in space. A ConeSound source is attenuated by gain scale factors and filters based on the angle between the vector from the source to the listener, and the ConeSound's direction vector. This attenuation is either a single spherical distance gain attenuation (as for a general PointSound source) or dual front and back distance gain attenuations defining elliptical attenuation areas. The angular filter and the active AuralAttribute component filter define what filtering is applied to the sound source. (See AuralAtttribute class for more details on filtering.) This node has the same attributes as a PointSound node with the addition of a direction vector and an array of points each containing: angular distance (in radians), gain scale factor, and filter (which for now consists of a lowpass filter cutoff frequency). Similar to the definition of the back distance gain array for PointSounds, a piece-wise linear curve (defined in terms of radians from the axis) specifies the slope of these additional attenuation values.

Distance Gain attuation

A cone sound node can have one or two distance attenuation arrays. If none are set, no distance gain attenuation is performed (equivalent to using a distance gain of 1.0 for all distances). If only one distance attenuation array is set, sphere attenuation is assumed. If both a front and back distance attenuation are set, elliptical attenuation regions are defined.

Use PointSound setDistanceGain() method to set the front distance attenuation array separate from the back distance attenuation array. A front distance attenuation array defines monotonically-increasing distances from the sound source origin along the position direction vector. A back distance attenuation array (if given) defines monotonically-increasing distances from the sound source origin along the negative direction vector. The two arrays must be of the same length. The backDistance[i] gain values must be less than or equal to the frontDistance[i] gain values.

Gain scale factors are associated with distances from the listener to the sound source via an array of (distance, gain-scale-factor) pairs. The gain scale factor applied to the sound source is the linear interpolated gain value between the distance value range that includes the current distance from the listener to the sound source.

The getDistanceGainLength method defined for PointSound returns the length of the all distance gain attenuation arrays, including the back distance gain arrays. Arrays passed into getDistanceGain methods should all be at least this size.

Direction Methods

This value is the sound source's direction vector. It is the axis from which angular distance is measured.

Angular Attenuation

Besides sound (linear) distance attenuation a ConeSound can optionally define angular gain and filter attenuation.

This attenuation is defined as a triple of (angular distance, gain-scale-factor, filter). The distance is measured as the angle in radians between the ConeSound's direction vector and the vector from the sound source position to the listener. Both the gain scale factor and filter applied to the sound source is the linear interpolation of values between the distance value range that includes the angular distance from the sound source axis.

If this is not set, no angular gain attenuation or filtering is performed (equivalent to using an angular gain scale factor of 1.0 and an angular filter of Sound.NO_FILTER for all distances).

If angular distance from the listener-sound-position vector and a sound's direction vector is less than the first distance in the array, only the first gain scale factor and first filter are applied to the sound source. This creates a conical region around the listener within which the sound is uniformly attenuated by first gain and first filter in the array.

If the distance from the listener-sound-position vector and the sound's direction vector is greater than the last distance in the array, the last gain scale factor and last filter are applied to the sound source.

Distance elements in this array of points is a monotonically-increasing set of floating point numbers measured from 0 to p radians. Gain scale factors elements in this list of points can be any positive floating point numbers. While for most applications this list of gain scale factors will usually be monotonically-decreasing, they do not have to be. The filter (for now) is a single simple frequency cutoff value.

The getAngularAttenuationArrayLength method returns the length of the angular attenuation arrays. Arrays passed into getAngularAttenuation methods should all be at least this size.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ALLOW_ANGULAR_ATTENUATION_READ Specifies that this ConeSound allows access to its object's cone params information.
static int	ALLOW_ANGULAR_ATTENUATION_WRITE Specifies that this ConeSound allows writing to its object's cone params information.
static int	ALLOW_DIRECTION_READ Specifies that this ConeSound allows access to its object's direction information.
static int	ALLOW_DIRECTION_WRITE Specifies that this ConeSound allows writing to its object's direction information.

Fields inherited from class javax.media.j3d.PointSound

ALLOW_DISTANCE_GAIN_READ, ALLOW_DISTANCE_GAIN_WRITE, ALLOW_POSITION_READ, ALLOW_POSITION_WRITE

Fields inherited from class javax.media.j3d.Sound

ALLOW_CHANNELS_USED_READ, ALLOW_CONT_PLAY_READ, ALLOW_CONT_PLAY_WRITE, ALLOW_DURATION_READ, ALLOW_ENABLE_READ, ALLOW_ENABLE_WRITE, ALLOW_INITIAL_GAIN_READ, ALLOW_INITIAL_GAIN_WRITE, ALLOW_IS_PLAYING_READ, ALLOW_IS_READY_READ, ALLOW_LOOP_READ, ALLOW_LOOP_WRITE, ALLOW_MUTE_READ, ALLOW_MUTE_WRITE, ALLOW_PAUSE_READ, ALLOW_PAUSE_WRITE, ALLOW_PRIORITY_READ, ALLOW_PRIORITY_WRITE, ALLOW_RATE_SCALE_FACTOR_READ, ALLOW_RATE_SCALE_FACTOR_WRITE, ALLOW_RELEASE_READ, ALLOW_RELEASE_WRITE, ALLOW_SCHEDULING_BOUNDS_READ, ALLOW_SCHEDULING_BOUNDS_WRITE, ALLOW_SOUND_DATA_READ, ALLOW_SOUND_DATA_WRITE, DURATION_UNKNOWN, INFINITE_LOOPS, NO_FILTER

Fields inherited from class javax.media.j3d.Node

ALLOW_AUTO_COMPUTE_BOUNDS_READ, ALLOW_AUTO_COMPUTE_BOUNDS_WRITE, ALLOW_BOUNDS_READ, ALLOW_BOUNDS_WRITE, ALLOW_COLLIDABLE_READ, ALLOW_COLLIDABLE_WRITE, ALLOW_LOCAL_TO_VWORLD_READ, ALLOW_LOCALE_READ, ALLOW_PARENT_READ, ALLOW_PICKABLE_READ, ALLOW_PICKABLE_WRITE, ENABLE_COLLISION_REPORTING, ENABLE_PICK_REPORTING

Constructor Summary

Constructors

Constructor and Description
ConeSound() Constructs and initializes a new ConeSound node using default parameters.
ConeSound(MediaContainer soundData, float initialGain, float posX, float posY, float posZ, float dirX, float dirY, float dirZ) Constructs a ConeSound node object using only the provided parameter values for sound, overall initial gain, position, and direction.
ConeSound(MediaContainer soundData, float initialGain, int loopCount, boolean release, boolean continuous, boolean enable, Bounds region, float priority, float posX, float posY, float posZ, float[] frontDistance, float[] frontDistanceGain, float[] backDistance, float[] backDistanceGain, float dirX, float dirY, float dirZ) Constructs a ConeSound node object using the provided parameter values.
ConeSound(MediaContainer soundData, float initialGain, int loopCount, boolean release, boolean continuous, boolean enable, Bounds region, float priority, float posX, float posY, float posZ, float[] frontDistance, float[] frontDistanceGain, float[] backDistance, float[] backDistanceGain, float dirX, float dirY, float dirZ, float[] angle, float[] angularGain, float[] frequencyCutoff) Constructs and initializes a new Cone Sound node explicitly setting all PointSound and ConeSound fields as arguments but all the vector and point arguments are broken into individual float array components.
ConeSound(MediaContainer soundData, float initialGain, int loopCount, boolean release, boolean continuous, boolean enable, Bounds region, float priority, float posX, float posY, float posZ, float[] distance, float[] distanceGain, float dirX, float dirY, float dirZ, float[] angle, float[] angularGain, float[] frequencyCutoff) Constructs a ConeSound node object using all the provided PointSound parameter values, which include a single spherical distance attenuation array, but includes an angular attenuation array.
ConeSound(MediaContainer soundData, float initialGain, int loopCount, boolean release, boolean continuous, boolean enable, Bounds region, float priority, javax.vecmath.Point3f position, javax.vecmath.Point2f[] frontDistanceAttenuation, javax.vecmath.Point2f[] backDistanceAttenuation, javax.vecmath.Vector3f direction) Constructs a ConeSound node object using all the provided PointSound parameter values.
ConeSound(MediaContainer soundData, float initialGain, int loopCount, boolean release, boolean continuous, boolean enable, Bounds region, float priority, javax.vecmath.Point3f position, javax.vecmath.Point2f[] frontDistanceAttenuation, javax.vecmath.Point2f[] backDistanceAttenuation, javax.vecmath.Vector3f direction, javax.vecmath.Point3f[] angularAttenuation) Constructs and initializes a new Cone Sound node explicitly setting all PointSound and ConeSound fields as arguments: the PointSound position, front and back distance attenuation Point2f array, and ConeSound direction vector and Point3f angular attenuation.
ConeSound(MediaContainer soundData, float initialGain, int loopCount, boolean release, boolean continuous, boolean enable, Bounds region, float priority, javax.vecmath.Point3f position, javax.vecmath.Point2f[] distanceAttenuation, javax.vecmath.Vector3f direction, javax.vecmath.Point3f[] angularAttenuation) Constructs a ConeSound node object using all the provided PointSound parameter values, which include a single spherical distance attenuation array, but includes an angular attenuation array.
ConeSound(MediaContainer soundData, float initialGain, javax.vecmath.Point3f position, javax.vecmath.Vector3f direction) Constructs a ConeSound node object using only the provided parameter values for sound, overall initial gain, position, and direction.

Method Summary

Methods

Modifier and Type	Method and Description
Node	cloneNode(boolean forceDuplicate) Creates a new instance of the node.
void	duplicateNode(Node originalNode, boolean forceDuplicate) Copies all node information from originalNode into the current node.
void	getAngularAttenuation(float[] distance, float[] gain, float[] filter) Copies the array of attenuation values from this sound, including gain and filter, into the separate arrays.
void	getAngularAttenuation(javax.vecmath.Point3f[] attenuation) Copies the array of attenuation values from this sound, including gain and filter, into the specified array.
int	getAngularAttenuationLength() Retrieves angular attenuation array length.
void	getDirection(javax.vecmath.Vector3f direction) Retrieves this sound's direction and places it in the vector provided.
void	getDistanceGain(float[] frontDistance, float[] frontGain, float[] backDistance, float[] backGain) Gets this sound's elliptical distance gain attenuation values in separate arrays.
void	getDistanceGain(javax.vecmath.Point2f[] frontAttenuation, javax.vecmath.Point2f[] backAttenuation) Gets this sound's elliptical distance attenuation.
void	setAngularAttenuation(float[] distance, float[] gain, float[] filter) Sets angular attenuation including gain and filter using separate arrays.
void	setAngularAttenuation(javax.vecmath.Point2f[] attenuation) Sets this sound's angular gain attenuation (not including filter).
void	setAngularAttenuation(javax.vecmath.Point3f[] attenuation) In the second form of setAngularAttenuation, an array of all three values is supplied.
void	setBackDistanceGain(float[] distance, float[] gain) Sets this sound's back distance gain attenuation as separate arrays.
void	setBackDistanceGain(javax.vecmath.Point2f[] attenuation) Sets this sound's back distance gain attenuation - where gain scale factor is applied to sound based on distance listener along the negative sound direction axis from sound source.
void	setDirection(float x, float y, float z) Sets this sound's direction from the three values provided.
void	setDirection(javax.vecmath.Vector3f direction) Sets this sound's direction from the vector provided.
void	setDistanceGain(float[] frontDistance, float[] frontGain, float[] backDistance, float[] backGain) Sets this sound's distance gain attenuation as an array of Point2fs.
void	setDistanceGain(javax.vecmath.Point2f[] frontAttenuation, javax.vecmath.Point2f[] backAttenuation) Sets this sound's distance gain elliptical attenuation - where gain scale factor is applied to sound based on distance listener is from sound source.

Methods inherited from class javax.media.j3d.PointSound

getDistanceGain, getDistanceGain, getDistanceGainLength, getPosition, setDistanceGain, setDistanceGain, setPosition, setPosition

Methods inherited from class javax.media.j3d.Sound

getContinuousEnable, getDuration, getEnable, getInitialGain, getLoop, getMute, getNumberOfChannelsUsed, getNumberOfChannelsUsed, getPause, getPriority, getRateScaleFactor, getReleaseEnable, getSchedulingBoundingLeaf, getSchedulingBounds, getSoundData, isPlaying, isPlaying, isPlayingSilently, isPlayingSilently, isReady, isReady, setContinuousEnable, setEnable, setInitialGain, setLoop, setMute, setPause, setPriority, setRateScaleFactor, setReleaseEnable, setSchedulingBoundingLeaf, setSchedulingBounds, setSoundData, updateNodeReferences

Methods inherited from class javax.media.j3d.Node

cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, getBounds, getBoundsAutoCompute, getCollidable, getLocale, getLocalToVworld, getLocalToVworld, getParent, getPickable, setBounds, setBoundsAutoCompute, setCollidable, setPickable

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, duplicateSceneGraphObject, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ALLOW_DIRECTION_READ

public static final int ALLOW_DIRECTION_READ

Specifies that this ConeSound allows access to its object's direction information.

See Also:

Constant Field Values

ALLOW_DIRECTION_WRITE

public static final int ALLOW_DIRECTION_WRITE

Specifies that this ConeSound allows writing to its object's direction information.

See Also:

Constant Field Values

ALLOW_ANGULAR_ATTENUATION_READ

public static final int ALLOW_ANGULAR_ATTENUATION_READ

Specifies that this ConeSound allows access to its object's cone params information.

See Also:

Constant Field Values

ALLOW_ANGULAR_ATTENUATION_WRITE

public static final int ALLOW_ANGULAR_ATTENUATION_WRITE

Specifies that this ConeSound allows writing to its object's cone params information.

See Also:

Constant Field Values

Constructor Detail

ConeSound

public ConeSound()

Constructs and initializes a new ConeSound node using default parameters. The following default values are used:

Direction vector: (0.0, 0.0, 1.0)
Angular attenuation: ((0.0, 1.0, Sound.NO_FILTER),(p/2, 0.0, Sound.NO_FILTER))

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         javax.vecmath.Point3f position,
         javax.vecmath.Vector3f direction)

Constructs a ConeSound node object using only the provided parameter values for sound, overall initial gain, position, and direction. The remaining fields are set to the default values above. This form uses Point3f as input for its position and Vector3f for direction.

Parameters:

soundData - sound source data associated with this node

initialGain - amplitude scale factor applied to sound

position - 3D location of source

direction - 3D vector defining cone's axis

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         float posX,
         float posY,
         float posZ,
         float dirX,
         float dirY,
         float dirZ)

Constructs a ConeSound node object using only the provided parameter values for sound, overall initial gain, position, and direction. The remaining fields are set to the default values above. This form uses individual float parameters for the elements of the position and direction vectors.

Parameters:

soundData - sound source data

initialGain - amplitude scale factor applied to sound

posX - x coordinate of location of source

posY - y coordinate of location of source

posZ - z coordinate of location of source

dirX - x coordinate cones' axii vector

dirY - y coordinate cones' axii vector

dirZ - z coordinate cones' axii vector

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         int loopCount,
         boolean release,
         boolean continuous,
         boolean enable,
         Bounds region,
         float priority,
         javax.vecmath.Point3f position,
         javax.vecmath.Point2f[] frontDistanceAttenuation,
         javax.vecmath.Point2f[] backDistanceAttenuation,
         javax.vecmath.Vector3f direction)

Constructs a ConeSound node object using all the provided PointSound parameter values. This form uses points or vectors as input for its position, direction, and front/back distance attenuation arrays.

Unlike the single distance gain attenuation array for PointSounds which define spherical areas about the sound source between which gains are linearly interpolated, this directed ConeSound can have two distance gain attenuation arrays that define ellipsoidal attenuation areas. See the setDistanceGain PointSound method for details on how the separate distance and distanceGain arrays are interpreted.

The ConeSound's direction vector and angular measurements are defined in the local coordinate system of the node.

Parameters:

soundData - sound source data associated with this node

initialGain - amplitude scale factor applied to sound

loopCount - number of times sound is looped

release - flag denoting playing sound to end

continuous - denotes that sound silently plays when disabled

enable - sound switched on/off

region - scheduling bounds

priority - playback ranking value

position - 3D location of source

frontDistanceAttenuation - array of (distance,gain) pairs controlling attenuation values along the positive direction axis

backDistanceAttenuation - array of (distance,gain) pairs controlling attenuation values along the negative direction axis

direction - vector defining cones' axii

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         int loopCount,
         boolean release,
         boolean continuous,
         boolean enable,
         Bounds region,
         float priority,
         float posX,
         float posY,
         float posZ,
         float[] frontDistance,
         float[] frontDistanceGain,
         float[] backDistance,
         float[] backDistanceGain,
         float dirX,
         float dirY,
         float dirZ)

Constructs a ConeSound node object using the provided parameter values. This form uses individual float parameters for the elements of the position, direction, and two distance attenuation arrays. Unlike the single distance gain attenuation array for PointSounds, which define spherical areas about the sound source between which gains are linearly interpolated, this directed ConeSound can have two distance gain attenuation arrays that define ellipsoidal attenuation areas. See the setDistanceGain PointSound method for details on how the separate distance and distanceGain arrays are interpreted. The ConeSound's direction vector and angular measurements are defined in the local coordinate system of the node.

Parameters:

soundData - sound source data associated with this node

initialGain - amplitude scale factor applied to sound

loopCount - number of times sound is looped

release - flag denoting playing sound to end

continuous - denotes that sound silently plays when disabled

enable - sound switched on/off

region - scheduling bounds

priority - playback ranking value

posX - x coordinate of location of source

posY - y coordinate of location of source

posZ - z coordinate of location of source

frontDistance - array of front distance values used for attenuation

frontDistanceGain - array of front gain scale factors used for attenuation

backDistance - array of back distance values used for attenuation

backDistanceGain - array of back gain scale factors used for attenuation

dirX - x coordinate cones' axii vector

dirY - y coordinate cones' axii vector

dirZ - z coordinate cones' axii vector

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         int loopCount,
         boolean release,
         boolean continuous,
         boolean enable,
         Bounds region,
         float priority,
         javax.vecmath.Point3f position,
         javax.vecmath.Point2f[] distanceAttenuation,
         javax.vecmath.Vector3f direction,
         javax.vecmath.Point3f[] angularAttenuation)

Constructs a ConeSound node object using all the provided PointSound parameter values, which include a single spherical distance attenuation array, but includes an angular attenuation array. This form uses points and vectors as input for its position, direction, single spherical distanceAttenuation array, and angularAttenuation array. It also accepts arrays of points for the distance attenuation and angular values. Each Point2f in the distanceAttenuation array contains a distance and a gain scale factor. Each Point3f in the angularAttenuation array contains an angular distance, a gain scale factor, and a filtering value (which is currently defined as a simple cutoff frequency).

Parameters:

soundData - sound source data associated with this node

initialGain - amplitude scale factor applied to sound

loopCount - number of times sound is looped

release - flag denoting playing sound to end

continuous - denotes that sound silently plays when disabled

enable - sound switched on/off

region - scheduling bounds

priority - playback ranking value

position - 3D location of source

distanceAttenuation - array of (distance,gain) pairs controlling attenuation values along the positive direction axis

direction - vector defining cones' axii

angularAttenuation - array of tuples defining angular gain/filtering

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         int loopCount,
         boolean release,
         boolean continuous,
         boolean enable,
         Bounds region,
         float priority,
         float posX,
         float posY,
         float posZ,
         float[] distance,
         float[] distanceGain,
         float dirX,
         float dirY,
         float dirZ,
         float[] angle,
         float[] angularGain,
         float[] frequencyCutoff)

Constructs a ConeSound node object using all the provided PointSound parameter values, which include a single spherical distance attenuation array, but includes an angular attenuation array. This form uses individual float parameters for elements of position, direction, distanceAttenuation array, and angularAttenuation array. It also accepts separate arrays for the distance and gain scale factors components of distance attenuation, and separate arrays for the angular distance, angular gain, and filtering components of angular attenuation. See the setDistanceGain ConeSound method for details on how the separate distance and distanceGain arrays are interpreted. See the setAngularAttenuation ConeSound method for details on how the separate angularDistance, angularGain, and filter arrays are interpreted.

Parameters:

soundData - sound source data associated with this node

initialGain - amplitude scale factor applied to sound

loopCount - number of times sound is looped

release - flag denoting playing sound to end

continuous - denotes that sound silently plays when disabled

enable - sound switched on/off

region - scheduling bounds

priority - playback ranking value

posX - x coordinate of location of source

posY - y coordinate of location of source

posZ - z coordinate of location of source

distance - array of front distance values used for attenuation

distanceGain - array of front gain scale factors used for attenuation

dirX - x coordinate cones' axii vector

dirY - y coordinate cones' axii vector

dirZ - z coordinate cones' axii vector

angle - array of angle radians for angularAttenuation

angularGain - array of gain scale factors for angularAttenuation

frequencyCutoff - array of lowpass filter values in Hertz

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         int loopCount,
         boolean release,
         boolean continuous,
         boolean enable,
         Bounds region,
         float priority,
         javax.vecmath.Point3f position,
         javax.vecmath.Point2f[] frontDistanceAttenuation,
         javax.vecmath.Point2f[] backDistanceAttenuation,
         javax.vecmath.Vector3f direction,
         javax.vecmath.Point3f[] angularAttenuation)

Constructs and initializes a new Cone Sound node explicitly setting all PointSound and ConeSound fields as arguments: the PointSound position, front and back distance attenuation Point2f array, and ConeSound direction vector and Point3f angular attenuation.

Parameters:

soundData - sound source data associated with this node

initialGain - amplitude scale factor applied to sound

loopCount - number of times sound is looped

release - flag denoting playing sound to end

continuous - denotes that sound silently plays when disabled

enable - sound switched on/off

region - scheduling bounds

priority - playback ranking value

position - 3D location of source

frontDistanceAttenuation - array of (distance,gain) pairs controlling attenuation values along the positive direction axis

backDistanceAttenuation - array of (distance,gain) pairs controlling attenuation values along the negative direction axis

direction - vector defining cones' axii

angularAttenuation - array of tuples defining angular gain/filtering

ConeSound

public ConeSound(MediaContainer soundData,
         float initialGain,
         int loopCount,
         boolean release,
         boolean continuous,
         boolean enable,
         Bounds region,
         float priority,
         float posX,
         float posY,
         float posZ,
         float[] frontDistance,
         float[] frontDistanceGain,
         float[] backDistance,
         float[] backDistanceGain,
         float dirX,
         float dirY,
         float dirZ,
         float[] angle,
         float[] angularGain,
         float[] frequencyCutoff)

Constructs and initializes a new Cone Sound node explicitly setting all PointSound and ConeSound fields as arguments but all the vector and point arguments are broken into individual float array components.

Parameters:

soundData - sound source data associated with this node

initialGain - amplitude scale factor applied to sound

loopCount - number of times sound is looped

release - flag denoting playing sound to end

continuous - denotes that sound silently plays when disabled

enable - sound switched on/off

region - scheduling bounds

priority - playback ranking value

posX - x coordinate of location of source

posY - y coordinate of location of source

posZ - z coordinate of location of source

frontDistance - array of front distance values used for attenuation

frontDistanceGain - array of front gain scale factors used for attenuation

backDistance - array of back distance values used for attenuation

backDistanceGain - array of back gain scale factors used for attenuation

dirX - x coordinate cones' axii vector

dirY - y coordinate cones' axii vector

dirZ - z coordinate cones' axii vector

angle - array of angle radians for angularAttenuation

angularGain - array of gain scale factors for angularAttenuation

frequencyCutoff - array of lowpass filter values in Hertz

Method Detail

setDistanceGain

public void setDistanceGain(javax.vecmath.Point2f[] frontAttenuation,
                   javax.vecmath.Point2f[] backAttenuation)

Sets this sound's distance gain elliptical attenuation - where gain scale factor is applied to sound based on distance listener is from sound source.

Parameters:

frontAttenuation - defined by pairs of (distance,gain-scale-factor)

backAttenuation - defined by pairs of (distance,gain-scale-factor)

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setDistanceGain

public void setDistanceGain(float[] frontDistance,
                   float[] frontGain,
                   float[] backDistance,
                   float[] backGain)

Sets this sound's distance gain attenuation as an array of Point2fs.

Parameters:

frontDistance - array of monotonically-increasing floats

frontGain - array of non-negative scale factors

backDistance - array of monotonically-increasing floats

backGain - array of non-negative scale factors

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setBackDistanceGain

public void setBackDistanceGain(javax.vecmath.Point2f[] attenuation)

Sets this sound's back distance gain attenuation - where gain scale factor is applied to sound based on distance listener along the negative sound direction axis from sound source.

Parameters:

attenuation - defined by pairs of (distance,gain-scale-factor)

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setBackDistanceGain

public void setBackDistanceGain(float[] distance,
                       float[] gain)

Sets this sound's back distance gain attenuation as separate arrays.

Parameters:

distance - array of monotonically-increasing floats

gain - array of non-negative scale factors

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getDistanceGain

public void getDistanceGain(javax.vecmath.Point2f[] frontAttenuation,
                   javax.vecmath.Point2f[] backAttenuation)

Gets this sound's elliptical distance attenuation. The attenuation values are copied into the specified arrays. The arrays must be large enough to hold all of the forward distances and backward distances attenuation values. The individual array elements must be allocated by the caller. The Point2f x,y values are defined as follows: x is the distance, y is the gain.

Parameters:

frontAttenuation - arrays containing forward distances attenuation pairs

backAttenuation - arrays containing backward distances attenuation pairs

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getDistanceGain

public void getDistanceGain(float[] frontDistance,
                   float[] frontGain,
                   float[] backDistance,
                   float[] backGain)

Gets this sound's elliptical distance gain attenuation values in separate arrays. The arrays must be large enough to hold all of the values.

Parameters:

frontDistance - array of float distances along the sound axis

frontGain - array of non-negative scale factors associated with front distances

backDistance - array of float negative distances along the sound axis

backGain - array of non-negative scale factors associated with back distances

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setDirection

public void setDirection(javax.vecmath.Vector3f direction)

Sets this sound's direction from the vector provided.

Parameters:

direction - the new direction

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setDirection

public void setDirection(float x,
                float y,
                float z)

Sets this sound's direction from the three values provided.

Parameters:

x - the new x direction

y - the new y direction

z - the new z direction

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getDirection

public void getDirection(javax.vecmath.Vector3f direction)

Retrieves this sound's direction and places it in the vector provided.

Parameters:

direction - axis of cones; 'direction' of sound

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setAngularAttenuation

public void setAngularAttenuation(javax.vecmath.Point2f[] attenuation)

Sets this sound's angular gain attenuation (not including filter). In this form of setAngularAttenuation, only the angular distances and angular gain scale factors pairs are given. The filter values for these tuples are implicitly set to Sound.NO_FILTER.

Parameters:

attenuation - array containing angular distance and gain

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setAngularAttenuation

public void setAngularAttenuation(javax.vecmath.Point3f[] attenuation)

In the second form of setAngularAttenuation, an array of all three values is supplied.

Parameters:

attenuation - array containing angular distance, gain, and filter

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setAngularAttenuation

public void setAngularAttenuation(float[] distance,
                         float[] gain,
                         float[] filter)

Sets angular attenuation including gain and filter using separate arrays. The third form of setAngularAttenuation accepts three separate arrays for these angular attenuation values. These arrays should be of the same length. If the angularGain or filtering array length is greater than angularDistance array length, the array elements beyond the length of the angularDistance array are ignored. If the angularGain or filtering array is shorter than the angularDistance array, the last value of the short array is repeated to fill an array of length equal to angularDistance array.

Parameters:

distance - array containing angular distance

gain - array containing angular gain attenuation

filter - array containing angular low-pass frequency cutoff values

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getAngularAttenuationLength

public int getAngularAttenuationLength()

Retrieves angular attenuation array length. All arrays are forced to same size.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getAngularAttenuation

public void getAngularAttenuation(javax.vecmath.Point3f[] attenuation)

Copies the array of attenuation values from this sound, including gain and filter, into the specified array. The array must be large enough to hold all of the points. The individual array elements must be allocated by the caller. The Point3f x,y,z values are defined as follows: x is the angular distance, y is the angular gain attenuation, and z is the frequency cutoff.

Parameters:

attenuation - the array to receive the attenuation values applied to gain when listener is between cones

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getAngularAttenuation

public void getAngularAttenuation(float[] distance,
                         float[] gain,
                         float[] filter)

Copies the array of attenuation values from this sound, including gain and filter, into the separate arrays. The arrays must be large enough to hold all of the values.

Parameters:

distance - array containing angular distance

gain - array containing angular gain attenuation

filter - array containing angular low-pass frequency cutoff values

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

cloneNode

public Node cloneNode(boolean forceDuplicate)

Creates a new instance of the node. This routine is called by cloneTree to duplicate the current node.

Overrides:

cloneNode in class PointSound

Parameters:

forceDuplicate - when set to true, causes the duplicateOnCloneTree flag to be ignored. When false, the value of each node's duplicateOnCloneTree variable determines whether NodeComponent data is duplicated or copied.

See Also:

Node.cloneTree(), Node.cloneNode(boolean), Node.duplicateNode(javax.media.j3d.Node, boolean), NodeComponent.setDuplicateOnCloneTree(boolean)

duplicateNode

public void duplicateNode(Node originalNode,
                 boolean forceDuplicate)

Copies all node information from originalNode into the current node. This method is called from the cloneNode method which is, in turn, called by the cloneTree method.

For any NodeComponent objects contained by the object being duplicated, each NodeComponent object's duplicateOnCloneTree value is used to determine whether the NodeComponent should be duplicated in the new node or if just a reference to the current node should be placed in the new node. This flag can be overridden by setting the forceDuplicate parameter in the cloneTree method to true.
NOTE: Applications should not call this method directly. It should only be called by the cloneNode method.

Overrides:

duplicateNode in class PointSound

Parameters:

originalNode - the original node to duplicate.

forceDuplicate - when set to true, causes the duplicateOnCloneTree flag to be ignored. When false, the value of each node's duplicateOnCloneTree variable determines whether NodeComponent data is duplicated or copied.

Throws:

ClassCastException - if originalNode is not an instance of ConeSound

See Also:

Node.cloneTree(), Node.cloneNode(boolean), NodeComponent.setDuplicateOnCloneTree(boolean)