jass.generators
Class ModalObject

java.lang.Object
  jass.engine.Out
      jass.engine.InOut
          jass.generators.ModalObject

All Implemented Interfaces:

Sink, Source

public class ModalObject
extends InOut

Vibration model of object, capable of playing sound.

Author:

Kees van den Doel (kvdoel@cs.ubc.ca)

Nested Class Summary

class

ModalObject.Contact Represents contact with location in barycentric coordinates.

Field Summary

ModalModel	modalModel Modal data.
float	srate Sampling rate in Hertz.

Fields inherited from class jass.engine.InOut

sourceContainer, sourcePassivity, srcBuffers

Fields inherited from class jass.engine.Out

buf, bufferSize, bufOld, lock

Constructor Summary

ModalObject(float srate, int nf, int np, int bufferSize)
Create and initialize, but don't set any modal parameters.

ModalObject(ModalModel m, float srate, int bufferSize)
Create and initialize with provided modal data.

Method Summary

java.lang.Object	addSource(Source s) Add a Source.
void	clearHistory() Set state to non-vibrating.
protected void	computeBuffer() Compute the next buffer and store in member float[] buf.
void	computeFilter() Compute the filter coefficients used for real-time rendering from the modal model parameters.
void	computeResonCoeff() Compute the reson coefficients from the modal model parameters.
void	removeSource(Source s) Remove a Source.
void	setDamping(float dscale) Scale dampings.
void	setFrequencyScale(float fscale) Scale frequencies.
void	setNf(int nf) Reduce number of modes used.

Methods inherited from class jass.engine.InOut

addSource, getBuffer, getSources, resetTime

Methods inherited from class jass.engine.Out

clearBuffer, copyToOld, getBuffer, getBufferSize, getTime, peekAtBuffer, setBufferSize, setTime, setTimeAndNotify

Methods inherited from class java.lang.Object

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

Field Detail

srate

public float srate

Sampling rate in Hertz.

modalModel

public ModalModel modalModel

Modal data.

Constructor Detail

ModalObject

public ModalObject(float srate,
                   int nf,
                   int np,
                   int bufferSize)

Create and initialize, but don't set any modal parameters.

Parameters:

srate - sampling rate in Hertz.

nf - number of modes.

np - number of locations.

bufferSize - Buffer size used for real-time rendering.

ModalObject

public ModalObject(ModalModel m,
                   float srate,
                   int bufferSize)

Create and initialize with provided modal data.

Parameters:

m - modal model to load.

srate - sampling rate in Hertz.

bufferSize - Buffer size used for real-time rendering.

Method Detail

addSource

public java.lang.Object addSource(Source s)
                           throws SinkIsFullException

Add a Source. Implements Sink interface. Must take into account that may add source while running, so have to set time.

Specified by:

addSource in interface Sink

Overrides:

addSource in class InOut

Parameters:

s - Source to add.

Returns:

object representing Source in Sink (may be null).

Throws:

SinkIsFullException

removeSource

public void removeSource(Source s)

Remove a Source. Implements Sink interface.

Specified by:

removeSource in interface Sink

Overrides:

removeSource in class InOut

Parameters:

s - Source to remove.

setDamping

public void setDamping(float dscale)

Scale dampings.

Parameters:

d - damping scale.

setFrequencyScale

public void setFrequencyScale(float fscale)

Scale frequencies.

Parameters:

fscale - frequency scale.

setNf

public void setNf(int nf)

Reduce number of modes used.

Parameters:

nf - number of modes to use.

computeFilter

public void computeFilter()

Compute the filter coefficients used for real-time rendering from the modal model parameters.

computeResonCoeff

public void computeResonCoeff()

Compute the reson coefficients from the modal model parameters. Cache values for location computation.

clearHistory

public void clearHistory()

Set state to non-vibrating.

computeBuffer

protected void computeBuffer()

Compute the next buffer and store in member float[] buf.

Specified by:

computeBuffer in class Out