org.fraid.function
Class RungeKuttaFunction

java.lang.Object
  org.fraid.function.ComplexFunction
      org.fraid.function.DefinedFunction
          org.fraid.function.RungeKuttaFunction

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.EventListener, javax.swing.event.ChangeListener

public class RungeKuttaFunction
extends DefinedFunction
implements javax.swing.event.ChangeListener

This is a hack to make the differential equation plot listen to the variable changes. It has features of SampledFunction (mSamples) and DefinedFunction (mListeners) see org.fraid.utils.functions.rk and org.fraid.utils.functions.rk1

See Also:

Serialized Form

Field Summary

Samples

mSamples

Fields inherited from class org.fraid.function.DefinedFunction

mCore, mGenerator, mListeners

Fields inherited from class org.fraid.function.ComplexFunction

mName, mNumberOfArguments

Constructor Summary

RungeKuttaFunction(java.lang.String aFunctionName)

Method Summary

java.lang.Object	clone() Used when a panel is cloned to be saved in a file.
java.lang.String	getDependancies() On what other definitions this function depends.
int	getNumberOfArguments() How many arguments this function takes.
void	init()
Complex	invoke(Complex[] args) The actual call to the function.
void	setFunctions(java.util.Vector aFunctions)
void	setInitialValues(DefinedFunction[] aInitialValues)
void	setLength(DefinedFunction aLength)
void	setPeers(RungeKuttaFunction[] aPeers)
void	setTimeBegin(DefinedFunction aTimeBegin)
void	setTimeEnd(DefinedFunction aTimeEnd)
void	stateChanged(javax.swing.event.ChangeEvent aEvent)
java.lang.String	toString() The String representataion (DefinedFunction gives you back the complete definition).

Methods inherited from class org.fraid.function.DefinedFunction

addChangeListener, clearGenerator, copyFunctionality, createDummyArgumentList, duplicateListenersToNode, getArgumentsDescription, getBaseSampledFunction, getBaseSamples, getDefinedFunction, getDependancies, getEvaluatedSamples, getGenerator, getRoot, getSamples, getSignature, isBasedOnSampled, isSampled, isTreeBasedGenerated, notifyListeners, regenerate, removeChangeListener, rename, setArgumentsDescription, setGenerator, setRegenerationFlag, setRoot, setSamples, toStringGenerated, toStringSamples

Methods inherited from class org.fraid.function.ComplexFunction

exec, getName, setName, setNumberOfArguments

Methods inherited from class java.lang.Object

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

Field Detail

mSamples

public Samples mSamples

Constructor Detail

RungeKuttaFunction

public RungeKuttaFunction(java.lang.String aFunctionName)
                   throws SymbTableException

Throws:

SymbTableException

Method Detail

invoke

public Complex invoke(Complex[] args)
               throws java.lang.Exception

Description copied from class: ComplexFunction

The actual call to the function.

Overrides:

invoke in class DefinedFunction

Parameters:

args - the arguments, can be (and usualy are) SimpleNode's

Returns:

a Complex value

Throws:

java.lang.Exception - if an error occurs

See Also:

SimpleNode

getNumberOfArguments

public int getNumberOfArguments()

Description copied from class: ComplexFunction

How many arguments this function takes. Used for identification only, the function can actually process diff. number.

Overrides:

getNumberOfArguments in class DefinedFunction

Returns:

an int value

clone

public java.lang.Object clone()

Description copied from class: ComplexFunction

Used when a panel is cloned to be saved in a file. The clone is transient (not included in the symbtable). This ensures the function won't change while we are generating large files.

Overrides:

clone in class DefinedFunction

Returns:

an Object value

toString

public java.lang.String toString()

Description copied from class: ComplexFunction

The String representataion (DefinedFunction gives you back the complete definition).

Overrides:

toString in class DefinedFunction

Returns:

a String value

See Also:

DefinedFunction

getDependancies

public java.lang.String getDependancies()

Description copied from class: ComplexFunction

On what other definitions this function depends. Example: a=5; b='a; //now b depends on a, if I want to use it tomorrow need to save the whole thing.

Overrides:

getDependancies in class DefinedFunction

Returns:

a String value

See Also:

DefinedFunction

stateChanged

public void stateChanged(javax.swing.event.ChangeEvent aEvent)

Specified by:

stateChanged in interface javax.swing.event.ChangeListener

setFunctions

public void setFunctions(java.util.Vector aFunctions)

setInitialValues

public void setInitialValues(DefinedFunction[] aInitialValues)

setTimeBegin

public void setTimeBegin(DefinedFunction aTimeBegin)

setTimeEnd

public void setTimeEnd(DefinedFunction aTimeEnd)

setLength

public void setLength(DefinedFunction aLength)

setPeers

public void setPeers(RungeKuttaFunction[] aPeers)

init

public void init()
          throws java.lang.Exception

Throws:

java.lang.Exception