org.opensourcephysics.cabrillo.tracker
Class ParticleModel

java.lang.Object
  org.opensourcephysics.cabrillo.tracker.TTrack
      org.opensourcephysics.cabrillo.tracker.PointMass
          org.opensourcephysics.cabrillo.tracker.ParticleModel

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.util.EventListener, Drawable, Interactive, Measurable, Trackable

Direct Known Subclasses:

AnalyticParticle, DynamicParticle, DynamicTwoBody.Body2

public abstract class ParticleModel
extends PointMass

A ParticleModel is a point mass whose positions are determined by a model.

Author:

Douglas Brown

Nested Class Summary

Nested classes/interfaces inherited from class org.opensourcephysics.cabrillo.tracker.TTrack

TTrack.StepArray

Field Summary

protected double	dt
protected UserFunctionEditor	functionEditor
protected ModelFunctionPanel	functionPanel
protected FunctionTool	inspector
protected int	inspectorH
protected int	inspectorX
protected int	inspectorY
protected boolean	isInspectorVisible
protected int	lastValidFrame
protected double[]	prevX
protected double[]	prevY
protected boolean	refreshing
protected boolean	showInspector
protected double	t0
protected double	time
protected java.awt.geom.GeneralPath	trace
protected static int[]	traceButtonChoices
protected static java.lang.String[]	traceButtonText
protected TPoint	tracePt
protected int	tracePtsPerStep
protected java.awt.Stroke	traceStroke
protected double[]	traceX
protected double[]	traceY

Fields inherited from class org.opensourcephysics.cabrillo.tracker.PointMass

aAtOrigin, accelerationMenu, aDeriv, aFootprint, aFootprints, aMap, aTailsToOriginItem, aTailsToPositionItem, aVisibleItem, aVisibleOnAll, aVisMap, colorIndex, colors, dataDescriptions, derivData, labelsVisibleItem, mass, massField, massLabel, mSeparator, names, namesIndex, params, validData, vAtOrigin, vDeriv, velocityMenu, vFootprint, vFootprints, vMap, vTailsToOriginItem, vTailsToPositionItem, vVisibleItem, vVisibleOnAll, vVisMap, xData, xVisibleOnAll, xVisMap, yData

Fields inherited from class org.opensourcephysics.cabrillo.tracker.TTrack

angleField, angleLabel, angleSeparator, autoAdvance, autoAdvanceItem, colorItem, data, dataColumnsItem, dataFrames, dataProp, dataValid, defaultColor, defaultFootprint, deleteItem, description, descriptionItem, enabled, fieldBorder, footprint, footprintListener, footprintMenu, footprints, hint, labelFont, locked, lockedItem, magField, magLabel, magSeparator, markByDefault, markByDefaultItem, menu, name, nameAction, nameDialog, nameField, nameItem, panels, partName, point, properties, stepField, stepLabel, steps, stepSeparator, support, tField, tLabel, toolbarPointComponents, toolbarTrackComponents, trackerPanel, trailLength, trailVisible, trailVisibleItem, tSeparator, viewable, visible, visibleItem, worldBounds, xField, xLabel, xSeparator, xSpinner, yField, yLabel, ySeparator, ySpinner

Constructor Summary

ParticleModel()
Constructs a ParticleModel.

Method Summary

protected void	cleanup() Cleans up associated resources when this track is deleted or cleared.
protected void	createMassAndTimeParameters() This adds the mass and initial time parameters to the function panel.
void	draw(DrawingPanel panel, java.awt.Graphics _g) Overrides PointMass draw method.
Interactive	findInteractive(DrawingPanel panel, int xpix, int ypix) Overrides PointMass findInteractive method.
UserFunctionEditor	getFunctionEditor() Gets the function editor.
InitialValueEditor	getInitEditor() Gets the initial value editor.
double[]	getInitialValues() Gets the initial values.
FunctionTool	getInspector() Gets the particle inspector.
static XML.ObjectLoader	getLoader() Returns an ObjectLoader to save and load data for this class.
double	getMass() Gets the mass.
javax.swing.JMenu	getMenu(TrackerPanel trackerPanel) Returns a menu with items that control this track.
ParamEditor	getParamEditor() Gets the parameter editor.
protected ParticleModel[]	getParticles() Gets the next trace positions.
java.util.ArrayList<java.awt.Component>	getToolbarPointComponents(TrackerPanel trackerPanel, TPoint point) Overrides TTrack getToolbarPointComponents method.
java.util.ArrayList<java.awt.Component>	getToolbarTrackComponents(TrackerPanel trackerPanel) Overrides TTrack getToolbarTrackComponents method.
protected void	initializeFunctionPanel() Initializes the ModelFunctionPanel.
boolean	isDependent() Overrides TTrack method to report that this is a dependent track.
boolean	isStepComplete(int n) Overrides TTrack isStepComplete method.
void	propertyChange(java.beans.PropertyChangeEvent e) Responds to property change events.
protected void	refreshSteps() Refreshes step positions.
void	setLocked(boolean locked) Overrides TTrack setLocked method.
void	setMass(double mass) Sets the mass.
void	setName(java.lang.String name) Sets the name.

Methods inherited from class org.opensourcephysics.cabrillo.tracker.PointMass

createStep, deleteStep, erase, erase, getAArray, getAcceleration, getAccelerationFootprint, getAccelerationFootprints, getAccelerations, getDataDescription, getFootprint, getFootprintLength, getFootprints, getNextVisibleStep, getPreviousVisibleStep, getRotationData, getStep, getVArray, getVelocities, getVelocity, getVelocityFootprint, getVelocityFootprints, getWorldAcceleration, getWorldPosition, getWorldVelocity, isAcceleration, isAVisible, isLabelsVisible, isPosition, isPositionVisible, isStepVisible, isVelocity, isVVisible, refreshData, remark, remark, setAccelerationFootprint, setAccelerationFootprints, setAVisible, setAVisibleOnAll, setColor, setFootprint, setLabelsVisible, setPositionVisible, setPositionVisibleOnAll, setVelocityFootprint, setVelocityFootprints, setVVisible, setVVisibleOnAll, toString, updateDerivatives, updateDerivatives

Methods inherited from class org.opensourcephysics.cabrillo.tracker.TTrack

addFootprint, addPropertyChangeListener, addPropertyChangeListener, delete, firePropertyChange, getColor, getData, getDataName, getDescription, getFootprint, getFootprints, getFrameForData, getMessage, getName, getProperty, getPropertyNames, getStep, getSteps, getTrailLength, getWorldBounds, getX, getXMax, getXMax, getXMin, getXMin, getY, getYMax, getYMax, getYMin, getYMin, isAutoAdvance, isEmpty, isEnabled, isLocked, isMarkByDefault, isMeasured, isTrailVisible, isViewable, isVisible, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, setAutoAdvance, setDescription, setEnabled, setFootprint, setFootprints, setFootprints, setMarkByDefault, setProperty, setTrackerPanel, setTrailLength, setTrailVisible, setViewable, setVisible, setX, setXY, setY

Methods inherited from class java.lang.Object

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

Field Detail

traceButtonChoices

protected static int[] traceButtonChoices

traceButtonText

protected static java.lang.String[] traceButtonText

inspector

protected FunctionTool inspector

functionPanel

protected ModelFunctionPanel functionPanel

functionEditor

protected UserFunctionEditor functionEditor

inspectorX

protected int inspectorX

inspectorY

protected int inspectorY

inspectorH

protected int inspectorH

showInspector

protected boolean showInspector

isInspectorVisible

protected boolean isInspectorVisible

refreshing

protected boolean refreshing

traceX

protected double[] traceX

traceY

protected double[] traceY

prevX

protected double[] prevX

prevY

protected double[] prevY

tracePt

protected TPoint tracePt

trace

protected java.awt.geom.GeneralPath trace

traceStroke

protected java.awt.Stroke traceStroke

tracePtsPerStep

protected int tracePtsPerStep

lastValidFrame

protected int lastValidFrame

t0

protected double t0

dt

protected double dt

time

protected double time

Constructor Detail

ParticleModel

public ParticleModel()

Constructs a ParticleModel.

Method Detail

draw

public void draw(DrawingPanel panel,
                 java.awt.Graphics _g)

Overrides PointMass draw method.

Specified by:

draw in interface Drawable

Overrides:

draw in class PointMass

Parameters:

panel - the drawing panel requesting the drawing

_g - the graphics context on which to draw

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent e)

Responds to property change events.

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

Overrides:

propertyChange in class PointMass

Parameters:

e - the property change event

getMass

public double getMass()

Gets the mass. Overrides PointMass method.

Overrides:

getMass in class PointMass

Returns:

the mass

setMass

public void setMass(double mass)

Sets the mass. Overrides PointMass method.

Overrides:

setMass in class PointMass

Parameters:

mass - the mass

setName

public void setName(java.lang.String name)

Sets the name. Overrides TTrack method.

Overrides:

setName in class TTrack

Parameters:

name - the name

findInteractive

public Interactive findInteractive(DrawingPanel panel,
                                   int xpix,
                                   int ypix)

Overrides PointMass findInteractive method.

Specified by:

findInteractive in interface Interactive

Overrides:

findInteractive in class PointMass

Parameters:

panel - the drawing panel

xpix - the x pixel position on the panel

ypix - the y pixel position on the panel

Returns:

the first step or motion vector that is hit

setLocked

public void setLocked(boolean locked)

Overrides TTrack setLocked method. ParticleModel is always locked.

Overrides:

setLocked in class TTrack

Parameters:

locked - ignored

isDependent

public boolean isDependent()

Overrides TTrack method to report that this is a dependent track.

Overrides:

isDependent in class TTrack

Returns:

true if this track is dependent

isStepComplete

public boolean isStepComplete(int n)

Overrides TTrack isStepComplete method. Always returns true.

Overrides:

isStepComplete in class TTrack

Parameters:

n - the frame number

Returns:

true always since gets data from model

getMenu

public javax.swing.JMenu getMenu(TrackerPanel trackerPanel)

Returns a menu with items that control this track.

Overrides:

getMenu in class PointMass

Parameters:

trackerPanel - the tracker panel

Returns:

a menu

getToolbarTrackComponents

public java.util.ArrayList<java.awt.Component> getToolbarTrackComponents(TrackerPanel trackerPanel)

Overrides TTrack getToolbarTrackComponents method.

Overrides:

getToolbarTrackComponents in class PointMass

Parameters:

trackerPanel - the tracker panel

Returns:

a list of components

getToolbarPointComponents

public java.util.ArrayList<java.awt.Component> getToolbarPointComponents(TrackerPanel trackerPanel,
                                                                         TPoint point)

Overrides TTrack getToolbarPointComponents method.

Overrides:

getToolbarPointComponents in class PointMass

Parameters:

trackerPanel - the tracker panel

point - the TPoint

Returns:

a list of components

cleanup

protected void cleanup()

Cleans up associated resources when this track is deleted or cleared.

Overrides:

cleanup in class TTrack

getParticles

protected ParticleModel[] getParticles()

Gets the next trace positions. Subclasses override to get positions based on model.

refreshSteps

protected void refreshSteps()

Refreshes step positions.

getInspector

public FunctionTool getInspector()

Gets the particle inspector.

Returns:

the inspector

initializeFunctionPanel

protected void initializeFunctionPanel()

Initializes the ModelFunctionPanel. The panel must created by subclasses before calling this method.

createMassAndTimeParameters

protected void createMassAndTimeParameters()

This adds the mass and initial time parameters to the function panel.

getInitialValues

public double[] getInitialValues()

Gets the initial values.

Returns:

initial values

getParamEditor

public ParamEditor getParamEditor()

Gets the parameter editor.

Returns:

ParamEditor

getInitEditor

public InitialValueEditor getInitEditor()

Gets the initial value editor.

Returns:

the editor

getFunctionEditor

public UserFunctionEditor getFunctionEditor()

Gets the function editor.

Returns:

UserFunctionEditor

getLoader

public static XML.ObjectLoader getLoader()

Returns an ObjectLoader to save and load data for this class.

Returns:

the object loader