org.opensourcephysics.media.core

Class GhostFilter

java.lang.Object

org.opensourcephysics.media.core.Filter

org.opensourcephysics.media.core.GhostFilter

public class GhostFilter
extends Filter

This is a Filter that produces fading ghost images of bright objects on a dark background.

Version:

1.0

Author:

Douglas Brown

Field Summary

Fields

Modifier and Type	Field and Description
protected int[]	pixels
protected int[]	values

Fields inherited from class org.opensourcephysics.media.core.Filter

ableButton, clearButton, closeButton, deleteItem, enabledAction, enabledItem, frame, hasInspector, inspectorVisible, inspectorX, inspectorY, propertiesItem, stack, support, vidPanel

Constructor Summary

Constructors

Constructor and Description
GhostFilter() Constructs a GhostFilter object with default fade.

Method Summary

Methods

Modifier and Type	Method and Description
void	clear() Clears ghosts.
double	getFade() Gets the fade.
java.awt.image.BufferedImage	getFilteredImage(java.awt.image.BufferedImage sourceImage) Applies the filter to a source image and returns the result.
javax.swing.JDialog	getInspector() Implements abstract Filter method.
static XML.ObjectLoader	getLoader() Returns an XML.ObjectLoader to save and load filter data.
void	refresh() Refreshes this filter's GUI
void	setEnabled(boolean enabled) Overrides the setEnabled method to force reinitialization.
void	setFade(double fade) Sets the fade.

Methods inherited from class org.opensourcephysics.media.core.Filter

addPropertyChangeListener, addPropertyChangeListener, getMenu, isEnabled, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Field Detail

pixels

protected int[] pixels

values

protected int[] values

Constructor Detail

GhostFilter

public GhostFilter()

Constructs a GhostFilter object with default fade.

Method Detail

setFade

public void setFade(double fade)

Sets the fade.

Parameters:

fade - the fraction by which a ghost image fades each time it is rendered. A fade of 0 never fades, while a fade of 1 fades completely and so is never seen.

getFade

public double getFade()

Gets the fade.

Returns:

the fade.

See Also:

setFade(double)

setEnabled

public void setEnabled(boolean enabled)

Overrides the setEnabled method to force reinitialization.

Overrides:

setEnabled in class Filter

Parameters:

enabled - true if this is enabled.

getFilteredImage

public java.awt.image.BufferedImage getFilteredImage(java.awt.image.BufferedImage sourceImage)

Applies the filter to a source image and returns the result.

Specified by:

getFilteredImage in class Filter

Parameters:

sourceImage - the source image

Returns:

the filtered image

getInspector

public javax.swing.JDialog getInspector()

Implements abstract Filter method.

Specified by:

getInspector in class Filter

Returns:

the inspector

clear

public void clear()

Clears ghosts.

Overrides:

clear in class Filter

refresh

public void refresh()

Refreshes this filter's GUI

Overrides:

refresh in class Filter

getLoader

public static XML.ObjectLoader getLoader()

Returns an XML.ObjectLoader to save and load filter data.

Returns:

the object loader