Package elki.visualization.visualizers.thumbs

Class ThumbnailVisualization

java.lang.Object

elki.visualization.visualizers.AbstractVisualization

elki.visualization.visualizers.thumbs.ThumbnailVisualization

All Implemented Interfaces:

DataStoreListener, ResultListener, VisualizationListener, ThumbnailThread.Listener, Visualization, java.util.EventListener

public class ThumbnailVisualization
extends AbstractVisualization
implements ThumbnailThread.Listener, DataStoreListener, VisualizationListener

Thumbnail visualization.

Since:

0.4.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field	Description
protected ThumbnailThread.Task	pendingThumbnail	Pending redraw
private SVGPlot	plot	Plot the thumbnail is in.
private Projection	proj	Projection.
private java.awt.image.BufferedImage	thumb	Our thumbnail (keep a reference to prevent garbage collection!)
protected int	thumbid	The thumbnail id.
protected int	tresolution	Thumbnail resolution
protected VisFactory	visFactory	Visualizer factory

Fields inherited from class elki.visualization.visualizers.AbstractVisualization

context, layer, svgp, task

Constructor Summary

Constructors

Constructor	Description
ThumbnailVisualization(VisualizerContext context, VisFactory visFactory, VisualizationTask task, VisualizationPlot plot, double width, double height, Projection proj, int thumbsize)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	destroy()	Destroy the visualization.
void	doThumbnail()	Callback when to (re-)compute the thumbnail.
void	fullRedraw()	Perform a full redraw.
org.w3c.dom.Element	getLayer()	Get the SVG layer of the given visualization.
private void	refreshThumbnail()
void	resultChanged(java.lang.Object current)	Notify that the current result has changed substantially.
void	visualizationChanged(VisualizationItem item)	Visualization has changed.

Methods inherited from class elki.visualization.visualizers.AbstractVisualization

addListeners, contentChanged, getHeight, getWidth, incrementalRedraw

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.database.datastore.DataStoreListener

contentChanged

Methods inherited from interface elki.result.ResultListener

resultAdded, resultRemoved

Field Detail

visFactory

protected final VisFactory visFactory

Visualizer factory

thumbid

protected int thumbid

The thumbnail id.

pendingThumbnail

protected ThumbnailThread.Task pendingThumbnail

Pending redraw

tresolution

protected int tresolution

Thumbnail resolution

thumb

private java.awt.image.BufferedImage thumb

Our thumbnail (keep a reference to prevent garbage collection!)

plot

private SVGPlot plot

Plot the thumbnail is in.

proj

private Projection proj

Projection.

Constructor Detail

ThumbnailVisualization

public ThumbnailVisualization(VisualizerContext context,
                              VisFactory visFactory,
                              VisualizationTask task,
                              VisualizationPlot plot,
                              double width,
                              double height,
                              Projection proj,
                              int thumbsize)

Constructor.

Parameters:

context - Visualizer context

visFactory - Visualizer Factory to use

task - Task to use

plot - Plot to draw to

width - Embedding width

height - Embedding height

proj - Projection

thumbsize - Thumbnail size

Method Detail

destroy

public void destroy()

Description copied from interface: Visualization

Destroy the visualization. Called after the elements have been removed from the document. Implementations should remove their listeners etc.

Specified by:

destroy in interface Visualization

Overrides:

destroy in class AbstractVisualization

getLayer

public org.w3c.dom.Element getLayer()

Description copied from interface: Visualization

Get the SVG layer of the given visualization.

Specified by:

getLayer in interface Visualization

Overrides:

getLayer in class AbstractVisualization

Returns:

layer

fullRedraw

public void fullRedraw()

Perform a full redraw.

Specified by:

fullRedraw in interface Visualization

Specified by:

fullRedraw in class AbstractVisualization

doThumbnail

public void doThumbnail()

Description copied from interface: ThumbnailThread.Listener

Callback when to (re-)compute the thumbnail.

Specified by:

doThumbnail in interface ThumbnailThread.Listener

refreshThumbnail

private void refreshThumbnail()

resultChanged

public void resultChanged(java.lang.Object current)

Description copied from interface: ResultListener

Notify that the current result has changed substantially.

Specified by:

resultChanged in interface ResultListener

Overrides:

resultChanged in class AbstractVisualization

Parameters:

current - Result that has changed.

visualizationChanged

public void visualizationChanged(VisualizationItem item)

Description copied from interface: VisualizationListener

Visualization has changed.

Specified by:

visualizationChanged in interface VisualizationListener

Overrides:

visualizationChanged in class AbstractVisualization

Parameters:

item - Changed visualization