de.lmu.ifi.dbs.elki.visualization.visualizers

Class AbstractVisualization

java.lang.Object

de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization

All Implemented Interfaces:

DataStoreListener, ResultListener, VisualizationListener, Visualization, EventListener

Direct Known Subclasses:

AbstractHistogramVisualization, AbstractOPTICSVisualization, AbstractParallelVisualization, AbstractScatterplotVisualization, CircleSegmentsVisualizer.Instance, KeyVisualization.Instance, PixmapVisualizer.Instance, SimilarityMatrixVisualizer.Instance, StaticVisualizationInstance, ThumbnailVisualization

public abstract class AbstractVisualization
extends Object
implements Visualization, ResultListener, VisualizationListener, DataStoreListener

Abstract base class for visualizations.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
protected VisualizerContext	context Our context
private double	height Height
protected Element	layer Layer storage
protected VisualizationPlot	svgp The plot we are attached to
protected VisualizationTask	task The visualization task we do.
private double	width Width

Constructor Summary

Constructors

Constructor and Description
AbstractVisualization(VisualizationTask task, VisualizationPlot plot, double width, double height) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addListeners() Add the listeners according to the mask.
void	contentChanged(DataStoreEvent e) Invoked after objects of the datastore have been updated, inserted or removed in some way.
void	destroy() Destroy the visualization.
abstract void	fullRedraw() Request a full redrawing of the visualization.
protected double	getHeight() Get the height
Element	getLayer() Get the SVG layer of the given visualization.
protected double	getWidth() Get the width
void	incrementalRedraw() Redraw the visualization (maybe incremental).
void	resultAdded(Result child, Result parent) A new derived result was added.
void	resultChanged(Result current) Notify that the current result has changed substantially.
void	resultRemoved(Result child, Result parent) A result was removed.
void	visualizationChanged(VisualizationItem item) Visualization has changed.

Methods inherited from class java.lang.Object

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

Field Detail

task

protected final VisualizationTask task

The visualization task we do.

context

protected final VisualizerContext context

Our context

svgp

protected final VisualizationPlot svgp

The plot we are attached to

layer

protected Element layer

Layer storage

width

private double width

Width

height

private double height

Height

Constructor Detail

AbstractVisualization

public AbstractVisualization(VisualizationTask task,
                     VisualizationPlot plot,
                     double width,
                     double height)

Constructor.

Parameters:

task - Visualization task

plot - Plot to draw to

width - Embedding width

height - Embedding height

Method Detail

addListeners

protected void addListeners()

Add the listeners according to the mask.

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

getLayer

public Element getLayer()

Description copied from interface: Visualization

Get the SVG layer of the given visualization.

Specified by:

getLayer in interface Visualization

Returns:

layer

getWidth

protected double getWidth()

Get the width

Returns:

the width

getHeight

protected double getHeight()

Get the height

Returns:

the height

incrementalRedraw

public void incrementalRedraw()

Redraw the visualization (maybe incremental). Optional - by default, it will do a full redraw, which often is faster!

Specified by:

incrementalRedraw in interface Visualization

fullRedraw

public abstract void fullRedraw()

Description copied from interface: Visualization

Request a full redrawing of the visualization.

Specified by:

fullRedraw in interface Visualization

resultAdded

public void resultAdded(Result child,
               Result parent)

Description copied from interface: ResultListener

A new derived result was added.

Specified by:

resultAdded in interface ResultListener

Parameters:

child - New child result added

parent - Parent result that was added to

resultChanged

public void resultChanged(Result current)

Description copied from interface: ResultListener

Notify that the current result has changed substantially.

Specified by:

resultChanged in interface ResultListener

Parameters:

current - Result that has changed.

resultRemoved

public void resultRemoved(Result child,
                 Result parent)

Description copied from interface: ResultListener

A result was removed.

Specified by:

resultRemoved in interface ResultListener

Parameters:

child - result that was removed

parent - Parent result that was removed from

visualizationChanged

public void visualizationChanged(VisualizationItem item)

Description copied from interface: VisualizationListener

Visualization has changed.

Specified by:

visualizationChanged in interface VisualizationListener

Parameters:

item - Changed visualization

contentChanged

public void contentChanged(DataStoreEvent e)

Description copied from interface: DataStoreListener

Invoked after objects of the datastore have been updated, inserted or removed in some way.

Specified by:

contentChanged in interface DataStoreListener

Parameters:

e - the update event