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

Class OPTICSPlotCutVisualization<D extends Distance<D>>

java.lang.Object

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

de.lmu.ifi.dbs.elki.visualization.visualizers.optics.AbstractOPTICSVisualization<D>

de.lmu.ifi.dbs.elki.visualization.visualizers.optics.OPTICSPlotCutVisualization<D>

Type Parameters:

D - distance type

All Implemented Interfaces:

ResultListener, DragableArea.DragListener, ContextChangeListener, Visualization, EventListener

public class OPTICSPlotCutVisualization<D extends Distance<D>>
extends AbstractOPTICSVisualization<D>
implements DragableArea.DragListener

Visualizes a cut in an OPTICS Plot to select an Epsilon value and generate a new clustering result

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OPTICSPlotCutVisualization.Factory Factory class

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	CSS_EPSILON CSS-Styles
protected static String	CSS_LINE CSS-Styles
private Element	elementLine The line element
private Element	elementPoint The drag handle element
private Element	elemText The label element
private double	epsilon The current epsilon value.
private DragableArea	eventarea Sensitive (clickable) area
private static String	NAME A short name characterizing this Visualizer.

Fields inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.optics.AbstractOPTICSVisualization

optics, plotheight, plotwidth

Fields inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization

context, layer, pendingRedraw, svgp, task

Constructor Summary

Constructors

Constructor and Description
OPTICSPlotCutVisualization(VisualizationTask task) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
private void	addCSSClasses() Adds the required CSS-Classes
void	destroy() Destroy the visualization.
boolean	duringDrag(org.w3c.dom.svg.SVGPoint start, org.w3c.dom.svg.SVGPoint end, Event evt, boolean inside) Method called during drags.
boolean	endDrag(org.w3c.dom.svg.SVGPoint start, org.w3c.dom.svg.SVGPoint end, Event evt, boolean inside) Method called when a drag was ended.
protected double	getEpsilonFromY(double y) Get epsilon from y-value
protected double	getYFromEpsilon(double epsilon) Get y-value from epsilon
protected void	incrementalRedraw() Redraw the visualization (maybe incremental).
protected void	redraw() Perform a full redraw.
boolean	startDrag(org.w3c.dom.svg.SVGPoint start, Event evt) Action to do on drag start.
void	unsetEpsilon() Reset the epsilon value.

Methods inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.optics.AbstractOPTICSVisualization

getClusterOrder, makeLayerElement

Methods inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization

contextChanged, getHeight, getLayer, getWidth, resultAdded, resultChanged, resultRemoved, synchronizedRedraw, testRedraw

Methods inherited from class java.lang.Object

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

Field Detail

NAME

private static final String NAME

A short name characterizing this Visualizer.

See Also:

Constant Field Values

CSS_LINE

protected static final String CSS_LINE

CSS-Styles

See Also:

Constant Field Values

CSS_EPSILON

protected static final String CSS_EPSILON

CSS-Styles

See Also:

Constant Field Values

epsilon

private double epsilon

The current epsilon value.

eventarea

private DragableArea eventarea

Sensitive (clickable) area

elemText

private Element elemText

The label element

elementLine

private Element elementLine

The line element

elementPoint

private Element elementPoint

The drag handle element

Constructor Detail

OPTICSPlotCutVisualization

public OPTICSPlotCutVisualization(VisualizationTask task)

Constructor.

Parameters:

task - Task

Method Detail

redraw

protected void redraw()

Description copied from class: AbstractVisualization

Perform a full redraw.

Specified by:

redraw in class AbstractVisualization

incrementalRedraw

protected void incrementalRedraw()

Description copied from class: AbstractVisualization

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

Overrides:

incrementalRedraw in class AbstractVisualization

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

getEpsilonFromY

protected double getEpsilonFromY(double y)

Get epsilon from y-value

Parameters:

y - y-Value

Returns:

epsilon

getYFromEpsilon

protected double getYFromEpsilon(double epsilon)

Get y-value from epsilon

Parameters:

epsilon - epsilon

Returns:

y-Value

startDrag

public boolean startDrag(org.w3c.dom.svg.SVGPoint start,
                Event evt)

Description copied from interface: DragableArea.DragListener

Action to do on drag start.

Specified by:

startDrag in interface DragableArea.DragListener

Parameters:

start - Point where the drag was started.

evt - The event object

Returns:

true to start the drag operation

duringDrag

public boolean duringDrag(org.w3c.dom.svg.SVGPoint start,
                 org.w3c.dom.svg.SVGPoint end,
                 Event evt,
                 boolean inside)

Description copied from interface: DragableArea.DragListener

Method called during drags.

Specified by:

duringDrag in interface DragableArea.DragListener

Parameters:

start - Drag starting point

end - Drag end point

evt - The event object

inside - Inside the tracked element

Returns:

true to continue the drag

endDrag

public boolean endDrag(org.w3c.dom.svg.SVGPoint start,
              org.w3c.dom.svg.SVGPoint end,
              Event evt,
              boolean inside)

Description copied from interface: DragableArea.DragListener

Method called when a drag was ended.

Specified by:

endDrag in interface DragableArea.DragListener

Parameters:

start - Drag starting point

end - Drag end point

evt - The event object

inside - Whether the end point was inside the area

Returns:

true to complete the drag

unsetEpsilon

public void unsetEpsilon()

Reset the epsilon value.

addCSSClasses

private void addCSSClasses()

Adds the required CSS-Classes