de.lmu.ifi.dbs.elki.visualization.visualizers.vis2d
Class SelectionToolDotVisualization<NV extends NumberVector<NV,?>>

java.lang.Object
  de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization
      de.lmu.ifi.dbs.elki.visualization.visualizers.vis2d.P2DVisualization<NV>
          de.lmu.ifi.dbs.elki.visualization.visualizers.vis2d.SelectionToolDotVisualization<NV>

Type Parameters:

NV - vector type

All Implemented Interfaces:

ResultListener, DragableArea.DragListener, ContextChangeListener, Visualization, EventListener

public class SelectionToolDotVisualization<NV extends NumberVector<NV,?>>
extends P2DVisualization<NV>
implements DragableArea.DragListener

Tool-Visualization for the tool to select objects

Nested Class Summary

static class	SelectionToolDotVisualization.Factory<NV extends NumberVector<NV,?>> Factory for tool visualizations for selecting objects
private static class	SelectionToolDotVisualization.Mode Input modes

Field Summary

private static String	CSS_RANGEMARKER CSS class of the selection rectangle while selecting.
(package private) Element	etag Element for the rectangle to add listeners
private static String	NAME A short name characterizing this Visualizer.
(package private) Element	rtag Element for selection rectangle

Fields inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.vis2d.P2DVisualization

proj, rel

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

context, layer, pendingRedraw, svgp, task

Constructor Summary

SelectionToolDotVisualization(VisualizationTask task)
Constructor.

Method Summary

protected void	addCSSClasses(SVGPlot svgp) Adds the required CSS-Classes
void	contextChanged(ContextChangedEvent e) Method called on context changes (e.g. projection changes).
private void	deleteChildren(Element container) Delete the children of the element
void	destroy() Destroy the visualization.
boolean	duringDrag(org.w3c.dom.svg.SVGPoint startPoint, org.w3c.dom.svg.SVGPoint dragPoint, Event evt, boolean inside) Method called during drags.
boolean	endDrag(org.w3c.dom.svg.SVGPoint startPoint, org.w3c.dom.svg.SVGPoint dragPoint, Event evt, boolean inside) Method called when a drag was ended.
private SelectionToolDotVisualization.Mode	getInputMode(Event evt) Get the current input mode, on each mouse event.
protected void	redraw() Perform a full redraw.
boolean	startDrag(org.w3c.dom.svg.SVGPoint startPoint, Event evt) Action to do on drag start.
private void	updateSelection(SelectionToolDotVisualization.Mode mode, Projection2D proj, org.w3c.dom.svg.SVGPoint p1, org.w3c.dom.svg.SVGPoint p2) Updates the selection in the context.

Methods inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.vis2d.P2DVisualization

setupCanvas

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

getHeight, getLayer, getWidth, incrementalRedraw, 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_RANGEMARKER

private static final String CSS_RANGEMARKER

CSS class of the selection rectangle while selecting.

See Also:

Constant Field Values

rtag

Element rtag

Element for selection rectangle

etag

Element etag

Element for the rectangle to add listeners

Constructor Detail

SelectionToolDotVisualization

public SelectionToolDotVisualization(VisualizationTask task)

Constructor.

Parameters:

task - Task

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

contextChanged

public void contextChanged(ContextChangedEvent e)

Description copied from interface: ContextChangeListener

Method called on context changes (e.g. projection changes). Usually, this should trigger a redraw!

Specified by:

contextChanged in interface ContextChangeListener

Overrides:

contextChanged in class AbstractVisualization

Parameters:

e - Change event

redraw

protected void redraw()

Description copied from class: AbstractVisualization

Perform a full redraw.

Specified by:

redraw in class AbstractVisualization

deleteChildren

private void deleteChildren(Element container)

Delete the children of the element

Parameters:

container - SVG-Element

startDrag

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

Description copied from interface: DragableArea.DragListener

Action to do on drag start.

Specified by:

startDrag in interface DragableArea.DragListener

Parameters:

startPoint - 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 startPoint,
                          org.w3c.dom.svg.SVGPoint dragPoint,
                          Event evt,
                          boolean inside)

Description copied from interface: DragableArea.DragListener

Method called during drags.

Specified by:

duringDrag in interface DragableArea.DragListener

Parameters:

startPoint - Drag starting point

dragPoint - 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 startPoint,
                       org.w3c.dom.svg.SVGPoint dragPoint,
                       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:

startPoint - Drag starting point

dragPoint - Drag end point

evt - The event object

inside - Whether the end point was inside the area

Returns:

true to complete the drag

getInputMode

private SelectionToolDotVisualization.Mode getInputMode(Event evt)

Get the current input mode, on each mouse event.

Parameters:

evt - Mouse event.

Returns:

current input mode

updateSelection

private void updateSelection(SelectionToolDotVisualization.Mode mode,
                             Projection2D proj,
                             org.w3c.dom.svg.SVGPoint p1,
                             org.w3c.dom.svg.SVGPoint p2)

Updates the selection in the context.

Parameters:

mode - Input mode

proj -

p1 - first point of the selected rectangle

p2 - second point of the selected rectangle

addCSSClasses

protected void addCSSClasses(SVGPlot svgp)

Adds the required CSS-Classes

Parameters:

svgp - SVG-Plot