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

Class SelectionToolDotVisualization.Instance

java.lang.Object

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

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

de.lmu.ifi.dbs.elki.visualization.visualizers.scatterplot.selection.SelectionToolDotVisualization.Instance

All Implemented Interfaces:

DataStoreListener, ResultListener, DragableArea.DragListener, VisualizationListener, Visualization, EventListener

Enclosing class:

SelectionToolDotVisualization

public class SelectionToolDotVisualization.Instance
extends AbstractScatterplotVisualization
implements DragableArea.DragListener

Instance

Author:

Heidi Kolb

Field Summary

Fields

Modifier and Type	Field and Description
private static String	CSS_RANGEMARKER CSS class of the selection rectangle while selecting.
(package private) Element	etag Element for the rectangle to add listeners
(package private) Element	rtag Element for selection rectangle

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

proj, rel, sample

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

context, layer, svgp, task

Constructor Summary

Constructors

Constructor and Description
SelectionToolDotVisualization.Instance(VisualizationTask task, VisualizationPlot plot, double width, double height, Projection proj) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addCSSClasses(SVGPlot svgp) Adds the required CSS-Classes
private void	deleteChildren(Element container) Delete the children of the element
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.
void	fullRedraw() Request a full redrawing of the visualization.
private SelectionToolDotVisualization.Mode	getInputMode(Event evt) Get the current input mode, on each mouse event.
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.scatterplot.AbstractScatterplotVisualization

setupCanvas, setupCanvas, visualizationChanged

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

addListeners, contentChanged, destroy, getHeight, getLayer, getWidth, incrementalRedraw, resultAdded, resultChanged, resultRemoved

Methods inherited from class java.lang.Object

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

Field Detail

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.Instance

public SelectionToolDotVisualization.Instance(VisualizationTask task,
                                      VisualizationPlot plot,
                                      double width,
                                      double height,
                                      Projection proj)

Constructor.

Parameters:

task - Task

plot - Plot to draw to

width - Embedding width

height - Embedding height

proj - Projection

Method Detail

fullRedraw

public void fullRedraw()

Description copied from interface: Visualization

Request a full redrawing of the visualization.

Specified by:

fullRedraw in interface Visualization

Specified by:

fullRedraw 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