de.lmu.ifi.dbs.elki.visualization.visualizers.vis2d
Class TreeMBRVisualization<NV extends NumberVector<NV,?>,N extends AbstractRStarTreeNode<N,E>,E extends SpatialEntry>

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.TreeMBRVisualization<NV,N,E>

Type Parameters:

NV - Type of the DatabaseObject being visualized.

N - Tree node type

E - Tree entry type

All Implemented Interfaces:

DataStoreListener, ResultListener, ContextChangeListener, Visualization, EventListener

public class TreeMBRVisualization<NV extends NumberVector<NV,?>,N extends AbstractRStarTreeNode<N,E>,E extends SpatialEntry>
extends P2DVisualization<NV>
implements DataStoreListener

Visualize the bounding rectangles of an R-Tree based index.

Nested Class Summary

static class

TreeMBRVisualization.Factory<NV extends NumberVector<NV,?>> Factory

Field Summary

protected boolean	fill Fill parameter.
static String	INDEX Generic tag to indicate the type of element.
static String	NAME A short name characterizing this Visualizer.
protected AbstractRStarTree<N,E>	tree The tree we visualize

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

TreeMBRVisualization(VisualizationTask task, boolean fill)
Constructor.

Method Summary

void	contentChanged(DataStoreEvent e) Invoked after objects of the datastore have been updated, inserted or removed in some way.
void	destroy() Destroy the visualization.
protected void	redraw() Perform a full redraw.
private void	visualizeRTreeEntry(SVGPlot svgp, Element layer, Projection2D proj, AbstractRStarTree<? extends N,E> rtree, E entry, int depth) Recursively draw the MBR rectangles.

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

contextChanged, 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

INDEX

public static final String INDEX

Generic tag to indicate the type of element. Used in IDs, CSS-Classes etc.

See Also:

Constant Field Values

NAME

public static final String NAME

A short name characterizing this Visualizer.

See Also:

Constant Field Values

fill

protected boolean fill

Fill parameter.

tree

protected AbstractRStarTree<N extends AbstractRStarTreeNode<N,E>,E extends SpatialEntry> tree

The tree we visualize

Constructor Detail

TreeMBRVisualization

public TreeMBRVisualization(VisualizationTask task,
                            boolean fill)

Constructor.

Parameters:

task - Visualization task

fill - Fill flag

Method Detail

redraw

protected void redraw()

Description copied from class: AbstractVisualization

Perform a full redraw.

Specified by:

redraw in class AbstractVisualization

visualizeRTreeEntry

private void visualizeRTreeEntry(SVGPlot svgp,
                                 Element layer,
                                 Projection2D proj,
                                 AbstractRStarTree<? extends N,E> rtree,
                                 E entry,
                                 int depth)

Recursively draw the MBR rectangles.

Parameters:

svgp - SVG Plot

layer - Layer

proj - Projection

rtree - Rtree to visualize

entry - Current entry

depth - Current depth

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

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