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

Class KeyVisualization

java.lang.Object

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

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

All Implemented Interfaces:

VisualizationProcessor, VisFactory

public class KeyVisualization
extends AbstractVisFactory

Visualizer, displaying the key for a clustering. TODO: re-add automatic sizing depending on the number of clusters. TODO: also show in scatter plot detail view.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	KeyVisualization.Instance Instance

Field Summary

Fields

Modifier and Type	Field and Description
private static String	NAME Name for this visualizer.

Constructor Summary

Constructors

Constructor and Description
KeyVisualization()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	allowThumbnails(VisualizationTask task) Test whether to do a thumbnail or a full rendering.
protected static <M extends Model> int[]	findDepth(Clustering<M> c) Compute the size of the clustering.
private static <M extends Model> void	findDepth(Hierarchy<Cluster<M>> hier, Cluster<M> cluster, int[] size) Recursive depth computation.
protected static int	getPreferredColumns(double width, double height, int numc, double maxwidth) Compute the preferred number of columns.
Visualization	makeVisualization(VisualizationTask task, VisualizationPlot plot, double width, double height, Projection proj) Produce a visualization instance for the given task
void	processNewResult(VisualizerContext context, Object start) Add visualizers for the given result (tree) to the context.

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

makeVisualizationOrThumbnail

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

Name for this visualizer.

See Also:

Constant Field Values

Constructor Detail

KeyVisualization

public KeyVisualization()

Method Detail

processNewResult

public void processNewResult(VisualizerContext context,
                    Object start)

Description copied from interface: VisFactory

Add visualizers for the given result (tree) to the context.

Parameters:

context - Visualization context

start - Result to process

findDepth

protected static <M extends Model> int[] findDepth(Clustering<M> c)

Compute the size of the clustering.

Parameters:

c - Clustering

Returns:

Array storing the depth and the number of leaf nodes.

findDepth

private static <M extends Model> void findDepth(Hierarchy<Cluster<M>> hier,
                               Cluster<M> cluster,
                               int[] size)

Recursive depth computation.

Parameters:

hier - Hierarchy

cluster - Current cluster

size - Counting array.

getPreferredColumns

protected static int getPreferredColumns(double width,
                      double height,
                      int numc,
                      double maxwidth)

Compute the preferred number of columns.

Parameters:

width - Target width

height - Target height

numc - Number of clusters

maxwidth - Max width of entries

Returns:

Preferred number of columns

makeVisualization

public Visualization makeVisualization(VisualizationTask task,
                              VisualizationPlot plot,
                              double width,
                              double height,
                              Projection proj)

Description copied from interface: VisFactory

Produce a visualization instance for the given task

Specified by:

makeVisualization in interface VisFactory

Specified by:

makeVisualization in class AbstractVisFactory

Parameters:

task - Visualization task

plot - Plot

width - Width

height - Height

proj - Projection

Returns:

Visualization

allowThumbnails

public boolean allowThumbnails(VisualizationTask task)

Description copied from class: AbstractVisFactory

Test whether to do a thumbnail or a full rendering. Override this with "false" to disable thumbnails!

Overrides:

allowThumbnails in class AbstractVisFactory

Parameters:

task - Task requested