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

Class ClusterHullVisualization.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.cluster.ClusterHullVisualization.Instance

All Implemented Interfaces:

DataStoreListener, ResultListener, VisualizationListener, Visualization, EventListener

Enclosing class:

ClusterHullVisualization

public class ClusterHullVisualization.Instance
extends AbstractScatterplotVisualization

Instance.

Author:

Robert Rödler, Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
static String	CLUSTERHULL Generic tags to indicate the type of element.

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
Instance(VisualizationTask task, VisualizationPlot plot, double width, double height, Projection proj) Constructor

Method Summary

Modifier and Type	Method and Description
private void	addCSSClasses(SVGPlot svgp, int clusterID, double opac) Adds the required CSS-Classes
private double	addRecursively(ArrayList<Vector> hull, Hierarchy<Cluster<Model>> hier, Cluster<Model> clus) Recursively add a cluster and its children.
private DoubleObjPair<Polygon>	buildHullsRecursively(Cluster<Model> clu, Hierarchy<Cluster<Model>> hier, Map<Object,DoubleObjPair<Polygon>> hulls) Recursively step through the clusters to build the hulls.
void	fullRedraw() Request a full redrawing of the visualization.

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

CLUSTERHULL

public static final String CLUSTERHULL

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

See Also:

Constant Field Values

Constructor Detail

Instance

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

Constructor

Parameters:

task - VisualizationTask

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

buildHullsRecursively

private DoubleObjPair<Polygon> buildHullsRecursively(Cluster<Model> clu,
                                                     Hierarchy<Cluster<Model>> hier,
                                                     Map<Object,DoubleObjPair<Polygon>> hulls)

Recursively step through the clusters to build the hulls.

Parameters:

clu - Current cluster

hier - Clustering hierarchy

hulls - Hull map

addRecursively

private double addRecursively(ArrayList<Vector> hull,
                              Hierarchy<Cluster<Model>> hier,
                              Cluster<Model> clus)

Recursively add a cluster and its children.

Parameters:

hull - Hull to add to

hier - Cluster hierarchy

clus - Current cluster

Returns:

Weight for visualization

addCSSClasses

private void addCSSClasses(SVGPlot svgp,
                           int clusterID,
                           double opac)

Adds the required CSS-Classes

Parameters:

svgp - SVG-Plot