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

Class DensityEstimationOverlay.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.density.DensityEstimationOverlay.Instance

All Implemented Interfaces:

DataStoreListener, ResultListener, VisualizationListener, Visualization, EventListener

Enclosing class:

DensityEstimationOverlay

public class DensityEstimationOverlay.Instance
extends AbstractScatterplotVisualization

Instance for a particular data set.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
private BufferedImage	img The actual image
private int	resolution Density map resolution

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

Method Summary

Methods

Modifier and Type	Method and Description
void	fullRedraw() Request a full redrawing of the visualization.
private double[]	initializeBandwidth(double[][] data)
private void	renderImage()
private int	unflip(int binarySearch)

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

resolution

private int resolution

Density map resolution

img

private BufferedImage img

The actual image

Constructor Detail

DensityEstimationOverlay.Instance

public DensityEstimationOverlay.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

initializeBandwidth

@Reference(authors="D. W. Scott",
           title="Multivariate density estimation: Theory, Practice, and Visualization",
           booktitle="Multivariate Density Estimation: Theory, Practice, and Visualization",
           url="http://dx.doi.org/10.1002/9780470316849")
private double[] initializeBandwidth(double[][] data)

renderImage

private void renderImage()

unflip

private int unflip(int binarySearch)