databionics.esom.renderer.background
Class SmoothedDataHistoRenderer

java.lang.Object
  databionics.esom.renderer.background.BackgroundRenderer
      databionics.esom.renderer.background.SmoothedDataHistoRenderer

All Implemented Interfaces:

BmChangeListener, LrnChangeListener, ParamChangeListener, WtsChangeListener

public class SmoothedDataHistoRenderer
extends BackgroundRenderer

Smoothed Data Histogram (SDH) background renderer as proposed by Pampalk. Each neuron acts as a histogram bin. Each data point throws decreasing weights in the k closest neurons bins.

Field Summary

protected static org.apache.log4j.Logger	log interface to log4j system
protected int	smoothFactor the smooth parameter

Fields inherited from class databionics.esom.renderer.background.BackgroundRenderer

bmChanged, cacheMatrix, lrnChanged, paramChanged, renderer, wtsChanged

Constructor Summary

SmoothedDataHistoRenderer()
Standard constructor

Method Summary

int	getSmoothFactor() Get the smooth parameter
void	init() Optional initialization of background renderer.
boolean	isColorBackground() Whether this background renderer returns color matrix.
cern.colt.matrix.DoubleMatrix2D	render(Renderer renderer) Calculate the height above each neuron with the SDH method.
void	setSmoothFactor(int smoothFactor) Set the smooth parameter

Methods inherited from class databionics.esom.renderer.background.BackgroundRenderer

bmChanged, getCaption, getRenderer, lrnChanged, paramChanged, resetCache, setRenderer, wtsChanged

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final org.apache.log4j.Logger log

interface to log4j system

smoothFactor

protected int smoothFactor

the smooth parameter

Constructor Detail

SmoothedDataHistoRenderer

public SmoothedDataHistoRenderer()

Standard constructor

Method Detail

render

public cern.colt.matrix.DoubleMatrix2D render(Renderer renderer)

Calculate the height above each neuron with the SDH method.

Specified by:

render in class BackgroundRenderer

Parameters:

renderer - The invoking Renderer

isColorBackground

public boolean isColorBackground()

Description copied from class: BackgroundRenderer

Whether this background renderer returns color matrix. If false a height matrix is returned.

Specified by:

isColorBackground in class BackgroundRenderer

Returns:

true if this BackgroundRenderer returns colors, false if heights

init

public void init()

Description copied from class: BackgroundRenderer

Optional initialization of background renderer.

Overrides:

init in class BackgroundRenderer

getSmoothFactor

public int getSmoothFactor()

Get the smooth parameter

setSmoothFactor

public void setSmoothFactor(int smoothFactor)

Set the smooth parameter