java.lang.Object
- elki.visualization.silhouette.SilhouettePlot

```
public class SilhouettePlot
extends java.lang.Object
```
Class to produce an Silhouette plot image.

Since:

0.8.0

Author:

Robert Gehde

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) StylingPolicy`	`colors`	Color adapter to use
`(package private) int`	`height`	Height of plot
`private static Logging`	`LOG`	Logger
`private static int`	`MAX_HEIGHT`	Minimum and maximum vertical resolution.
`private static int`	`MIN_HEIGHT`	Minimum and maximum vertical resolution.
`protected java.awt.image.RenderedImage`	`plot`	The Silhouette plot.
`protected int`	`plotnum`	The plot number for Batik
`(package private) double`	`ratio`	Ratio of plot
`(package private) LinearScale`	`scale`	Scale to use
`(package private) DoubleDBIDList[]`	`silhouettes`	The silhouette values.
`(package private) int`	`width`	Width of plot

Constructor Summary

Constructors
Constructor Description

SilhouettePlot(DoubleDBIDList[] silhouettes, StylingPolicy colors)
Constructor, with automatic distance adapter detection.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected LinearScale`	`computeScale(DoubleDBIDList[] silhouettes)`	Compute the scale (value range)
`void`	`forgetRenderedImage()`	Free memory used by rendered image.
`int`	`getHeight()`
`java.lang.String`	`getLongName()`
`java.awt.image.RenderedImage`	`getPlot()`	Get the Silhouette plot.
`double`	`getRatio()`	Get width-to-height ratio of image.
`LinearScale`	`getScale()`
`java.lang.String`	`getShortName()`
`java.lang.String`	`getSVGPlotURI()`	Get the SVG registered plot number
`int`	`getWidth()`
`static SilhouettePlot`	`plotForSilhouetteValues(DoubleDBIDList[] silhouettes, VisualizerContext context)`	Static method to find a silhouette plot for a result, or to create a new one using the given context.
`void`	`replot()`	Trigger a redraw of the Silhouette plot
`double`	`scaleFromPixel(double y)`	Scale a pixel value to a silhouette value
`int`	`scaleToPixel(double silhouette)`	Scale a silhouette score to a pixel value.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LOG
```
private static final Logging LOG
```
    Logger
  - MIN_HEIGHT
```
private static final int MIN_HEIGHT
```
    Minimum and maximum vertical resolution.
    
    See Also:
    
    Constant Field Values
  - MAX_HEIGHT
```
private static final int MAX_HEIGHT
```
    Minimum and maximum vertical resolution.
    
    See Also:
    
    Constant Field Values
  - scale
```
LinearScale scale
```
    Scale to use
  - width
```
int width
```
    Width of plot
  - height
```
int height
```
    Height of plot
  - ratio
```
double ratio
```
    Ratio of plot
  - silhouettes
```
final DoubleDBIDList[] silhouettes
```
    The silhouette values.
  - colors
```
final StylingPolicy colors
```
    Color adapter to use
  - plot
```
protected java.awt.image.RenderedImage plot
```
    The Silhouette plot.
  - plotnum
```
protected int plotnum
```
    The plot number for Batik
- Constructor Detail
  - SilhouettePlot
```
public SilhouettePlot(DoubleDBIDList[] silhouettes,
                      StylingPolicy colors)
```
    Constructor, with automatic distance adapter detection.
    
    Parameters:
    
    silhouettes - silhouette values to plot.
    
    colors - Coloring strategy
- Method Detail
  - replot
```
public void replot()
```
    Trigger a redraw of the Silhouette plot
  - scaleToPixel
```
public int scaleToPixel(double silhouette)
```
    Scale a silhouette score to a pixel value.
    
    Parameters:
    
    silhouette - silhouette
    
    Returns:
    
    Pixel value.
  - scaleFromPixel
```
public double scaleFromPixel(double y)
```
    Scale a pixel value to a silhouette value
    
    Parameters:
    
    y - Pixel value
    
    Returns:
    
    silhouette
  - computeScale
```
protected LinearScale computeScale(DoubleDBIDList[] silhouettes)
```
    Compute the scale (value range)
    
    Parameters:
    
    silhouettes - Silhouette values to process
    
    Returns:
    
    Scale for value range of silhouette values
  - getScale
```
public LinearScale getScale()
```
    Returns:
    
    the scale
  - getWidth
```
public int getWidth()
```
    Returns:
    
    the width
  - getHeight
```
public int getHeight()
```
    Returns:
    
    the height
  - getRatio
```
public double getRatio()
```
    Get width-to-height ratio of image.
    
    Returns:
    
    width / height
  - getPlot
```
public java.awt.image.RenderedImage getPlot()
```
    Get the Silhouette plot.
    
    Returns:
    
    plot image
  - forgetRenderedImage
```
public void forgetRenderedImage()
```
    Free memory used by rendered image.
  - getSVGPlotURI
```
public java.lang.String getSVGPlotURI()
```
    Get the SVG registered plot number
    
    Returns:
    
    Plot URI
  - getLongName
```
public java.lang.String getLongName()
```
  - getShortName
```
public java.lang.String getShortName()
```
  - plotForSilhouetteValues
```
public static SilhouettePlot plotForSilhouetteValues(DoubleDBIDList[] silhouettes,
                                                     VisualizerContext context)
```
    Static method to find a silhouette plot for a result, or to create a new one using the given context.
    
    Parameters:
    
    silhouettes - silhouette values
    
    context - Context (for colors and reference clustering)
    
    Returns:
    
    New or existing silhouette plot

Class SilhouettePlot

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

LOG

MIN_HEIGHT

MAX_HEIGHT

scale

width

height

ratio

silhouettes

colors

plot

plotnum

Constructor Detail

SilhouettePlot

Method Detail

replot

scaleToPixel

scaleFromPixel

computeScale

getScale

getWidth

getHeight

getRatio

getPlot

forgetRenderedImage

getSVGPlotURI

getLongName

getShortName

plotForSilhouetteValues