Class PunktScaler

java.lang.Object

org.openjump.core.attributeoperations.statistics.PunktScaler

All Implemented Interfaces:

ScaleChanger

public class PunktScaler
extends Object
implements ScaleChanger

class to scale the "coordinates" of a punkt object, often needed for statistical calculations. Scales the given "coordinates" to values between 0 and 1.

Author:

Ole Rahn, FH Osnabrück - University of Applied Sciences Osnabrück, Project: PIROL (2005), Subproject: Daten- und Wissensmanagement

See Also:

• modified: [sstein]: 16.Feb.2009 changed logger-entries to comments

Field Summary

Fields

Modifier and Type	Field	Description
protected int	dimension
protected double[]	mins
protected double[]	ranges

Constructor Summary

Constructors

Constructor	Description
PunktScaler(int dimension, double[] mins, double[] ranges)
PunktScaler(PirolPoint[] punktArray)

Method Summary

Modifier and Type	Method	Description
protected void	getValuesFromArray(PirolPoint[] array)
double	scale(double value, int dimension)
double	unScale(double value, int dimension)

Methods inherited from class Object

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

Field Details

dimension

protected int dimension

mins

protected double[] mins

ranges

protected double[] ranges

Constructor Details

PunktScaler

public PunktScaler(int dimension,
 double[] mins,
 double[] ranges)

PunktScaler

public PunktScaler(PirolPoint[] punktArray)

Method Details

getValuesFromArray

protected void getValuesFromArray(PirolPoint[] array)
                           throws Exception

Throws:

Exception

scale

public double scale(double value,
 int dimension)

Specified by:

scale in interface ScaleChanger

unScale

public double unScale(double value,
 int dimension)

Specified by:

unScale in interface ScaleChanger