de.unihalle.informatik.MiToBo.core.datatypes

Class MTBQuadraticCurve2D.DistanceTargetFunction

java.lang.Object

de.jstacs.algorithms.optimization.DifferentiableFunction

de.unihalle.informatik.MiToBo.core.datatypes.MTBQuadraticCurve2D.DistanceTargetFunction

All Implemented Interfaces:

de.jstacs.algorithms.optimization.Function

Enclosing class:

MTBQuadraticCurve2D

private class MTBQuadraticCurve2D.DistanceTargetFunction
extends de.jstacs.algorithms.optimization.DifferentiableFunction

Distance function for a point's distance to an ellipse.

This class implements the following target function:

and its derivative

Author:

moeller

Field Summary

Fields

Modifier and Type	Field and Description
private Point2D.Double	point Point for which to calculate the distance to the ellipse.

Constructor Summary

Constructors

Constructor and Description
DistanceTargetFunction(Point2D.Double p) Default constructor.

Method Summary

Modifier and Type	Method and Description
double	evaluateFunction(double[] angle)
double[]	evaluateGradientOfFunction(double[] angle)
int	getDimensionOfScope()

Methods inherited from class de.jstacs.algorithms.optimization.DifferentiableFunction

findOneDimensionalMin

Methods inherited from class java.lang.Object

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

Field Detail

point

private Point2D.Double point

Point for which to calculate the distance to the ellipse.

Constructor Detail

DistanceTargetFunction

public DistanceTargetFunction(Point2D.Double p)

Default constructor.

Parameters:

p - Point to consider.

Method Detail

evaluateFunction

public double evaluateFunction(double[] angle)

getDimensionOfScope

public int getDimensionOfScope()

evaluateGradientOfFunction

public double[] evaluateGradientOfFunction(double[] angle)

Specified by:

evaluateGradientOfFunction in class de.jstacs.algorithms.optimization.DifferentiableFunction