org.lcsim.fit.threepointcircle

Class ThreePointCircleFitter

java.lang.Object

org.lcsim.fit.threepointcircle.ThreePointCircleFitter

public class ThreePointCircleFitter
extends Object

A class to return the circle which passes through three points.

Author:

Norman Graf

Field Summary

Fields

Modifier and Type	Field and Description
private CircleFit	_fit
private static double[][]	a
private static double[][]	m

Constructor Summary

Constructors

Constructor and Description
ThreePointCircleFitter() Creates a new instance of ThreePointCircleFitter

Method Summary

Methods

Modifier and Type	Method and Description
private double	determinant(double[][] a, int n)
boolean	fit(double[] p1, double[] p2, double[] p3) Find the circle which passes through three points
CircleFit	getFit() Get the result of the fit.

Methods inherited from class java.lang.Object

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

Field Detail

_fit

private CircleFit _fit

a

private static double[][] a

m

private static double[][] m

Constructor Detail

ThreePointCircleFitter

public ThreePointCircleFitter()

Creates a new instance of ThreePointCircleFitter

Method Detail

fit

public boolean fit(double[] p1,
          double[] p2,
          double[] p3)

Find the circle which passes through three points

Parameters:

p1 - The first point.

p2 - The second point.

p3 - The third point.

Returns:

true if a circle can be found which passes through the points.

getFit

public CircleFit getFit()

Get the result of the fit.

Returns:

The Circle which passes through the points.

determinant

private double determinant(double[][] a,
                 int n)