ij.measure

Class SplineFitter

java.lang.Object

ij.measure.SplineFitter

public class SplineFitter
extends java.lang.Object

This class fits a spline function to a set of points. It is based on the InitSpline() and EvalSine() functions from XY (http://www.trilon.com/xv/), an interactive image manipulation program for the X Window System written by John Bradley. Eric Kischell (keesh@ieee.org) converted these functions to Java and integrated them into the PolygonRoi class.

Constructor Summary

Constructors

Constructor and Description
SplineFitter(float[] x, float[] y, int n)
SplineFitter(float[] x, float[] y, int n, boolean closed) For closed curves: the first and last y value should be identical; internally, a periodic continuation with a few will be used at both ends
SplineFitter(int[] x, int[] y, int n)

Method Summary

Modifier and Type	Method and Description
double	evalSpline(double xp) Evalutes spline function at given point
double	evalSpline(float[] x, float[] y, int n, double xp)
double	evalSpline(int[] x, int[] y, int n, double xp)

Methods inherited from class java.lang.Object

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

Constructor Detail

SplineFitter

public SplineFitter(int[] x,
                    int[] y,
                    int n)

SplineFitter

public SplineFitter(float[] x,
                    float[] y,
                    int n,
                    boolean closed)

For closed curves: the first and last y value should be identical; internally, a periodic continuation with a few will be used at both ends

SplineFitter

public SplineFitter(float[] x,
                    float[] y,
                    int n)

Method Detail

evalSpline

public double evalSpline(double xp)

Evalutes spline function at given point

evalSpline

public double evalSpline(int[] x,
                         int[] y,
                         int n,
                         double xp)

evalSpline

public double evalSpline(float[] x,
                         float[] y,
                         int n,
                         double xp)