Module imagingbook.common

Package imagingbook.common.geometry.fitting.ellipse.utils

Class EllipseSampler

java.lang.Object

imagingbook.common.geometry.fitting.ellipse.utils.EllipseSampler

public class EllipseSampler
extends Object

Utility class for picking random points on a given ellipse.

Version:

2022/11/17

Constructor Summary

Constructors

Constructor	Description
EllipseSampler(GeometricEllipse ellipse)
EllipseSampler(GeometricEllipse ellipse, long seed)

Method Summary

Modifier and Type	Method	Description
Pnt2d[]	getPoints(int n, double startAngle, double arcAngle, double sigma)	Creates and returns an array of 2D points sampled on the ellipse associated with this EllipseSampler.

Methods inherited from class java.lang.Object

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

Constructor Details

EllipseSampler

public EllipseSampler(GeometricEllipse ellipse)

EllipseSampler

public EllipseSampler(GeometricEllipse ellipse,
 long seed)

Method Details

getPoints

public Pnt2d[] getPoints(int n,
 double startAngle,
 double arcAngle,
 double sigma)

Creates and returns an array of 2D points sampled on the ellipse associated with this EllipseSampler. Random Gaussian noise (with standard deviation sigma) is added to the individual x/y coordinates.

Parameters:

n - number of points

startAngle - initial angle (radians)

arcAngle - arc angle (radians)

sigma - amount of random noise

Returns:

an array of sample points