georegression.fitting.ellipse

Class CovarianceToEllipse_F64

java.lang.Object

georegression.fitting.ellipse.CovarianceToEllipse_F64

public class CovarianceToEllipse_F64
extends java.lang.Object

Computes a containment ellipse given a covariance

Constructor Summary

Constructors

Constructor and Description
CovarianceToEllipse_F64()

Method Summary

Modifier and Type	Method and Description
double	getAngle()
double	getMajorAxis()
Vector2D_F64	getMajorVector()
double	getMinorAxis()
Vector2D_F64	getMinorVector()
boolean	setCovariance(double a11, double a12, double a22) Specifies the covariance matrix.
void	setNumStdev(double numStdev)

Methods inherited from class java.lang.Object

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

Constructor Detail

CovarianceToEllipse_F64

public CovarianceToEllipse_F64()

Method Detail

setNumStdev

public void setNumStdev(double numStdev)

setCovariance

public boolean setCovariance(double a11,
                             double a12,
                             double a22)

Specifies the covariance matrix. Q = [a11 a12; a12 a22]

Parameters:

a11 - element in covariance matrix.

a12 - element in covariance matrix.

a22 - element in covariance matrix.

Returns:

true if it was successful or false if something went wrong

getMajorVector

public Vector2D_F64 getMajorVector()

Returns:

Vector which defines the major axis

getMinorVector

public Vector2D_F64 getMinorVector()

Returns:

Vector which defines the minor axis

getAngle

public double getAngle()

Returns:

Angle between the major axis and the x-axis

getMajorAxis

public double getMajorAxis()

Returns:

Length of the major axis

getMinorAxis

public double getMinorAxis()

Returns:

Length of the minor axis