georegression.fitting.ellipse

Class CovarianceToEllipse_F32

java.lang.Object

georegression.fitting.ellipse.CovarianceToEllipse_F32

public class CovarianceToEllipse_F32
extends java.lang.Object

Computes a containment ellipse given a covariance

Constructor Summary

Constructors

Constructor and Description
CovarianceToEllipse_F32()

Method Summary

Modifier and Type	Method and Description
float	getAngle()
float	getMajorAxis()
Vector2D_F32	getMajorVector()
float	getMinorAxis()
Vector2D_F32	getMinorVector()
boolean	setCovariance(float a11, float a12, float a22) Specifies the covariance matrix.
void	setNumStdev(float numStdev)

Methods inherited from class java.lang.Object

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

Constructor Detail

CovarianceToEllipse_F32

public CovarianceToEllipse_F32()

Method Detail

setNumStdev

public void setNumStdev(float numStdev)

setCovariance

public boolean setCovariance(float a11,
                             float a12,
                             float 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_F32 getMajorVector()

Returns:

Vector which defines the major axis

getMinorVector

public Vector2D_F32 getMinorVector()

Returns:

Vector which defines the minor axis

getAngle

public float getAngle()

Returns:

Angle between the major axis and the x-axis

getMajorAxis

public float getMajorAxis()

Returns:

Length of the major axis

getMinorAxis

public float getMinorAxis()

Returns:

Length of the minor axis