Package com.irurueta.navigation

Class Accuracy2D

java.lang.Object

com.irurueta.navigation.Accuracy<com.irurueta.geometry.Accuracy2D>

com.irurueta.navigation.Accuracy2D

public class Accuracy2D
extends Accuracy<com.irurueta.geometry.Accuracy2D>

Contains methods to convert covariance matrices into ellipses representing accuracy with requested confidence.

Field Summary

Fields inherited from class com.irurueta.navigation.Accuracy

internalAccuracy

Constructor Summary

Constructors

Constructor	Description
Accuracy2D()	Constructor.
Accuracy2D(double confidence)	Constructor.
Accuracy2D(com.irurueta.algebra.Matrix covarianceMatrix)	Constructor.
Accuracy2D(com.irurueta.algebra.Matrix covarianceMatrix, double confidence)	Constructor.
Accuracy2D(com.irurueta.geometry.Accuracy2D internalAccuracy)	Constructor.

Method Summary

Modifier and Type	Method	Description
com.irurueta.geometry.Ellipse	toEllipse()	Converts provided covariance matrix into a 2D ellipse taking into account current confidence and standard deviation factor.

Methods inherited from class com.irurueta.navigation.Accuracy

getAverageAccuracy, getAverageAccuracyMeters, getConfidence, getCovarianceMatrix, getLargestAccuracy, getLargestAccuracyMeters, getNumberOfDimensions, getSmallestAccuracy, getSmallestAccuracyMeters, getStandardDeviationFactor, setConfidence, setCovarianceMatrix, setStandardDeviationFactor

Methods inherited from class java.lang.Object

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

Constructor Details

Accuracy2D

public Accuracy2D()

Constructor.

Accuracy2D

public Accuracy2D(com.irurueta.algebra.Matrix covarianceMatrix)
           throws com.irurueta.algebra.NonSymmetricPositiveDefiniteMatrixException

Constructor.

Parameters:

covarianceMatrix - covariance matrix to be set. Must be 2x2 and positive definite.

Throws:

IllegalArgumentException - if provided matrix is not square (it must also be positive definite to be properly converted to an ellipse).

com.irurueta.algebra.NonSymmetricPositiveDefiniteMatrixException - if provided matrix is not symmetric and positive definite.

Accuracy2D

public Accuracy2D(double confidence)

Constructor.

Parameters:

confidence - confidence of provided accuracy of an estimated position.

Throws:

IllegalArgumentException - if provided value is not within 0 and 1.

Accuracy2D

public Accuracy2D(com.irurueta.algebra.Matrix covarianceMatrix,
 double confidence)
           throws com.irurueta.algebra.NonSymmetricPositiveDefiniteMatrixException

Constructor.

Parameters:

covarianceMatrix - covariance matrix to be set. Must be 2x2 and positive definite.

confidence - confidence of provided accuracy of an estimated position.

Throws:

IllegalArgumentException - if provided matrix is not square (it must also be positive definite to be properly converted to an ellipse), or if provided confidence value is not within 0 and 1.

com.irurueta.algebra.NonSymmetricPositiveDefiniteMatrixException - if provided matrix is not symmetric and positive definite.

Accuracy2D

Accuracy2D(com.irurueta.geometry.Accuracy2D internalAccuracy)

Constructor.

Parameters:

internalAccuracy - internal accuracy to be set.

Method Details

toEllipse

public com.irurueta.geometry.Ellipse toEllipse()
                                        throws com.irurueta.geometry.InvalidRotationMatrixException

Converts provided covariance matrix into a 2D ellipse taking into account current confidence and standard deviation factor.

Returns:

ellipse representing accuracy of covariance matrix with current confidence and standard deviation factor.

Throws:

NullPointerException - if covariance matrix has not been provided yet.

com.irurueta.geometry.InvalidRotationMatrixException - if rotation cannot be properly determined.