Package org.anchoranalysis.plugin.image.feature.bean.object.single.moments

Class PrincipalAxisLength

Object

AnchorBean<Feature<FeatureInputSingleObject>>

InitializableBean<Feature<FeatureInputSingleObject>,FeatureInitialization>

Feature<FeatureInputSingleObject>

FeatureSingleObject

ImageMomentsBase

SpecificAxisBase

PrincipalAxisLength

public class PrincipalAxisLength
extends SpecificAxisBase

The length of a principal-axis (as defined by Image Moments).

Author:

Owen Feehan

Constructor Summary

Constructors

Constructor	Description
PrincipalAxisLength()

Method Summary

Modifier and Type	Method	Description
protected double	calculateFromSpecificMoment(EigenvalueAndVector moment)	Calculates the result for the specific moment identified by index.
protected String	errorMessageIfTooFewPixels()	Generates an error message when there are too few pixels to calculate moments.

Methods inherited from class org.anchoranalysis.plugin.image.feature.bean.object.single.moments.SpecificAxisBase

calculateFromAllMoments, getIndex, setIndex

Methods inherited from class org.anchoranalysis.plugin.image.feature.bean.object.single.moments.ImageMomentsBase

calculate, getValueIfTooFewVoxels, isSuppressZ, setSuppressZ, setValueIfTooFewVoxels

Methods inherited from class org.anchoranalysis.image.feature.bean.object.single.FeatureSingleObject

inputType

Methods inherited from class org.anchoranalysis.feature.bean.Feature

assignTo, beforeCalc, calculateCheckInitialized, castAs, createListChildFeatures, describeBean, describeParameters, descriptionLong, duplicateChangeName, getCustomName, getFriendlyName, onInitialization, setCustomName, toString

Methods inherited from class org.anchoranalysis.bean.initializable.InitializableBean

getInitialization, getLogger, getPropertyInitializer, initialize, initializeRecursive, initRecursiveWithInitializer, isInitialized

Methods inherited from class org.anchoranalysis.bean.AnchorBean

checkMisconfigured, describeChildren, duplicateBean, fields, findFieldsOfClass, getBeanName, getLocalPath, localise

Methods inherited from class java.lang.Object

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

Constructor Details

PrincipalAxisLength

public PrincipalAxisLength()

Method Details

calculateFromSpecificMoment

protected double calculateFromSpecificMoment(EigenvalueAndVector moment)
                                      throws FeatureCalculationException

Description copied from class: SpecificAxisBase

Calculates the result for the specific moment identified by index.

Specified by:

calculateFromSpecificMoment in class SpecificAxisBase

Parameters:

moment - the EigenvalueAndVector for the specific moment

Returns:

the calculated result as a Double

Throws:

FeatureCalculationException - if the calculation fails

errorMessageIfTooFewPixels

protected String errorMessageIfTooFewPixels()
                                     throws FeatureCalculationException

Description copied from class: ImageMomentsBase

Generates an error message when there are too few pixels to calculate moments.

Specified by:

errorMessageIfTooFewPixels in class ImageMomentsBase

Returns:

the error message as a String

Throws:

FeatureCalculationException - if generating the error message fails