CentralMomentsCalculator (LCSim 3.1.7 API)

java.lang.Object
- org.lcsim.math.moments.CentralMomentsCalculator

```
public class CentralMomentsCalculator
extends Object
```
calculates rotational and translational invariant moments of spatial distributions

Author:

Norman Graf

Field Summary

Fields
Modifier and Type	Field and Description
`private double[]`	`_dircos`
`private double[]`	`_eigenvalues`
`private Matrix`	`_eigenvectors`
`private Matrix`	`_tensor`
`private double`	`J1`
`private double`	`J2`
`private double`	`J3`
`private double`	`m000`
`private double`	`m001`
`private double`	`m002`
`private double`	`m010`
`private double`	`m011`
`private double`	`m020`
`private double`	`m100`
`private double`	`m101`
`private double`	`m110`
`private double`	`m200`
`private double`	`xc`
`private double`	`yc`
`private double`	`zc`

Constructor Summary

Constructors
Constructor and Description

CentralMomentsCalculator()
Creates a new instance of CentralMomentsCalculator

Constructors
Constructor and Description
`CentralMomentsCalculator()` Creates a new instance of CentralMomentsCalculator

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`calculateMoments(double[] x, double[] y, double[] z, double[] w)`
`double[]`	`centroid()`
`double[]`	`centroidVariance()`
`double[]`	`directionCosines()`
`double[]`	`eigenvalues()`
`double[]`	`invariants()`
`(package private) void`	`reset()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

m000
```
private double m000
```

m100
```
private double m100
```

m010
```
private double m010
```

m001
```
private double m001
```

m110
```
private double m110
```

m101
```
private double m101
```

m011
```
private double m011
```

m200
```
private double m200
```

m020
```
private double m020
```

m002
```
private double m002
```

xc
```
private double xc
```

yc
```
private double yc
```

zc
```
private double zc
```

J1
```
private double J1
```

J2
```
private double J2
```

J3
```
private double J3
```

_tensor
```
private Matrix _tensor
```

_eigenvalues
```
private double[] _eigenvalues
```

_eigenvectors
```
private Matrix _eigenvectors
```

_dircos
```
private double[] _dircos
```

Constructor Detail
- CentralMomentsCalculator
```
public CentralMomentsCalculator()
```
  Creates a new instance of CentralMomentsCalculator

Method Detail

calculateMoments

public void calculateMoments(double[] x,
                    double[] y,
                    double[] z,
                    double[] w)

eigenvalues
```
public double[] eigenvalues()
```

directionCosines
```
public double[] directionCosines()
```

centroid
```
public double[] centroid()
```

centroidVariance
```
public double[] centroidVariance()
```

invariants
```
public double[] invariants()
```

reset
```
void reset()
```

Class CentralMomentsCalculator

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

m000

m100

m010

m001

m110

m101

m011

m200

m020

m002

xc

yc

zc

J1

J2

J3

_tensor

_eigenvalues

_eigenvectors

_dircos

Constructor Detail

CentralMomentsCalculator

Method Detail

calculateMoments

eigenvalues

directionCosines

centroid

centroidVariance

invariants

reset