org.orekit.utils

Class FieldLegendrePolynomials<T extends org.hipparchus.CalculusFieldElement<T>>

java.lang.Object

org.orekit.utils.FieldLegendrePolynomials<T>

Type Parameters:

T - type of the field elements

public class FieldLegendrePolynomials<T extends org.hipparchus.CalculusFieldElement<T>>
extends Object

Computes the P_nm(t) coefficients.

The computation of the Legendre polynomials is performed following: Heiskanen and Moritz, Physical Geodesy, 1967, eq. 1-62

Since:

11.0

Author:

Bryan Cazabonne

Constructor Summary

Constructors

Constructor and Description
FieldLegendrePolynomials(int degree, int order, T t) Create Legendre polynomials for the given degree and order.

Method Summary

Modifier and Type	Method and Description
T	getPnm(int n, int m) Return the coefficient Pnm.

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldLegendrePolynomials

public FieldLegendrePolynomials(int degree,
                                int order,
                                T t)

Create Legendre polynomials for the given degree and order.

Parameters:

degree - degree of the spherical harmonics

order - order of the spherical harmonics

t - argument for polynomials calculation

Method Detail

getPnm

public T getPnm(int n,
                int m)

Return the coefficient P_nm.

Parameters:

n - index

m - index

Returns:

The coefficient P_nm