fr.cnes.sirius.patrius.math.analysis.polynomials

Interface DatePolynomialFunctionInterface

All Superinterfaces:

Serializable, UnivariateDateFunction

All Known Implementing Classes:

DatePolynomialChebyshevFunction, DatePolynomialFunction

public interface DatePolynomialFunctionInterface
extends UnivariateDateFunction

Represents an interface for polynomial functions of date.

Since:

4.11

Version:

$Id$

Author:

Alice Latourte

Method Summary

Modifier and Type	Method and Description
default double	dateToDouble(AbsoluteDate date) Get the time as double corresponding to the given AbsoluteDate.
default AbsoluteDate	doubleToDate(double time) Get the AbsoluteDate corresponding to the given time as double.
static AbsoluteDate	getAbsoluteDateFromDoubleDate(AbsoluteDate originDate, Double timeFactor, double timeIn) Transform a time as double into an AbsoluteDate, taking into account the provided origin date and the time factor.
double[]	getCoefficients() Get the polynomial coefficients.
int	getDegree() Return the polynomial degree.
static double	getDoubleDateFromAbsoluteDate(AbsoluteDate originDate, Double timeFactor, AbsoluteDate dateIn) Transform an AbsoluteDate into a time as double, taking into account the provided origin date and time factor.
AbsoluteDate	getT0() Get the origin date.
DatePolynomialFunctionInterface	polynomialDerivative() Return the derivative date polynomial function.
DatePolynomialFunctionInterface	primitive(AbsoluteDate date0, double ordinate0) Return the primitive date polynomial function at the given date and for the given function value at abscissa0.

Methods inherited from interface fr.cnes.sirius.patrius.propagation.analytical.twod.UnivariateDateFunction

value

Method Detail

getT0

AbsoluteDate getT0()

Get the origin date.

Returns:

the origin date

dateToDouble

default double dateToDouble(AbsoluteDate date)

Get the time as double corresponding to the given AbsoluteDate.

Parameters:

date - the given AbsoluteDate

Returns:

the corresponding time as double

doubleToDate

default AbsoluteDate doubleToDate(double time)

Get the AbsoluteDate corresponding to the given time as double.

Parameters:

time - the given time as double with respect to time origin

Returns:

the corresponding AbsoluteDate

getDegree

int getDegree()

Return the polynomial degree.

Returns:

the polynomial degree

getCoefficients

double[] getCoefficients()

Get the polynomial coefficients.

Returns:

the polynomial coefficients

polynomialDerivative

DatePolynomialFunctionInterface polynomialDerivative()

Return the derivative date polynomial function.

Returns:

the derivative date polynomial function

primitive

DatePolynomialFunctionInterface primitive(AbsoluteDate date0,
                                          double ordinate0)

Return the primitive date polynomial function at the given date and for the given function value at abscissa0.

Parameters:

date0 - the date of interest

ordinate0 - the function value at abscissa0

Returns:

the primitive date polynomial function at the given date and for the given function value at abscissa0

getDoubleDateFromAbsoluteDate

static double getDoubleDateFromAbsoluteDate(AbsoluteDate originDate,
                                            Double timeFactor,
                                            AbsoluteDate dateIn)

Transform an AbsoluteDate into a time as double, taking into account the provided origin date and time factor.

Parameters:

originDate - the given origin date

timeFactor - the given output time as double is equal to the duration between the originDate and the dateIn, divided by this time factor. If null, a unit time factor (value 1.0) is used

dateIn - the given date

Returns:

the corresponding time as double

getAbsoluteDateFromDoubleDate

static AbsoluteDate getAbsoluteDateFromDoubleDate(AbsoluteDate originDate,
                                                  Double timeFactor,
                                                  double timeIn)

Transform a time as double into an AbsoluteDate, taking into account the provided origin date and the time factor.

Parameters:

originDate - the given origin date

timeFactor - the output date is equal to the origin date shifted by timeIn multiplied by this time factor. If null, a unit time factor (value 1.0) is used

timeIn - the given time as double to be transformed

Returns:

the corresponding AbsoluteDate