Package org.orekit.frames

Class ShiftingTransformProvider

java.lang.Object

org.orekit.frames.ShiftingTransformProvider

All Implemented Interfaces:

TransformProvider

public class ShiftingTransformProvider
extends Object
implements TransformProvider

Transform provider using thread-safe shifts on transforms sample.

The shifts take derivatives into account, up to user specified order.

Since:

7.1

Author:

Luc Maisonobe

See Also:

• GenericTimeStampedCache
• InterpolatingTransformProvider

Constructor Summary

Constructors

Constructor	Description
ShiftingTransformProvider(TransformProvider rawProvider, CartesianDerivativesFilter cFilter, AngularDerivativesFilter aFilter, int gridPoints, double step, int maxSlots, double maxSpan, double newSlotInterval)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
int	getGridPoints()	Get the number of interpolation grid points.
TransformProvider	getRawProvider()	Get the underlying provider for raw (non-interpolated) transforms.
StaticTransform	getStaticTransform(AbsoluteDate date)	Get a transform for only rotations and translations on the specified date.
<T extends CalculusFieldElement<T>> FieldStaticTransform<T>	getStaticTransform(FieldAbsoluteDate<T> date)	Get a transform for only rotations and translations on the specified date.
double	getStep()	Get the grid points time step.
Transform	getTransform(AbsoluteDate date)	Get the Transform corresponding to specified date.
<T extends CalculusFieldElement<T>> FieldTransform<T>	getTransform(FieldAbsoluteDate<T> date)	Get the FieldTransform corresponding to specified date.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.frames.TransformProvider

getKinematicTransform, getKinematicTransform

Constructor Details

ShiftingTransformProvider

public ShiftingTransformProvider(TransformProvider rawProvider,
 CartesianDerivativesFilter cFilter,
 AngularDerivativesFilter aFilter,
 int gridPoints,
 double step,
 int maxSlots,
 double maxSpan,
 double newSlotInterval)

Simple constructor.

Parameters:

rawProvider - provider for raw (non-interpolated) transforms

cFilter - filter for derivatives from the sample to use in interpolation

aFilter - filter for derivatives from the sample to use in interpolation

gridPoints - number of interpolation grid points

step - grid points time step

maxSlots - maximum number of independent cached time slots in the time-stamped cache

maxSpan - maximum duration span in seconds of one slot in the time-stamped cache

newSlotInterval - time interval above which a new slot is created in the time-stamped cache

Since:

9.1

Method Details

getRawProvider

public TransformProvider getRawProvider()

Get the underlying provider for raw (non-interpolated) transforms.

Returns:

provider for raw (non-interpolated) transforms

getGridPoints

public int getGridPoints()

Get the number of interpolation grid points.

Returns:

number of interpolation grid points

getStep

public double getStep()

Get the grid points time step.

Returns:

grid points time step

getTransform

public Transform getTransform(AbsoluteDate date)

Get the Transform corresponding to specified date.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - current date

Returns:

transform at specified date

getStaticTransform

public StaticTransform getStaticTransform(AbsoluteDate date)

Get a transform for only rotations and translations on the specified date.

The default implementation calls TransformProvider.getTransform(AbsoluteDate) but implementations may override it for better performance.

Specified by:

getStaticTransform in interface TransformProvider

Parameters:

date - current date.

Returns:

the static transform.

getTransform

public <T extends CalculusFieldElement<T>>
FieldTransform<T> getTransform(FieldAbsoluteDate<T> date)

Get the FieldTransform corresponding to specified date.

Specified by:

getTransform in interface TransformProvider

Type Parameters:

T - type of the field elements

Parameters:

date - current date

Returns:

transform at specified date

getStaticTransform

public <T extends CalculusFieldElement<T>>
FieldStaticTransform<T> getStaticTransform(FieldAbsoluteDate<T> date)

Get a transform for only rotations and translations on the specified date.

The default implementation returns TransformProvider.getTransform(AbsoluteDate) but implementations may override it for better performance.

Specified by:

getStaticTransform in interface TransformProvider

Type Parameters:

T - type of the elements

Parameters:

date - current date.

Returns:

the static transform.