Package org.orekit.frames

Class FieldCachedTransformProvider<T extends CalculusFieldElement<T>>

java.lang.Object

org.orekit.frames.FieldCachedTransformProvider<T>

Type Parameters:

T - type of the field elements

public class FieldCachedTransformProvider<T extends CalculusFieldElement<T>>
extends Object

Thread-safe cached provider for frame transforms.

This provider is based on a thread-safe Least Recently Used cache using date as it access key, hence saving computation time on transform building.

This class is thread-safe.

Since:

13.0.3

Author:

Luc Maisonobe

Constructor Summary

Constructors

Constructor	Description
FieldCachedTransformProvider(Frame origin, Frame destination, Function<FieldAbsoluteDate<T>,FieldTransform<T>> fullGenerator, Function<FieldAbsoluteDate<T>,FieldKinematicTransform<T>> kinematicGenerator, Function<FieldAbsoluteDate<T>,FieldStaticTransform<T>> staticGenerator, int cacheSize)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
int	getCacheSize()	Get the nmber of transforms kept in the date-based cache.
Frame	getDestination()	Get destination frame.
FieldKinematicTransform<T>	getKinematicTransform(FieldAbsoluteDate<T> date)	Get the Transform corresponding to specified date.
Frame	getOrigin()	Get origin frame.
FieldStaticTransform<T>	getStaticTransform(FieldAbsoluteDate<T> date)	Get the Transform corresponding to specified date.
FieldTransform<T>	getTransform(FieldAbsoluteDate<T> date)	Get the Transform corresponding to specified date.

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldCachedTransformProvider

public FieldCachedTransformProvider(Frame origin,
                                    Frame destination,
                                    Function<FieldAbsoluteDate<T>,FieldTransform<T>> fullGenerator,
                                    Function<FieldAbsoluteDate<T>,FieldKinematicTransform<T>> kinematicGenerator,
                                    Function<FieldAbsoluteDate<T>,FieldStaticTransform<T>> staticGenerator,
                                    int cacheSize)

Simple constructor.

Parameters:

origin - origin frame

destination - destination frame

fullGenerator - generator for full transforms

kinematicGenerator - generator for kinematic transforms

staticGenerator - generator for static transforms

cacheSize - number of transforms kept in the date-based cache

Method Detail

getOrigin

public Frame getOrigin()

Get origin frame.

Returns:

origin frame

getDestination

public Frame getDestination()

Get destination frame.

Returns:

destination frame

getCacheSize

public int getCacheSize()

Get the nmber of transforms kept in the date-based cache.

Returns:

nmber of transforms kept in the date-based cache

getTransform

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

Get the Transform corresponding to specified date.

Parameters:

date - current date

Returns:

transform at specified date

getKinematicTransform

public FieldKinematicTransform<T> getKinematicTransform(FieldAbsoluteDate<T> date)

Get the Transform corresponding to specified date.

Parameters:

date - current date

Returns:

transform at specified date

getStaticTransform

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

Get the Transform corresponding to specified date.

Parameters:

date - current date

Returns:

transform at specified date