Package org.orekit.bodies

Class LazyLoadedCelestialBodies

java.lang.Object

org.orekit.bodies.LazyLoadedCelestialBodies

All Implemented Interfaces:

CelestialBodies

public class LazyLoadedCelestialBodies
extends Object
implements CelestialBodies

This class lazily loads auxiliary data when it is needed by a requested body. It is designed to match the behavior of CelestialBodyFactory in Orekit 10.0.

Since:

10.1

Author:

Luc Maisonobe, Evan Ward

See Also:

• CelestialBodyFactory

Constructor Summary

Constructors

Constructor	Description
LazyLoadedCelestialBodies(DataProvidersManager dataProvidersManager, TimeScales timeScales, Frame gcrf)	Create a celestial body factory with the given auxiliary data sources.

Method Summary

Modifier and Type	Method	Description
void	addCelestialBodyLoader(String name, CelestialBodyLoader loader)	Add a loader for celestial bodies.
void	addDefaultCelestialBodyLoader(String supportedNames)	Add the default loaders for all predefined celestial bodies.
void	addDefaultCelestialBodyLoader(String name, String supportedNames)	Add the default loaders for celestial bodies.
void	clearCelestialBodyCache()	Clear all loaded celestial bodies.
void	clearCelestialBodyCache(String name)	Clear the specified celestial body from the internal cache.
void	clearCelestialBodyLoaders()	Clear loaders for all celestial bodies.
void	clearCelestialBodyLoaders(String name)	Clear loaders for one celestial body.
CelestialBody	getBody(String name)	Get a celestial body.
CelestialBody	getEarth()	Get the Earth singleton body.
CelestialBody	getEarthMoonBarycenter()	Get the Earth-Moon barycenter singleton bodies pair.
CelestialBody	getJupiter()	Get the Jupiter singleton body.
CelestialBody	getMars()	Get the Mars singleton body.
CelestialBody	getMercury()	Get the Mercury singleton body.
CelestialBody	getMoon()	Get the Moon singleton body.
CelestialBody	getNeptune()	Get the Neptune singleton body.
CelestialBody	getPluto()	Get the Pluto singleton body.
CelestialBody	getSaturn()	Get the Saturn singleton body.
CelestialBody	getSolarSystemBarycenter()	Get the solar system barycenter aggregated body.
CelestialBody	getSun()	Get the Sun singleton body.
CelestialBody	getUranus()	Get the Uranus singleton body.
CelestialBody	getVenus()	Get the Venus singleton body.

Methods inherited from class java.lang.Object

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

Constructor Details

LazyLoadedCelestialBodies

public LazyLoadedCelestialBodies(DataProvidersManager dataProvidersManager,
 TimeScales timeScales,
 Frame gcrf)

Create a celestial body factory with the given auxiliary data sources.

Parameters:

dataProvidersManager - supplies JPL ephemerides auxiliary data files.

timeScales - set of time scales to use when loading bodies.

gcrf - Earth centered frame aligned with ICRF.

Method Details

addCelestialBodyLoader

public void addCelestialBodyLoader(String name,
 CelestialBodyLoader loader)

Add a loader for celestial bodies.

Parameters:

name - name of the body (may be one of the predefined names or a user-defined name)

loader - custom loader to add for the body

See Also:

• addDefaultCelestialBodyLoader(String)
• clearCelestialBodyLoaders(String)
• clearCelestialBodyLoaders()

addDefaultCelestialBodyLoader

public void addDefaultCelestialBodyLoader(String supportedNames)

Add the default loaders for all predefined celestial bodies.

Parameters:

supportedNames - regular expression for supported files names (may be null if the default JPL file names are used)

The default loaders look for DE405 or DE406 JPL ephemerides.

See Also:

• DE405 JPL ephemerides
• DE406 JPL ephemerides
• addCelestialBodyLoader(String, CelestialBodyLoader)
• addDefaultCelestialBodyLoader(String)
• clearCelestialBodyLoaders(String)
• clearCelestialBodyLoaders()

addDefaultCelestialBodyLoader

public void addDefaultCelestialBodyLoader(String name,
 String supportedNames)

Add the default loaders for celestial bodies.

Parameters:

name - name of the body (if not one of the predefined names, the method does nothing)

supportedNames - regular expression for supported files names (may be null if the default JPL file names are used)

The default loaders look for DE405 or DE406 JPL ephemerides.

See Also:

• DE405 JPL ephemerides
• DE406 JPL ephemerides
• addCelestialBodyLoader(String, CelestialBodyLoader)
• addDefaultCelestialBodyLoader(String)
• clearCelestialBodyLoaders(String)
• clearCelestialBodyLoaders()

clearCelestialBodyLoaders

public void clearCelestialBodyLoaders(String name)

Clear loaders for one celestial body.

Calling this method also clears the celestial body that has been loaded via this CelestialBodyLoader.

Parameters:

name - name of the body

See Also:

• addCelestialBodyLoader(String, CelestialBodyLoader)
• clearCelestialBodyLoaders()
• clearCelestialBodyCache(String)

clearCelestialBodyLoaders

public void clearCelestialBodyLoaders()

Clear loaders for all celestial bodies.

Calling this method also clears all loaded celestial bodies.

See Also:

• addCelestialBodyLoader(String, CelestialBodyLoader)
• clearCelestialBodyLoaders(String)
• clearCelestialBodyCache()

clearCelestialBodyCache

public void clearCelestialBodyCache(String name)

Clear the specified celestial body from the internal cache.

Parameters:

name - name of the body

clearCelestialBodyCache

public void clearCelestialBodyCache()

Clear all loaded celestial bodies.

Calling this method will remove all loaded bodies from the internal cache. Subsequent calls to getBody(String) or similar methods will result in a reload of the requested body from the configured loader(s).

getSolarSystemBarycenter

public CelestialBody getSolarSystemBarycenter()

Description copied from interface: CelestialBodies

Get the solar system barycenter aggregated body.

Both the inertially oriented frame and body oriented frame for this aggregated body are aligned with ICRF (and therefore also GCRF)

Specified by:

getSolarSystemBarycenter in interface CelestialBodies

Returns:

solar system barycenter aggregated body

getSun

public CelestialBody getSun()

Description copied from interface: CelestialBodies

Get the Sun singleton body.

Specified by:

getSun in interface CelestialBodies

Returns:

Sun body

getMercury

public CelestialBody getMercury()

Description copied from interface: CelestialBodies

Get the Mercury singleton body.

Specified by:

getMercury in interface CelestialBodies

Returns:

Sun body

getVenus

public CelestialBody getVenus()

Description copied from interface: CelestialBodies

Get the Venus singleton body.

Specified by:

getVenus in interface CelestialBodies

Returns:

Venus body

getEarthMoonBarycenter

public CelestialBody getEarthMoonBarycenter()

Description copied from interface: CelestialBodies

Get the Earth-Moon barycenter singleton bodies pair.

Both the inertially oriented frame and body oriented frame for this bodies pair are aligned with ICRF (and therefore also GCRF)

Specified by:

getEarthMoonBarycenter in interface CelestialBodies

Returns:

Earth-Moon barycenter bodies pair

getEarth

public CelestialBody getEarth()

Description copied from interface: CelestialBodies

Get the Earth singleton body.

Specified by:

getEarth in interface CelestialBodies

Returns:

Earth body

getMoon

public CelestialBody getMoon()

Description copied from interface: CelestialBodies

Get the Moon singleton body.

Specified by:

getMoon in interface CelestialBodies

Returns:

Moon body

getMars

public CelestialBody getMars()

Description copied from interface: CelestialBodies

Get the Mars singleton body.

Specified by:

getMars in interface CelestialBodies

Returns:

Mars body

getJupiter

public CelestialBody getJupiter()

Description copied from interface: CelestialBodies

Get the Jupiter singleton body.

Specified by:

getJupiter in interface CelestialBodies

Returns:

Jupiter body

getSaturn

public CelestialBody getSaturn()

Description copied from interface: CelestialBodies

Get the Saturn singleton body.

Specified by:

getSaturn in interface CelestialBodies

Returns:

Saturn body

getUranus

public CelestialBody getUranus()

Description copied from interface: CelestialBodies

Get the Uranus singleton body.

Specified by:

getUranus in interface CelestialBodies

Returns:

Uranus body

getNeptune

public CelestialBody getNeptune()

Description copied from interface: CelestialBodies

Get the Neptune singleton body.

Specified by:

getNeptune in interface CelestialBodies

Returns:

Neptune body

getPluto

public CelestialBody getPluto()

Description copied from interface: CelestialBodies

Get the Pluto singleton body.

Specified by:

getPluto in interface CelestialBodies

Returns:

Pluto body

getBody

public CelestialBody getBody(String name)

Get a celestial body. The names of the common bodies are defined as constants in CelestialBodyFactory.

If no CelestialBodyLoader has been added by calling addCelestialBodyLoader or if clearCelestialBodyLoaders has been called afterwards, the addDefaultCelestialBodyLoader method will be called automatically, once with the default name for JPL DE ephemerides and once with the default name for IMCCE INPOP files.

Specified by:

getBody in interface CelestialBodies

Parameters:

name - name of the celestial body

Returns:

celestial body