CelestialBodyFactory.java
/* Copyright 2002-2024 CS GROUP
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* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS licenses this file to You under the Apache License, Version 2.0
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* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
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package org.orekit.bodies;
import org.orekit.annotation.DefaultDataContext;
import org.orekit.data.DataContext;
/** Factory class for bodies of the solar system.
* <p>The {@link #getSun() Sun}, the {@link #getMoon() Moon} and the planets
* (including the Pluto dwarf planet) are provided by this factory. In addition,
* two important points are provided for convenience: the {@link
* #getSolarSystemBarycenter() solar system barycenter} and the {@link
* #getEarthMoonBarycenter() Earth-Moon barycenter}.</p>
* <p>The underlying body-centered frames are either direct children of {@link
* org.orekit.frames.FramesFactory#getEME2000() EME2000} (for {@link #getMoon() Moon}
* and {@link #getEarthMoonBarycenter() Earth-Moon barycenter}) or children from other
* body-centered frames. For example, the path from EME2000 to
* Jupiter-centered frame is: EME2000, Earth-Moon barycenter centered,
* solar system barycenter centered, Jupiter-centered. The defining transforms
* of these frames are combinations of simple linear {@link
* org.orekit.frames.Transform#Transform(org.orekit.time.AbsoluteDate,
* org.hipparchus.geometry.euclidean.threed.Vector3D,
* org.hipparchus.geometry.euclidean.threed.Vector3D) translation/velocity} transforms
* without any rotation. The frame axes are therefore always parallel to
* {@link org.orekit.frames.FramesFactory#getEME2000() EME2000} frame axes.</p>
* <p>The position of the bodies provided by this class are interpolated using
* the JPL DE 405/DE 406 ephemerides.</p>
* @author Luc Maisonobe
*/
public class CelestialBodyFactory {
/** Predefined name for solar system barycenter.
* @see #getBody(String)
*/
public static final String SOLAR_SYSTEM_BARYCENTER = "solar system barycenter";
/** Predefined name for Sun.
* @see #getBody(String)
*/
public static final String SUN = "Sun";
/** Predefined name for Mercury.
* @see #getBody(String)
*/
public static final String MERCURY = "Mercury";
/** Predefined name for Venus.
* @see #getBody(String)
*/
public static final String VENUS = "Venus";
/** Predefined name for Earth-Moon barycenter.
* @see #getBody(String)
*/
public static final String EARTH_MOON = "Earth-Moon barycenter";
/** Predefined name for Earth.
* @see #getBody(String)
*/
public static final String EARTH = "Earth";
/** Predefined name for Moon.
* @see #getBody(String)
*/
public static final String MOON = "Moon";
/** Predefined name for Mars.
* @see #getBody(String)
*/
public static final String MARS = "Mars";
/** Predefined name for Jupiter.
* @see #getBody(String)
*/
public static final String JUPITER = "Jupiter";
/** Predefined name for Saturn.
* @see #getBody(String)
*/
public static final String SATURN = "Saturn";
/** Predefined name for Uranus.
* @see #getBody(String)
*/
public static final String URANUS = "Uranus";
/** Predefined name for Neptune.
* @see #getBody(String)
*/
public static final String NEPTUNE = "Neptune";
/** Predefined name for Pluto.
* @see #getBody(String)
*/
public static final String PLUTO = "Pluto";
/** Private constructor.
* <p>This class is a utility class, it should neither have a public
* nor a default constructor. This private constructor prevents
* the compiler from generating one automatically.</p>
*/
private CelestialBodyFactory() {
}
/**
* Get the instance of {@link CelestialBodies} that is called by the static methods in
* this class.
*
* @return the reference frames used by this factory.
*/
@DefaultDataContext
public static LazyLoadedCelestialBodies getCelestialBodies() {
return DataContext.getDefault().getCelestialBodies();
}
/** Add a loader for celestial bodies.
* @param name name of the body (may be one of the predefined names or a user-defined name)
* @param loader custom loader to add for the body
* @see #addDefaultCelestialBodyLoader(String)
* @see #clearCelestialBodyLoaders(String)
* @see #clearCelestialBodyLoaders()
*/
@DefaultDataContext
public static void addCelestialBodyLoader(final String name,
final CelestialBodyLoader loader) {
getCelestialBodies().addCelestialBodyLoader(name, loader);
}
/** Add the default loaders for all predefined celestial bodies.
* @param supportedNames regular expression for supported files names
* (may be null if the default JPL file names are used)
* <p>
* The default loaders look for DE405 or DE406 JPL ephemerides.
* </p>
* @see <a href="ftp://ssd.jpl.nasa.gov/pub/eph/planets/Linux/de405/">DE405 JPL ephemerides</a>
* @see <a href="ftp://ssd.jpl.nasa.gov/pub/eph/planets/Linux/de406/">DE406 JPL ephemerides</a>
* @see #addCelestialBodyLoader(String, CelestialBodyLoader)
* @see #addDefaultCelestialBodyLoader(String)
* @see #clearCelestialBodyLoaders(String)
* @see #clearCelestialBodyLoaders()
*/
@DefaultDataContext
public static void addDefaultCelestialBodyLoader(final String supportedNames) {
getCelestialBodies().addDefaultCelestialBodyLoader(supportedNames);
}
/** Add the default loaders for celestial bodies.
* @param name name of the body (if not one of the predefined names, the method does nothing)
* @param supportedNames regular expression for supported files names
* (may be null if the default JPL file names are used)
* <p>
* The default loaders look for DE405 or DE406 JPL ephemerides.
* </p>
* @see <a href="ftp://ssd.jpl.nasa.gov/pub/eph/planets/Linux/de405/">DE405 JPL ephemerides</a>
* @see <a href="ftp://ssd.jpl.nasa.gov/pub/eph/planets/Linux/de406/">DE406 JPL ephemerides</a>
* @see #addCelestialBodyLoader(String, CelestialBodyLoader)
* @see #addDefaultCelestialBodyLoader(String)
* @see #clearCelestialBodyLoaders(String)
* @see #clearCelestialBodyLoaders()
*/
@DefaultDataContext
public static void addDefaultCelestialBodyLoader(final String name,
final String supportedNames) {
getCelestialBodies().addDefaultCelestialBodyLoader(name, supportedNames);
}
/** Clear loaders for one celestial body.
* <p>
* Calling this method also clears the celestial body that
* has been loaded via this {@link CelestialBodyLoader}.
* </p>
* @param name name of the body
* @see #addCelestialBodyLoader(String, CelestialBodyLoader)
* @see #clearCelestialBodyLoaders()
* @see #clearCelestialBodyCache(String)
*/
@DefaultDataContext
public static void clearCelestialBodyLoaders(final String name) {
getCelestialBodies().clearCelestialBodyLoaders(name);
}
/** Clear loaders for all celestial bodies.
* <p>
* Calling this method also clears all loaded celestial bodies.
* </p>
* @see #addCelestialBodyLoader(String, CelestialBodyLoader)
* @see #clearCelestialBodyLoaders(String)
* @see #clearCelestialBodyCache()
*/
@DefaultDataContext
public static void clearCelestialBodyLoaders() {
getCelestialBodies().clearCelestialBodyLoaders();
}
/** Clear the specified celestial body from the internal cache.
* @param name name of the body
*/
@DefaultDataContext
public static void clearCelestialBodyCache(final String name) {
getCelestialBodies().clearCelestialBodyCache(name);
}
/** Clear all loaded celestial bodies.
* <p>
* Calling this method will remove all loaded bodies from the internal
* cache. Subsequent calls to {@link #getBody(String)} or similar methods
* will result in a reload of the requested body from the configured loader(s).
* </p>
*/
@DefaultDataContext
public static void clearCelestialBodyCache() {
getCelestialBodies().clearCelestialBodyCache();
}
/** Get the solar system barycenter aggregated body.
* <p>
* Both the {@link CelestialBody#getInertiallyOrientedFrame() inertially
* oriented frame} and {@link CelestialBody#getBodyOrientedFrame() body
* oriented frame} for this aggregated body are aligned with
* {@link org.orekit.frames.FramesFactory#getICRF() ICRF} (and therefore also
* {@link org.orekit.frames.FramesFactory#getGCRF() GCRF})
* </p>
* @return solar system barycenter aggregated body
*/
@DefaultDataContext
public static CelestialBody getSolarSystemBarycenter() {
return getCelestialBodies().getSolarSystemBarycenter();
}
/** Get the Sun singleton body.
* @return Sun body
*/
@DefaultDataContext
public static CelestialBody getSun() {
return getCelestialBodies().getSun();
}
/** Get the Mercury singleton body.
* @return Sun body
*/
@DefaultDataContext
public static CelestialBody getMercury() {
return getCelestialBodies().getMercury();
}
/** Get the Venus singleton body.
* @return Venus body
*/
@DefaultDataContext
public static CelestialBody getVenus() {
return getCelestialBodies().getVenus();
}
/** Get the Earth-Moon barycenter singleton bodies pair.
* <p>
* Both the {@link CelestialBody#getInertiallyOrientedFrame() inertially
* oriented frame} and {@link CelestialBody#getBodyOrientedFrame() body
* oriented frame} for this bodies pair are aligned with
* {@link org.orekit.frames.FramesFactory#getICRF() ICRF} (and therefore also
* {@link org.orekit.frames.FramesFactory#getGCRF() GCRF})
* </p>
* @return Earth-Moon barycenter bodies pair
*/
@DefaultDataContext
public static CelestialBody getEarthMoonBarycenter() {
return getCelestialBodies().getEarthMoonBarycenter();
}
/** Get the Earth singleton body.
* @return Earth body
*/
@DefaultDataContext
public static CelestialBody getEarth() {
return getCelestialBodies().getEarth();
}
/** Get the Moon singleton body.
* @return Moon body
*/
@DefaultDataContext
public static CelestialBody getMoon() {
return getCelestialBodies().getMoon();
}
/** Get the Mars singleton body.
* @return Mars body
*/
@DefaultDataContext
public static CelestialBody getMars() {
return getCelestialBodies().getMars();
}
/** Get the Jupiter singleton body.
* @return Jupiter body
*/
@DefaultDataContext
public static CelestialBody getJupiter() {
return getCelestialBodies().getJupiter();
}
/** Get the Saturn singleton body.
* @return Saturn body
*/
@DefaultDataContext
public static CelestialBody getSaturn() {
return getCelestialBodies().getSaturn();
}
/** Get the Uranus singleton body.
* @return Uranus body
*/
@DefaultDataContext
public static CelestialBody getUranus() {
return getCelestialBodies().getUranus();
}
/** Get the Neptune singleton body.
* @return Neptune body
*/
@DefaultDataContext
public static CelestialBody getNeptune() {
return getCelestialBodies().getNeptune();
}
/** Get the Pluto singleton body.
* @return Pluto body
*/
@DefaultDataContext
public static CelestialBody getPluto() {
return getCelestialBodies().getPluto();
}
/** Get a celestial body.
* <p>
* If no {@link CelestialBodyLoader} has been added by calling {@link
* #addCelestialBodyLoader(String, CelestialBodyLoader)
* addCelestialBodyLoader} or if {@link #clearCelestialBodyLoaders(String)
* clearCelestialBodyLoaders} has been called afterwards,
* the {@link #addDefaultCelestialBodyLoader(String, String)
* 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.
* </p>
* @param name name of the celestial body
* @return celestial body
*/
@DefaultDataContext
public static CelestialBody getBody(final String name) {
return getCelestialBodies().getBody(name);
}
}