Data initialization : Différence entre versions
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(Page créée avec « == Orbit == To initialize an orbit, we simply have to build it using https://logiciels.cnes.fr/en/node/62?type=desc PATRIUS object. For example: <syntaxhighlight lan... ») |
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new KeplerianOrbit(sma, ecc, inc, raan, pa, ano, PositionAngle.MEAN, GCRF, date, MU); | new KeplerianOrbit(sma, ecc, inc, raan, pa, ano, PositionAngle.MEAN, GCRF, date, MU); | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| + | |||
| + | == Earth features == | ||
| + | |||
| + | Data equivalent to the “[[Earth_Features Earth features]]” tab are distributed via two arguments: | ||
| + | |||
| + | # A ExtendedOneAxisEllipsoid object which will define the shape of the planet | ||
| + | <syntaxhighlight lang="java"> | ||
| + | final ExtendedOneAxisEllipsoid EARTH = | ||
| + | new ExtendedOneAxisEllipsoid(REQ, FLAT, ITRF, "EARTH"); | ||
| + | <syntaxhighlight> | ||
| + | # A type of enumerates that will propose some pre-defined configurations as: | ||
| + | * NOTHING (all options set to null) | ||
| + | * ONLY_PREC_NUT (only precession and nutation) | ||
| + | * FACTORY (equivalent to the most complete definition as in the GUI) | ||
| + | * IGNORE (nothing is define internally by PSIMU which will take into account the user parametrization previously done) | ||
Version du 7 juillet 2017 à 06:51
Orbit
To initialize an orbit, we simply have to build it using [PATRIUS] object. For example:
final TimeScale TUC = TimeScalesFactory.getUTC(); final AbsoluteDate date = new AbsoluteDate("2010-01-01T12:00:00.000", TUC); final double sma = Constants.WGS84_EARTH_EQUATORIAL_RADIUS + 250.e3; final double ecc = 0.; final double inc = FastMath.toRadians(51.6); final double raan = FastMath.toRadians(0.); final double pa = FastMath.toRadians(0.); final double ano = FastMath.toRadians(0.); final Frame GCRF = FramesFactory.getGCRF(); final KeplerianOrbit iniOrbit = new KeplerianOrbit(sma, ecc, inc, raan, pa, ano, PositionAngle.MEAN, GCRF, date, MU);
Earth features
Data equivalent to the “Earth_Features Earth features” tab are distributed via two arguments:
- A ExtendedOneAxisEllipsoid object which will define the shape of the planet
final ExtendedOneAxisEllipsoid EARTH = new ExtendedOneAxisEllipsoid(REQ, FLAT, ITRF, "EARTH"); <syntaxhighlight> # A type of enumerates that will propose some pre-defined configurations as: * NOTHING (all options set to null) * ONLY_PREC_NUT (only precession and nutation) * FACTORY (equivalent to the most complete definition as in the GUI) * IGNORE (nothing is define internally by PSIMU which will take into account the user parametrization previously done)
