API Propagation - Historique des versions

Admin : /* Case of adding attitude laws */

2021-09-13T08:00:18Z

Case of adding attitude laws

← Version précédente		Version du 13 septembre 2021 à 08:00
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	</syntaxhighlight>		</syntaxhighlight>

	In each case all attitude objects will correspond to [http://patrius.cnes.fr PATRIUS ones].		In each case all attitude objects will correspond to [http://patrius.cnes.fr PATRIUS] ones.

	=== Propagation ===		=== Propagation ===

Admin : /* Case of adding attitude laws */

2021-09-13T07:59:47Z

Case of adding attitude laws

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 === Case of adding attitude laws ===
 <syntaxhighlight lang="java">
 </syntaxhighlight>
 === Propagation ===

Admin : /* = Case of adding maneuvers */

2021-09-13T07:55:05Z

= Case of adding maneuvers

← Version précédente		Version du 13 septembre 2021 à 07:55
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	</syntaxhighlight>		</syntaxhighlight>

	=== Case of adding maneuvers ==		=== Case of adding maneuvers ===

	In the example below, we will add both an impulse maneuver and a continuous one. Note that, rather to use basic [http://patrius.cnes.fr PATRIUS] objects for maneuvers and maneuvers sequences, we will use "Custom" ones which correspond to equivalent ones but used by [http://psimu.cnes.fr PSIMU] (see [http://psimu.cnes.~~frindex~~.php/Data_initialization#Maneuvers here]).		In the example below, we will add both an impulse maneuver and a continuous one. Note that, rather to use basic [http://patrius.cnes.fr PATRIUS] objects for maneuvers and maneuvers sequences, we will use "Custom" ones which correspond to equivalent ones but used by [http://psimu.cnes.fr PSIMU] (see [http://psimu.cnes.fr/index.php/Data_initialization#Maneuvers here]).

	<syntaxhighlight lang="java">		<syntaxhighlight lang="java">

Admin : /* = Case of adding maneuvers */

2021-09-13T07:54:27Z

= Case of adding maneuvers

← Version précédente		Version du 13 septembre 2021 à 07:54
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	=== Case of adding maneuvers ==		=== Case of adding maneuvers ==

	In the example below, we will add both an impulse maneuver and a continuous one. Note that, rather to use basic [http://patrius.cnes.fr PATRIUS]] objects for maneuvers and maneuvers sequences, we will use "Custom" ones which correspond to equivalent ~~one~~ but ~~use~~ by [http://psimu.cnes.fr PSIMU]] (see [http://psimu.cnes.frindex.php/Data_initialization#~~Meneuvers~~ here]).		In the example below, we will add both an impulse maneuver and a continuous one. Note that, rather to use basic [http://patrius.cnes.fr PATRIUS] objects for maneuvers and maneuvers sequences, we will use "Custom" ones which correspond to equivalent ones but used by [http://psimu.cnes.fr PSIMU] (see [http://psimu.cnes.frindex.php/Data_initialization#Maneuvers here]).

	<syntaxhighlight lang="java">		<syntaxhighlight lang="java">

Admin : /* Propagation data initialization */

2021-09-13T07:53:53Z

Propagation data initialization

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 final GtmPropagationData propData = new GtmPropagationData(Constants.JULIAN_DAY, GtmConstants.HOUR, 1.0, 300., 7.e-6, 3.e-10, 0., 0.)
 leo.setPropagationData(propData);
 </syntaxhighlight>

Admin le 13 septembre 2021 à 07:39

2021-09-13T07:39:53Z

← Version précédente		Version du 13 septembre 2021 à 07:39
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	There are two possibilities to initialize an orbital propagation using a GtmLeoPropagator or a GtmLeoPropagator object.		There are two possibilities to initialize an orbital propagation using a [{{PathCurrentJavaDoc}}/fr/cnes/dynvol/gentleman/calc/propagation/GtmLeoPropagator.html GtmLeoPropagator] or a [{{PathCurrentJavaDoc}}/fr/cnes/dynvol/gentleman/calc/propagation/GtmGeoPropagator.html GtmLeoPropagator] object.

	== LEO propagation ==		== LEO propagation ==

Admin : /* Propagation data initialization */

2021-09-10T11:03:19Z

Propagation data initialization

← Version précédente		Version du 10 septembre 2021 à 11:03
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	=== Propagation data initialization ===		=== Propagation data initialization ===

	The ~~siplest~~ way is to use the setPropagationData() method passing only the duration of the propagation and the output step. All other data (for the numerical propagator) will be considered with default values.		The simplest way is to use the setPropagationData() method passing only the duration of the propagation and the output step. All other data (for the numerical propagator) will be considered with default values.

	<syntaxhighlight lang="java">		<syntaxhighlight lang="java">

Admin le 10 septembre 2021 à 11:03

2021-09-10T11:03:06Z

← Version précédente		Version du 10 septembre 2021 à 11:03
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	== GEO progation ==		== GEO progation ==

			For <font color=#FF8C00 title="Geostationnary Earth Orbit">GEO</font> orbits, the principle is exactly the same as for <font color=#FF8C00 title="Low Earth Orbit">LEO</font> ones except the fact that we will use a [{{PathCurrentJavaDoc}}/fr/cnes/dynvol/gentleman/calc/propagation/GtmGeoPropagator.html GtmLeoPropagator] object.

			<syntaxhighlight lang="java">
	final GtmGeoPropagator geo = new GtmGeoPropagator();		final GtmGeoPropagator geo = new GtmGeoPropagator();

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	// Propagation		// Propagation
	geo.propagate();		geo.propagate();
			</syntaxhighlight>

Admin : /* GEO progation */

2021-09-10T11:00:29Z

GEO progation

← Version précédente		Version du 10 septembre 2021 à 11:00
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	== GEO progation ==		== GEO progation ==

			final GtmGeoPropagator geo = new GtmGeoPropagator();

			// Orbit initialization
			final AbsoluteDate date = new AbsoluteDate("2020-01-01T00:00:00.000", GtmConstants.UTC);
			final double lon = FastMath.toRadians(75.);
			final GtmGeoSimpleOrbit simpleOrbit = new GtmGeoSimpleOrbit(date, 0., 0., 0., lon);
			geo.setIniOrbit(simpleOrbit.getOrbit());

			// Vehicle characteristics
			final double dryMass = 3000.;
			final double mainArea = 10.;
			final double spArea = 90.;
			final GtmSimpleVehicle veh = new GtmSimpleVehicle(dryMass, mainArea, spArea, 0., 0., 0., 0., 0.);
			geo.setVehicle(veh.getVehicle());

			// Forces models
			final GtmSimpleForces forces = new GtmSimpleForces(0, 0, false, false, false, false, false, geo.getAssembly(), geo.getEllipsoid());
			geo.setForces(forces.getForces());

			// Propagation data
			geo.setPropagationData(7*Constants.JULIAN_DAY, GtmConstants.HOUR);

			// Propagation
			geo.propagate();

Admin : /* Propagation */

2021-09-10T10:58:42Z

Propagation

← Version précédente		Version du 10 septembre 2021 à 10:58
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	=== Propagation ===		=== Propagation ===

	To propagate the trajectory, it is only needed to call the [{{PathCurrentJavaDoc}}/fr/cnes/dynvol/gentleman/calc/propagation/AbstractGtmPropagator.html#propagate propagate()] method:		To propagate the trajectory, it is only needed to call the [{{PathCurrentJavaDoc}}/fr/cnes/dynvol/gentleman/calc/propagation/AbstractGtmPropagator.html#propagate-- propagate()] method:

	<syntaxhighlight lang="java">		<syntaxhighlight lang="java">

API Propagation - Historique des versions

Admin : /* Case of adding attitude laws */

Admin : /* Case of adding attitude laws */

Admin : /* = Case of adding maneuvers */

Admin : /* = Case of adding maneuvers */

Admin : /* Propagation data initialization */

Admin le 13 septembre 2021 à 07:39

Admin : /* Propagation data initialization */

Admin le 10 septembre 2021 à 11:03

Admin : /* GEO progation */

Admin : /* Propagation */

Admin : /* Case of adding attitude laws */

Admin : /* Case of adding attitude laws */

Admin : /* = Case of adding maneuvers */

Admin : /* = Case of adding maneuvers */

Admin : /* Propagation data initialization */

Admin : /* Propagation data initialization */

Admin : /* GEO progation */

Admin : /* Propagation */