Admin tsn : Page créée avec «  == Introduction == A specific backward compatibility mechanism is implemented in PATRIUS allowing by default to have a backward compatibility with PATRIUS version 4.12 propagation models and/or optimisation algorithms. If any action is provided by the user, the '''backward compatibility is activated by default in PATRIUS''' : this means that external users will see their code/functions working with some of the propagation models/optimisation algorithms of PATRIU... »

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Page créée avec «  == Introduction == A specific backward compatibility mechanism is implemented in PATRIUS allowing by default to have a backward compatibility with PATRIUS version 4.12 propagation models and/or optimisation algorithms. If any action is provided by the user, the '''backward compatibility is activated by default in PATRIUS''' : this means that external users will see their code/functions working with some of the propagation models/optimisation algorithms of PATRIU... »

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== Introduction ==
A specific backward compatibility mechanism is implemented in PATRIUS allowing by default to have a backward compatibility with PATRIUS version 4.12 propagation models and/or optimisation algorithms.
If any action is provided by the user, the '''backward compatibility is activated by default in PATRIUS''' : this means that external users will see their code/functions working with some of the propagation models/optimisation algorithms of PATRIUS version 4.12.

== Backward compatibility functionalities ==

=== Available options ===
Three options are available for users via the enum <code>PatriusVersionCompatibility</code> of the class <code>PatriusConfiguration</code>:
* OLD_MODELS : the user will use the propagation models and optimisation algorithms coded in PATRIUS version 4.12;
* MIXED_MODELS : the user will just use propagation models coded in PATRIUS version 4.12 (no backward compatibility on optimisation algorithms);
* NEW_MODELS : no backward compatibility mechanism is used.

=== Backward compatibility for propagation models ===
As previously mentioned, types <code>PatriusVersionCompatibility.OLD_MODELS</code> or <code>MIXED_MODELS</code> allow to restore some of the propagation models to the state of PATRIUS version 4.12 for the following functionalities:
* eclipse detection via the class <code>EclipseDetector</code>;
* solar radiation pressure computation with the class <code>SolarRadiationPressure</code>;
* use of previous obliquity coefficients in the class <code>EclipticMODProvider</code> ;
* allows the use of previous entries in the factory <code>PrecessionNutationModelFactory</code> and pole coordinates computation in the class <code>IERS20032010PrecessionNutation</code>.

=== Backward compatibility for optimisation algorithms ===
The type of compatibility configuration OLD_MODELS allows to restore also the behaviour of the optimisation algorithm for matrix conversion existing in PATRIUS 4.12 and implemented in the method <code>convertMatrixFromAToB</code> of the class <code>AbstractBodyAttraction</code>.

== How to set our own Patrius compatibility configuration ==
The class <code>PatriusConfiguration</code> contains a setter <code>setPatriusCompatibilityMode(PatriusVersionCompatibility)</code> that allows to switch our own configuration as a function of the user needs.
A specific getter <code>getPatriusCompatibilityMode</code> allows to retrieve the used configuration at any moment if needed.

[[Category:User_Manual_4.16]]

Catégorie:Patrius Backward Compatibility 4.16 - Historique des versions