Create IDS with Arrays of Structures (AoS)¶

public static void creatingCompletlyNewIDS() throws Exception {

    try {
        // empty IDS structures can be created without opening data entry
        // all you have to do is to instantiate IDS object
        imas.core_profiles emptyCoreProfiles = new imas.core_profiles();

        // Note! Every IDS must have <ids>/ids_properties/homogeneous_time field set with one of possible values
        // possible homogeneous_time values are:
        // IDS_TIME_MODE_HETEROGENEOUS: All time-dependent quantities in the IDS may have different time coordinates.
        // IDS_TIME_MODE_HOMOGENEOUS: All time-dependent quantities in this IDS use the same time coordinate, namely <ids>/time
        // IDS_TIME_MODE_INDEPENDENT: The IDS stores no time-dependent data.
        emptyCoreProfiles.ids_properties.homogeneous_time = LowLevel.IDS_TIME_MODE_HOMOGENEOUS;
        
        // it is also recommended to provide basic information regarding data source
        // even though this information is not required to store IDS, it is highly recommended
        // to fill these fields.
        //  <ids>/ids_properties/comment
        //  <ids>/ids_properties/provider
        //  <ids>/ids_properties/creation_date

        // when ids_properties.homogeneous_time is set to IDS_TIME_MODE_HOMOGENEOUS,
        // all time-dependent fields values correspond to <ids>.time vector.
        double[] timeArray = {1.0, 2.0, 3.0};
        emptyCoreProfiles.time = new Vect1DDouble(timeArray);

        // size of time dependent variables must be equal to the size of time vector
        emptyCoreProfiles.global_quantities.ip = new Vect1DDouble(timeArray);

        // IDSs fields can be printed.
        System.out.println("\nSaved values of emptyCoreProfiles from creatingCompletlyNewIDS() function");
        System.out.println("time: \n" + emptyCoreProfiles.time);
        System.out.println("ip: \n" + emptyCoreProfiles.global_quantities.ip);
        
        // some fields are automatically written by AL during 'put' procedure
        // AL adds some information behind your back. This is particularly important
        // in case you want later on find out what particular version of AL was used when data were stored.
        // examples of this type of fields are <ids>/ids_properties/version_put and <ids>/ids_properties/plugins
        // in Java we don't have to delate objects. Java garbage collector will do that for us.

    } catch (Exception e) {
        System.err.println("Following exception occurred\n" + e.getMessage());
        throw e;
    }
}