AbstractAnalyticalGradientConverter.java

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package org.orekit.propagation.analytical;

import org.hipparchus.analysis.differentiation.Gradient;
import org.orekit.propagation.integration.AbstractGradientConverter;
import org.orekit.utils.ParameterDriversProvider;

/**
 * Converter for analytical orbit propagator.
 *
 * @author Bryan Cazabonne
 * @since 11.1
 */
public abstract class AbstractAnalyticalGradientConverter
    extends AbstractGradientConverter implements ParameterDriversProvider {

    /**
     * Constructor.
     * @param propagator analytical orbit propagator
     * @param freeStateParameters number of free parameters
     */
    protected AbstractAnalyticalGradientConverter(final AbstractAnalyticalPropagator propagator,
                                                  final int freeStateParameters) {
        super(freeStateParameters);
        initStates(buildBasicGradientSpacecraftState(propagator.getInitialState(), freeStateParameters,
                                                     propagator.getAttitudeProvider()));

    }

    /**
     * Get the converted analytical orbit propagator.
     * @return the converted analytical orbit propagator
     */
    public abstract FieldAbstractAnalyticalPropagator<Gradient> getPropagator();

}