Example usage for org.apache.commons.math3.ode ExpandableStatefulODE addSecondaryEquations

Introduction

In this page you can find the example usage for org.apache.commons.math3.ode ExpandableStatefulODE addSecondaryEquations.

Prototype

public int addSecondaryEquations(final SecondaryEquations secondary) 

Source Link

Document

Add a set of secondary equations to be integrated along with the primary set.

Usage

From source file:org.orekit.propagation.integration.AbstractIntegratedPropagator.java

/** Create an ODE with all equations.
 * @param integ numerical integrator to use for propagation.
 * @return a new ode/*from  w  w  w  .j a va 2  s .  c  o  m*/
 * @exception OrekitException if initial state cannot be mapped
 */
private ExpandableStatefulODE createODE(final AbstractIntegrator integ) throws OrekitException {

    // retrieve initial state
    final double[] initialStateVector = new double[getBasicDimension()];
    stateMapper.mapStateToArray(getInitialState(), initialStateVector);

    // main part of the ODE
    final ExpandableStatefulODE ode = new ExpandableStatefulODE(
            new ConvertedMainStateEquations(getMainStateEquations(integ)));
    ode.setTime(0.0);
    ode.setPrimaryState(initialStateVector);

    // secondary part of the ODE
    for (int i = 0; i < additionalEquations.size(); ++i) {
        final AdditionalEquations additional = additionalEquations.get(i);
        final double[] data = getInitialState().getAdditionalState(additional.getName());
        final SecondaryEquations secondary = new ConvertedSecondaryStateEquations(additional, data.length);
        ode.addSecondaryEquations(secondary);
        ode.setSecondaryState(i, data);
    }

    return ode;

}

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