1 package net.sf.openrocket.optimization.rocketoptimization.parameters;
3 import net.sf.openrocket.document.Simulation;
4 import net.sf.openrocket.l10n.Translator;
5 import net.sf.openrocket.logging.LogHelper;
6 import net.sf.openrocket.optimization.general.OptimizationException;
7 import net.sf.openrocket.optimization.rocketoptimization.OptimizableParameter;
8 import net.sf.openrocket.simulation.FlightDataType;
9 import net.sf.openrocket.simulation.exception.MotorIgnitionException;
10 import net.sf.openrocket.simulation.exception.SimulationCancelledException;
11 import net.sf.openrocket.simulation.exception.SimulationException;
12 import net.sf.openrocket.simulation.exception.SimulationLaunchException;
13 import net.sf.openrocket.simulation.listeners.system.ApogeeEndListener;
14 import net.sf.openrocket.simulation.listeners.system.InterruptListener;
15 import net.sf.openrocket.startup.Application;
16 import net.sf.openrocket.unit.UnitGroup;
19 * An optimization parameter that computes the maximum acceleration during a simulated flight.
21 * @author Sampo Niskanen <sampo.niskanen@iki.fi>
23 public class MaximumAccelerationParameter implements OptimizableParameter {
25 private static final LogHelper log = Application.getLogger();
26 private static final Translator trans = Application.getTranslator();
29 public String getName() {
30 return trans.get("name");
34 public double computeValue(Simulation simulation) throws OptimizationException, InterruptedException {
36 log.debug("Running simulation to evaluate maximum acceleration");
37 simulation.simulate(new ApogeeEndListener(), new InterruptListener());
38 double value = simulation.getSimulatedData().getBranch(0).getMaximum(FlightDataType.TYPE_ACCELERATION_TOTAL);
39 log.debug("Maximum acceleration was " + value);
41 } catch (MotorIgnitionException e) {
42 // A problem with motor ignition will cause optimization to fail
43 throw new OptimizationException(e);
44 } catch (SimulationLaunchException e) {
45 // Other launch exceptions result in zero velocity
47 } catch (SimulationCancelledException e) {
48 throw (InterruptedException) new InterruptedException("Optimization was interrupted").initCause(e);
49 } catch (SimulationException e) {
50 // Other exceptions fail
51 throw new OptimizationException(e);
56 public UnitGroup getUnitGroup() {
57 return UnitGroup.UNITS_ACCELERATION;