git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/optimization/rocketoptimization/parameters/MaximumVelocityParameter.java

   1 package net.sf.openrocket.optimization.rocketoptimization.parameters;
   2
   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;
  17
  18 /**
  19  * An optimization parameter that computes the maximum velocity during a simulated flight.
  20  *
  21  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  22  */
  23 public class MaximumVelocityParameter implements OptimizableParameter {
  24
  25         private static final LogHelper log = Application.getLogger();
  26         private static final Translator trans = Application.getTranslator();
  27
  28         @Override
  29         public String getName() {
  30                 return trans.get("name");
  31         }
  32
  33         @Override
  34         public double computeValue(Simulation simulation) throws OptimizationException, InterruptedException {
  35                 try {
  36                         log.debug("Running simulation to evaluate maximum velocity");
  37                         simulation.simulate(new ApogeeEndListener(), new InterruptListener());
  38                         double value = simulation.getSimulatedData().getBranch(0).getMaximum(FlightDataType.TYPE_VELOCITY_TOTAL);
  39                         log.debug("Maximum velocity was " + value);
  40                         return 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
  46                         return Double.NaN;
  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);
  52                 }
  53         }
  54
  55         @Override
  56         public UnitGroup getUnitGroup() {
  57                 return UnitGroup.UNITS_VELOCITY;
  58         }
  59
  60 }