public void SliderChanged(bool value)
{
PatchedConicXfer conicXfer = (PatchedConicXfer)transfer;
float lambda = lambdaSlider.value;
lambdaValue.text = string.Format("{0:0.0}", lambdaSlider.value);
transfer = conicXfer.CreateTransferCopy(lambda);
UpdateUI(transfer);
}
/// <summary>
/// Initiate a transfer of the spaceship to the moon. The name of the targets[] entry that is the moon
/// is provided as a string argument.
///
/// Typically called by the GEConsole.
/// </summary>
public string MoonTransfer(string moonName, float angle)
{
// Find xfer choices and present to user
OrbitData shipOrbit = new OrbitData();
shipOrbit.SetOrbit(spaceshipCtrl.GetNBody(), centralMass);
OrbitData targetOrbit = new OrbitData();
targetOrbit.SetOrbit(GetTargetByName(moonName), centralMass);
OrbitTransfer xfer = new PatchedConicXfer(shipOrbit, targetOrbit, angle);
spaceshipCtrl.SetTransfer(xfer);
SetState(State.MANEUVER);
// display the maneuver in the console (will only be one for patched conic)
return(xfer.GetManeuvers()[0].LogString() + "\n");
}
public string MoonPreview(string moonName, float lambda1, bool async)
{
// Step 1: Determine the patched conic xfer
OrbitData shipOrbit = new OrbitData();
NBody shipNbody = spaceshipCtrl.GetNBody();
shipOrbit.SetOrbit(shipNbody, centralMass);
OrbitData moonOrbit = new OrbitData();
NBody moonNbody = GetTargetByName(moonName);
moonOrbit.SetOrbit(moonNbody, centralMass);
OrbitTransfer xfer = new PatchedConicXfer(shipOrbit, moonOrbit, lambda1);
// Step 2: Make a copy of the universe state and evolve forward to find min distance to
// moon.
GravityEngine ge = GravityEngine.Instance();
GravityState gs = ge.GetGravityStateCopy();
// there is only one maneuver to add
gs.maneuverMgr.Add(xfer.GetManeuvers()[0]);
// run a simulation and find the closest approach (Expensive!)
LunarCourseCorrection lcc = new LunarCourseCorrection(shipNbody, moonNbody);
// want to be within 10% of Earth-Moon distance, before start checking
courseCorrectionData = new LunarCourseCorrection.CorrectionData();
courseCorrectionData.gravityState = gs;
courseCorrectionData.approachDistance = 0.1f * moonOrbit.a;;
courseCorrectionData.correction = 0;
courseCorrectionData.maxPhysTime = time_to_moon_phys;
// Direct (unthreaded) calculation
if (async)
{
lcc.ClosestApproachAsync(courseCorrectionData, MoonPreviewCompleted);
return("Calculation started...\n");
}
else
{
predictedDistance = lcc.ClosestApproach(courseCorrectionData);
return(string.Format("Patched Conic with lambda={0} => approach={1}\n", lambda1, predictedDistance));
}
}
public PatchedConicXfer CreateTransferCopy(double lambda1Deg)
{
PatchedConicXfer newXfer = new PatchedConicXfer(this.fromOrbit, this.toOrbit, lambda1Deg);
return(newXfer);
}
