public Form1()
{
planet = new Planet(0, 9.81, 67000, new VRageMath.Vector3D(0, 0, 0));
orbit2 = new Orbit(new VRageMath.Vector3D(100000, 0, 0), new VRageMath.Vector3D(0, planet.GetOrbitalVelocity(100000, (100000 + 100000) / 2), 0), planet);
orbit = new Orbit(new VRageMath.Vector3D(0, 140000, 0), new VRageMath.Vector3D(-planet.GetOrbitalVelocity(140000, (100000 + 140000) / 2), 0, 0), planet);
//Console.WriteLine(planet.GetOrbitalVelocity(2000000,1035000));
epoc = orbit.epoch;
Console.WriteLine(planet.GetOrbitalVelocity(100000, (100000 + 100000) / 2));
man = (Maneuver.GetHohmannTransfer (orbit, orbit2, orbit.TrueAnomaly2(0)));
InitializeComponent();
}
public static Maneuver GetHohmannTransfer(Orbit orbit1,Orbit orbit2,double t) {
Vector3D pos1;
Vector3D vel1;
Vector3D pos2;
Vector3D vel2;
double now = 0;
double deltaV=0;
double TransferTime = Math.PI * Math.Sqrt(Math.Pow((orbit1.a + orbit2.a), 3) / (8 * orbit1.planet.u));
double h2 = Math.Sqrt(orbit1.planet.u/Math.Pow(orbit2.a,3));
double angle = Orbit.RadtoDeg(Math.PI - h2 * TransferTime);
bool test = true;
Vector3D dir = new Vector3D(0,0,-1);
//for (int k = 0; k < 6; k++) {
if (test == false)
{
//break;
}
for (int i = (int)t; i < t + 36000; i++)
{
orbit1.KepToCartAtTrueAnomaly(out pos1, out vel1, Orbit.DegtoRad(i));
orbit2.KepToCartAtTrueAnomaly(out pos2, out vel2, Orbit.DegtoRad(i));
pos1.Normalize();
pos2.Normalize();
double ang = Orbit.RadtoDeg(orbit1.GetPhaseAngleTrueAnomaly(orbit2, Orbit.DegtoRad(i)));
if (ang <= angle + 1 && ang >= angle - 1)
{
now = i;
// if (k >= 4)
//{
MatrixD directions = GetDirections(pos1, vel1);
dir = Vector3D.Transform(dir, directions);
// }
orbit1.KepToCartAtTrueAnomaly(out pos1, out vel1, Orbit.DegtoRad(i));
orbit2.KepToCart(out pos2, out vel2, orbit1.TimeOfTrueAnomaly(Orbit.DegtoRad(i)) + TransferTime);
double r1 = pos1.Length();
double r2 = pos2.Length();
deltaV = orbit1.planet.GetOrbitalVelocity(r1, (r1 + r2) / 2) - (vel1.Length()); //Math.Sqrt(orbit1.planet.u / r1) * (Math.Sqrt((2 * r2) / (r2 + r1)) - 1);
TransferTime = Math.PI * Math.Sqrt(Math.Pow((r1 + r2), 3) / (8 * orbit1.planet.u));
angle = Orbit.RadtoDeg(Math.PI - h2 * TransferTime);
test = false;
break;
}
}
// }
//Console.WriteLine(angle + " Found ang");
Maneuver man = new Maneuver(Orbit.DegtoRad(now), dir, deltaV);
return man;
}
