public static DefaultState GetDefaultState(DateTime?epoch = null)
{
KeplerianCoordinates keplerianCoordinates = new KeplerianCoordinates
{
CoordinateFrame = Frame.EME2000,
Origin = Body.Sun,
Depth = KeplerianDepth.Exact,
};
Coordinates coordinates = new Coordinates
{
Body = Body.Sun,
KeplerianCoordinates = keplerianCoordinates,
};
DefaultState defaultState = new DefaultState
{
CoordinateType = CoordinateType.Keplerian,
Coordinates = coordinates,
};
if (epoch == null)
{
return(defaultState); //FIXME throw exception
}
else
{
GetHelioCentricKeplerianElements(epoch.Value, keplerianCoordinates);
defaultState.Epoch = epoch.Value;
return(defaultState);
}
}
public static DefaultState GetDefaultState(DateTime?epoch = null)
{
CartesianCoordinates cartesianCoordinates = new CartesianCoordinates
{
CoordinateFrame = Frame.EME2000,
Origin = Body.Earth,
};
Coordinates coordinates = new Coordinates
{
Body = Body.Earth,
CartesianCoordinates = new List <CartesianCoordinates>
{
cartesianCoordinates,
},
};
DefaultState defaultState = new DefaultState
{
CoordinateType = CoordinateType.Cartesian,
Coordinates = coordinates,
};
if (epoch == null)
{
return(defaultState); //FIXME
}
else
{
defaultState.Epoch = epoch;
DefaultState earthDefaultState = Earth.GetDefaultState(epoch);
CartesianCoordinates earthCartesian = new CartesianCoordinates
{
Depth = CartesianDepth.Velocity,
};
CoordinateTransformations.ConvertKeplerianToCartesian(earthDefaultState.Coordinates.KeplerianCoordinates, earthCartesian);
earthCartesian.Negative();
cartesianCoordinates = earthCartesian;
cartesianCoordinates.Origin = Body.Earth;
defaultState.Coordinates.CartesianCoordinates = new List <CartesianCoordinates>
{
cartesianCoordinates
};
return(defaultState);
}
}