public static PlanetPosition NorthSouthNode(double jul_ut, PlanetId id, SeFlg flag)
{
if (id != PlanetId.SE_NORTHNODE && id != PlanetId.SE_SOUTHNODE)
{
throw new Exception("Wrong parameter of " + id.ToString());
}
double[] xnasc = new double[6];
double[] xndsc = new double[6];
double[] xperi = new double[6];
double[] xaphe = new double[6];
String errorMsg = "";
if (swe_nod_aps_ut(jul_ut, PlanetId.SE_MOON, flag, 0, xnasc, xndsc, xperi, xaphe, errorMsg) == SeFlg.ERR)
{
DateTime utc = SweWrapper.UtcFromJulianDay(jul_ut);
Console.WriteLine(String.Format("Error for {0}@{1} with Flag of {2}: {3}", id, utc, SeFlg.DEFAULT, errorMsg));
return(null);
}
else
{
PlanetPosition nodePos = new PlanetPosition(id, (id == PlanetId.SE_NORTHNODE) ? xnasc : xndsc);
return(nodePos);
}
}
public static PlanetPosition PositionOf(double jul_ut, PlanetId id, SeFlg flag)
{
double[] result = new double[6];
String errorMsg = "";
SeFlg retFlag = SeFlg.ERR;
if (id < PlanetId.SE_NORTHNODE)
{
retFlag = swe_calc_ut(jul_ut, id, flag, result, errorMsg);
if (retFlag == SeFlg.ERR)
{
DateTime utc = SweWrapper.UtcFromJulianDay(jul_ut);
Console.WriteLine(String.Format("Error for {0}@{1} with Flag of {2}: {3}", id, utc, SeFlg.DEFAULT, errorMsg));
return(null);
}
else
{
if (retFlag != flag)
{
Console.WriteLine(((SeFlg)retFlag).ToString());
}
return(new PlanetPosition(id, result));
}
}
else
{
return(NorthSouthNode(jul_ut, id, flag));
}
}
public static List <Angle> GetObliquityNutation(Double jul_ut)
{
double[] result = new double[6];
String errorMsg = "";
SeFlg retFlag = swe_calc_ut(jul_ut, PlanetId.SE_ECL_NUT, SeFlg.DEFAULT, result, errorMsg);
if (retFlag == SeFlg.ERR)
{
DateTime utc = SweWrapper.UtcFromJulianDay(jul_ut);
return(null);
}
else
{
//Console.WriteLine(((SeFlg)retFlag).ToString());
List <Angle> angles = new List <Angle>();
Angle trueObliquity = new Angle(result[0]);
Angle meanObliquity = new Angle(result[1]);
Angle nutationLongitude = new Angle(result[2]);
Angle nutationObliquity = new Angle(result[3]);
angles.Add(trueObliquity);
angles.Add(meanObliquity);
angles.Add(nutationLongitude);
angles.Add(nutationObliquity);
return(angles);
}
}
//public DateTime GetEventTime()
//{
// Double expected = DegreesExpected;
// double jul = referencePoint;
// PlanetPosition interiorPos, exterirorPos;
// double angle, orb, speed, step = 100.0, inPos, exPos;
// for (int tryCount = 0; tryCount < maxTry; tryCount ++ )
// {
// interiorPos = SweWrapper.PositionOf(jul, Interior, SeFlg.SEFLG_SPEED);
// exterirorPos = SweWrapper.PositionOf(jul, Exterior, SeFlg.SEFLG_SPEED);
// inPos = interiorPos.Rectascension.Degrees;
// exPos = exterirorPos.Rectascension.Degrees;
// angle =( inPos - exPos + 360) % 360.0;
// orb = ( (angle > 180.0) ? 360.0-expected : expected) - angle;
// speed = interiorPos.LongVelo.Degrees - exterirorPos.LongVelo.Degrees;
// if (!cachedAspects.ContainsKey(jul))
// cachedAspects.Add(jul, angle);
// if (Math.Abs(orb) < Negligible)
// return SweWrapper.UtcFromJulianDay(jul);
// step = orb / speed;
// jul += step;
// //step = Math.Min(step / 2.0, Math.Abs(orb / speed));
// //if (orb * speed * (inPos-exPos) > 0)
// // jul += step;
// //else
// // jul -= step;
// }
// return getClosestFromCache();
//}
public Phenomenon PhenomenonNearby()
{
Double expected = similarAspectDegrees(cachedAspects[referencePoint]);
double jul = referencePoint;
PlanetPosition interiorPos, exterirorPos;
double angle, orb, speed, step = 100.0, inPos, exPos;
for (int tryCount = 0; tryCount < maxTry; tryCount++)
{
interiorPos = SweWrapper.PositionOf(jul, Interior, SeFlg.SEFLG_SPEED);
exterirorPos = SweWrapper.PositionOf(jul, Exterior, SeFlg.SEFLG_SPEED);
inPos = interiorPos.Rectascension.Degrees;
exPos = exterirorPos.Rectascension.Degrees;
angle = (inPos - exPos + 360) % 360.0;
orb = ((angle > 180.0) ? 360.0 - expected : expected) - angle;
speed = interiorPos.LongVelo.Degrees - exterirorPos.LongVelo.Degrees;
if (!cachedAspects.ContainsKey(jul))
{
cachedAspects.Add(jul, angle);
}
if (Math.Abs(orb) < Negligible)
{
return(new Phenomenon(SweWrapper.UtcFromJulianDay(jul),
new RelationKind(Interior, Exterior, Aspect.AspectTypeOf(expected)), inPos, exPos));
//return SweWrapper.UtcFromJulianDay(jul);
}
step = orb / speed;
jul += step;
//step = Math.Min(step / 2.0, Math.Abs(orb / speed));
//if (orb * speed * (inPos-exPos) > 0)
// jul += step;
//else
// jul -= step;
}
return(null);
}
private DateTime getClosestFromCache(Double expected)
{
double closestDate = 0;
double minOrb = 5.0;
double orb;
foreach (KeyValuePair <double, double> kvp in cachedAspects)
{
orb = Math.Abs(kvp.Value);
orb = (orb >= expected) ? orb - expected : expected - orb;
if (minOrb > orb)
{
closestDate = kvp.Key;
minOrb = orb;
}
}
return(SweWrapper.UtcFromJulianDay(closestDate));
}
public static void CalcPhenomenon(DateTime utcMoment, PlanetId ipl, SeFlg flag)
{
double jul_ut = ToJulianDay(utcMoment);
double[] result = new double[20];
String errorMsg = "";
SeFlg retFlag = SeFlg.ERR;
retFlag = swe_pheno_ut(jul_ut, ipl, flag, result, errorMsg);
if (retFlag == SeFlg.ERR)
{
DateTime utc = SweWrapper.UtcFromJulianDay(jul_ut);
Console.WriteLine(String.Format("Error for {0}@{1} with Flag of {2}: {3}", ipl, utc, SeFlg.DEFAULT, errorMsg));
}
else
{
/// * attr[0] = phase theAngle (earth-planet-sun)
/// * attr[1] = phase (illumined fraction of disc)
/// * attr[2] = elongation of planet
/// * attr[3] = apparent diameter of disc
/// * attr[4] = apparent magnitude
/// * attr[5] = geocentric horizontal parallax (Moon)
DateTime utc = SweWrapper.UtcFromJulianDay(jul_ut);
StringBuilder sb = new StringBuilder();
sb.AppendFormat("{0} at {1}", ipl, utc);
sb.AppendFormat("PhaseAngle = {0}, Phase={1}, Elongation={2}, Diameter={3}, Magnitude={4}, Parallax={5}",
result[0], result[1], result[2], result[3], result[4], result[5]);
for (int i = 6; i < 20; i++)
{
sb.AppendFormat("result[{0}] = {1}\t", i, result[i]);
if ((i - 6) % 5 == 4)
{
sb.AppendLine();
}
}
Console.Write(sb.ToString());
}
}