public void Transform_CelestialToApparentTest(double ra, double dec)
{
//Arrange
var coordinates = new Coordinates(ra, dec, Epoch.J2000, Coordinates.RAType.Hours);
//Act
coordinates = coordinates.Transform(Epoch.JNOW);
var transform = new ASCOM.Astrometry.Transform.Transform();
transform.SetJ2000(ra, dec);
//Check with ascom transformation that the transformation logic matches
Assert.AreEqual(transform.RAApparent, coordinates.RA, 0.0001);
Assert.AreEqual(transform.DECApparent, coordinates.Dec, 0.0001);
}
static public AltAz RaDec2AltAz(RaDec coord, LatLon location, DateTime time, double elevation)
{
var utils = new ASCOM.Astrometry.AstroUtils.AstroUtils();
var MJDdate = utils.CalendarToMJD(time.Day, time.Month, time.Year);
MJDdate += time.TimeOfDay.TotalDays;
var tfm = new ASCOM.Astrometry.Transform.Transform();
tfm.JulianDateTT = MJDdate;
tfm.SiteElevation = elevation * 1000;
tfm.SiteLatitude = location.Lat;
tfm.SiteLongitude = location.Lon;
tfm.SiteTemperature = 0;
tfm.SetJ2000(coord.Ra, coord.Dec);
tfm.Refresh();
var res = new AltAz(tfm.ElevationTopocentric, tfm.AzimuthTopocentric);
return(res);
}
public (double Alt, double Az) ConvertAltAz(double RaHours, double DecHours, double JuliuanDate)
{
transform.SiteLatitude = Convert.ToDouble(Lat.Text);
transform.SiteLongitude = Convert.ToDouble(Long.Text);
transform.SiteElevation = Convert.ToDouble(Elevation.Text);
transform.SiteTemperature = 20.0;
transform.JulianDateTT = JuliuanDate;
//T.SetJ2000(U.HMSToHours("14:15:38.951"), U.DMSToDegrees("19:10:38.06"));
transform.SetJ2000(RaHours, DecHours);
//Console.WriteLine("RA: " + RaHours.ToString() + " DEC: " + DecHours.ToString());
//MsgBox("RA Topo: " & U.HoursToHMS(T.RATopocentric, ":", ":", "", 3) & " DEC Topo: " & U.DegreesToDMS(T.DECTopocentric, ":", ":", "", 3))
Console.WriteLine("Azimuth: " + transform.AzimuthTopocentric.ToString() + " Elevation: " + transform.ElevationTopocentric.ToString());
return(transform.ElevationTopocentric, transform.AzimuthTopocentric);
//'Set arbitary topocentric co-ordinates and read off the corresponding J2000 co-ordinates (site parameters remain the same)
//T.SetTopocentric(11.0, 25.0);
//MsgBox("RA J2000: " & U.HoursToHMS(T.RAJ2000, ":", ":", "", 3) & " DEC J2000: " & U.DegreesToDMS(T.DecJ2000, ":", ":", "", 3))
//'Clean up components
}
public static AltAzm RaDec2AltAzm(Coordinates coord, LatLon location, DateTime time, double elevation)
{
var utils = new ASCOM.Astrometry.AstroUtils.AstroUtils();
var MJDdate = utils.CalendarToMJD(time.Day, time.Month, time.Year);
MJDdate += time.TimeOfDay.TotalDays;
var tfm = new ASCOM.Astrometry.Transform.Transform();
tfm.JulianDateTT = MJDdate;
tfm.SiteElevation = elevation * 1000;
tfm.SiteLatitude = location.Lat;
tfm.SiteLongitude = location.Lon;
tfm.SiteTemperature = 0;
tfm.SetJ2000(coord.Ra, coord.Dec);
tfm.Refresh();
var res = new AltAzm(tfm.ElevationTopocentric, tfm.AzimuthTopocentric);
return res;
}