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;
}
public static Coordinates AltAzm2RaDec(AltAzm altAzm, 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.SetAzimuthElevation(altAzm.Azm, altAzm.Alt);
tfm.Refresh();
var res = new Coordinates(tfm.RAJ2000, tfm.DecJ2000);
return res;
}
public override void GoToPosition(AltAzm pos)
{
var buf = this.DoubleToBytes(pos.Alt);
if (pos.Azm < 10 || pos.Azm > 170)//Unsafe Azm position
{
if (pos.Alt < 90 || pos.Alt > 270)
throw new InvalidValueException("Azimuth position is out of safety range");
// Move Alt axis to safe position before moving Azm axis to unsafe position
this.SendCommandToDevice(DeviceID.DecAltMotor, DeviceCommands.MC_GOTO_FAST, 0, buf);
var tBeginMove = Environment.TickCount;
while (true)
{
Thread.Sleep(100);
if (this.IsSlewDone(DeviceID.DecAltMotor)) break;
if (tBeginMove + 60000 < Environment.TickCount)
throw new DriverException("Can not move Alt axis to save position");
}
}
else
{
this.SendCommandToDevice(DeviceID.DecAltMotor, DeviceCommands.MC_GOTO_FAST, 0, buf);
}
buf = this.DoubleToBytes(pos.Azm);
this.SendCommandToDevice(DeviceID.RaAzmMotor, DeviceCommands.MC_GOTO_FAST, 0, buf);
}
private void ProcessAltAzm(AltAzm newVal, AltAzm oldVal, int time)
{
if (this.lastAltAzm > 0)
{
var RaRate = this.GetRateRa(this.tp.TrackingRate, this.tp.TrackingMode);
var dT = time - this.lastAltAzm;
var azm = /*Const.TRACKRATE_SIDEREAL -*/ (newVal.Azm - oldVal.Azm)*1000/dT;
var dec = (newVal.Alt - oldVal.Alt)*1000/dT;
this.AzmValues.Add(azm, Const.TRACKRATE_SIDEREAL - RaRate);
// var azmf = kfilt.Correct(azm);
if (azm.Equals(0d))
this.setTrackingRate(this.tp.TrackingRate, this.tp.TrackingMode);
Debug.WriteLine(string.Format("[{0}] azm={1,-12} azmVal={2,9:f6} sco={3,9:f6} sMed={4,9:f6} sSco={5,9:f6} med={6,9:f6}", DateTime.Now,
DMS.FromDeg(newVal.Azm).ToString(":"),
azm, this.AzmValues.sco, this.AzmValues.cMed, this.AzmValues.cSco , this.AzmValues.Median));
}
else
{
//kfilt.SetState(newVal.Azm, 0.0);
}
this.lastAltAzm = time;
}
public void Sync(AltAzm coord)
{
lock (_sync)
{
ti.SyncAltAz(coord);
}
}
public bool Slew(AltAzm coord)
{
this.CheckPark();
if (this.telescopeMode != TelescopeMode.Normal) return false;
this.tp.IsAtHome = false;
lock (_sync)
{
SlewWaitHandle.Reset();
this.ti.AltAzm = coord;
this.telescopeMode = TelescopeMode.Slewing;
Thread.Sleep(300);
}
return true;
}
