public async Task PointSkyObject(StellarObjectDesignation stellarObjectDesignation)
{
var observer = new Observer
{
Latitude = 45.42546991419586,
Longitude = 23.9497447013855,
Altitude = 595
};
double epoch = GetJulianDate(DateTime.Now);
PlanetCoordinates planetCoordinates = await GetPlanetCoordinates(stellarObjectDesignation, epoch, observer);
var rightAscension = new RightAscension();
rightAscension.ConvertFromArcSec(planetCoordinates.RightAscensionInArcSec);
var declination = new Declination();
declination.ConvertFromArcSec(planetCoordinates.DeclinationInArcSec);
CelestialCoordinates celestialCoordinates = EquatorialCoordinatesConverter.ToCelestialCoordinates(
rightAscension.Longitude,
declination.Latitude,
observer.Latitude,
observer.Longitude);
double roundedAltitude = Math.Round(celestialCoordinates.Altitude);
double roundedAzimuth = Math.Round(celestialCoordinates.Azimuth);
double servoMotorValue = roundedAltitude;
if (servoMotorValue > 0)
{
servoMotorValue += 90;
}
else
{
servoMotorValue = 90 - Math.Abs(servoMotorValue);
}
using var serialPort = new SerialPort
{
PortName = SerialPort.GetPortNames().First(),
BaudRate = 9600,
Parity = Parity.None,
StopBits = StopBits.One,
DataBits = 8,
Handshake = Handshake.None,
RtsEnable = true
};
serialPort.Open();
var command = $"<S{roundedAzimuth};A{servoMotorValue};B{servoMotorValue};C{servoMotorValue}>";
serialPort.WriteLine(command);
}
private async Task <PlanetCoordinates> GetPlanetCoordinates(StellarObjectDesignation stellarObjectDesignation,
double epochInJulianDate,
Observer observer)
{
using var httpClient = new HttpClient();
string apiUrl = ephemerisApiUrlBuilder
.AddName(stellarObjectDesignation)
.AddEpoch(epochInJulianDate)
.AddJsonMime()
.AddObserver(observer)
.AddCoordinateTypeOne()
.AddEphemerisTypeTwo()
.Build();
HttpResponseMessage planetCoordinatesResponse = await httpClient.GetAsync(apiUrl);
planetCoordinatesResponse.EnsureSuccessStatusCode();
string planetCoordinatesResponseBody = await planetCoordinatesResponse.Content.ReadAsStringAsync();
var planetCoordinatesBody =
JsonSerializer.Deserialize <PlanetCoordinatesBodyResponse>(planetCoordinatesResponseBody);
return(planetCoordinatesBody.PlanetCoordinates.First());
}
public EphemerisApiUrlBuilder AddName(StellarObjectDesignation stellarObjectDesignation)
{
apiUrlBuilder.Append($"-name={stellarObjectDesignation.Prefix}:{stellarObjectDesignation.Name}&");
return(this);
}
public Task PointStellarObject([FromBody] StellarObjectDesignation stellarObjectDesignation)
{
return(serialWriter.PointSkyObject(stellarObjectDesignation));
}