/// <summary>
/// Get the selected object in CdC
/// </summary>
/// <returns></returns>
public async Task <DeepSkyObject> GetTarget()
{
try {
var response = await Query("GETSELECTEDOBJECT");
if (!response.StartsWith("OK!"))
{
throw new PlanetariumObjectNotSelectedException();
}
var columns = response.Split('\t');
// An "OK!" response with fewer than 2 columns means that CdC is listening ok but the user has not selected an object.
if (columns.Count() < 2)
{
throw new PlanetariumObjectNotSelectedException();
}
if (!Match(columns[0].Replace("OK!", ""), @"(([0-9]{1,2})([h|:]|[?]{2})([0-9]{1,2})([m|:]|[?]{2})?([0-9]{1,2}(?:\.[0-9]+){0,1})?([s|:]|[?]{2}))", out var raString))
{
throw new PlanetariumObjectNotSelectedException();
}
var ra = Astrometry.HMSToDegrees(raString);
if (!Match(columns[1], @"([\+|-]([0-9]{1,2})([d|°|:]|[?]{2})([0-9]{1,2})([m|'|:]|[?]{2})?([0-9]{1,2}(?:\.[0-9]+){0,1})?([s|""|:]|[?]{2}))", out var decString))
{
throw new PlanetariumObjectNotSelectedException();
}
var dec = Astrometry.DMSToDegrees(decString);
if (!Match(columns.Last(), @"(?<=Equinox:).*", out var equinox))
{
throw new PlanetariumObjectNotSelectedException();
}
equinox = equinox.Replace("\r", "").Replace("\n", "");
var coordinates = new Coordinates(Angle.ByDegree(ra), Angle.ByDegree(dec), equinox.ToLower() == "now" ? Epoch.JNOW : Epoch.J2000);
var dso = new DeepSkyObject(columns[3].Trim(), coordinates.Transform(Epoch.J2000), string.Empty);
return(dso);
} catch (Exception ex) {
Logger.Error(ex);
throw ex;
}
}
public void HMSToDegrees(string hms, double expected)
{
var value = Astrometry.HMSToDegrees(hms);
Assert.AreEqual(expected, value, ANGLE_TOLERANCE);
}