/// <summary>
/// Get the selected object in TheSkyX
/// </summary>
/// <returns></returns>
public async Task <DeepSkyObject> GetTarget()
{
try {
string response = await Query("GET_TARGET");
response = response.TrimEnd('\r', '\n');
/*
* Split the coordinates and object name from the returned message.
* GET_TARGET returns 4 fields, space-separated:
* RA Dec Name Position_angle
*
* RA and Dec are in radians. Epoch is J2000.
*/
string[] info = response.Split(' ');
if (!(info[0].Equals("?") || string.IsNullOrEmpty(info[2])))
{
Coordinates newCoordinates = new Coordinates(Astrometry.RadianToHour(double.Parse(info[0].Replace(',', '.'), System.Globalization.CultureInfo.InvariantCulture)),
Astrometry.ToDegree(double.Parse(info[1].Replace(',', '.'), System.Globalization.CultureInfo.InvariantCulture)),
Epoch.J2000, Coordinates.RAType.Hours);
DeepSkyObject dso = new DeepSkyObject(info[2], newCoordinates, string.Empty);
return(dso);
}
else
{
throw new PlanetariumObjectNotSelectedException();
}
} catch (Exception ex) {
Logger.Error(ex);
throw ex;
}
}
public void ToDegree_ValueTest()
{
var rad = Math.PI;
var expectedDeg = 180;
var deg = Astrometry.ToDegree(rad);
Assert.AreEqual(expectedDeg, deg);
}
public void CreateByRadiansTest(double inputRadians)
{
var angle = Angle.ByRadians(inputRadians);
var expectedDegree = Astrometry.ToDegree(inputRadians);
var expectedArcmin = Astrometry.DegreeToArcmin(expectedDegree);
var expectedArcsec = Astrometry.DegreeToArcsec(expectedDegree);
var expectedHours = Astrometry.DegreesToHours(expectedDegree);
Assert.AreEqual(expectedHours, angle.Hours, TOLERANCE);
Assert.AreEqual(inputRadians, angle.Radians, TOLERANCE);
Assert.AreEqual(expectedDegree, angle.Degree, TOLERANCE);
Assert.AreEqual(expectedArcmin, angle.ArcMinutes, TOLERANCE);
Assert.AreEqual(expectedArcsec, angle.ArcSeconds, TOLERANCE);
}
public void OperatorMultiplyDoubleTest(double firstDegree, double secondDegree)
{
var secondAngle = Angle.ByDegree(secondDegree);
var angle = Astrometry.ToRadians(firstDegree) * secondAngle;
var expectedRadian = Astrometry.ToRadians(firstDegree) * Astrometry.ToRadians(secondDegree);
var expectedDegree = Astrometry.ToDegree(expectedRadian);
var expectedArcmin = Astrometry.DegreeToArcmin(expectedDegree);
var expectedArcsec = Astrometry.DegreeToArcsec(expectedDegree);
var expectedHours = Astrometry.DegreesToHours(expectedDegree);
Assert.AreEqual(expectedDegree, angle.Degree, TOLERANCE);
Assert.AreEqual(expectedArcmin, angle.ArcMinutes, TOLERANCE);
Assert.AreEqual(expectedArcsec, angle.ArcSeconds, TOLERANCE);
Assert.AreEqual(expectedHours, angle.Hours, TOLERANCE);
Assert.AreEqual(expectedRadian, angle.Radians, TOLERANCE);
}
public void StaticAtan2Test(double xRadians, double yRadians)
{
var xAngle = Angle.ByRadians(xRadians);
var yAngle = Angle.ByRadians(yRadians);
var angle = Angle.Atan2(yAngle, xAngle);
var rad = Math.Atan2(yRadians, xRadians);
var expectedDegree = Astrometry.ToDegree(rad);
var expectedArcmin = Astrometry.DegreeToArcmin(expectedDegree);
var expectedArcsec = Astrometry.DegreeToArcsec(expectedDegree);
var expectedHours = Astrometry.DegreesToHours(expectedDegree);
Assert.AreEqual(expectedHours, angle.Hours, TOLERANCE);
Assert.AreEqual(rad, angle.Radians, TOLERANCE);
Assert.AreEqual(expectedDegree, angle.Degree, TOLERANCE);
Assert.AreEqual(expectedArcmin, angle.ArcMinutes, TOLERANCE);
Assert.AreEqual(expectedArcsec, angle.ArcSeconds, TOLERANCE);
}
/// <summary>
/// Return the configured user location from HNSKY
/// </summary>
/// <returns></returns>
public async Task <Coords> GetSite()
{
try {
var response = await Query("GET_LOCATION");
response = response.TrimEnd('\r', '\n');
/*
* Split the latitude and longitude from the returned message.
* GET_LOCATION returns 3 fields, space-separated:
* Latitude Longitude Julian_Date
*
* Latitude and Logitude are in radians.
*/
var info = response.Split(' ');
if (!(info[0].Equals("?") || string.IsNullOrEmpty(info[1])))
{
/*
* East is negative and West is positive in HNSKY.
* We must flip longitude's sign here.
*/
var loc = new Coords {
Latitude = Astrometry.ToDegree(double.Parse(info[1].Replace(',', '.'), System.Globalization.CultureInfo.InvariantCulture)),
Longitude = Astrometry.ToDegree(double.Parse(info[0].Replace(',', '.'), System.Globalization.CultureInfo.InvariantCulture)) * -1,
Elevation = 0
};
return(loc);
}
else
{
throw new PlanetariumFailedToGetCoordinates();
}
} catch (Exception ex) {
Logger.Error(ex);
throw ex;
}
}
/// <summary>
/// Extract result out of generated .axy file. File consists of three rows
/// 1. row: RA,Dec,Code
/// 2. row: Scale,Orientation,?,?,Stars
/// </summary>
/// <returns>PlateSolveResult</returns>
protected override PlateSolveResult ReadResult(
string outputFilePath,
PlateSolveParameter parameter,
PlateSolveImageProperties imageProperties)
{
PlateSolveResult result = new PlateSolveResult()
{
Success = false
};
if (File.Exists(outputFilePath))
{
using (var s = new StreamReader(outputFilePath)) {
string line;
int linenr = 0;
while ((line = s.ReadLine()) != null)
{
string[] resultArr = line.Split(',');
if (linenr == 0)
{
if (resultArr.Length > 2)
{
double ra, dec;
int status;
if (resultArr.Length == 5)
{
/* workaround for when decimal separator is comma instead of point.
* won't work when result contains even numbers tho... */
status = int.Parse(resultArr[4]);
if (status != 1)
{
/* error */
result.Success = false;
break;
}
ra = double.Parse(resultArr[0] + "." + resultArr[1], CultureInfo.InvariantCulture);
dec = double.Parse(resultArr[2] + "." + resultArr[3], CultureInfo.InvariantCulture);
}
else
{
status = int.Parse(resultArr[2]);
if (status != 1)
{
/* error */
result.Success = false;
break;
}
ra = double.Parse(resultArr[0], CultureInfo.InvariantCulture);
dec = double.Parse(resultArr[1], CultureInfo.InvariantCulture);
}
/* success */
result.Success = true;
result.Coordinates = new Coordinates(Astrometry.ToDegree(ra), Astrometry.ToDegree(dec), Epoch.J2000, Coordinates.RAType.Degrees);
}
}
if (linenr == 1)
{
if (resultArr.Length > 2)
{
if (resultArr.Length > 5)
{
/* workaround for when decimal separator is comma instead of point.
* won't work when result contains even numbers tho... */
result.Pixscale = double.Parse(resultArr[0] + "." + resultArr[1], CultureInfo.InvariantCulture);
result.Orientation = double.Parse(resultArr[2] + "." + resultArr[3], CultureInfo.InvariantCulture);
result.Flipped = !(double.Parse(resultArr[4] + "." + resultArr[5], CultureInfo.InvariantCulture) < 0);
if (result.Flipped)
{
result.Orientation = result.Orientation - 180;
}
}
else
{
result.Pixscale = double.Parse(resultArr[0], CultureInfo.InvariantCulture);
result.Orientation = double.Parse(resultArr[1], CultureInfo.InvariantCulture);
result.Flipped = !(double.Parse(resultArr[2], CultureInfo.InvariantCulture) < 0);
if (result.Flipped)
{
result.Orientation = result.Orientation - 180;
}
}
}
}
linenr++;
}
}
}
return(result);
}
