public void SkyPosition_ParameterlessConstructor_InitializeCoordinatesToZero()
{
var skyPosition = new SkyPosition();
Assert.Equal(0, skyPosition.Dec);
Assert.Equal(0, skyPosition.Ra);
}
public ConstellationLine(double rectascence1, double declination1, double rectascence2, double declination2)
{
this.SkyPosition1 = new SkyPosition();
this.SkyPosition2 = new SkyPosition();
this.SkyPosition1.Rectascence = rectascence1;
this.SkyPosition1.Declination = declination1;
this.SkyPosition2.Rectascence = rectascence2;
this.SkyPosition2.Declination = declination2;
}
public void DistanceInDegrees_InsertSkyPosition_ReturnsDistanceInDegrees()
{
var skyPosition1 = new SkyPosition();
var skyPosition2 = new SkyPosition();
skyPosition2.Ra = 12;
skyPosition2.Dec = 90;
var result = skyPosition1.DistanceInDegrees(skyPosition2);
Assert.Equal(112, result, 0);
}
public void SkyPosition_ConstructorTakingSkyPositionParameter_InitializeCoordinatesAccordingly()
{
var otherSkyPosition = new SkyPosition();
otherSkyPosition.Ra = 37;
otherSkyPosition.Dec = 55;
var skyPosition = new SkyPosition(otherSkyPosition);
Assert.Equal(55, skyPosition.Dec);
Assert.Equal(37, skyPosition.Ra);
}
private DeepSpaceData()
{
this.Stars = new ArrayList();
this.Messier = new ArrayList();
this.Constellation = new ArrayList();
this.ConstellationNames = new ArrayList();
Assembly asembly = Assembly.GetExecutingAssembly();
Stream txtStream = asembly.GetManifestResourceStream("SpaceObjects.Resources.HYG.txt");
StreamReader streamReader = new StreamReader(txtStream);
string delimStr = ";";
char[] delimiter = delimStr.ToCharArray();
NumberFormatInfo provider = new NumberFormatInfo();
provider.NumberDecimalSeparator = ".";
while (streamReader.Peek() >= 0)
{
string[] split = streamReader.ReadLine().Split(delimiter, 20);
Stars.Add(
new Star(
split[0],
split[1],
Convert.ToDouble(split[2], provider) * 15,
Convert.ToDouble(split[3], provider),
Convert.ToDouble(split[4], provider),
split[5]));
}
Stars.TrimToSize();
asembly = Assembly.GetExecutingAssembly();
txtStream = asembly.GetManifestResourceStream("SpaceObjects.Resources.Messier.txt");
streamReader = new StreamReader(txtStream);
while (streamReader.Peek() >= 0)
{
string[] split = streamReader.ReadLine().Split(delimiter, 20);
Messier.Add(new Messier(split[0], Convert.ToDouble(split[1], provider) * 15,
Convert.ToDouble(split[2], provider), split[3], split[4]));
}
Messier.TrimToSize();
asembly = Assembly.GetExecutingAssembly();
txtStream = asembly.GetManifestResourceStream("SpaceObjects.Resources.Constellations.txt");
streamReader = new StreamReader(txtStream);
while (streamReader.Peek() >= 0)
{
string str = streamReader.ReadLine();
if (str[0] != 'C')
{
string[] split = str.Split(delimiter, 20);
Constellation.Add(new ConstellationLine(Convert.ToDouble(split[0], provider) * 15, Convert.ToDouble(split[1], provider),
Convert.ToDouble(split[2], provider) * 15, Convert.ToDouble(split[3], provider)));
}
else
{
string[] split = str.Split(delimiter, 4);
SkyPosition skyPosition = new SkyPosition();
skyPosition.Rectascence = Convert.ToDouble(split[2], provider) * 15;
skyPosition.Declination = Convert.ToDouble(split[3], provider);
ConstellationNames.Add(new ConstellationName(split[1], skyPosition));
}
}
Constellation.TrimToSize();
ConstellationNames.TrimToSize();
}
public ConstellationName(string name, SkyPosition skyPosition)
{
this.Name = name;
this.SkyPosition = skyPosition;
}
/// <summary>
/// This function computes the apparent direction of a star or solar
/// system body at a specified time and in a specified coordinate system
/// </summary>
/// <param name="jdTt"></param>
/// <param name="celestialObject"></param>
/// <param name="observer"></param>
/// <param name="deltaT"></param>
/// <param name="coordinateSystem"></param>
/// <param name="accuracy"></param>
/// <param name="position"></param>
/// <returns></returns>
public static short Place(double jdTt, CelestialObject celestialObject, Observer observer, double deltaT, CoordinateSystem coordinateSystem, Accuracy accuracy, ref SkyPosition position)
{
lock (lockObj) {
var err = NOVAS_Place(jdTt, ref celestialObject, ref observer, deltaT, (short)coordinateSystem, (short)accuracy, ref position);
return(err);
}
}
private static extern short NOVAS_Place(double jdTt, ref CelestialObject celObject, ref Observer observer, double deltaT, short coordinateSystem, short accuracy, ref SkyPosition position);
public double Distance(SkyPosition a, SkyPosition b)
{
return(Distance(a.Rectascence, a.Declination, b.Rectascence, b.Declination));
}