internal AbsFluxSpectra(AbsFluxInputFile inputFile)
{
InputFile = inputFile;
IsComplete = false;
if (!string.IsNullOrEmpty(inputFile.Target))
{
// First try to read the target from the export
m_DisplayName = inputFile.Target;
m_ExtractedStarName = null;
}
else
{
// Then try to parse the star from the file
Match match = STAR_DESIGNATION_REGEX.Match(inputFile.FileName);
if (match.Success && !string.IsNullOrEmpty(match.Value))
{
m_ExtractedStarName = match.Value.Replace('_', ' ').Replace(" ", " ").Trim();
m_DisplayName = m_ExtractedStarName;
}
}
HasObjectCoordinates = !float.IsNaN(inputFile.Latitude) && !float.IsNaN(inputFile.Longitude) &&
!float.IsNaN(inputFile.RAHours) && !float.IsNaN(inputFile.DEDeg);
HasObservationTime = inputFile.Epoch != DateTime.MinValue;
if (HasObservationTime && HasObjectCoordinates)
{
// If we have the center of the field saved in the export then identify the standard star by the position
List <CalSpecStar> standardsInOneDegreeRadius = CalSpecDatabase.Instance.Stars.Where(x => AngleUtility.Elongation(x.RA_J2000_Hours * 15, x.DE_J2000_Deg, InputFile.RAHours * 15, InputFile.DEDeg) < 1).ToList();
if (standardsInOneDegreeRadius.Count == 1)
{
m_CalSpecStar = standardsInOneDegreeRadius[0];
m_DisplayName = m_CalSpecStar.AbsFluxStarId;
IsComplete = true;
PlotSpectra = true;
}
}
if (inputFile.Epoch > DateTime.MinValue)
{
m_DisplayName += string.Format(" ({0} UT)", inputFile.Epoch.ToString("HH:mm"));
}
if (string.IsNullOrEmpty(m_DisplayName))
{
m_DisplayName = Path.GetFileNameWithoutExtension(inputFile.FileName);
}
DataFromWavelength = (int)Math.Ceiling(inputFile.Wavelengths[0]);
DataFromWavelength = (int)Math.Floor(inputFile.Wavelengths[inputFile.Wavelengths.Count - 1]);
}
internal CalSpecDatabase(BinaryReader reader)
{
int count = reader.ReadInt32();
Stars.Clear();
for (int i = 0; i < count; i++)
{
var star = new CalSpecStar(reader);
Stars.Add(star);
}
}
internal CalSpecDatabase(BinaryReader reader)
{
int count = reader.ReadInt32();
Stars.Clear();
for (int i = 0; i < count; i++)
{
var star = new CalSpecStar(reader);
Stars.Add(star);
}
}
internal AbsFluxSpectra(AbsFluxInputFile inputFile)
{
InputFile = inputFile;
IsComplete = false;
if (!string.IsNullOrEmpty(inputFile.Target))
{
// First try to read the target from the export
m_DisplayName = inputFile.Target;
m_ExtractedStarName = null;
}
else
{
// Then try to parse the star from the file
Match match = STAR_DESIGNATION_REGEX.Match(inputFile.FileName);
if (match.Success && !string.IsNullOrEmpty(match.Value))
{
m_ExtractedStarName = match.Value.Replace('_', ' ').Replace(" ", " ").Trim();
m_DisplayName = m_ExtractedStarName;
}
}
HasObjectCoordinates = !float.IsNaN(inputFile.Latitude) && !float.IsNaN(inputFile.Longitude) &&
!float.IsNaN(inputFile.RAHours) && !float.IsNaN(inputFile.DEDeg);
HasObservationTime = inputFile.Epoch != DateTime.MinValue;
if (HasObservationTime && HasObjectCoordinates)
{
// If we have the center of the field saved in the export then identify the standard star by the position
List<CalSpecStar> standardsInOneDegreeRadius = CalSpecDatabase.Instance.Stars.Where(x => AngleUtility.Elongation(x.RA_J2000_Hours * 15, x.DE_J2000_Deg, InputFile.RAHours * 15, InputFile.DEDeg) < 1).ToList();
if (standardsInOneDegreeRadius.Count == 1)
{
m_CalSpecStar = standardsInOneDegreeRadius[0];
m_DisplayName = m_CalSpecStar.AbsFluxStarId;
IsComplete = true;
PlotSpectra = true;
}
}
if (inputFile.Epoch > DateTime.MinValue)
m_DisplayName += string.Format(" ({0} UT)", inputFile.Epoch.ToString("HH:mm"));
if (string.IsNullOrEmpty(m_DisplayName))
m_DisplayName = Path.GetFileNameWithoutExtension(inputFile.FileName);
DataFromWavelength = (int)Math.Ceiling(inputFile.Wavelengths[0]);
DataFromWavelength = (int)Math.Floor(inputFile.Wavelengths[inputFile.Wavelengths.Count - 1]);
}
private void BuildCalSpecDb()
{
var db = new CalSpecDatabase();
int totalBad = 0;
string[] lines2 = File.ReadAllLines(@"F:\WORK\tangra3\Tangra 3\VideoOperations\Spectroscopy\AbsFluxCalibration\Standards\AbsFlux-TangraStars.csv");
for (int i = 1; i < lines2.Length; i++)
{
string[] tokens = lines2[i].Split(',');
string calSpecId = tokens[0].Trim();
string RA_FK5_Hours = tokens[1].Trim();
string DEG_FK5_Deg = tokens[2].Trim();
string pmRA = tokens[3].Trim();
string pmDec = tokens[4].Trim();
string specType = tokens[5].Trim();
string magV = tokens[6].Trim();
string magBV = tokens[7].Trim();
string absFluxId = tokens[8].Trim();
string stisFlag = tokens[9].Trim();
string fitsFilePath = tokens[10].Trim();
int stisFrom = int.Parse(tokens[11].Trim());
int stisTo = int.Parse(tokens[12].Trim());
string tyc2 = tokens[13].Trim();
string ucac4 = tokens[14].Trim();
if (!string.IsNullOrEmpty(pmRA) && !string.IsNullOrEmpty(pmDec))
{
var star = new CalSpecStar()
{
CalSpecStarId = calSpecId,
AbsFluxStarId = absFluxId,
STIS_Flag = stisFlag,
FITS_File = fitsFilePath,
TYC2 = tyc2,
U4 = ucac4,
pmRA = double.Parse(pmRA),
pmDE = double.Parse(pmDec),
MagV = double.Parse(magV),
MagBV = double.Parse(magBV),
SpecType = specType,
RA_J2000_Hours = AstroConvert.ToRightAcsension(RA_FK5_Hours),
DE_J2000_Deg = AstroConvert.ToDeclination(DEG_FK5_Deg)
};
string filePath = Path.GetFullPath(@"Z:\CALSPEC\current_calspec\" + fitsFilePath);
using (var bf = new BufferedFile(filePath, FileAccess.Read, FileShare.ReadWrite))
{
var fitsFile = new Fits();
fitsFile.Read(bf);
BasicHDU imageHDU = fitsFile.GetHDU(1);
var table = (ColumnTable)imageHDU.Data.DataArray;
double[] wavelengths = (double[])table.Columns[0];
float[] fluxes = (float[])table.Columns[1];
short[] goodnessFlags = (short[])table.Columns[5];
for (int j = 0; j < fluxes.Length; j++)
{
if (wavelengths[j] < stisFrom)
{
continue;
}
if (wavelengths[j] > stisTo)
{
break;
}
if (goodnessFlags[j] != 0)
{
star.DataPoints.Add(wavelengths[j], fluxes[j]);
}
else
{
totalBad++;
}
}
fitsFile.Close();
}
db.Stars.Add(star);
}
}
using (var compressedStream = new FileStream(@"F:\WORK\tangra3\Tangra 3\VideoOperations\Spectroscopy\AbsFluxCalibration\Standards\CalSpec.db", FileMode.CreateNew, FileAccess.Write))
using (var deflateStream = new DeflateStream(compressedStream, CompressionMode.Compress, true))
{
using (var writer = new BinaryWriter(deflateStream))
{
db.Serialize(writer);
}
}
using (var compressedStream = new FileStream(@"F:\WORK\tangra3\Tangra 3\VideoOperations\Spectroscopy\AbsFluxCalibration\Standards\CalSpec.db", FileMode.Open, FileAccess.Read))
using (var deflateStream = new DeflateStream(compressedStream, CompressionMode.Decompress, true))
{
using (var reader = new BinaryReader(deflateStream))
{
var db2 = new CalSpecDatabase(reader);
Trace.WriteLine(db2.Stars.Count);
}
}
MessageBox.Show(totalBad.ToString() + " bad entries excluded.");
string[] fitsFiles = Directory.GetFiles(@"Z:\CALSPEC\current_calspec", "*.fit");
var dist = new Dictionary <int, int>();
foreach (string filePath in fitsFiles)
{
using (var bf = new BufferedFile(filePath, FileAccess.Read, FileShare.ReadWrite))
{
var fitsFile = new Fits();
fitsFile.Read(bf);
var bld = new StringBuilder();
BasicHDU headerHDU = fitsFile.GetHDU(0);
BasicHDU imageHDU = fitsFile.GetHDU(1);
for (int i = 0; i < headerHDU.Header.NumberOfCards; i++)
{
string cardString = headerHDU.Header.GetCard(i);
bld.AppendFormat("# {0}\r\n", cardString);
}
for (int i = 0; i < imageHDU.Header.NumberOfCards; i++)
{
string cardString = imageHDU.Header.GetCard(i);
bld.AppendFormat("# {0}\r\n", cardString);
}
var table = (ColumnTable)imageHDU.Data.DataArray;
if (table.Columns.Length == 7 &&
table.Columns[0] is double[] && table.Columns[1] is float[] && table.Columns[2] is float[] && table.Columns[3] is float[] &&
table.Columns[4] is float[] && table.Columns[5] is short[] && table.Columns[6] is float[])
{
double[] wavelengths = (double[])table.Columns[0];
float[] fluxes = (float[])table.Columns[1];
float[] col2 = (float[])table.Columns[2];
float[] col3 = (float[])table.Columns[3];
float[] col4 = (float[])table.Columns[4];
short[] goodnessFlags = (short[])table.Columns[5];
float[] exposures = (float[])table.Columns[6];
for (int i = 0; i < fluxes.Length; i++)
{
if (wavelengths[i] < 2000)
{
continue;
}
if (wavelengths[i] > 15000)
{
break;
}
bld.Append(wavelengths[i].ToString().PadLeft(20));
bld.Append(fluxes[i].ToString().PadLeft(20));
bld.Append(col2[i].ToString().PadLeft(20));
bld.Append(col3[i].ToString().PadLeft(20));
bld.Append(col4[i].ToString().PadLeft(20));
bld.Append(goodnessFlags[i].ToString().PadLeft(15));
bld.Append(exposures[i].ToString().PadLeft(15));
bld.AppendLine();
int expMS = (int)Math.Round(exposures[i] * 1000);
if (!dist.ContainsKey(expMS))
{
dist.Add(expMS, 0);
}
dist[expMS]++;
}
}
string outFileName = Path.ChangeExtension(filePath, ".txt");
File.WriteAllText(outFileName, bld.ToString());
fitsFile.Close();
}
}
var output = new StringBuilder();
foreach (int key in dist.Keys)
{
output.AppendFormat("{0}s = {1}\r\n", (key / 1000.0).ToString("0.0"), dist[key]);
}
MessageBox.Show(output.ToString());
}
private double GetReferenceMagnitude(FilterResponse filterResponse, CalSpecStar star)
{
switch (filterResponse.Band)
{
case PhotometricBand.B:
return star.MagB;
case PhotometricBand.V:
return star.MagV;
case PhotometricBand.R:
return star.MagR;
case PhotometricBand.Sloan_g:
return star.Mag_g;
case PhotometricBand.Sloan_r:
return star.Mag_r;
case PhotometricBand.Sloan_i:
return star.Mag_i;
default:
return star.MagV;
}
}
private void BuildCalSpecDb()
{
var db = new CalSpecDatabase();
int totalBad = 0;
string[] lines2 = File.ReadAllLines(@"F:\WORK\tangra3\Tangra 3\VideoOperations\Spectroscopy\AbsFluxCalibration\Standards\AbsFlux-TangraStars.csv");
for (int i = 1; i < lines2.Length; i++)
{
string[] tokens = lines2[i].Split(',');
string calSpecId = tokens[0].Trim();
string RA_FK5_Hours = tokens[1].Trim();
string DEG_FK5_Deg = tokens[2].Trim();
string pmRA = tokens[3].Trim();
string pmDec = tokens[4].Trim();
string specType = tokens[5].Trim();
string magV = tokens[6].Trim();
string magBV = tokens[7].Trim();
string absFluxId = tokens[8].Trim();
string stisFlag = tokens[9].Trim();
string fitsFilePath = tokens[10].Trim();
int stisFrom = int.Parse(tokens[11].Trim());
int stisTo = int.Parse(tokens[12].Trim());
string tyc2 = tokens[13].Trim();
string ucac4 = tokens[14].Trim();
if (!string.IsNullOrEmpty(pmRA) && !string.IsNullOrEmpty(pmDec))
{
var star = new CalSpecStar()
{
CalSpecStarId = calSpecId,
AbsFluxStarId = absFluxId,
STIS_Flag = stisFlag,
FITS_File = fitsFilePath,
TYC2 = tyc2,
U4 = ucac4,
pmRA = double.Parse(pmRA),
pmDE = double.Parse(pmDec),
MagV = double.Parse(magV),
MagBV = double.Parse(magBV),
SpecType = specType,
RA_J2000_Hours = AstroConvert.ToRightAcsension(RA_FK5_Hours),
DE_J2000_Deg = AstroConvert.ToDeclination(DEG_FK5_Deg)
};
string filePath = Path.GetFullPath(@"Z:\CALSPEC\current_calspec\" + fitsFilePath);
using (var bf = new BufferedFile(filePath, FileAccess.Read, FileShare.ReadWrite))
{
var fitsFile = new Fits();
fitsFile.Read(bf);
BasicHDU imageHDU = fitsFile.GetHDU(1);
var table = (ColumnTable)imageHDU.Data.DataArray;
double[] wavelengths = (double[])table.Columns[0];
float[] fluxes = (float[])table.Columns[1];
short[] goodnessFlags = (short[])table.Columns[5];
for (int j = 0; j < fluxes.Length; j++)
{
if (wavelengths[j] < stisFrom) continue;
if (wavelengths[j] > stisTo) break;
if (goodnessFlags[j] != 0)
star.DataPoints.Add(wavelengths[j], fluxes[j]);
else
totalBad++;
}
fitsFile.Close();
}
db.Stars.Add(star);
}
}
using (var compressedStream = new FileStream(@"F:\WORK\tangra3\Tangra 3\VideoOperations\Spectroscopy\AbsFluxCalibration\Standards\CalSpec.db", FileMode.CreateNew, FileAccess.Write))
using (var deflateStream = new DeflateStream(compressedStream, CompressionMode.Compress, true))
{
using (var writer = new BinaryWriter(deflateStream))
{
db.Serialize(writer);
}
}
using (var compressedStream = new FileStream(@"F:\WORK\tangra3\Tangra 3\VideoOperations\Spectroscopy\AbsFluxCalibration\Standards\CalSpec.db", FileMode.Open, FileAccess.Read))
using (var deflateStream = new DeflateStream(compressedStream, CompressionMode.Decompress, true))
{
using (var reader = new BinaryReader(deflateStream))
{
var db2 = new CalSpecDatabase(reader);
Trace.WriteLine(db2.Stars.Count);
}
}
MessageBox.Show(totalBad.ToString() + " bad entries excluded.");
string[] fitsFiles = Directory.GetFiles(@"Z:\CALSPEC\current_calspec", "*.fit");
var dist = new Dictionary<int, int>();
foreach (string filePath in fitsFiles)
{
using (var bf = new BufferedFile(filePath, FileAccess.Read, FileShare.ReadWrite))
{
var fitsFile = new Fits();
fitsFile.Read(bf);
var bld = new StringBuilder();
BasicHDU headerHDU = fitsFile.GetHDU(0);
BasicHDU imageHDU = fitsFile.GetHDU(1);
for (int i = 0; i < headerHDU.Header.NumberOfCards; i++)
{
string cardString = headerHDU.Header.GetCard(i);
bld.AppendFormat("# {0}\r\n", cardString);
}
for (int i = 0; i < imageHDU.Header.NumberOfCards; i++)
{
string cardString = imageHDU.Header.GetCard(i);
bld.AppendFormat("# {0}\r\n", cardString);
}
var table = (ColumnTable)imageHDU.Data.DataArray;
if (table.Columns.Length == 7 &&
table.Columns[0] is double[] && table.Columns[1] is float[] && table.Columns[2] is float[] && table.Columns[3] is float[] &&
table.Columns[4] is float[] && table.Columns[5] is short[] && table.Columns[6] is float[])
{
double[] wavelengths = (double[])table.Columns[0];
float[] fluxes = (float[])table.Columns[1];
float[] col2 = (float[])table.Columns[2];
float[] col3 = (float[])table.Columns[3];
float[] col4 = (float[])table.Columns[4];
short[] goodnessFlags = (short[])table.Columns[5];
float[] exposures = (float[])table.Columns[6];
for (int i = 0; i < fluxes.Length; i++)
{
if (wavelengths[i] < 2000) continue;
if (wavelengths[i] > 15000) break;
bld.Append(wavelengths[i].ToString().PadLeft(20));
bld.Append(fluxes[i].ToString().PadLeft(20));
bld.Append(col2[i].ToString().PadLeft(20));
bld.Append(col3[i].ToString().PadLeft(20));
bld.Append(col4[i].ToString().PadLeft(20));
bld.Append(goodnessFlags[i].ToString().PadLeft(15));
bld.Append(exposures[i].ToString().PadLeft(15));
bld.AppendLine();
int expMS = (int)Math.Round(exposures[i] * 1000);
if (!dist.ContainsKey(expMS)) dist.Add(expMS, 0);
dist[expMS]++;
}
}
string outFileName = Path.ChangeExtension(filePath, ".txt");
File.WriteAllText(outFileName, bld.ToString());
fitsFile.Close();
}
}
var output = new StringBuilder();
foreach (int key in dist.Keys)
{
output.AppendFormat("{0}s = {1}\r\n", (key / 1000.0).ToString("0.0"), dist[key]);
}
MessageBox.Show(output.ToString());
}