// Constructor given a file (pass by reference!)
public fileHandler(ref System.IO.StreamReader myFile, string myFileName)
{
//*************************************//
// Metadata format
// ---------------
//
// "Spectroscopy data file"
// date
// "Trap frequency:"
// trapFrequency
// "Trap voltage:"
// trapVoltage
// "AOM Start frequency:"
// startFrequency
// "Step size:"
// stepSize
// "Number of repeats per frequency:"
// repeats
// "File contains interleaved spectra:"
// numberInterleaved
// "This is sideband:"
// sidebandNumber
// "Starting pulse length (fixed):"
// startLength
// "Number of steps (fixed):"
// numberOfSteps (fixed)
// "Spectrum i name":
// spectrumName[i]
// "Notes:"
// Notes section - all lines should start with a #
// "Data:"
// Two "name" labels - one in file, one for displaying on graph
// Name spectra on creation rather than when loading file?
// Include notes section - parse & display in a window
//*************************************//
// String to temporarily store data from the file
string myString = myFile.ReadLine(); // Read first line of file
// Make sure it is a valid data file - check for metadata
if (myString == "Spectroscopy data file")
{
//******************************//
// Processing metadata
// Just dump it into an array of strings
metadata = new string[25];
// Next 36 lines are misc metadata with titles
for (int i = 0; i < 18; i++)
{
metadata[i] = myFile.ReadLine(); // First line is actual metadata
myString = myFile.ReadLine(); // Alternating lines are just a title (throw away)
}
float stepSizekHz, startFrequencyMHz;
// Store crucial metadata - no. of repeats, no. interleaved, step size, start freq
// int.TryParse(myString, out myInt) converts myString to an int and stores it in myInt
// then returns true if it was successful, false otherwise
if (int.TryParse(metadata[13], out repeats) && int.TryParse(metadata[14], out numberInterleaved) &&
float.TryParse(metadata[9], out stepSizekHz) && float.TryParse(metadata[7], out startFrequencyMHz))
{
if (metadata[1] == "Fixed")
{
// Make sure starting pulse length is an int
if (int.TryParse(metadata[16], out startLength))
{
// Don't convert - this is a number of ticks
stepSize = (int)stepSizekHz;
}
else
{
MessageBox.Show("Error reading metadata (pulse length not an int)");
}
}
else
{
// These need converting to Hz and storing as ints
stepSize = (int)(stepSizekHz * 1000);
}
// Always convert start freq to int
startFrequency = (int)(startFrequencyMHz * 1000000);
}
else
{
MessageBox.Show("Error reading metadata");
}
spectrumNames = new string[numberInterleaved];
// Depending on number of interleaved spectra, store the names in the array
for (int i = 0; i < numberInterleaved; i++)
{
if (i < 5) // Make sure we don't take more than 5 spectra from file
{
// Put spectrum name into arrays for both metadata and spectrumNames
// ( Need spectrumNames for spectrumSelect dialog)
// Bit messy but it's easiest to code this way for now, maybe tidy later
// using substrings
spectrumNames[i] = myFile.ReadLine();
metadata[i + 18] = spectrumNames[i];
myString = myFile.ReadLine();
}
}
myString = myFile.ReadLine(); // Read first line of notes section
// Keep reading lines while each line begins with a #
while (myString[0] == '#')
{
notes += myString.Substring(1);
notes += System.Environment.NewLine;
myString = myFile.ReadLine();
}
// NB this will read one line PAST the end of the notes section. This should be the line that says "Data:"
// Check this - if not then there will be errors reading the data
if (myString != "Data:")
{
MessageBox.Show("Error: File corrupted (wrong metadata format?)");
return;
}
// Store in array of metadata
if (18 + numberInterleaved < 25 && numberInterleaved != 0)
{
metadata[18 + numberInterleaved] = notes;
}
else
{
Console.WriteLine("Too many interleaved spectra - gone beyond the bounds of metadata array (line 184 fileHandler.cs)");
}
// Process the actual numerical data
this.processData(ref myFile);
} // If there is no metadata
else if (myString == "Spectroscopy data file (no metadata)")
{
// Open a form requesting metadata (start freq, repeats, step size, number of spectra)
// & wait for it to be closed before continuing
requestMetadata myRequestMetadata = new requestMetadata(ref myFileName);
myRequestMetadata.ShowDialog();
// Check that user has pressed ok
if (myRequestMetadata.DialogResult == DialogResult.OK)
{
// Set metadata from user input on form
startFrequency = myRequestMetadata.startFreq;
stepSize = myRequestMetadata.stepSize;
repeats = myRequestMetadata.repeats;
numberInterleaved = myRequestMetadata.numberInterleaved;
// Need to initialise this array
spectrumNames = new string[numberInterleaved];
for (int i = 0; i < numberInterleaved; i++)
{
spectrumNames[i] = "Default";
// Make sure we are not outside the bounds of the array
if (i + 18 < 24)
{
// Store default name in metadata
metadata[i + 18] = spectrumNames[i];
}
}
// Just process the raw data
this.processData(ref myFile);
// Store what we have in the metadata array
metadata[8] = stepSize.ToString();
metadata[9] = stepSize.ToString();
metadata[13] = repeats.ToString();
metadata[14] = numberInterleaved.ToString();
}
}
else
{
System.Windows.Forms.MessageBox.Show("File not recognised");
}
}
// Constructor given a file (pass by reference!)
public fileHandler(ref System.IO.StreamReader myFile, string myFileName)
{
//*************************************//
// Metadata format
// ---------------
//
// "Spectroscopy data file"
// date
// "Trap frequency:"
// trapFrequency
// "Trap voltage:"
// trapVoltage
// "AOM Start frequency:"
// startFrequency
// "Step size:"
// stepSize
// "Number of repeats per frequency:"
// repeats
// "File contains interleaved spectra:"
// numberInterleaved
// "This is sideband:"
// sidebandNumber
// "Starting pulse length (fixed):"
// startLength
// "Number of steps (fixed):"
// numberOfSteps (fixed)
// "Spectrum i name":
// spectrumName[i]
// "Notes:"
// Notes section - all lines should start with a #
// "Data:"
// Two "name" labels - one in file, one for displaying on graph
// Name spectra on creation rather than when loading file?
// Include notes section - parse & display in a window
//*************************************//
// String to temporarily store data from the file
string myString = myFile.ReadLine(); // Read first line of file
// Make sure it is a valid data file - check for metadata
if (myString == "Spectroscopy data file")
{
//******************************//
// Processing metadata
// Just dump it into an array of strings
metadata = new string[25];
// Next 36 lines are misc metadata with titles
for (int i = 0; i < 18; i++)
{
metadata[i] = myFile.ReadLine(); // First line is actual metadata
myString = myFile.ReadLine(); // Alternating lines are just a title (throw away)
}
float stepSizekHz, startFrequencyMHz;
// Store crucial metadata - no. of repeats, no. interleaved, step size, start freq
// int.TryParse(myString, out myInt) converts myString to an int and stores it in myInt
// then returns true if it was successful, false otherwise
if (int.TryParse(metadata[13], out repeats) && int.TryParse(metadata[14], out numberInterleaved)
&& float.TryParse(metadata[9], out stepSizekHz) && float.TryParse(metadata[7], out startFrequencyMHz))
{
if (metadata[1] == "Fixed")
{
// Make sure starting pulse length is an int
if (int.TryParse(metadata[16], out startLength) )
{
// Don't convert - this is a number of ticks
stepSize = (int)stepSizekHz;
}
else MessageBox.Show("Error reading metadata (pulse length not an int)");
}
else
{
// These need converting to Hz and storing as ints
stepSize = (int)(stepSizekHz * 1000);
}
// Always convert start freq to int
startFrequency = (int)(startFrequencyMHz * 1000000);
}
else
{
MessageBox.Show("Error reading metadata");
}
spectrumNames = new string[numberInterleaved];
// Depending on number of interleaved spectra, store the names in the array
for (int i = 0; i < numberInterleaved; i++)
{
if (i < 5) // Make sure we don't take more than 5 spectra from file
{
// Put spectrum name into arrays for both metadata and spectrumNames
// ( Need spectrumNames for spectrumSelect dialog)
// Bit messy but it's easiest to code this way for now, maybe tidy later
// using substrings
spectrumNames[i] = myFile.ReadLine();
metadata[i + 18] = spectrumNames[i];
myString = myFile.ReadLine();
}
}
myString = myFile.ReadLine(); // Read first line of notes section
// Keep reading lines while each line begins with a #
while (myString[0] == '#')
{
notes += myString.Substring(1);
notes += System.Environment.NewLine;
myString = myFile.ReadLine();
}
// NB this will read one line PAST the end of the notes section. This should be the line that says "Data:"
// Check this - if not then there will be errors reading the data
if (myString != "Data:")
{
MessageBox.Show("Error: File corrupted (wrong metadata format?)");
return;
}
// Store in array of metadata
if (18 + numberInterleaved < 25 && numberInterleaved != 0) metadata[18 + numberInterleaved] = notes;
else Console.WriteLine("Too many interleaved spectra - gone beyond the bounds of metadata array (line 184 fileHandler.cs)");
// Process the actual numerical data
this.processData(ref myFile);
} // If there is no metadata
else if (myString == "Spectroscopy data file (no metadata)")
{
// Open a form requesting metadata (start freq, repeats, step size, number of spectra)
// & wait for it to be closed before continuing
requestMetadata myRequestMetadata = new requestMetadata(ref myFileName);
myRequestMetadata.ShowDialog();
// Check that user has pressed ok
if (myRequestMetadata.DialogResult == DialogResult.OK)
{
// Set metadata from user input on form
startFrequency = myRequestMetadata.startFreq;
stepSize = myRequestMetadata.stepSize;
repeats = myRequestMetadata.repeats;
numberInterleaved = myRequestMetadata.numberInterleaved;
// Need to initialise this array
spectrumNames = new string[numberInterleaved];
for (int i = 0; i < numberInterleaved; i++)
{
spectrumNames[i] = "Default";
// Make sure we are not outside the bounds of the array
if (i + 18 < 24)
{
// Store default name in metadata
metadata[i + 18] = spectrumNames[i];
}
}
// Just process the raw data
this.processData(ref myFile);
// Store what we have in the metadata array
metadata[8] = stepSize.ToString();
metadata[9] = stepSize.ToString();
metadata[13] = repeats.ToString();
metadata[14] = numberInterleaved.ToString();
}
}
else System.Windows.Forms.MessageBox.Show("File not recognised");
}
