// Method to respond to user clicking start button
private void StartButton_Click(object sender, EventArgs e)
{
// If we are restarting the experiment after it being paused, just reset the PauseExperiment flag
if (PauseExperiment == true)
{
PauseExperiment = false; // Set flag
PauseButton.Enabled = true; // Re-enable pause button
StartButton.Enabled = false; // Disable start button
OpenUSBButton.Enabled = false; // Disable open USB button
}
else
{ // Otherwise, start experiment
this.Reset(); // Reset first
if (FPGA.bUSBPortIsOpen == false)
{
WriteMessage("Can't Send Start Signal to FPGA: USB port is not open", true);
return;
}
else
{
//Grab all scan and trap parameters from form:
specType = specTypeBox.SelectedItem.ToString();
specDir = specDirBox.SelectedItem.ToString();
trapV = (float)(1000 * trapVBox.Value); //Trap voltage stored in millivolts
axFreq = (int)(1000 * axFreqBox.Value);
modcycFreq = (int)(1000 * modcycFreqBox.Value);
magFreq = (int)(1000 * magFreqBox.Value);
startFreq = (int)(1000000 * startFreqBox.Value);
carFreq = (int)(1000000 * carFreqBox.Value);
stepSize = (int)(1000 * stepSizeBox.Value);
sbToScan = (int)sbToScanBox.Value;
sbWidth = (int)sbWidthBox.Value;
rfAmp = (float)rfAmpBox.Value;
// Metadata ordering in array:
// 0: Date
// 1: Spectrum type
// 2: 729 direction
// 3: Trap voltage
// 4: Axial freq (kHz)
// 5: Modified cyc freq (kHz)
// 6: Magnetron freq (kHz)
// 7: AOM start freq (MHz)
// 8: Carrier freq (MHz)
// 9: Step size (kHz or ticks)
// 10: Sidebands/side
// 11: Sideband width (steps)
// 12: 729 RF amplitude
// 13: Number of repeats
// 14: Number interleaved
// 15: Which sideband
// 16: Starting pulse length (fixed)
// 17: Number of steps (fixed)
// 18 + i: spectrum i name
// Create new dialog to get data from user before starting the experiment
StartExperimentDialog myExperimentDialog = new StartExperimentDialog();
myExperimentDialog.ShowDialog();
if (myExperimentDialog.DialogResult != DialogResult.Cancel)
{
// Create & fill in metadata
string[] metadata = new string[23];
metadata[0] = DateTime.UtcNow.ToString("dd/MM/yyyy HH:mm:ss");
// This is all from the CoreForm
metadata[1] = specType;
metadata[2] = specDir;
metadata[3] = this.trapVBox.Value.ToString();
metadata[4] = this.axFreqBox.Value.ToString();
metadata[5] = this.modcycFreqBox.Value.ToString();
metadata[6] = this.magFreqBox.Value.ToString();
metadata[7] = this.startFreqBox.Value.ToString();
metadata[8] = this.carFreqBox.Value.ToString();
metadata[9] = this.stepSizeBox.Value.ToString();
metadata[10] = this.sbToScanBox.Value.ToString();
metadata[11] = this.sbWidthBox.Value.ToString();
metadata[12] = this.rfAmpBox.Value.ToString();
// Fill in remaining metadata from form
metadata[13] = myExperimentDialog.NumberOfRepeats.Value.ToString();
metadata[14] = myExperimentDialog.NumberOfSpectra.Value.ToString();
metadata[15] = "N/A";
metadata[16] = "N/A"; // For fixed spectra only
metadata[17] = "N/A"; // For fixed spectra only
int numberOfSpectra = (int)myExperimentDialog.NumberOfSpectra.Value;
for (int i = 0; i < numberOfSpectra; i++)
{
metadata[i + 18] = myExperimentDialog.SpectrumNames[i].Text;
}
metadata[18 + numberOfSpectra] = myExperimentDialog.NotesBox.Text;
// Retrieve the folder path selected by the user
string FolderPath = myExperimentDialog.getFilePath();
// Make sure the
if (FolderPath != null)
{
TextWriter[] myFile; // Declare array of files
// If "Continuous" experiment type has been selected
if (specType == "Continuous")
{
//Turn on frequency generator
bIsFreqGenEnabled = true;
//Start frequency is the value taken directly from the form, no windowing
startFreqArray = new int[1];
startFreqArray[0] = startFreq;
// Create a single file and put all readings in there
myFileName = new string[1];
myFile = new TextWriter[1];
// Create empty RabiSelector object to pass to writeMetadataToFile (not used)
RabiSelector myRabiSelector = new RabiSelector();
// Create the file with appropriate name & write metadata to it
writeMetadataToFile(ref myExperimentDialog, ref myRabiSelector, ref FolderPath, ref myFile, 1);
}
else if (specType == "Windowed")
{
//Turn on frequency generator
bIsFreqGenEnabled = true;
//Calculate frequency offset of sideband start frequencies from sideband centres
int offsetFreq = (int)stepSize*sbWidth/2;
//Determine window spacing from trap frequencys and the type of spectrum selected
int windowSpace = 0;
if (specDir == "Axial") windowSpace = (int)(axFreq/2);
else if (specDir == "Radial") windowSpace = (int)(modcycFreq/2);
//Array of start frequencies for each sideband (from furthest red to furthest blue)
startFreqArray = new int[sbToScan * 2 + 1];
for (int sb = 0; sb < (sbToScan * 2 + 1); sb++)
{
startFreqArray[sb] = carFreq - offsetFreq - (windowSpace * (sbToScan - sb));
}
// We want a file for each sideband with appropriate naming
// Calculate how many files we will need - one for each R/B sideband plus one for carrier
int numberOfFiles = (int)(sbToScan * 2 + 1);
// Create array of filenames & array of files
myFileName = new string[numberOfFiles];
myFile = new TextWriter[numberOfFiles];
// Create empty RabiSelector object to pass to writeMetadataToFile (not used)
RabiSelector myRabiSelector = new RabiSelector();
// Generate filenames and actually create files
writeMetadataToFile(ref myExperimentDialog, ref myRabiSelector, ref FolderPath, ref myFile, numberOfFiles);
}
else if (specType == "Fixed")
{
// Maybe put a box for user to input which pulses are varied in length
//Start frequency is the value taken directly from the form, no windowing
startFreqArray = new int[1];
startFreqArray[0] = startFreq;
// Show form for user to enter details about fixed frequency sequence
// (need starting pulse length & step size)
RabiSelector myRabiSelector = new RabiSelector();
myRabiSelector.generateSequenceButton.Enabled = false;
myRabiSelector.pulseSelectBox.Enabled = false;
myRabiSelector.repeatsSelect.Enabled = false;
myRabiSelector.ShowDialog();
// Get starting pulse length & step size from user form
fixed_startLength = (int)myRabiSelector.startLengthSelect.Value;
fixed_stepSize = (int)myRabiSelector.stepSizeSelect.Value;
// Change step size in metadata
metadata[9] = fixed_stepSize.ToString();
metadata[16] = fixed_startLength.ToString();
metadata[17] = myRabiSelector.stepsSelect.Value.ToString();
// Create a single file and put all readings in there
myFileName = new string[1];
myFile = new TextWriter[1];
writeMetadataToFile(ref myExperimentDialog, ref myRabiSelector, ref FolderPath, ref myFile, 1);
bIsFreqGenEnabled = false;
}
// If myViewer is not open
if (IsViewerOpen)
{
myViewer.Close();
IsViewerOpen = false;
}
// Create new instance of viewer
myViewer = new Spectroscopy_Viewer.SpectroscopyViewerForm(ref metadata);
// Set up event handler to deal with viewer closing - must be done after it is constructed
myViewer.FormClosing += new FormClosingEventHandler(myViewer_FormClosing);
// Set up event handler to deal with event raised when pause button on viewer is clicked
// This should trigger the pause button in the main window
myViewer.PauseEvent += new SpectroscopyViewerForm.PauseEventHandler(PauseButton_Click);
// Show viewer
myViewer.Show();
// Set boolean to indicate that viewer is open
IsViewerOpen = true;
}
else
{
MessageBox.Show("Error selecting folder. Please try again.");
}
// Code required to start the experiment running:
bShouldQuitThread = false;
GPIB.InitDevice(19);
GPIB.SetAmplitude(rfAmp);
GPIB.SetFrequency(startFreq);
SendSetupFinish();
// Start experiment
StartReadingData();
}
}
}
}
private void OpenViewer()
{
// Create new instance of viewer (blank)
myViewer = new Spectroscopy_Viewer.SpectroscopyViewerForm();
// Set up event handler for form closing - this must be done after it is constructed
myViewer.FormClosing += new FormClosingEventHandler(myViewer_FormClosing);
// Set up event handler to deal with event raised when pause button on viewer is clicked
// This should trigger the pause button in the main window
myViewer.PauseEvent += new SpectroscopyViewerForm.PauseEventHandler(PauseButton_Click);
// Show viewer
myViewer.Show();
// Set boolean indicating that the viewer is now open
IsViewerOpen = true;
}
