private void Finish_Click(object sender, RoutedEventArgs e)
{
if (MarkerCanvas.markedRegions.Count != 0)
{
EventDictionaryEntry ede1;
EventDictionaryEntry ede2;
//Determine how many artifact files in existence to create unique name
string[] files = Directory.GetFiles(directory, "*_artifact*.hdr", SearchOption.TopDirectoryOnly);
int maxFileIndex = -1;
for (int i = 0; i < files.Length; i++)
{
Match m = Regex.Match(files[i], @"^.+_artifact(-\d+)*-(?<number>\d+)\.[hH][dD][rR]$");
if(m.Success) //has to match naming convention
maxFileIndex = Math.Max(maxFileIndex, Convert.ToInt32(m.Groups["number"].Value));
}
string newFileName;
StringBuilder sb = new StringBuilder(header.Comment); //Add comment to HDR file documenting artifact marking
if (sb.Length > 0) sb.Append(Environment.NewLine);
sb.Append("Artifacts marked on " + DateTime.Today.ToShortDateString() + " by " + Environment.UserName);
header.Comment = sb.ToString();
if (updateFlag) //then, this dataset is based on another one; need to find out if this is an update of current dataset only, or if a new file is to be created
{
if (!header.Events.TryGetValue("**ArtifactBegin", out ede1) || !header.Events.TryGetValue("**ArtifactEnd", out ede2) || !ede1.BDFBased || !ede2.BDFBased)
throw new Exception("Error in attempted update of previously marked dataset; may be update of old-form dataset");
Window3 w = new Window3();
w.Owner = this;
w.ShowDialog();
if (dialogReturn == 1) return;
if (dialogReturn == 2) //replace current files only
newFileName = System.IO.Path.GetFileNameWithoutExtension(header.EventFile); //Use old name; only update Comment
else //create new file set from old
{
newFileName = System.IO.Path.GetFileNameWithoutExtension(header.EventFile) + "-" + (maxFileIndex + 1).ToString("0");
header.EventFile = newFileName + ".evt";
}
}
else //this is based on a previously unmarked dataset; add new Event types to HDR
{
//Modify header with new "naked" Events and file names
ede1 = new EventDictionaryEntry();
ede1.intrinsic = null;
ede1.BDFBased = true; //Use BDF-based clocking
ede1.Description = "Beginning of artifact region";
ede2 = new EventDictionaryEntry();
ede2.intrinsic = null;
ede2.BDFBased = true; //Use BDF-based clocking
ede2.Description = "End of artifact region";
header.Events.Add("**ArtifactBegin", ede1);
header.Events.Add("**ArtifactEnd", ede2);
newFileName = System.IO.Path.GetFileNameWithoutExtension(header.BDFFile) + @"_artifact-" +
(maxFileIndex + 1).ToString("0"); ; //create new filename
header.EventFile = newFileName + ".evt";
//and write new header out
}
header.Comment += (header.Comment == "" ? "" : Environment.NewLine) +
"Artefact Events marked on " + DateTime.Now.ToString("dd MMM yyyy HH:mm:ss") +
" by " + Environment.UserName;
FileStream fs = new FileStream(System.IO.Path.Combine(directory, newFileName + ".hdr"), FileMode.OpenOrCreate, FileAccess.Write);
new HeaderFileWriter(fs, header); //write out new header
foreach (MarkerRectangle mr in MarkerCanvas.markedRegions) //update Event file to include new artifact marks
{
double eventTime = mr.leftEdge;
OutputEvent newOE = new OutputEvent(ede1, eventTime);
int index = events.FindIndex(ev => bdf.timeFromBeginningOfFileTo(ev) >= eventTime);
if (index < 0) //must be after last Event or no Events
events.Add(newOE);
else
events.Insert(index, newOE);
eventTime = mr.rightEdge;
newOE = new OutputEvent(ede2, eventTime);
index = events.FindIndex(ev => bdf.timeFromBeginningOfFileTo(ev) > eventTime);
if (index < 0)
events.Add(newOE);
else
events.Insert(index, newOE);
}
EventFileWriter efw = new EventFileWriter(
new FileStream(System.IO.Path.Combine(directory, header.EventFile), FileMode.OpenOrCreate, FileAccess.Write));
foreach (OutputEvent ev in events)
efw.writeRecord(ev);
efw.Close();
Log.writeToLog(" Created/updated to dataset " + newFileName);
}
this.Close();
}
//
//Create a new Event for output
// need an indirect approach in order of permit the number of bits allocated
// to the Event.Index to be set at run time, but be unchangeable thereafter
//
public OutputEvent CreateOutputEvent(string name)
{
EventDictionaryEntry ede;
if (!ed.TryGetValue(name, out ede)) //check to make sure there is an EventDictionaryEntry for this name
throw new Exception("No entry in EventDictionary for \"" + name + "\"");
OutputEvent e = new OutputEvent(ede);
if (ede.IsCovered)
{
e.m_index = nextIndex();
e.m_gc = grayCode((uint)e.Index);
}
// markBDFstatus((uint)e.GC); //***** this is needed only if used for real-time application this BIOSEMI
return e;
}
internal static void BuildFile(object sender, DoWorkEventArgs e)
{
Parameters parameters = (Parameters)e.Argument;
DirectoryInfo di = new DirectoryInfo(parameters.directoryPath);
try
{
if (!di.Exists) di.Create();
}
catch (Exception io)
{
throw new Exception("Directory creation failed: " + io.ToString());
}
parameters.fileName = di.FullName + Path.DirectorySeparatorChar + parameters.fileName;
/* ***** Create new BDF/EDF file ***** */
BDFEDFFileWriter file = new BDFEDFFileWriter(
File.Open(parameters.fileName + (parameters.BDFFormat ? ".bdf" : ".edf"), FileMode.Create, FileAccess.ReadWrite),
parameters.nChan + 1, // add one to include Status
parameters.recordDuration,
parameters.samplingRate,
parameters.BDFFormat);
file.LocalRecordingId = parameters.LocalRecordingId;
file.LocalSubjectId = parameters.LocalSubjectId;
for (int ichan = 0; ichan < parameters.nChan; ichan++)
{
file.channelLabel(ichan, parameters.ChannelLabelPrefix + " " + (ichan + 1).ToString("G"));
file.transducer(ichan, parameters.TransducerString);
file.dimension(ichan, parameters.PhysicalDimensionString);
file.pMin(ichan, (int)Math.Ceiling(parameters.pMin));
file.pMax(ichan, (int)Math.Ceiling(parameters.pMax));
file.dMin(ichan, parameters.dMin);
file.dMax(ichan, parameters.dMax);
file.prefilter(ichan, parameters.PrefilterString);
}
file.channelLabel(parameters.nChan, "Status");
file.transducer(parameters.nChan, "None");
file.dimension(parameters.nChan, "None");
file.pMin(parameters.nChan, -Math.Pow(2D, 23D));
file.pMax(parameters.nChan, Math.Pow(2D, 23D) - 1);
file.dMin(parameters.nChan, (int)file.pMin(parameters.nChan));
file.dMax(parameters.nChan, (int)file.pMax(parameters.nChan));
file.prefilter(parameters.nChan, "None");
/* ***** Create Electrode position file ***** */
double[] phi;
double[] theta;
setElectrodeLocations(parameters.nChan, out phi, out theta); // assign locations
ElectrodeFileStream.ElectrodeOutputFileStream efs = new ElectrodeFileStream.ElectrodeOutputFileStream(
File.Open(parameters.fileName + ".etr", FileMode.Create, FileAccess.Write),typeof(PhiThetaRecord));
for (int i = 0; i < parameters.nChan; i++)
{
string sName = parameters.ChannelLabelPrefix + " " + (i + 1).ToString("0");
PhiThetaRecord xy = new PhiThetaRecord(sName, phi[i], theta[i]);
xy.write(efs, "");
}
efs.Close();
/* ***** Create new HDR file ***** */
new HeaderFileWriter(
File.Open(parameters.fileName + ".hdr", FileMode.Create, FileAccess.Write),
parameters.head);
/* ***** Create new Event file and initialize ***** */
EventFileWriter events = new EventFileWriter(
File.Open(parameters.fileName + ".evt", FileMode.Create, FileAccess.Write));
int lastN = 0; // last used index of Event
int lastG = 0; // last used grayCode
/* ***** Other preliminaries ***** */
int nRec = (int)Math.Ceiling((double)parameters.totalFileLength / (double)parameters.recordDuration);
int nPts = parameters.recordDuration * parameters.samplingRate;
DateTime dt = DateTime.Now; // base time for events
double T = 0D;
deltaT = 1D / Convert.ToDouble(parameters.samplingRate);
int[] statusChannel = new int[nPts];
/* ***** Main loop ***** */
for (int rec = 0; rec < nRec; rec++ ) //for each required record
{
for (int p = 0; p < nPts; p++) //for each point in a record
{
foreach (Event evt in parameters.eventList) //loop through each Event definition
{
if (evt.IsNow(T)) // is next occurence of Event at this tick?
{
lastN = (lastN % ((1 << parameters.nBits) - 2)) + 1; // get next index value
OutputEvent oe = new OutputEvent(evt.EDEntry, dt.AddSeconds(T), lastN);
lastG = oe.GC; // get the corresponding grayCode value; calculated as OutputEvent created
int n = evt.GVs.Count;
oe.GVValue = new string[n]; // assign group variable values
for (int i = 0; i < n; i++)
{
oe.GVValue[i] = evt.oldGVValues[i].ToString("0");
}
events.writeRecord(oe); // write out new Event record
}
}
statusChannel[p] = lastG; //Status channel
double eventcontribution = calculateEventSignal(parameters);
for (int chan = 1; chan <= parameters.nChan; chan++)
{
file.putSample(chan - 1, p, parameters.window.Calculate(T, chan) + eventcontribution);
}
T += deltaT;
}
file.putStatus(statusChannel);
file.write();
if (Window1.bw.CancellationPending)
{
file.Close();
events.Close();
e.Cancel = true;
return;
}
Window1.bw.ReportProgress(Convert.ToInt32(100D * (double)rec / (double)nRec));
}
events.Close();
file.Close();
}
