private static void Example1_Create_And_Save_EDF()
{
//Crreate an empty EDF file
var edfFile = new EDFFile();
//Create a signal object
var ecgSig = new EDFSignal();
ecgSig.Label.Value = "ECG";
ecgSig.NumberOfSamples.Value = 10;
ecgSig.PhysicalDimension.Value = "mV";
ecgSig.DigitalMinimum.Value = -2048;
ecgSig.DigitalMaximum.Value = 2047;
ecgSig.PhysicalMinimum.Value = -10.2325;
ecgSig.PhysicalMaximum.Value = 10.2325;
ecgSig.TransducerType.Value = "UNKNOWN";
ecgSig.Prefiltering.Value = "UNKNOWN";
ecgSig.Reserved.Value = "RESERVED";
ecgSig.Samples = new short[] { 100, 50, 23, 75, 12, 88, 73, 12, 34, 83 };
//Set the signal
edfFile.Signals = new EDFSignal[1] {
ecgSig
};
//Create the header object
var h = new EDFHeader();
h.DurationOfDataRecord.Value = 1;
h.Version.Value = "0";
h.PatientID.Value = "TEST PATIENT ID";
h.RecordID.Value = "TEST RECORD ID";
h.StartDate.Value = "11.11.16"; //dd.mm.yy
h.StartTime.Value = "12.12.12"; //hh.mm.ss
h.Reserved.Value = "RESERVED";
h.NumberOfDataRecords.Value = 1;
h.NumberOfSignals.Value = (short)edfFile.Signals.Length;
h.SignalsReserved.Value = Enumerable.Repeat("RESERVED".PadRight(32, ' '),
h.NumberOfSignals.Value).ToArray();
//Set the header
edfFile.Header = h;
//Print some info
Console.Write(
"\nPatient ID:\t\t" + edfFile.Header.PatientID.Value +
"\nNumber of signals:\t" + edfFile.Header.NumberOfSignals.Value +
"\nStart date:\t\t" + edfFile.Header.StartDate.Value +
"\nSignal label:\t\t" + edfFile.Signals[0].Label.Value +
"\nSignal samples:\t\t"
+ String.Join(",", edfFile.Signals[0].Samples.Skip(0).Take(10).ToArray())
+ "\n\n"
);
//Save the file
string fileName = @"C:\temp\example.edf";
edfFile.Save(fileName);
//Read the file
var f = new EDFFile(fileName);
Console.ReadLine();
}
public ChannelSelectionForm(EDFHeader edfHeader)
{
InitializeComponent();
_signals = edfHeader.Signals.ToArray();
}
public void Test_WriteReadEDF_ShouldReturnSameData()
{
//Write an EDF file with two signals then read it and check the data is correct
var edf1 = new EDFFile();
var ecgSig = new EDFSignal();
ecgSig.Label.Value = "ECG";
ecgSig.NumberOfSamples.Value = 10; //Small number of samples for testing
ecgSig.PhysicalDimension.Value = "mV";
ecgSig.DigitalMinimum.Value = -2048;
ecgSig.DigitalMaximum.Value = 2047;
ecgSig.PhysicalMinimum.Value = -10.2325;
ecgSig.PhysicalMaximum.Value = 10.2325;
ecgSig.TransducerType.Value = "UNKNOWN";
ecgSig.Prefiltering.Value = "UNKNOWN";
ecgSig.Reserved.Value = "RESERVED";
ecgSig.Samples = new short[] { 100, 50, 23, 75, 12, 88, 73, 12, 34, 83 };
var soundSig = new EDFSignal();
soundSig.Label.Value = "SOUND";
soundSig.NumberOfSamples.Value = 10;//Small number of samples for testing
soundSig.PhysicalDimension.Value = "mV";
soundSig.DigitalMinimum.Value = -2048;
soundSig.DigitalMaximum.Value = 2047;
soundSig.PhysicalMinimum.Value = -44;
soundSig.PhysicalMaximum.Value = 44.0;
soundSig.TransducerType.Value = "UNKNOWN";
soundSig.Prefiltering.Value = "UNKNOWN";
soundSig.Samples = new short[] { 11, 200, 300, 123, 87, 204, 145, 234, 222, 75 };
soundSig.Reserved.Value = "RESERVED";
edf1.Signals = new EDFSignal[2] {
ecgSig, soundSig
};
var h = new EDFHeader();
h.DurationOfDataRecord.Value = 1;
h.Version.Value = "0";
h.PatientID.Value = "TEST PATIENT ID";
h.RecordID.Value = "TEST RECORD ID";
h.StartDate.Value = "11.11.16"; //dd.mm.yy
h.StartTime.Value = "12.12.12"; //hh.mm.ss
h.Reserved.Value = "RESERVED";
h.NumberOfDataRecords.Value = 1;
h.NumberOfSignals.Value = (short)edf1.Signals.Length;
h.SignalsReserved.Value = Enumerable.Repeat("RESERVED".PadRight(32, ' '), h.NumberOfSignals.Value).ToArray();
edf1.Header = h;
string edfFilePath = @"C:\temp\test1.EDF";
edf1.Save(edfFilePath);
//Read the file back
var edf2 = new EDFFile(edfFilePath);
Assert.AreEqual(edf2.Header.Version.ToAscii(), edf1.Header.Version.ToAscii());
Assert.AreEqual(edf2.Header.PatientID.ToAscii(), edf1.Header.PatientID.ToAscii());
Assert.AreEqual(edf2.Header.RecordID.ToAscii(), edf1.Header.RecordID.ToAscii());
Assert.AreEqual(edf2.Header.StartDate.ToAscii(), edf1.Header.StartDate.ToAscii());
Assert.AreEqual(edf2.Header.StartTime.ToAscii(), edf1.Header.StartTime.ToAscii());
Assert.AreEqual(edf2.Header.Reserved.ToAscii(), edf1.Header.Reserved.ToAscii());
Assert.AreEqual(edf2.Header.NumberOfDataRecords.ToAscii(), edf1.Header.NumberOfDataRecords.ToAscii());
Assert.AreEqual(edf2.Header.NumberOfSignals.ToAscii(), edf1.Header.NumberOfSignals.ToAscii());
Assert.AreEqual(edf2.Header.SignalsReserved.ToAscii(), edf1.Header.SignalsReserved.ToAscii());
Assert.AreEqual(edf2.Signals[0].Samples.Length, edf1.Signals[0].Samples.Length);
}
