ANT Forum

Hi there

Excuse me for posting a very basic question, but I'm completely new to this fit format.

I'm trying to generate a fit file from scratch, to begin with I'm just trying to include some trackpoints.

I'm using the SDK and tried to modify the Encode example in C#.

I have created a fit file, but it seems like it's missing some fields, I have tried to convert the fit file to a tcx file using http://fit2tcx.runalyze.de/ and the tcx file contains the error message: not an activity.

I have attached my generated fit file.

Below is the code I have made until now.

Any help is greatly appreciated.
Br
Kenth

static void EncodeFile()
{
System.DateTime systemTimeNow = System.DateTime.Now;

System.DateTime systemTimeStart = System.DateTime.Now;

FileStream fitDest = new FileStream("Example.fit", FileMode.Create, FileAccess.ReadWrite, FileShare.Read);

// Create file encode object
Encode encodeDemo = new Encode();

// Write our header
encodeDemo.Open(fitDest);

// Generate some FIT messages
FileIdMesg fileIdMesg = new FileIdMesg(); // Every FIT file MUST contain a 'File ID' message as the first message
fileIdMesg.SetType(Dynastream.Fit.File.MonitoringB); // See the 'FIT FIle Types Description' document for more information about this file type.
fileIdMesg.SetManufacturer(Manufacturer.Dynastream);
fileIdMesg.SetProduct(1001);
fileIdMesg.SetSerialNumber(54321);
fileIdMesg.SetTimeCreated(new Dynastream.Fit.DateTime(systemTimeNow));
fileIdMesg.SetNumber(0);
encodeDemo.Write(fileIdMesg); // Write the 'File ID Message'



FileCreatorMesg fileCreatorMesg = new FileCreatorMesg();
fileCreatorMesg.SetHardwareVersion(1);
fileCreatorMesg.SetSoftwareVersion(1);
encodeDemo.Write(fileCreatorMesg);



EventMesg eventMesg = new EventMesg();
eventMesg.SetTimestamp(new Dynastream.Fit.DateTime(systemTimeNow));
eventMesg.SetTimerTrigger(0);
eventMesg.SetEvent(Event.Timer);
eventMesg.SetEventType(EventType.Start);
encodeDemo.Write(eventMesg);


var latDegrees = 55.01;
var lonDegrees = 12.01;

RecordMesg recordMesg = new RecordMesg();
//recordMesg.LocalNum = 1;

for (int i = 0; i < 20; i++ )
{
latDegrees += 0.001;
lonDegrees += 0.001;
var latSemicircles = (int)(latDegrees * ((Math.Pow(2, 31)) / 180)); var l * ((Math.Pow(2, 31)) / 180));

recordMesg.SetTimestamp(new Dynastream.Fit.DateTime(systemTimeNow));
recordMesg.SetActivityType(Dynastream.Fit.ActivityType.Cycling);
recordMesg.SetPositionLat(latSemicircles);
recordMesg.SetPositionLong(lonSemicircles);
encodeDemo.Write(recordMesg);

systemTimeNow = systemTimeNow.AddSeconds(1);
}

eventMesg = new EventMesg();
eventMesg.SetTimestamp(new Dynastream.Fit.DateTime(systemTimeNow));
eventMesg.SetTimerTrigger(0);
eventMesg.SetEvent(Event.Timer);
eventMesg.SetEventType(EventType.StopAll);
encodeDemo.Write(eventMesg);


LapMesg lapMesg = new LapMesg();
lapMesg.SetTimestamp(new Dynastream.Fit.DateTime(systemTimeNow));
lapMesg.SetTotalElapsedTime(20);
lapMesg.SetMessageIndex(0);
lapMesg.SetLapTrigger(LapTrigger.SessionEnd);
encodeDemo.Write(lapMesg);


eventMesg = new EventMesg();
eventMesg.SetTimestamp(new Dynastream.Fit.DateTime(systemTimeNow));
eventMesg.SetTimerTrigger(0);
eventMesg.SetEvent(Event.Session);
eventMesg.SetEventType(EventType.StopDisableAll);
encodeDemo.Write(eventMesg);


SessionMesg sessi SessionMesg();
sessionMesg.SetTimestamp(new Dynastream.Fit.DateTime(systemTimeNow));
sessionMesg.SetTotalElapsedTime(20);
sessionMesg.SetMessageIndex(0);
sessionMesg.SetSport(Sport.Cycling);
encodeDemo.Write(sessionMesg);

ActivityMesg activityMesg = new ActivityMesg();
activityMesg.SetTimestamp(new Dynastream.Fit.DateTime(systemTimeNow));
activityMesg.SetTotalTimerTime(20);
activityMesg.SetNumSessions(1);
activityMesg.SetEvent(Event.Workout);
activityMesg.SetEventType(EventType.StopAll);
activityMesg.SetType(Activity.Manual);
encodeDemo.Write(activityMesg);


// Update header datasize and file CRC
encodeDemo.Close();
fitDest.Close();
}