public override List <GoalDeclaration> GetGoalDeclarations()
{
var declarations = new List <GoalDeclaration>();
foreach (var line in TrackLogLines.Where(l => l.StartsWith("E") && l.Substring(7, 3) == "XX1"))
{
var wp = ParseDeclaration(line);
declarations.Add(wp);
}
return(declarations);
}
public override GeoPoint[] GetTrackLog()
{
var lines = TrackLogLines.Where(l => l.StartsWith("B")).ToArray();
var points = new GeoPoint[lines.Length];
Parallel.For(0, lines.Length, i =>
{
points[i] = ParseTrackPoint(lines[i]);
});
return(points.Where(p => p != null).ToArray());
}
public TRKFile(string filePath, TimeSpan utcOffset)
: base(filePath, utcOffset)
{
LogFileExtension = ".trk";
SignatureStatus = SignatureStatus.NotSigned;
//get logger info
LoggerModel = TrackLogLines.FirstOrDefault(l => l[0] == 'P');
if (!string.IsNullOrEmpty(LoggerModel))
{
LoggerModel = LoggerModel.Substring(2).Trim();
}
}
public override List <GeoWaypoint> GetMarkers()
{
var markers = new List <GeoWaypoint>();
foreach (var line in TrackLogLines.Where(l => l.StartsWith("E") && l.Substring(7, 3) == "XX0"))
{
var wp = ParseMarker(line);
if (wp != null)
{
markers.Add(wp);
}
}
return(markers);
}
private int vSpOffset = int.MinValue; //offset of the variometer vertical speed relative to position data origin
public IGCFile(string logFilePath, TimeSpan utcOffset, string altitudeCorrectionsFilePath = null)
: base(logFilePath, utcOffset)
{
IsAltitudeBarometric = true;
LogFileExtension = ".igc";
//get signature info
var v = new Verifier()
{
AcceptOldKey = true
};
if (v.Verify(logFilePath))
{
SignatureStatus = SignatureStatus.Genuine;
}
else
{
SignatureStatus = SignatureStatus.Counterfeit;
}
//get logger info
try
{
var loggerInfo = TrackLogLines.First(l => l.StartsWith("AXXX"));
LoggerModel = loggerInfo.Substring(7);
LoggerSerialNumber = loggerInfo.Substring(4, 3);
}
catch (InvalidOperationException) { }
//get pilot info
try
{
var pilotInfo = TrackLogLines.First(l => l.StartsWith("HFPID"));
PilotId = int.Parse(pilotInfo.Substring(5));
}
catch (InvalidOperationException) { }
//get date
try
{
var dateInfo = TrackLogLines.First(l => l.StartsWith("HFDTE"));
loggerDate = ParseDateAt(dateInfo, 9);
}
catch (InvalidOperationException) { }
try
{
var dateInfo = TrackLogLines.Last(l => l.StartsWith("K"));
loggerDate = ParseDateAt(dateInfo, 11);
}
catch (InvalidOperationException) { }
//get IGC B record format
try
{
var format = TrackLogLines.Last(l => l.StartsWith("I"));
var BRecordVersion = int.Parse(format.Substring(1, 2));
if (BRecordVersion >= 5)
{
var latInfoPos = format.IndexOf("LAD");
dLatOffset = int.Parse(format.Substring(latInfoPos - 4, 2)) - 1 - 7; //7 is the offset to position data origin
var lonInfoPos = format.IndexOf("LOD");
dLonOffset = int.Parse(format.Substring(lonInfoPos - 4, 2)) - 1 - 7;
var vspInfoPos = format.IndexOf("VAR");
vSpOffset = int.Parse(format.Substring(vspInfoPos - 4, 2)) - 1 - 7;
}
}
catch (InvalidOperationException) { }
//check datum
try
{
var datumInfo = TrackLogLines.Last(l => l.StartsWith("HFDTM"));
loggerDatum = Datum.GetInstance(datumInfo.Substring(8));
if (loggerDatum.Name != "WGS84")
{
throw new InvalidOperationException("IGC file datum must be WGS84");
}
}
catch (InvalidOperationException) { }
//load altitude correction
altitudeCorrection = 0;
try
{
var strCorrection = File.ReadAllLines(altitudeCorrectionsFilePath).First(l => l.Trim().StartsWith(LoggerSerialNumber)).Split(new char[] { '=' })[1];
altitudeCorrection = double.Parse(strCorrection) / 10; //altitude correction in file is in dm, convert to m
}
catch { }
Debug.WriteLine(string.Format("Logger altitude correction={0}", altitudeCorrection));
}
public override GeoPoint[] GetTrackLog()
{
var utm = false;
var track = new List <GeoPoint>();
foreach (var line in TrackLogLines.Where(l => l.Length > 0))
{
switch (line[0])
{
case 'G':
{
//Datum
var strFileDatum = line.Substring(2).Trim();
if (strFileDatum == "WGS 84") //Dirty hack!!!
{
strFileDatum = "WGS84";
}
loggerDatum = Datum.GetInstance(strFileDatum);
}
break;
//case 'L':
// //Timezone
// var tz = TimeZoneInfo.CreateCustomTimeZone("x", -TimeSpan.Parse(fields[1]), "", "");
// break;
case 'T':
{
//Track point
var fields = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
DateTime time = DateTime.MinValue;
if (DateTime.TryParse(fields[4] + " " + fields[5], out time)) // if datetime is invalid, time is 0000/00/00 00:00:00
{
time += utcOffset; // utc to local
}
var altitude = double.Parse(fields[7], NumberFormatInfo.InvariantInfo);
GeoPoint p;
if (utm)
{
//file with utm coordinates
p = new GeoPoint(
time: time,
datum: loggerDatum,
zone: fields[1],
easting: double.Parse(fields[2], NumberFormatInfo.InvariantInfo),
northing: double.Parse(fields[3], NumberFormatInfo.InvariantInfo),
altitude: altitude);
}
else
{
//file with latlon coordinates
// WARNING: 'º' is out of ASCII table: don't use split
var strLatitude = fields[2].Substring(0, fields[2].Length - 2);
var ns = fields[2][fields[2].Length - 1];
var strLongitude = fields[3].Substring(0, fields[3].Length - 2);
var ew = fields[3][fields[3].Length - 1];
var lat = double.Parse(strLatitude, NumberFormatInfo.InvariantInfo) * (ns == 'S' ? -1 : 1);
var lon = double.Parse(strLongitude, NumberFormatInfo.InvariantInfo) * (ew == 'W' ? -1 : 1);
p = new GeoPoint(
time: time,
datum: loggerDatum,
latitude: lat,
longitude: lon,
altitude: altitude
);
}
track.Add(p);
}
break;
case 'U':
{
//file coordinate units
var fields = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
utm = (fields[1] == "0");
}
break;
}
}
return(track.ToArray());
}
