public static GpsLog FromNmeaGprmcFile(string filename)
{
GpsLog log = new GpsLog();
FileStream fs = File.OpenRead(filename);
TextReader tr = new StreamReader(fs);
String inputString = tr.ReadToEnd();
tr.Close();
Regex regexGprmc = new Regex(REGEX_NMEA_GPRMC);
Match match = regexGprmc.Match(inputString);
while (match.Success)
{
try
{
GpsLogEntry e = new GpsLogEntry();
e.Latitude = Convert(match.Groups["lat"].Value);
if (match.Groups["latdir"].Value == "S")
{
e.Latitude *= -1;
}
e.Longitude = Convert(match.Groups["lon"].Value);
if (match.Groups["londir"].Value == "W")
{
e.Longitude *= -1;
}
string time = match.Groups["time"].Value;
int h = int.Parse(time.Substring(0, 2));
int min = int.Parse(time.Substring(2, 2));
int s = int.Parse(time.Substring(4, 2));
string date = match.Groups["date"].Value;
int d = int.Parse(date.Substring(0, 2));
int m = int.Parse(date.Substring(2, 2));
int y = int.Parse(date.Substring(4, 2));
if (y > 80)
{
y += 1900;
}
else
{
y += 2000;
}
e.Time = new DateTime(y, m, d, h, min, s); // TODO ms?
log.AddEntry(e);
}
catch { }
match = match.NextMatch();
}
Regex regexGpwpl = new Regex(REGEX_NMEA_GPWPL);
match = regexGpwpl.Match(inputString);
while (match.Success)
{
try
{
NamedGpsLogEntry e = new NamedGpsLogEntry();
e.Latitude = Convert(match.Groups["lat"].Value);
if (match.Groups["latdir"].Value == "S")
{
e.Latitude *= -1;
}
e.Longitude = Convert(match.Groups["lon"].Value);
if (match.Groups["londir"].Value == "W")
{
e.Longitude *= -1;
}
e.Name = match.Groups["name"].Value.Trim();
log.Waypoints.Add(e);
}
catch {}
match = match.NextMatch();
}
return(log);
}
public static GpsLog FromNmeaGpggaFile(string filename)
{
GpsLog log = new GpsLog();
FileStream fs = File.OpenRead(filename);
TextReader tr = new StreamReader(fs);
string line = tr.ReadLine();
TimeSpan lastTime = new TimeSpan(0, 0, 0);
int dayoffset = 0;
while (line != null)
{
// $GPGGA,hhmmss.ss,ddmm.mmmm,n,dddmm.mmmm,e,q,ss,y.y,a.a,z,g.g,z,t.t,iii*CC
// $GPGGA,183456.000,3424.8054,N,11941.2676,W,1,05,1.4,-2.7,M,-33.3,M,,0000*44
if (line.StartsWith("$GPGGA"))
{
string[] parts = line.Split(',');
if (parts.Length >= 7)
{
string time = parts[1];
string lat = parts[2];
string latdir = parts[3];
string lon = parts[4];
string londir = parts[5];
string quality = parts[6];
if (time != "" &&
lat != "" &&
(latdir == "N" || latdir == "S") &&
lon != "" &&
(londir == "E" || londir == "W") &&
quality != "")
{
try
{
GpsLogEntry e = new GpsLogEntry();
e.Latitude = Convert(lat);
if (latdir == "S")
{
e.Latitude *= -1;
}
e.Longitude = Convert(lon);
if (londir == "W")
{
e.Longitude *= -1;
}
int h = int.Parse(time.Substring(0, 2));
int m = int.Parse(time.Substring(2, 2));
int s = int.Parse(time.Substring(4, 2));
TimeSpan currentTime = new TimeSpan(dayoffset, h, m, s); //TODO ms?
if (lastTime.CompareTo(currentTime) > 0)
{
dayoffset++;
currentTime = new TimeSpan(dayoffset, h, m, s); //TODO ms?
}
lastTime = currentTime;
// Fixed when starting to use DatetTime Type
e.Time = new DateTime(2000, 0, currentTime.Days, currentTime.Hours, currentTime.Minutes, currentTime.Seconds);
log.AddEntry(e);
}
catch
{
}
}
}
}
line = tr.ReadLine();
}
return(log);
}