public DataTableCallsigns FromUSR(string filename)
{
// imports a USR with AirScout user data format
DataTableCallsigns dt = new DataTableCallsigns();
if (!File.Exists(filename))
{
return(dt);
}
try
{
string s = "";
using (StreamReader sr = new StreamReader(File.OpenRead(filename)))
{
while (!sr.EndOfStream)
{
s = sr.ReadLine();
if (!String.IsNullOrEmpty(s) && !s.StartsWith("//"))
{
string[] a = s.Split(';');
// store array values in DataTable
DataRow row = dt.NewRow();
string call = a[0];
double lat = System.Convert.ToDouble(a[1], CultureInfo.InvariantCulture);
double lon = System.Convert.ToDouble(a[2], CultureInfo.InvariantCulture);
GEOSOURCE source = (MaidenheadLocator.IsPrecise(lat, lon, 3) ? GEOSOURCE.FROMUSER : GEOSOURCE.FROMLOC);
string lastupdated = a[6];
if (GeographicalPoint.Check(lat, lon))
{
row["Call"] = call;
row["Lat"] = lat;
row["Lon"] = lon;
row["Source"] = source.ToString();
row["LastUpdated"] = lastupdated;
DataRow oldrow = dt.Rows.Find(row["Call"].ToString());
if (oldrow != null)
{
// call found --> check for update
if (String.Compare(row["LastUpdated"].ToString(), oldrow["LastUpdated"].ToString()) > 0)
{
oldrow["Lat"] = row["Lat"];
oldrow["Lon"] = row["Lon"];
oldrow["Source"] = row["Source"];
oldrow["LastUpdated"] = row["LastUpdated"];
}
}
else
{
// add new row
dt.Rows.Add(row);
}
}
}
}
}
}
catch
{
}
return(dt);
}
public DataTableCallsigns FromDTB(string filename)
{
// imports DTB database from Win-Test
DataTableCallsigns dt = new DataTableCallsigns();
if (!File.Exists(filename))
{
return(dt);
}
try
{
using (StreamReader sr = new StreamReader(File.OpenRead(filename)))
{
while (!sr.EndOfStream)
{
char[] buffer = new char[26];
sr.ReadBlock(buffer, 0, 14);
sr.ReadBlock(buffer, 14, 12);
if (!sr.EndOfStream)
{
string call = "";
string loc = "";
string lastupdated = "";
double lat = double.NaN;
double lon = double.NaN;
int i = 0;
while ((buffer[i] != 0) && (i < 14))
{
call += (char)buffer[i];
i++;
}
i = 14;
while ((i < 21) && (buffer[i] != 0))
{
loc += (char)buffer[i];
i++;
}
i = 21;
while ((i < 26) && (buffer[i] != 0))
{
lastupdated += (char)buffer[i];
i++;
}
call = call.Trim().ToUpper();
loc = loc.Trim().ToUpper();
try
{
if (lastupdated[2] < '5')
{
lastupdated = "20" + lastupdated[2] + lastupdated[3] + "-" + lastupdated[0] + lastupdated[1] + "-01 00:00:00Z";
}
else
{
lastupdated = "19" + lastupdated[2] + lastupdated[3] + "-" + lastupdated[0] + lastupdated[1] + "-01 00:00:00Z";
}
}
catch
{
}
if (MaidenheadLocator.Check(loc))
{
MaidenheadLocator.LatLonFromLoc(loc, PositionInRectangle.MiddleMiddle, out lat, out lon);
}
GEOSOURCE source = GEOSOURCE.FROMLOC;
if (GeographicalPoint.Check(lat, lon))
{
DataRow row = dt.NewRow();
row["Call"] = call;
row["Lat"] = lat;
row["Lon"] = lon;
row["Source"] = source.ToString();
row["LastUpdated"] = lastupdated;
DataRow oldrow = dt.Rows.Find(row["Call"].ToString());
if (oldrow != null)
{
// call found --> check for update
if (String.Compare(row["LastUpdated"].ToString(), oldrow["LastUpdated"].ToString()) > 0)
{
oldrow["Lat"] = row["Lat"];
oldrow["Lon"] = row["Lon"];
oldrow["Source"] = row["Source"];
oldrow["LastUpdated"] = row["LastUpdated"];
}
}
else
{
// add new row
dt.Rows.Add(row);
}
}
}
}
}
}
catch (Exception ex)
{
}
return(dt);
}
public DataTableCallsigns FromCSV(string filename)
{
// imports a variable csv format with autodetect of callsign, loc and timestamp
DataTableCallsigns dt = new DataTableCallsigns();
if (!File.Exists(filename))
{
return(dt);
}
try
{
string s = "";
using (StreamReader sr = new StreamReader(File.OpenRead(filename)))
{
while (!sr.EndOfStream)
{
s = sr.ReadLine();
if (!String.IsNullOrEmpty(s) && !s.StartsWith("//"))
{
string[] a = s.Split(';');
if (a.Length < 2)
{
a = s.Split(',');
}
string call = "";
double lat = double.NaN;
double lon = double.NaN;
string loc = "";
GEOSOURCE source = GEOSOURCE.FROMLOC;
// set lastupdated to filetime if no timestamp is found on file
string filetime = File.GetCreationTimeUtc(filename).ToString("u");
string lastupdated = filetime;
foreach (string entry in a)
{
// search for 1st locator in line
if (MaidenheadLocator.Check(entry) && (entry.Length == 6) && String.IsNullOrEmpty(loc))
{
MaidenheadLocator.LatLonFromLoc(entry, PositionInRectangle.MiddleMiddle, out lat, out lon);
break;
}
// search for 1st callsign in line
if (Callsign.Check(entry) && String.IsNullOrEmpty(call))
{
call = entry.Trim().ToUpper();
}
DateTime timestamp;
if (DateTime.TryParseExact(entry, "yyyy-MM-dd HH:mm:ssZ", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal, out timestamp))
{
lastupdated = timestamp.ToString("u");
}
}
if (GeographicalPoint.Check(lat, lon))
{
// store array values in DataTable
DataRow row = dt.NewRow();
row["Call"] = call;
row["Lat"] = lat;
row["Lon"] = lon;
row["Source"] = source.ToString();
row["LastUpdated"] = lastupdated;
DataRow oldrow = dt.Rows.Find(row["Call"].ToString());
if (oldrow != null)
{
// call found --> check for update
if (String.Compare(row["LastUpdated"].ToString(), oldrow["LastUpdated"].ToString()) > 0)
{
oldrow["Lat"] = row["Lat"];
oldrow["Lon"] = row["Lon"];
oldrow["Source"] = row["Source"];
oldrow["LastUpdated"] = row["LastUpdated"];
}
}
else
{
// add new row
dt.Rows.Add(row);
}
}
}
}
}
}
catch
{
}
return(dt);
}
public DataTableCallsigns FromCALL3(string filename)
{
// imports CALL3.TXT as used by WSJT
// fields are
// CALLSIGN, LOCATOR, EME FLAG, (these first three fields are used by WSJT)
// plus optional fields:
// STATE, FIRST NAME, EMAIL ADDRESS, NOTES, REVISION DATE
DataTableCallsigns dt = new DataTableCallsigns();
if (!File.Exists(filename))
{
return(dt);
}
try
{
string s = "";
using (StreamReader sr = new StreamReader(File.OpenRead(filename)))
{
while (!sr.EndOfStream)
{
s = sr.ReadLine();
if (!String.IsNullOrEmpty(s) && !s.StartsWith("//"))
{
string[] a = s.Split(',');
// store array values in DataTable
string call = a[0];
string loc = a[1];
double lat = double.NaN;
double lon = double.NaN;
if (MaidenheadLocator.Check(loc))
{
MaidenheadLocator.LatLonFromLoc(loc, PositionInRectangle.MiddleMiddle, out lat, out lon);
}
GEOSOURCE source = GEOSOURCE.FROMLOC;
DateTime lastupdated = DateTime.MinValue.ToUniversalTime();
if (a.Length >= 7)
{
// try to get an revision date maybe in various formats
// MMMonVHF
try
{
lastupdated = DateTime.ParseExact(a[7], "MM/yy", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
}
catch (Exception ex)
{
}
}
if (GeographicalPoint.Check(lat, lon))
{
DataRow row = dt.NewRow();
row["Call"] = call;
row["Lat"] = lat;
row["Lon"] = lon;
row["Source"] = source.ToString();
row["LastUpdated"] = lastupdated.ToString("u");
DataRow oldrow = dt.Rows.Find(row["Call"].ToString());
if (oldrow != null)
{
// call found --> check for update
if (String.Compare(row["LastUpdated"].ToString(), oldrow["LastUpdated"].ToString()) > 0)
{
oldrow["Lat"] = row["Lat"];
oldrow["Lon"] = row["Lon"];
oldrow["Source"] = row["Source"];
oldrow["LastUpdated"] = row["LastUpdated"];
}
}
else
{
// add new row
dt.Rows.Add(row);
}
}
}
}
}
}
catch (Exception ex)
{
}
return(dt);
}
