private bool LoadT2f(string filename, bool showSummary, bool append)
{
bool loaded_ok = false;
IFileSupport fs = null;
int Plot2ndCount_old;
int WaypointsCountOld;
if (append)
{
Plot2ndCount_old = Plot2ndCount;
WaypointsCountOld = WayPointsT2F.Count;
}
else
{
Plot2ndCount_old = 0;
WaypointsCountOld = 0;
}
switch (Path.GetExtension(filename).ToLower())
{
case ".gcc":
fs = new GccSupport(); break;
case ".gpx":
fs = new GpxSupport(); break;
case ".kml":
fs = new KmlSupport(); break;
default:
MessageBox.Show("wrong extension");
return false;
}
if (fs != null)
{
mapUtil.clearNav(false);
loaded_ok = fs.Load(filename, ref WayPointsT2F, PlotDataSize, ref Plot2ndLat, ref Plot2ndLong, ref Plot2ndZ, ref Plot2ndT, ref Plot2ndD, ref T2fSummary, ref Plot2ndCount, append);
graph.scaleCmd = Graph.ScaleCmd.DoAutoscaleNoUndo;
}
if (loaded_ok) // loaded OK
{
// If a new track-to-follow loaded (and main track not exist) - need to reset map zoom/shift vars
if ((Plot2ndCount + WayPointsT2F.Count != 0) && (PlotCount == 0)) { ResetMapPosition(); }
labelFileNameT2F.SetText("Track to Follow: " + Path.GetFileName(filename));
if (Plot2ndCount - Plot2ndCount_old == 0 && WayPointsT2F.Count - WaypointsCountOld > 0) //if no track -> copy WP-data to T2F
{
if (DialogResult.Yes == MessageBox.Show("Use waypoints as track to navigate?", "File only has Waypoints", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1))
{
double OldLong, OldLat;
if (Plot2ndCount > 0)
{
OldLong = Plot2ndLong[Plot2ndCount - 1];
OldLat = Plot2ndLat[Plot2ndCount - 1];
}
else
{
OldLong = WayPointsT2F.lon[WaypointsCountOld];
OldLat = WayPointsT2F.lat[WaypointsCountOld];
}
double deltax, deltay;
UtmUtil utmUtil2 = new UtmUtil(); //use extra utmUtil
utmUtil2.setReferencePoint(OldLat, OldLong);
for (int i = WaypointsCountOld; i < WayPointsT2F.Count; i++)
{
if (Plot2ndCount >= PlotDataSize) // check if we need to decimate arrays
{
for (int j = 0; j < PlotDataSize / 2; j++)
{
Plot2ndLat[j] = Plot2ndLat[j * 2];
Plot2ndLong[j] = Plot2ndLong[j * 2];
Plot2ndZ[j] = Plot2ndZ[j * 2];
Plot2ndT[j] = Plot2ndT[j * 2];
Plot2ndD[j] = Plot2ndD[j * 2];
}
Plot2ndCount = PlotDataSize / 2;
//Decimation *= 2; //use all new data
}
Plot2ndLong[Plot2ndCount] = WayPointsT2F.lon[i];
Plot2ndLat[Plot2ndCount] = WayPointsT2F.lat[i];
deltax = (Plot2ndLong[Plot2ndCount] - OldLong) * utmUtil2.longit2meter;
deltay = (Plot2ndLat[Plot2ndCount] - OldLat) * utmUtil2.lat2meter;
T2fSummary.Distance += Math.Sqrt(deltax * deltax + deltay * deltay);
OldLong = Plot2ndLong[Plot2ndCount]; OldLat = Plot2ndLat[Plot2ndCount];
Plot2ndD[Plot2ndCount] = (int)T2fSummary.Distance;
Plot2ndT[Plot2ndCount] = Plot2ndCount == 0 ? 0 : Plot2ndT[Plot2ndCount - 1] + 1;
Plot2ndZ[Plot2ndCount] = 0;
Plot2ndCount++;
}
}
}
Plot2ndCountUndo = Plot2ndCount;
updateNavData();
if (showSummary) loaded_ok = DialogResult.OK == ShowTrackSummary(T2fSummary);
}
else
{
labelFileNameT2F.SetText("Track to Follow: " + Path.GetFileName(filename) + " load ERROR");
T2fSummary.desc = "Error loading file";
MessageBox.Show("Error reading file or it does not have track data", "Error loading file",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
}
return loaded_ok;
}
