public static void DeleteEntry(LogEntry aEntry)
{
if (aEntry != null)
{
if (mEntries.Remove(aEntry.Key))
{
Dirty = true;
FireEntriesChanged();
}
}
}
public static LogEntry Import(string aKey, string aPath)
{
string[] lines = File.ReadAllLines(aPath);
if (lines.Length > 2)
{
Record rec = ParseRecord(lines[2]);
LogEntry entry = new LogEntry(aKey, rec.Time, lines.Length);
entry.Records.Add(rec);
for (int i = 3; i < lines.Length; i++)
{
entry.Records.Add(ParseRecord(lines[i]));
}
return entry;
}
return null;
}
public static void CalculateMissingData(LogEntry aEntry)
{
int num = aEntry.Records.Count;
for (int i = 1; i < num; i++)
{
Record a = aEntry.Records[i];
Record b = aEntry.Records[i - 1];
// calculate differences.
double timeDiff = (a.Time - b.Time).TotalSeconds;
double altitudeDiff = a.Altitude - b.Altitude;
double latDiff = DistanceInMeters(a.Location.Lat, b.Location.Lat);
double lngDiff = DistanceInMeters(a.Location.Lng, b.Location.Lng);
// calculate velocities.
a.VelocityDown = (float)(-altitudeDiff / timeDiff);
a.VelocityNorth = (float)(latDiff / timeDiff);
a.VelocityEast = (float)(-lngDiff / timeDiff);
// store result.
aEntry.Records[i] = a;
}
}
private static void AddEntry(string aName, LogEntry aEntry)
{
if (aEntry != null)
{
Dirty = true;
mEntries.Add(aName, aEntry);
}
}
public static void Import(string aKey, GpxFile aFile, AddEntryCallback aCallback)
{
if (aFile != null)
{
// apply some basic filtering of loaded GPX data
FileFilterChain filterChain = new FileFilterChain();
filterChain.Filters.Add(new RemoveErrorPointsFilter());
aFile = filterChain.ApplyFilters(aFile);
// convert to LogEntry.
int idx = 0;
foreach (Track track in aFile.Tracks)
{
if (track.Segments.Count > 0)
{
TrackSegment firstSeg = track.Segments[0];
string key = string.Format("{0}/{1}[{2}]", aKey, track.Name, idx);
DateTime time = (DateTime)firstSeg.StartTime;
LogEntry entry = new LogEntry(key, time, firstSeg.PointsCount);
foreach (TrackSegment seg in track.Segments)
{
foreach (TrackPoint pnt in seg.Points)
{
Record rec = new Record();
rec.Location = new PointLatLng(pnt.Location.Y, pnt.Location.X);
if (pnt.Time != null)
{
rec.Time = (DateTime)pnt.Time;
}
if (pnt.Elevation != null)
{
rec.Altitude = (float)pnt.Elevation;
}
entry.Records.Add(rec);
}
}
CalculateMissingData(entry);
aCallback(key, entry);
idx++;
}
}
}
}
public static LogEntry Read(string aKey, BinaryReader aReader)
{
int version = aReader.ReadByte();
DateTime date = DateTime.FromBinary(aReader.ReadInt64());
int count = aReader.ReadInt32();
LogEntry result = new LogEntry(aKey, date, count);
for (int i = 0; i < count; ++i)
{
Record rec = new Record();
rec.Time = DateTime.FromBinary(aReader.ReadInt64());
rec.Location = new PointLatLng(aReader.ReadDouble(), aReader.ReadDouble());
rec.Altitude = aReader.ReadSingle();
rec.VelocityNorth = aReader.ReadSingle();
rec.VelocityEast = aReader.ReadSingle();
rec.VelocityDown = aReader.ReadSingle();
result.Records.Add(rec);
}
return result;
}
