public override FileInformation ExtractInformation(FilePath file)
{
var information = new FileInformation();
var gpxFiles = _gpxDataAccess.Read(File.ReadAllText(file.FullPath));
var date = (from t in gpxFiles.Tracks
from s in t.Segments
from p in s.TrackPoints
where p.TimeSpecified
select p.Time).ToArray();
if (date.Any())
{
information.AddInformation(FileInformationNames.GpxDate, date.Min());
}
return(information);
}
public override void ChangeContent(FilePath newFile)
{
var file = new FileInfo(newFile.FullPath);
if (file.Exists)
{
var reader = file.OpenText();
var content = reader.ReadToEnd();
var gpxFile = _gpxDataAccess.Read(content);
var newTracks = new List <GpxTrack>();
foreach (var currentTrack in gpxFile.Tracks)
{
var points = currentTrack.Segments.SelectMany(x => x.TrackPoints).ToArray();
var distance = new double[points.Length - 1];
var time = new TimeSpan[points.Length - 1];
var speed = new double[points.Length - 1];
var newTrack = CreateNewTrack(currentTrack);
for (int i = 0; i < points.Length - 1; i++)
{
distance[i] = points[i].Coordinate.DistanceTo(points[i + 1].Coordinate);
time[i] = points[i + 1].Time.Subtract(points[i].Time);
speed[i] = (distance[i] / 1000) / time[i].TotalHours;
var conditionCounter = 0;
if (distance[i] > 500)
{
conditionCounter++;
}
if (time[i] > TimeSpan.FromMinutes(5))
{
conditionCounter++;
}
if (speed[i] > 1500)
{
conditionCounter++;
}
newTrack.Segments[0].TrackPoints.Add(points[i]);
if (conditionCounter >= 2)
{
newTracks.Add(newTrack);
newTrack = CreateNewTrack(currentTrack);
}
}
newTracks.Add(newTrack);
}
gpxFile.Tracks.Clear();
foreach (var track in newTracks)
{
var pointCountArray = track.Segments.SelectMany(x => x.TrackPoints).ToArray();
var pointCount = pointCountArray.Length;
if (pointCount < 10)
{
continue;
}
if (pointCount < 100 && !ReachedDistance(pointCountArray))
{
continue;
}
gpxFile.Tracks.Add(track);
}
var newContent = _gpxDataAccess.Write(gpxFile);
reader.Close();
reader.Dispose();
File.WriteAllText(newFile.FullPath, newContent);
return;
}
throw new InvalidOperationException("File during operation of service was removed from original location");
}