private static void PostProcessPointIndex(TrackLap lap, ref int firstIndex)
{
foreach (TrackPoint point in lap.Points)
{
point.Index = firstIndex++;
}
}
private static void PostProcessPointTimeDelta(TrackLap lap, DateTime startTime)
{
foreach (TrackPoint point in lap.Points)
{
point.TimeDelta = point.Time - startTime;
}
}
private static TrackActivity ConvertTrack(GpxTrack gpxTrack)
{
TrackActivity track = new TrackActivity();
track.Laps = new List <TrackLap>();
track.Waypoints = new List <TrackWaypoint>();
track.Name = gpxTrack.Name;
track.Description = gpxTrack.Description;
foreach (GpxTrackSegment segment in gpxTrack.TrackSegments)
{
TrackLap lap = new TrackLap();
lap.Points = new List <TrackPoint>();
foreach (GpxTrackPoint gpxPt in segment.TrackPoints)
{
TrackPoint pt = new TrackPoint();
pt.Latitude = (float)gpxPt.Lat;
pt.Longitude = (float)gpxPt.Lon;
pt.Altitude = (float)gpxPt.Elevation;
pt.Time = gpxPt.Time;
lap.Points.Add(pt);
}
track.Laps.Add(lap);
}
return(track);
}
private static TrackActivity ConvertCourse(TcxCourse tcxCourse)
{
TrackActivity track = new TrackActivity();
track.Laps = new List <TrackLap>();
track.Waypoints = new List <TrackWaypoint>();
track.Name = tcxCourse.Name;
TrackLap lap = new TrackLap();
lap.Points = new List <TrackPoint>();
if (tcxCourse.CoursePoints != null)
{
foreach (TcxCoursePoint tcxCoursePoint in tcxCourse.CoursePoints)
{
track.Waypoints.Add(ConvertWaypoint(tcxCoursePoint));
}
}
if (tcxCourse.TrackpointList != null && tcxCourse.TrackpointList.Trackpoints != null)
{
foreach (TcxTrackPoint tcxPt in tcxCourse.TrackpointList.Trackpoints)
{
TrackPoint pt = ConvertTrackPoint(tcxPt);
lap.Points.Add(pt);
}
}
track.Laps.Add(lap);
return(track);
}
private static void PostProcessPointDistance(TrackLap lap)
{
TrackPoint prevPoint = lap.Points[0];
double accDist = 0;
foreach (TrackPoint point in lap.Points)
{
accDist += ComputeDistance(point, prevPoint);
point.Distance = (float)accDist;
prevPoint = point;
}
}
private static void ComputeSpeed(TrackLap lap, TrackPoint pt)
{
const int range = 2;
int lapIndex = pt.Index - lap.FirstPointIndex;
// compute speed from [-range..range] around index
int lowBound = Math.Max(lapIndex - range, 0);
int highBound = Math.Min(lapIndex + range, lap.Points.Count - 1);
float deltaDistance = lap.Points[highBound].Distance - lap.Points[lowBound].Distance;
TimeSpan deltaTime = lap.Points[highBound].Time - lap.Points[lowBound].Time;
if (deltaTime != TimeSpan.Zero)
{
pt.Speed = 0.001f * deltaDistance / (float)deltaTime.TotalHours;
}
}
private static void PostProcessLapData(TrackLap lap)
{
if (lap.Points.Count < 2)
{
return;
}
if (lap.Points[lap.Points.Count - 1].Distance == 0.0)
{
PostProcessPointDistance(lap);
}
lap.StartTime = lap.Points[0].Time;
lap.TotalDistance = lap.Points[lap.Points.Count - 1].Distance - lap.Points[0].Distance;
lap.TotalTime = lap.Points[lap.Points.Count - 1].Time - lap.Points[0].Time;
float accumAsc = 0;
float accumDesc = 0;
float prevAlti = lap.Points[0].Altitude;
foreach (TrackPoint pt in lap.Points)
{
// compute accumulated ascent/descent
float diff = pt.Altitude - prevAlti;
prevAlti = pt.Altitude;
if (diff > 0)
{
accumAsc += diff;
}
else
{
accumDesc -= diff; // diff is negative so (-diff) is positive.
}
pt.AccAsc = accumAsc;
pt.AccDesc = accumDesc;
ComputeSpeed(lap, pt);
}
}
private static TrackActivity ConvertActivity(TcxActivity tcxActivity)
{
TrackActivity track = new TrackActivity();
track.Laps = new List <TrackLap>();
track.Waypoints = new List <TrackWaypoint>();
foreach (TcxActivityLap tcxLap in tcxActivity.Laps)
{
TrackLap lap = new TrackLap();
lap.Points = new List <TrackPoint>();
if (tcxLap.Tracks != null)
{
foreach (TcxTrackPointList tcxTrack in tcxLap.Tracks)
{
if (tcxTrack.Trackpoints != null)
{
foreach (TcxTrackPoint tcxPoint in tcxTrack.Trackpoints)
{
TrackPoint pt = ConvertTrackPoint(tcxPoint);
if (pt != null)
{
lap.Points.Add(pt);
}
}
}
}
}
track.Laps.Add(lap);
}
return(track);
}