/// <summary>Calculates distance of two positions in km</summary>
/// <param name="pos1">A position</param>
/// <param name="pos2">A position</param>
/// <returns>Distance between given points in km.</returns>
public static decimal CalculateDistance(GpsPoint pos1, GpsPoint pos2)
{
/*double num = ((double)pos2.Latitude - (double)pos1.Latitude) * (Math.PI / 180.0);
* double num2 = ((double)pos2.Longitude - (double)pos1.Longitude) * (Math.PI * 180.0);
* double a = (Math.Sin(num / 2.0) * Math.Sin(num / 2.0)) + (((Math.Cos((double)pos1.Latitude * (Math.PI / 180.0)) * Math.Cos((double)pos2.Latitude * (Math.PI * 180.0))) * Math.Sin(num2 / 2.0)) * Math.Sin(num2 / 2.0));
* if (a < 0) return 0;
* double num4 = 2.0 * Math.Atan2(Math.Sqrt(a), Math.Sqrt(1.0 - a));
* return (decimal)(6371 * num4);*/
return((decimal)Calc((double)pos1.Latitude, (double)pos1.Longitude, (double)pos2.Latitude, (double)pos2.Longitude));
}
public GpsStatistics(TrackerForm form, DateTime startTime, GpsPoint startPosition)
{
if (form == null)
{
throw new ArgumentNullException("form");
}
StartTime = CurrentTime = startTime;
startPos = CurrentPos = startPosition;
this.form = form;
ShowValues(ValueKind.All);
}
public GpsStatistics(TrackerForm form, DateTime startTime, GpsPoint startPosition)
{
if (form == null)
{
throw new ArgumentNullException("form");
}
StartTime = CurrentTime = startTime;
startPos = CurrentPos = startPosition;
this.form = form;
ShowValues(ValueKind.All);
}
/// <summary>Called when point is nearly logged</summary>
/// <param name="time">Logged time</param>
/// <param name="gpsPoint">Actual position</param>
/// <param name="logThisPoint">true when point was logged false when it was not</param>
private void OnPoint(DateTime time, GpsPoint gpsPoint, bool logThisPoint)
{
if (continuing && statistic != null)
{
statistic.PauseTime = statistic.PauseTime + (time - lastLoggedPointTime);
//User pause
}
if (statistic == null)
{//Initialize
statistic = new GpsStatistics(this, time, gpsPoint);
lastKnownElevation = gpsPoint.Altitude;
lastLoggedPointTime = time;
return;
}
statistic.CurrentTime = time;
if (logThisPoint)
{//This point is logged, count it
decimal delta = gpsPoint - statistic.CurrentPos;//km
statistic.SumLength = statistic.SumLength + delta;
statistic.CurrentPos = gpsPoint;
statistic.PointsTotal++;
}
else
{//This point is not logged, pause
statistic.PauseTime = statistic.PauseTime + (time - lastLoggedPointTime);
}
lastLoggedPointTime = time;
if (lastKnownElevation == null)
{//Initialize altitude if necessary
lastKnownElevation = gpsPoint.Altitude;
return;
}
if (logThisPoint && gpsPoint.Altitude.HasValue)
{//Elevation
decimal delta = gpsPoint.Altitude.Value - lastKnownElevation.Value;
if (delta < 0)
{
statistic.SumEleMinus = statistic.SumEleMinus - delta;
}
else
{
statistic.SumElePlus = statistic.SumElePlus + delta;
}
lastKnownElevation = gpsPoint.Altitude;
}
}
/// <summary>Calculates distance of two positions in km</summary>
/// <param name="pos1">A position</param>
/// <param name="pos2">A position</param>
/// <returns>Distance between given points in km.</returns>
public static decimal CalculateDistance(GpsPoint pos1, GpsPoint pos2)
{
/*double num = ((double)pos2.Latitude - (double)pos1.Latitude) * (Math.PI / 180.0);
double num2 = ((double)pos2.Longitude - (double)pos1.Longitude) * (Math.PI * 180.0);
double a = (Math.Sin(num / 2.0) * Math.Sin(num / 2.0)) + (((Math.Cos((double)pos1.Latitude * (Math.PI / 180.0)) * Math.Cos((double)pos2.Latitude * (Math.PI * 180.0))) * Math.Sin(num2 / 2.0)) * Math.Sin(num2 / 2.0));
if (a < 0) return 0;
double num4 = 2.0 * Math.Atan2(Math.Sqrt(a), Math.Sqrt(1.0 - a));
return (decimal)(6371 * num4);*/
return (decimal)Calc((double)pos1.Latitude, (double)pos1.Longitude, (double)pos2.Latitude, (double)pos2.Longitude);
}
