public double DistanceBetween_Meters(TrackPointGpx other)
{
double flatDistanceMeters = DistanceBetween_Flat_Meters(other);
double zDistanceMeters = Math.Abs(this.Elevation.ElevationMeters - other.Elevation.ElevationMeters);
return(Math.Sqrt(Math.Pow(flatDistanceMeters, 2) + Math.Pow(zDistanceMeters, 2)));
}
// Returns the distance between this track point and another in meters
// taking into account only the delta in x and y coordinates (changes in
// latitude and longitude only... elevation deltas not considered here)
public double DistanceBetween_Flat_Meters(TrackPointGpx other)
{
double xDistanceMeters = Math.Abs(this.GeoCoord.Longitude - other.GeoCoord.Longitude) * ConstantsRt.DEGREES_LONGITUDE_TO_METERS;
double yDistanceMeters = Math.Abs(this.GeoCoord.Latitude - other.GeoCoord.Latitude) * ConstantsRt.DEGREES_LATITUDE_TO_METERS;
// Hypotenuse of triangle: a^2 + b^2 = c^2, where c is hypotenuse; then solve for c
return(Math.Sqrt(Math.Pow(xDistanceMeters, 2) + Math.Pow(yDistanceMeters, 2)));
}
public TrackSegmentGpx ReadTrackSegmentGpx()
{
TrackSegmentGpx seg = new TrackSegmentGpx();
++_lineNumber;
string nextToken = IdentifyToken();
while (nextToken == "trkpt")
{
TrackPointGpx point = ReadTrackPointGpx();
seg.AddTrackPointGpx(point);
nextToken = IdentifyToken();
}
return(seg);
}
