public bool Equals(GeoCoordinate gc)
{
// If parameter is null return false:
if ((object)gc == null)
{
return false;
}
// Return true if the fields match:
return (this.Latitude == gc.Latitude) && (this.Longitude == gc.Longitude);
}
// Track length in meters
public static double GetTrackLength(string databaseFile)
{
StreamReader streamReader = new StreamReader(databaseFile);
string line = null;
GeoCoordinate gc = new GeoCoordinate(); // To avoid anussigned variable issue
double distance = 0;
// "Zero" iteration
if ((line = streamReader.ReadLine()) != null) gc = GeoCoordinate.GetFromLine(line);
// Iterating further
while ((line = streamReader.ReadLine()) != null)
{
distance += GeoMath.DistanceBetweenCoordinatesMeters(gc, (gc = GeoCoordinate.GetFromLine(line)));
}
streamReader.Close();
return distance;
}
public TrackObjectRecord(GeoCoordinate MessageCoordinate, double Distance, byte[] TReceptionDataExBytes)
{
this.MessageCoordinate = MessageCoordinate;
this.Distance = Distance;
this.TReceptionDataExBytes = TReceptionDataExBytes;
}
// Distance between coordinates in kilometers
public static double DistanceBetweenCoordinates(GeoCoordinate c1, GeoCoordinate c2)
{
return GeoMath.DistanceBetweenCoordinates(c1.Latitude, c1.Longitude, c2.Latitude, c2.Longitude);
}
// s — distance in meters to the point to be added in (c1,c2) derection after c2
public static GeoCoordinate CoordinateSurplus(GeoCoordinate c1, GeoCoordinate c2, double s)
{
double distance = DistanceBetweenCoordinatesMeters(c1, c2);
double f = (distance + s) / distance;
return IntermediateCoordinate(c1, c2, f);
}
// f is distance from (xi. yi) to (x1,y1) divided by distance between (x1,y1) and (x2,y2)
public static GeoCoordinate IntermediateCoordinate(GeoCoordinate c1, GeoCoordinate c2, double f)
{
return new GeoCoordinate() { Longitude = c1.Longitude + f * (c2.Longitude - c1.Longitude), Latitude = c1.Latitude + f * (c2.Latitude - c1.Latitude) };
}
public static int FindNearest(GeoCoordinate point, List<GeoCoordinate> path)
{
double d_mm = 0;
int i_mm = -1;
double d_m = Metrics(point.Latitude, point.Longitude, path[0].Latitude, path[0].Longitude);
int i_m = 0;
double d = 0;
int i = -1;
for (i = 1; i < path.Count - 1; i++)
{
d = Metrics(point.Latitude, point.Longitude, path[i].Latitude, path[i].Longitude);
if (d < d_m)
{
d_mm = d_m;
i_mm = i_m;
d_m = d;
i_m = i;
}
}
return i_m;
}
// Distance between coordinates in meters
public static double DistanceBetweenCoordinatesMeters(GeoCoordinate c1, GeoCoordinate c2)
{
return GeoMath.DistanceBetweenCoordinates(c1, c2) * 1000;
}