// /// <summary>
// /// Returns an estimate of the distance between the given sequence of coordinates.
// /// </summary>
// public static double DistanceEstimateInMeter(System.Collections.Generic.List<Coordinate> coordinates)
// {
// var length = 0.0;
// for(var i = 1; i < coordinates.Count; i++)
// {
// length += Coordinate.DistanceEstimateInMeter(coordinates[i - 1].Latitude, coordinates[i - 1].Longitude,
// coordinates[i].Latitude, coordinates[i].Longitude);
// }
// return length;
// }
/// <summary>
/// Offsets this coordinate with a given distance.
/// </summary>
public Coordinate OffsetWithDistances(double meter)
{
var offsetLat = new Coordinate(this.Longitude, this.Latitude + 0.1);
var offsetLon = new Coordinate(this.Longitude + 0.1, this.Latitude);
var latDistance = Coordinate.DistanceEstimateInMeter(offsetLat, this);
var lonDistance = Coordinate.DistanceEstimateInMeter(offsetLon, this);
return(new Coordinate(this.Longitude + (meter / lonDistance) * 0.1,
this.Latitude + (meter / latDistance) * 0.1));
}
/// <summary>
/// Returns an estimate of the distance between the given sequence of coordinates.
/// </summary>
public static float DistanceEstimateInMeter(System.Collections.Generic.List <Coordinate> coordinates)
{
var length = 0f;
for (var i = 1; i < coordinates.Count; i++)
{
length += Coordinate.DistanceEstimateInMeter(coordinates[i - 1].Latitude, coordinates[i - 1].Longitude,
coordinates[i].Latitude, coordinates[i].Longitude);
}
return(length);
}
/// <summary>
/// Creates a box around this coordinate with width/height approximately the given size in meter.
/// </summary>
/// <param name="size">The size in meter.</param>
/// <returns>The size in meter.</returns>
public Box BoxAround(double size)
{
var offsetLat = new Coordinate(this.Longitude, this.Latitude + 0.1);
var offsetLon = new Coordinate(this.Longitude + 0.1, this.Latitude);
var latDistance = Coordinate.DistanceEstimateInMeter(offsetLat, this);
var lonDistance = Coordinate.DistanceEstimateInMeter(offsetLon, this);
return(new Box(this.Longitude - (size / lonDistance) * 0.1,
this.Latitude - (size / latDistance) * 0.1,
this.Longitude + (size / lonDistance) * 0.1,
this.Latitude + (size / latDistance) * 0.1));
}
/// <summary>
/// Returns an estimate of the distance between the two given coordinates.
/// </summary>
/// <remarks>Accuraccy decreases with distance.</remarks>
public static float DistanceEstimateInMeter(Coordinate coordinate1, Coordinate coordinate2)
{
return(Coordinate.DistanceEstimateInMeter(coordinate1.Latitude, coordinate1.Longitude,
coordinate2.Latitude, coordinate2.Longitude));
}
/// <summary>
/// Returns the location between the two coordinates at the given offset distance in meter.
/// </summary>
/// <param name="coordinate1">The first coordinate.</param>
/// <param name="coordinate2">The second coordinate.</param>
/// <param name="offset">The offset in meter starting at coordinate1.</param>
/// <returns></returns>
public static Coordinate LocationAfterDistance(Coordinate coordinate1, Coordinate coordinate2, float offset)
{
return(LocationAfterDistance(coordinate1, coordinate2, Coordinate.DistanceEstimateInMeter(coordinate1, coordinate2),
offset));
}
