public void UpdateDistances()
{
foreach (var station in this.StationSource)
{
station.Distance = (int)(GeoUtil.DistanceTo(station.Location.Position, this.myLocation.Position) * 1000.0);
}
var ordered = this.StationSource.OrderBy(x => x.Distance);
this.StationSource = new ObservableCollection <StationViewModel>(ordered);
}
private bool StationSourceFilter(StationViewModel station)
{
if (station == null)
{
return(false);
}
var myCity = Cities.CurrentCity;
if (myCity == null)
{
return(false);
}
if (GeoUtil.DistanceTo(station.Location.Position, myCity.Center) < 50000)
{
return(true);
}
return(false);
}
private void SelectNearestStationWithAvailablilty(Predicate <StationViewModel> condition)
{
double minDist = Double.MaxValue;
StationViewModel nearestStation = null;
foreach (var station in this.StationSource)
{
double dist = GeoUtil.DistanceTo(myLocation.Position, station.Location.Position);
if (dist < minDist && condition(station))
{
nearestStation = station;
minDist = dist;
}
}
this.SelectStation(nearestStation);
if (nearestStation != null)
{
this.MapCenter = nearestStation.Location;
}
}
/// <summary>
/// Calculates the distance from this instance to destination location (in meters).
/// </summary>
/// <param name="src">The <see cref="IGeoLocation"/> to apply the method to.</param>
/// <param name="dst">The destination location.</param>
/// <param name="radiusofearthinmeters">The radius of the earth in meters (default: 6371000).</param>
/// <returns>Returns the distance, in meters, from this instance to destination.</returns>
/// <remarks>
/// Note that we use the <a href="http://en.wikipedia.org/wiki/International_System_of_Units">International
/// System of Units (SI)</a>; units of distance are specified in meters. If you want to use imperial system (e.g.
/// miles, nautical miles, yards, foot and other units) you need to convert from/to meters. You can use the
/// helper methods <see cref="GeoUtil.MilesToMeters"/> / <see cref="GeoUtil.MetersToMiles"/> and
/// <see cref="GeoUtil.YardsToMeters"/> / <see cref="GeoUtil.MetersToYards"/> for quick conversion.
/// </remarks>
/// <seealso cref="GeoUtil.MilesToMeters"/>
/// <seealso cref="GeoUtil.MetersToMiles"/>
/// <seealso cref="GeoUtil.YardsToMeters"/>
/// <seealso cref="GeoUtil.MetersToYards"/>
public static double DistanceTo(this IGeoLocation src, IGeoLocation dst, double radiusofearthinmeters)
{
return(GeoUtil.DistanceTo(src, dst, radiusofearthinmeters));
}
/// <summary>
/// Calculates the distance from the this instance to destination location (in meters).
/// </summary>
/// <param name="src">The <see cref="IGeoLocation"/> to apply the method to.</param>
/// <param name="dst">The destination location.</param>
/// <returns>Returns the distance, in meters, from this instance to destination.</returns>
/// <remarks>
/// Note that we use the <a href="http://en.wikipedia.org/wiki/International_System_of_Units">International
/// System of Units (SI)</a>; units of distance are specified in meters. If you want to use imperial system (e.g.
/// miles, nautical miles, yards, foot and other units) you need to convert from/to meters. You can use the
/// helper methods <see cref="GeoUtil.MilesToMeters"/> / <see cref="GeoUtil.MetersToMiles"/> and
/// <see cref="GeoUtil.YardsToMeters"/> / <see cref="GeoUtil.MetersToYards"/> for quick conversion.
/// </remarks>
/// <seealso cref="GeoUtil.MilesToMeters"/>
/// <seealso cref="GeoUtil.MetersToMiles"/>
/// <seealso cref="GeoUtil.YardsToMeters"/>
/// <seealso cref="GeoUtil.MetersToYards"/>
public static double DistanceTo(this IGeoLocation src, IGeoLocation dst)
{
return(GeoUtil.DistanceTo(src, dst));
}
/// <summary>
/// Calculates the distance from this instance to destination location (in meters).
/// </summary>
/// <param name="loc">The <see cref="IGeoLocation"/> to apply the method to.</param>
/// <param name="lat">The latitude of the destination point.</param>
/// <param name="lng">The longitude of the destination point.</param>
/// <param name="radiusofearthinmeters">The radius of the earth in meters (default: 6371000).</param>
/// <returns>Returns the distance, in meters, from this instance to destination.</returns>
/// <remarks>
/// Note that we use the <a href="http://en.wikipedia.org/wiki/International_System_of_Units">International
/// System of Units (SI)</a>; units of distance are specified in meters. If you want to use imperial system (e.g.
/// miles, nautical miles, yards, foot and other units) you need to convert from/to meters. You can use the
/// helper methods <see cref="GeoUtil.MilesToMeters"/> / <see cref="GeoUtil.MetersToMiles"/> and
/// <see cref="GeoUtil.YardsToMeters"/> / <see cref="GeoUtil.MetersToYards"/> for quick conversion.
/// </remarks>
/// <seealso cref="GeoUtil.MilesToMeters"/>
/// <seealso cref="GeoUtil.MetersToMiles"/>
/// <seealso cref="GeoUtil.YardsToMeters"/>
/// <seealso cref="GeoUtil.MetersToYards"/>
public static double DistanceTo(this IGeoLocation loc, double lat, double lng, double radiusofearthinmeters)
{
return(GeoUtil.DistanceTo(loc, new GeoName {
Latitude = lat, Longitude = lng
}, radiusofearthinmeters));
}
/// <summary>
/// Calculates the distance from this instance to destination location (in meters).
/// </summary>
/// <param name="loc">The <see cref="IGeoLocation"/> to apply the method to.</param>
/// <param name="lat">The latitude of the destination point.</param>
/// <param name="lng">The longitude of the destination point.</param>
/// <returns>Returns the distance, in meters, from this instance to destination.</returns>
/// <remarks>
/// Note that we use the <a href="http://en.wikipedia.org/wiki/International_System_of_Units">International
/// System of Units (SI)</a>; units of distance are specified in meters. If you want to use imperial system (e.g.
/// miles, nautical miles, yards, foot and other units) you need to convert from/to meters. You can use the
/// helper methods <see cref="GeoUtil.MilesToMeters"/> / <see cref="GeoUtil.MetersToMiles"/> and
/// <see cref="GeoUtil.YardsToMeters"/> / <see cref="GeoUtil.MetersToYards"/> for quick conversion.
/// </remarks>
/// <seealso cref="GeoUtil.MilesToMeters"/>
/// <seealso cref="GeoUtil.MetersToMiles"/>
/// <seealso cref="GeoUtil.YardsToMeters"/>
/// <seealso cref="GeoUtil.MetersToYards"/>
public static double DistanceTo(this IGeoLocation loc, double lat, double lng)
{
return(GeoUtil.DistanceTo(loc, new GeoName {
Latitude = lat, Longitude = lng
}));
}
