public double Distance(Location destination)
{
var aLatRad=this.Latitude*Math.PI/180;
var aLonRad=this.Longitude*Math.PI/180;
var bLatRad = destination.Latitude * Math.PI / 180;
var bLonRad = destination.Longitude * Math.PI / 180;
return 20000 / Math.PI * Math.Acos(Math.Sin(aLatRad) * Math.Sin(bLatRad) + Math.Cos(aLatRad) * Math.Cos(bLatRad)* Math.Cos(bLonRad-aLonRad));
}
public City(Country country, System.Xml.Linq.XElement xCity, System.Xml.Linq.XDocument xDoc)
{
this.ID = xCity.Attribute("id").Value;
this.Name = xCity.Element("name").Value;
var xPop = xCity.Element("population");
if (xPop != null)
this.Population = int.Parse(xPop.Value);
var xLat = xCity.Element("latitude");
if (xLat == null)
{
//Debug.WriteLine(this.Name + " ohne Positionsangabe");
}
else
{
Location = new Location()
{
Latitude = double.Parse(xCity.Element("latitude").Value, CultureInfo.InvariantCulture),
Longitude = double.Parse(xCity.Element("longitude").Value, CultureInfo.InvariantCulture)
};
}
this.Country = country;
}