public VectorPoint(GpsPoint point)
{
var el = point.Elevation + RadiusEarth;
var latR = Radians(90 - point.Latitude);
var lonR = Radians(point.Longitude);
X = el * Math.Cos(lonR) * Math.Sin(latR);
Y = el * Math.Sin(lonR) * Math.Sin(latR);
Z = el * Math.Cos(latR);
}
private GpsPoint GetPointFromXml(XElement xel)
{
var ret = new GpsPoint()
{
Elevation = 0.0d,
Latitude = 0.0d,
Longitude = 0.0d,
Time = DateTime.Now
};
var lat = xel.Attributes().FirstOrDefault(xatt => String.Equals(xatt.Name.LocalName, "lat", StringComparison.InvariantCultureIgnoreCase));
if (lat != null)
{
ret.Latitude = double.Parse(lat.Value);
}
var lon = xel.Attributes().FirstOrDefault(xatt => String.Equals(xatt.Name.LocalName, "lon", StringComparison.InvariantCultureIgnoreCase));
if (lon != null)
{
ret.Longitude = double.Parse(lon.Value);
}
var ele = xel.Elements().FirstOrDefault(xele => String.Equals(xele.Name.LocalName, "ele", StringComparison.InvariantCultureIgnoreCase));
if (ele != null)
{
ret.Elevation = double.Parse(ele.Value);
}
var time = xel.Elements().FirstOrDefault(xtime => String.Equals(xtime.Name.LocalName, "time", StringComparison.InvariantCultureIgnoreCase));
if (time != null)
{
ret.Time = DateTime.Parse(time.Value);
}
return(ret);
}
private double DistanceBetween(GpsPoint first, GpsPoint second)
{
return((new VectorPoint(first)).DistanceFrom(new VectorPoint(second)));
}
