private void Watcher_PositionChanged(object sender, GeoPositionChangedEventArgs<GeoCoordinate> e)
{
var coord = new GeoCoordinate(e.Position.Location.Latitude, e.Position.Location.Longitude);
if (_line.Path.Count > 0)
{
var previousPoint = _line.Path.Last();
var distance = coord.GetDistanceTo(previousPoint);
var millisPerKilometer = (1000.0 / distance) * (System.Environment.TickCount - _previousPositionChangeTick);
_kilometres += distance / 1000.0;
paceLabel.Text = TimeSpan.FromMilliseconds(millisPerKilometer).ToString(@"mm\:ss");
distanceLabel.Text = string.Format("{0:f2} km", _kilometres);
caloriesLabel.Text = string.Format("{0:f0}", _kilometres * 65); // an average of 65 calories burned per kilometer
PositionHandler handler = new PositionHandler();
var heading = handler.CalculateBearing(new Position(previousPoint), new Position(coord));
Map.SetView(coord, Map.ZoomLevel, heading, MapAnimationKind.Parabolic);
ShellTile.ActiveTiles.First().Update(new IconicTileData()
{
Title = "WP8Runner",
WideContent1 = string.Format("{0:f2} km", _kilometres),
WideContent2 = string.Format("{0:f0} calories", _kilometres * 65), // an average of 65 calories burned per kilometer
});
}
else
{
Map.Center = coord;
}
_line.Path.Add(coord);
_previousPositionChangeTick = System.Environment.TickCount;
}
public void SetUp()
{
handler = new PositionHandler();
}