/// <summary>
/// Positions current location indicator on map
/// </summary>
/// <param name="pin">Current location pin object</param>
/// <param name="position">Coordinate at which to place pin</param>
public static void SetCurrentLocationPin(this Map m, CurrentLocationPin pin, GeoCoordinate position)
{
MapOverlay locationOverlay = default(MapOverlay);
// find first layer that includes a CurrentLocationPin
var locationLayer = m.Layers.Where(l => l.Where(o => o.Content.GetType() == pin.GetType()).Count() > 0).FirstOrDefault();
// if there's not an overlay for current location, create it
if (locationLayer == null)
{
// create an overlay
locationOverlay = new MapOverlay();
locationOverlay.Content = pin;
locationOverlay.PositionOrigin = pin.AnchorPoint;
// create a layer and and add overlay to it
locationLayer = new MapLayer();
locationLayer.Add(locationOverlay);
// add layer to the map
m.Layers.Add(locationLayer);
}
// update the position and visibility of the current location pin
if (locationOverlay != null)
{
locationOverlay.GeoCoordinate = position;
pin.Visibility = Visibility.Visible;
}
}