void timer_Tick(object sender, object e)
{
#if WINDOWS_PHONE_APP
Windows.Devices.Geolocation.Geopoint topLeft = null;
try
{
this.MapControl.GetLocationFromOffset(new Windows.Foundation.Point(0, 0), out topLeft);
}
catch
{
var topOfMap = new Windows.Devices.Geolocation.Geopoint(new Windows.Devices.Geolocation.BasicGeoposition()
{
Latitude = 85,
Longitude = 0
});
Windows.Foundation.Point topPoint;
this.MapControl.GetOffsetFromLocation(topOfMap, out topPoint);
this.MapControl.GetLocationFromOffset(new Windows.Foundation.Point(0, topPoint.Y), out topLeft);
}
Windows.Devices.Geolocation.Geopoint bottomRight = null;
try
{
this.MapControl.GetLocationFromOffset(new Windows.Foundation.Point(this.MapControl.ActualWidth, this.MapControl.ActualHeight), out bottomRight);
}
catch
{
var bottomOfMap = new Windows.Devices.Geolocation.Geopoint(new Windows.Devices.Geolocation.BasicGeoposition()
{
Latitude = -85,
Longitude = 0
});
Windows.Foundation.Point bottomPoint;
this.MapControl.GetOffsetFromLocation(bottomOfMap, out bottomPoint);
this.MapControl.GetLocationFromOffset(new Windows.Foundation.Point(0, bottomPoint.Y), out bottomRight);
}
if (topLeft != null && bottomRight != null)
{
var bounds = new Windows.Devices.Geolocation.GeoboundingBox(topLeft.Position, bottomRight.Position);
_mapBounds = new Envelope(bounds.SoutheastCorner.Latitude, bounds.NorthwestCorner.Longitude, bounds.NorthwestCorner.Latitude, bounds.SoutheastCorner.Longitude);
}
#else
var bounds = this.MapControl.Bounds;
_mapBounds = new Envelope(bounds.South, bounds.West, bounds.North, bounds.East);
#endif
}
/// <summary>
/// Initializes a new instance of the <see cref="GeoboundingBox"/> class, a
/// Wpf-enabled wrapper for <see cref="Windows.Devices.Geolocation.GeoboundingBox"/>
/// </summary>
public GeoboundingBox(Windows.Devices.Geolocation.GeoboundingBox instance)
{
this.UwpInstance = instance;
}
