private void Map1_Loaded(object sender, RoutedEventArgs e)
{
Map1.MapUnit = GeoUnit.Meter;
GeoImage image = new GeoImage(@"SampleData/bing-aerial-900913.png");
GeoSize size = image.GetSize();
GeoImageLayer geoImageLayer = new GeoImageLayer(image, new WorldFile(GeoCommonHelper.GetMaxBound(GeoUnit.Meter), (float)size.Width, (float)size.Height));
LayerOverlay layerOverlay = new LayerOverlay();
layerOverlay.Layers.Add(geoImageLayer);
Map1.Overlays.Add(layerOverlay);
Map1.ZoomToFullBound();
}
public static double GetRotatedAngle(double targetRotation, double currentRotation, double increment)
{
currentRotation = Math.Round(currentRotation, 0);
if (targetRotation != currentRotation)
{
targetRotation = GeoCommonHelper.GetAngleInRange(targetRotation);
currentRotation = GeoCommonHelper.GetAngleInRange(currentRotation);
double rotationDiff = Math.Abs(targetRotation - currentRotation);
if (rotationDiff < 180)
{
if (targetRotation > currentRotation)
{
currentRotation += increment;
if (currentRotation > targetRotation)
{
currentRotation = targetRotation;
}
}
else
{
currentRotation -= increment;
if (currentRotation < targetRotation)
{
currentRotation = targetRotation;
}
}
}
else
{
if (targetRotation > currentRotation)
{
currentRotation -= increment;
if (currentRotation < targetRotation - 360)
{
currentRotation = targetRotation;
}
}
else
{
currentRotation += increment;
if (currentRotation > targetRotation + 360)
{
currentRotation = targetRotation;
}
}
}
}
return(currentRotation);
}
