/// <summary>
/// Changes the Center property according to the specified map translation in viewport coordinates.
/// </summary>
public void TranslateMap(Point translation)
{
if (transformCenter != null)
{
ResetTransformCenter();
UpdateTransform();
}
if (translation.X != 0d || translation.Y != 0d)
{
if (Heading != 0d)
{
var cos = Math.Cos(Heading / 180d * Math.PI);
var sin = Math.Sin(Heading / 180d * Math.PI);
translation = new Point(
translation.X * cos + translation.Y * sin,
translation.Y * cos - translation.X * sin);
}
translation.X = -translation.X;
translation.Y = -translation.Y;
Center = MapProjection.TranslateLocation(Center, translation);
}
}
