public static void DrawRotate(double rot)
{
if (DB.Picture == null)
{
throw new DDError();
}
DDUtils.Rotate(ref DB.Layout.LTX, ref DB.Layout.LTY, rot);
DDUtils.Rotate(ref DB.Layout.RTX, ref DB.Layout.RTY, rot);
DDUtils.Rotate(ref DB.Layout.RBX, ref DB.Layout.RBY, rot);
DDUtils.Rotate(ref DB.Layout.LBX, ref DB.Layout.LBY, rot);
}