/// <summary>
/// Scrolls through patient slices in the direciton of the camera normal vector
/// </summary>
/// <param name="direction">Positive or negative value indicating direction with respect to the normal vector</param>
public void Scroll(double direction, double amount)
{
if (direction == 0)
{
return;
}
Point3d movDir = new Point3d();
Normal.CopyTo(movDir);
movDir *= (direction / Math.Abs(direction));
Position += movDir * amount;
this.onUpdateView();
}