scene rotation

in DefState:
    0   // Rotation

in Addring:
    Ring.Rot = Ring.RotDelta * Offset + m_st.Rotation;

void CWhorldView::Rotate(double Degrees, bool Repaint)
{
    POSITION    pos = m_Ring.GetHeadPosition();
    double  r = DTR(Degrees);
    while (pos != NULL) {
        RING&   Ring = m_Ring.GetNext(pos);
        Ring.Rot += r;
    }
    m_st.Rotation = fmod(m_st.Rotation + r, 2 * PI);    // wrap to limit magnitude
    if (Repaint)
        Invalidate();
}

Note that this causes unexpected behavior (addition, subtraction, cancelation) when rotation is inverse of LFO rotation. Also X/Y shifts are NOT rotated, so for example if Aspect Ratio is 2, the asymmetry will remain orthogonal instead of rotating. Solving this would require changes to the drawing code.