Function Inv

engine/dlib/src/dlib/transform.h:124–132

* Invert a transform * @param t Transform to invert * @return Inverted transform */

     * @return Inverted transform
     */
    inline TransformS1 Inv(const TransformS1& t)
    {
        assert(t.GetScale() != 0.0f && "Transform can not be inverted (0 scale).");
        TransformS1 res;
        res.SetRotation(conj(t.GetRotation()));
        res.SetScale(1.0f / t.GetScale());
        res.SetTranslation(rotate(res.GetRotation(), -t.GetTranslation()) * res.GetScale());
        return res;
    }

    /**
     * Convert a transform into a 4-dim matrix