UniformCorewiseGeometryOps.retract
==================================

.. py:method:: t3toolbox.backend.geometry.UniformCorewiseGeometryOps.retract(frame_data, var_sc, aux=None)

   .. code-block:: python

      def retract(self, frame_data, var_sc, aux=None):


   The additive retraction (mean-tied first when shared, which keeps tied-in giving tied-out).