:py:mod:`src.costs.perimeter_shape_gradient`
============================================

.. py:module:: src.costs.perimeter_shape_gradient


Module Contents
---------------

Classes
~~~~~~~

.. autoapisummary::

   src.costs.perimeter_shape_gradient.Perimeter_shape_gradient




.. py:class:: Perimeter_shape_gradient(path_config_file=None, config=None)

   Bases: :py:obj:`src.costs.abstract_shape_gradient.Abstract_shape_gradient`

   Non linear penalization on the perimeter (upper bound)


   .. py:method:: cost(self, S)


   .. py:method:: shape_gradient(self, S, theta_peturbation)

      The implementation of the shape gradient

      :param S: a surface
      :type S: for now only Surface_Fourier are supported
      :param theta_pertubation: see `get_theta_perturbation of a surface`
      :type theta_pertubation: dictionary