code: def project_and_to2dim_ordered_indices(self, pps, plane_center='mean'):
          
          pp2d = self.project_and_to2dim(pps, plane_center)
          return anticlockwise_sort_indices(pp2d)
docs: Projects each points in the point list pps on plane and returns the indices that would sort the
          list of projected points in anticlockwise order
          :param pps: List of points to project on plane
          :return: List of indices that would sort the list of projected points