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

def project_and_to2dim_ordered_indices(self, pps, plane_center='mean'):
        """
        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
        """
        pp2d = self.project_and_to2dim(pps, plane_center)
        return anticlockwise_sort_indices(pp2d)