def test_diagonal_rib_2d(self):
diag = DiagonalRib((0.1, -1), (0.3, -1), (0.1, 0.8), (0.5, 0.8), self.cell_no)
l1, l2 = diag.get_flattened(self.glider, ribs_flattened=None)
Graph.Graphics2D([Graph.Line(l1.data.tolist()+l2.data.tolist()[::-1])])
