*Vertices 2 1 "Frontiers" 0.0 0.0 0.0 x_fact 30.434783 y_fact 30.434783 2 "Signs" 0.0 0.0 0.0 x_fact 0.000000 y_fact 69.565217 *Matrix 0.000000 1.000000 1.000000 0.000000