splinecurves2d 1 3 1.0000000e+00 0.0000000e+00 1 -5.0000000e-01 8.6602540e-01 1 -5.0000000e-01 -8.6602540e-01 1 3 1 0 2 1 2 1 1 0 2 2 3 1 1 0 2 3 1 1
