use <../lib/bezier.scad>; $fn = 100; p0 = [0, 0]; p1 = [0.5, 0.5]; pn = [1, 0]; p_set_1 = [p0, p1, pn]; points_list_p1 = bezier_curve(p_set_1, $fn=$fn); translate([0, 0, 0]) //rotate_extrude(angle = 360) polygon(points_list_p1);