algebraic3d curve2d testcurve=(7; 1,0; 1,1; 1.5,1.5; 2,3; 2.5,1.5; 3,1; 3,0; 3; 3,1,2,3; 3,3,4,5; 3,5,6,7); solid something = revolution(0,0,0;1,0,0;testcurve); tlo something;