test2.obj inner -4.000000 0.000000 -2.000000 -- 4.000000 2.000000 0.000000 inner -4.000000 0.000000 -2.000000 -- 0.000000 2.000000 0.000000 leaf -4.000000 0.000000 -2.000000 -- -2.000000 2.000000 0.000000 leaf -2.000000 0.000000 -2.000000 -- 0.000000 2.000000 0.000000 inner 0.000000 0.000000 -2.000000 -- 4.000000 2.000000 0.000000 leaf 0.000000 0.000000 -2.000000 -- 2.000000 2.000000 0.000000 leaf 2.000000 0.000000 -2.000000 -- 4.000000 2.000000 0.000000