curvetest-Jon -2 -2 2 2 -2 2 2 -2 -2 -2 -2 -2 -2 0 2 -2 0 -2 2 0 -2 2 0 2 -2 2 2 2 2 2 2 2 -2 -2 2 -2 4 0.57735 0.57735 -0.57735 6 0.57735 -0.57735 -0.57735 4 0 0.5 -1 5 0 -1 -1 0 2 1 0 3 2 4 6 5 4 7 6 0 7 4 0 1 7 1 6 7 1 2 6 2 5 6 2 3 5 4 3 0 4 5 3