OFF
7 5 0
0 0 0.707107
1 1 0.707107
0 1 0
1 0 0
0.5 0.5 0.3
0   0   0.3
0   0   0.4
3 1 3 0
3 2 1 0
3 3 2 0
3 2 3 1
3 4 5 6