# Points
15 2 0 1
0 0 0 1
1 1 0 1
2 1 1 5
3 0 1 3
4 0.3 0.3 0
5 0.7 0.3 0
6 0.7 0.7 0
7 0.3 0.7 0
8 0.5 0.5 0
9 0.6 0.5 0
10 0.6 0.6 0
11 0.5 0.6 0
12 0.5 1 3
13 0.5 0.98 0
14 1 0.98 0
# Segments with boundary markers.
16 1
0 0 1 1
1 1 14 2
2 14 2 2
3 2 12 5
4 12 3 3
5 3 0 4
6 4 5 0
7 5 6 0
8 6 7 0
9 7 4 0
10 8 9 6
11 9 10 6
12 10 11 6
13 11 8 6
14 12 13 0
15 13 14 0
# hole
0
# regions
4
0 0.2 0.2 1 5e-4
1 0.4 0.4 2 1e-4
2 0.55 0.55 3 1e-5
3 0.75 0.99 4 1e-5