ply
format ascii 1.0
comment Experimental format for polygons with holes.
comment
comment Should look like the following:
comment
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment xx      xx      xx
comment xx      xx      xx
comment xx      xx      xx
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment
comment
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment xxxx xxxxx xxx xxx
comment xxx   xxxx  x  xxx
comment xx     xxx     xxx
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment
comment
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
comment xxxxxxxxxxxxxxxxxx
element vertex 28
property double x
property double y
property double z
element polygon 3
property list int int vertex_index
property list int int inner_vertex_counts
property list int int inner_vertex_index
end_header
0 0 0
0 3 0
5 3 0
5 0 0
1 1 0
2 1 0
2 2 0
1 2 0
3 1 0
4 1 0
4 2 0
3 2 0
0 6 0
0 9 0
5 9 0
5 6 0
1 7 0
2 7 0
2 8 0
1.5 7.5 0
1 8 0
3 7 0
4 7 0
3.5 8 0
0 12 0
0 15 0
5 15 0
5 12 0
4 0 1 2 3         2 4 4    8 4 5 6 7         8 9 10 11
4 12 13 14 15     2 5 3    8 16 17 18 19 20  21 22 23
4 24 25 26 27     0        0
