MFEM mesh v1.0

#
# MFEM Geometry Types (see mesh/geom.hpp):
#
# POINT       = 0
# SEGMENT     = 1
# TRIANGLE    = 2
# SQUARE      = 3
# TETRAHEDRON = 4
# CUBE        = 5
#

dimension
2

elements
8
1 3 0 1 10 9
1 3 1 2 11 10
1 3 2 3 12 11
1 3 3 4 13 12
2 3 4 5 14 13
2 3 5 6 15 14
2 3 6 7 16 15
2 3 7 8 17 16

boundary
18
3 1 0 1
3 1 1 2
3 1 2 3
3 1 3 4
3 1 4 5
3 1 5 6
3 1 6 7
3 1 7 8
3 1 10 9
3 1 11 10
3 1 12 11
3 1 13 12
3 1 14 13
3 1 15 14
3 1 16 15
3 1 17 16
1 1 9 0
2 1 8 17

vertices
18
2
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1