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

# format: <attribute> <geometry type> <vertex 0> <vertex 1> ...
elements
3

1 3 0 1 2 3
2 3 0 3 4 5
3 3 0 5 6 1

boundary
6
1 1 1 2
2 1 2 3
3 1 3 4
4 1 4 5
5 1 5 6
6 1 6 1

vertices
7
2
0.0 0.0
-0.50 -0.8660254037844386
0.50 -0.8660254037844386
1.0 0.0
0.50 0.8660254037844386
-0.50 0.8660254037844386
-1.0 0.0