/usr/share/dune-grid/grids/amc/grid-3-3.amc is in libdune-grid-dev 2.5.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | DIM: 3
DIM_OF_WORLD: 3
number of vertices: 8
number of elements: 6
vertex coordinates:
0.0 0.0 0.0
1.0 0.0 0.0
0.0 0.0 1.0
1.0 0.0 1.0
1.0 1.0 0.0
1.0 1.0 1.0
0.0 1.0 0.0
0.0 1.0 1.0
element vertices:
0 5 4 1
0 5 3 1
0 5 3 2
0 5 4 6
0 5 7 6
0 5 7 2
element boundaries:
1 1 0 0
1 1 0 0
1 1 0 0
1 1 0 0
1 1 0 0
1 1 0 0
element neighbours:
-1 -1 1 3
-1 -1 0 2
-1 -1 5 1
-1 -1 4 0
-1 -1 3 5
-1 -1 2 4
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