/usr/share/dune-grid/grids/dgf/grid3A.dgf 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 40 | DGF
Simplexgenerator
min-angle 1.1 % quality enhancment
max-area 0.5 % maximum element area restriction
display 0 % show result using the Tetgen viewer
% to use TetGen from a certain path, uncomment this path line
path $HOME/bin % path to Tetgen
#
vertex
0 0 5
0 0 0
0 -10 0
0 -10 10
0 10 10
0 10 5
30 10 0
30 -10 0
30 -10 10
30 10 10
25 10 0
25 0 0
25 0 5
25 10 5
#
boundarysegments
% 2 out, 1 in, 3 slip, 4 reflect
2 0 1 2 3 4 5 % ausgang
1 6 7 8 9 % eingang
3 10 11 12 13 % balken
3 11 12 0 1 % balken
3 13 12 0 5 % balken
3 3 4 9 8 % seite
3 2 3 8 7 % unten
4 6 10 13 5 4 9 % sym. oben
4 6 10 11 1 2 7 % sym. seite
#
# examplegrid12.dgf
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