( Homepage example: Generation of two crossing tunnels in a brick.
  Then reinforce the tunnels with a grid of beams)

echo -no
number_of_space_dimensions 3
materi_velocity
materi_velocity_integrated
beam_rotation
end_initia

geometry_line  1  -1.  0. 0.5 1. 0. 0.5 0.3
geometry_line  2   0. -1. 0.5 0. 1. 0.5 0.3
geometry_set  1  -geometry_line 1 -geometry_line 2

control_mesh_macro             10  -brick 1 5 10 10
control_mesh_macro_parameters  10  0. 0. 0.5 1. 1. 1.

control_mesh_split             20  -yes

control_mesh_delete_geometry   30  -geometry_line 1
control_mesh_delete_geometry   40  -geometry_line 2

control_mesh_generate_beam     50  2  -geometry_set 1

end_data
