1MMG3D(1) BSD General Commands Manual MMG3D(1)
2
4 mmg3d — Adaptation and optimization of a tetrahedral mesh and implicit
5 domain meshing.
6
8 mmg3d ⟨mesh_file⟩ [output_file] [-sol ⟨solution_file⟩] [-h] [-v] [-m ⟨n⟩]
9 [-d] [-val] [-ar ⟨x⟩] [-nr] [-hmin ⟨x⟩] [-hmax ⟨x⟩] [-hsiz ⟨x⟩]
10 [-hausd ⟨x⟩] [-hgrad ⟨x⟩] [-A] [-opnbdy] [-lag ⟨n⟩] [-ls x]
11 [-nofem] [-optim] [-optimLES] [-noswap] [-nomove] [-noinsert]
12 [-nosurf] [-octree ⟨n⟩] [-rn ⟨n⟩]
13
15 The mmg3d application is dedicated to tetrahedral remeshing. Both sur‐
16 face and volume mesh are modified.
17 By defaults it performs mesh modifications in order to control the sur‐
19 face approximation.
20 Providing a metric file, it adapts the mesh to the prescribed sizes at
21 nodes.
22 Providing a level-set file containing the values of the level-set func‐
23 tion at the mesh nodes, the -ls option allows to explicitly mesh an
24 implicit domain.
25 Without metric file, the -optim option allow to improve the mesh quality
26 with respect to the initial mesh size. -optimLES option allow to improve
27 strongly the isotropic mesh quality for LES simulations.
28
30 1. Generic options:
31 -h Print help.
32 -v ⟨n⟩ Tune level of verbosity.
33 Takes values between -1 and 10.
34 -m ⟨n⟩ Set maximal memory size to n MBytes.
35 -d Turn on debug mode.
36 -val Print the default parameters values.
37 2. File specifications:
39 -in ⟨mesh_file⟩ Input triangulation.
40 -out ⟨output_file⟩ Output triangulation.
41 -sol ⟨solution_file⟩ Load metric or level-set file.
42 3. Parameters:
44 -ar ⟨x⟩ Angle detection.
45 -nr Disable automatic detection of sharp feature
46 (ridges, corners).
47 -hmin ⟨x⟩ Minimal mesh size.
48 -hmax ⟨x⟩ Maximal mesh size.
49 -hsiz ⟨x⟩ Constant mesh size.
50 -hausd ⟨x⟩ Control the Hausdorff distance between the
51 surface mesh and the underlying surface
52 geometry.
53 -hgrad ⟨x⟩ Control the gradation.
54 -A Enable anisotropy (without metric file).
55 -opnbdy Preserve input triangles at the interface of
56 two domains of the same reference.
57 -ls x Create mesh of isovalue x (0.0 if x is not
58 provided).
59 -nofem Do not force Mmg to create a finite element
60 mesh.
61 -optim Mesh improvement with respect to the initial
62 mesh size.
63 -optimLES Strong isotropic mesh optimization for LES
64 computations.
65 -noswap No edge or face flipping.
66 -nomove No point relocation
67 -noinsert No point insertion/deletion.
68 -nosurf No surface modifications.
69 4. Additional parameters depending on compilation flags:
71 -lag ⟨n⟩ Lagrangian mesh displacement according to
72 mode 0 ( n=0 ), 1 ( n=1 ) or 2 ( n=2 ). This
73 option is only available with the
74 USE_SUSCELAS compilation flag. This flag
75 need to find the SUscElas library to remain
76 activated.
77 -octree ⟨n⟩ Specify the maximal number of point per
78 octree cell (only available without the
79 PATTERN compilation flag).
80 -rn ⟨n⟩ Turn on ( n=1 ) or off ( n=0 ) the renumber‐
81 ing using the SCOTCH library (only available
82 with the USE_SCOTCH compilation flag).
83
85 mmg3d returns:
86 · the 0 value if successful;
87 · the 1 value if the process fail but can save a conform mesh;
88 · the 2 value if the process fail and can't save a comform mesh.
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91 mmgs(1) mmg2d(1)
92mmg3d May 04, 2015 mmg3d