1MMG2D(1) BSD General Commands Manual MMG2D(1)
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4 mmg2d — Adaptation and optimization of bidimensional meshes
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7 mmg2d ⟨mesh_file⟩ [output_file] [-sol ⟨solution_file⟩]
8 [-met ⟨metric_file⟩] [-h] [-v] [-m ⟨n⟩] [-d] [-val] [-default] [-A]
9 [-ar ⟨x⟩ | -nr] [-hmin ⟨x⟩] [-hmax ⟨x⟩] [-hsiz ⟨x⟩] [-hausd ⟨x⟩]
10 [-hgrad ⟨x⟩] [-hgradreq ⟨x⟩] [-rmc x] [-lag ⟨n⟩] [-ls x]
11 [-lssurf x] [-noinsert] [-nomove] [-noswap] [-nosurf] [-nosizreq]
12 [-nreg] [-xreg] [-nsd ⟨n⟩] [-opnbdy] [-optim] [-3dMedit ⟨n⟩]
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15 The mmg2d application is dedicated to bidimensional triangular mesh
16 remeshing.
17 By default it performs mesh modifications in order to control the surface
19 approximation.
20 Providing a metric file, it adapts the mesh to the prescribed sizes at
21 nodes.
22 Without metric file, the -optim option allows to improve the mesh quality
23 with respect to the initial mesh size.
24 Providing a level-set file containing the values of the level-set func‐
25 tion at the mesh nodes, the -ls option allows to explicitely mesh an im‐
26 plicit domain and the -lssurf option splits mesh boundaries on a provided
27 isovalue.
28 Providing a displacement file -lag option applies a lagrangian displace‐
29 ment to boundary mesh nodes.
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33 1. Generic options:
34 -h Print help.
35 -v ⟨n⟩ Tune level of verbosity.
36 Takes values between -1 and 10.
37 -m ⟨n⟩ Set maximal memory size to n MBytes.
38 -d Turn on debug mode.
39 -default Write a local parameter file (with extension
40 .mmg2d) with setted values.
41 -val Print the default parameters values.
42 2. File specifications:
44 -in ⟨mesh_file⟩ Input triangulation.
45 -out ⟨output_file⟩ Output triangulation.
46 -sol ⟨solution_file⟩ Load metric, level-set or displacement file.
47 -met ⟨metric_file⟩ Load metric file in level-set mode.
48 3. Mode specifications (default is mesh adaptation):
50 -lag ⟨n⟩ Lagrangian mesh displacement according to
51 mode 0 ( n=0 ), 1 ( n=1 ) or 2 ( n=2 ). This
52 option is only available with the USE_ELAS
53 compilation flag. The LinearElasticity li‐
54 brary must be founded to activate this flag.
55 -ls x Create mesh of isovalue x (0.0 if x is not
56 provided).
57 -lssurf x Split boundary mesh on isovalue x (0.0 if x
58 is not provided).
59 4. Parameters:
61 -A Enable anisotropy (without metric file).
62 -ar ⟨x⟩ | -nr Threshold for angle detection or sharp fea‐
63 tures detection disabling.
64 -hmin ⟨x⟩ Minimal mesh size.
65 -hmax ⟨x⟩ Maximal mesh size.
66 -hsiz ⟨x⟩ Constant mesh size.
67 -hausd ⟨x⟩ Control the Hausdorff distance to the under‐
68 lying surface geometry.
69 -hgrad ⟨x⟩ Control the gradation.
70 -hgradreq ⟨x⟩ Control the gradation from required entities
71 toward others.
72 -rmc x Remove componants whose volumic fraction is
73 less than x (1.e-5 if x is not provided) of
74 the whole mesh volume or not connected to
75 base references provided in parameter file
76 (level-set mode).
77 -opnbdy Preserve input edges at the interface of two
78 domains of the same reference.
79 -noinsert No point insertion/deletion.
80 -nomove No point relocation
81 -nosurf No surface modifications.
82 -noswap No edge or face flipping.
83 -nosizreq No imposition of the size of required edges
84 over required vertices.
85 -nreg Normal regularization using laplacian - an‐
86 tilaplacian smoothing.
87 -xreg Vertex coordinates regularization using
88 laplacian - antilaplacian smoothing.
89 -nsd ⟨n⟩ Save the subdomain of index n (default is
90 n=0 which save all subdomains).
91 -optim Mesh improvement with respect to the initial
92 mesh size.
93 -3dMedit ⟨n⟩ Write and/or read Medit mesh file in 3D. If
94 val=1 write the 2D mesh in 3D. If val=2 read
95 and write 2D mesh in 3D. If val=3 read a 2D
96 mesh in 3D and write it in 2D.
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99 mmg2d returns:
100 • the 0 value if successful;
101 • the 1 value if the process fail but can save a conform mesh;
102 • the 2 value if the process fail and can't save a comform mesh.
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105 mmg3d(1) mmgs(1)
106mmg2d May 04, 2015 mmg2d