MMG C API Binding Coverage¶

This document tracks every public function in the MMG C library and whether it has a corresponding Python binding in mmgpy. Functions are sourced from the official MMG headers (libmmg2d.h, libmmg3d.h, libmmgs.h).

Coverage Summary¶

Library	Total	Bound	Indirect	Not Bound	Functional Coverage
MMG3D	142	60	26	56	61%
MMG2D	119	51	15	53	55%
MMGS	110	49	12	49	55%

Functional coverage = (Bound + Indirect) / Total. "Indirect" means the functionality is available in the Python API through an alternative implementation (e.g. direct struct access or reimplementation).

Many "not bound" functions fall into categories that are intentionally excluded:

Bulk variants: Individual element setters/getters are used in loops instead of bulk C functions, or bulk getters access internal structures directly. The Python API still exposes bulk operations (e.g. set_vertices(), get_triangles()).
Format-specific I/O: mmgpy uses loadMesh/saveMesh (Medit format) at the C level; other formats (VTK, Gmsh, etc.) are handled at the Python level via PyVista.
Internal/implicit: Functions called internally by other bound functions (e.g. Init_fileNames is called by Init_mesh).
CLI utilities: Command-line parsing and help functions irrelevant to a Python library.
Granular memory management: Free_all is used instead of individual free functions.

Status Legend¶

Status	Meaning
Bound	C function is directly called in the pybind11 bindings
Indirect	Functionality is available via alternative implementation (direct struct access, reimplementation, or loop over individual calls)
Not bound	Functionality is not exposed to Python

MMG3D (3D Volumetric Mesh)¶

Initialization & Memory Management¶

Function	Status	Notes
`MMG3D_Init_mesh`	Bound	`MmgMesh3D()` constructor; `mmg3d.remesh()`
`MMG3D_Init_fileNames`	Not bound	Called internally by `Init_mesh`
`MMG3D_Init_parameters`	Not bound	Called internally by `Init_mesh`
`MMG3D_Free_all`	Bound	Called in `MmgMesh3D` destructor and `mmg3d.remesh()`
`MMG3D_Free_structures`	Not bound	`Free_all` used instead
`MMG3D_Free_names`	Not bound	`Free_all` used instead
`MMG3D_Free_allSols`	Not bound	`Free_all` used instead
`MMG3D_Free_solutions`	Not bound	`Free_all` used instead

Mesh Size & Validation¶

Function	Status	Notes
`MMG3D_Set_meshSize`	Bound	`MmgMesh3D.set_mesh_size()`
`MMG3D_Get_meshSize`	Bound	`MmgMesh3D.get_mesh_size()`
`MMG3D_Chk_meshData`	Not bound	Called internally by MMG before remeshing
`MMG3D_Set_constantSize`	Not bound	Could be useful; use `hsiz` parameter as alternative

Vertex Operations¶

Function	Status	Notes
`MMG3D_Set_vertex`	Bound	`MmgMesh3D.set_vertex()` and loops in `set_vertices()`
`MMG3D_Set_vertices`	Indirect	`set_vertices()` loops over `Set_vertex` instead
`MMG3D_Get_vertex`	Bound	`MmgMesh3D.get_vertex()` (by iteration index)
`MMG3D_GetByIdx_vertex`	Bound	Used in `get_vertex()` (by absolute index)
`MMG3D_Get_vertices`	Indirect	`get_vertices()` accesses struct directly
`MMG3D_Add_vertex`	Not bound	Dynamic vertex addition; could be useful for mesh construction
`MMG3D_Set_normalAtVertex`	Bound	`MmgMesh3D.set_normal_at_vertices()`
`MMG3D_Get_normalAtVertex`	Bound	`MmgMesh3D.get_normal_at_vertices()`

Tetrahedron Operations¶

Function	Status	Notes
`MMG3D_Set_tetrahedron`	Bound	`MmgMesh3D.set_tetrahedron()` and loops in `set_tetrahedra()`
`MMG3D_Set_tetrahedra`	Indirect	`set_tetrahedra()` loops over `Set_tetrahedron` instead
`MMG3D_Get_tetrahedron`	Bound	`MmgMesh3D.get_tetrahedron()`
`MMG3D_Get_tetrahedra`	Indirect	`get_tetrahedra()` accesses struct directly
`MMG3D_Get_tetrahedronQuality`	Bound	`MmgMesh3D.get_element_quality()` / `get_element_qualities()`
`MMG3D_Add_tetrahedron`	Not bound	Dynamic element addition; could be useful for mesh construction

Triangle Operations¶

Function	Status	Notes
`MMG3D_Set_triangle`	Bound	`MmgMesh3D.set_triangle()` and loops in `set_triangles()`
`MMG3D_Set_triangles`	Indirect	`set_triangles()` loops over `Set_triangle` instead
`MMG3D_Get_triangle`	Bound	`MmgMesh3D.get_triangle()`
`MMG3D_Get_triangles`	Indirect	`get_triangles()` accesses struct directly

Prism Operations¶

Function	Status	Notes
`MMG3D_Set_prism`	Bound	`MmgMesh3D.set_prism()` and loops in `set_prisms()`
`MMG3D_Set_prisms`	Indirect	`set_prisms()` loops over `Set_prism` instead
`MMG3D_Get_prism`	Indirect	`get_prism()` / `get_prisms()` access struct directly
`MMG3D_Get_prisms`	Indirect	`get_prisms()` accesses struct directly

Quadrilateral Operations¶

Function	Status	Notes
`MMG3D_Set_quadrilateral`	Bound	`MmgMesh3D.set_quadrilateral()` and loops in `set_quadrilaterals()`
`MMG3D_Set_quadrilaterals`	Indirect	`set_quadrilaterals()` loops over `Set_quadrilateral` instead
`MMG3D_Get_quadrilateral`	Indirect	`get_quadrilateral()` / `get_quadrilaterals()` access struct directly
`MMG3D_Get_quadrilaterals`	Indirect	`get_quadrilaterals()` accesses struct directly

Edge Operations¶

Function	Status	Notes
`MMG3D_Set_edge`	Bound	`MmgMesh3D.set_edge()` and loops in `set_edges()`
`MMG3D_Set_edges`	Indirect	`set_edges()` loops over `Set_edge` instead
`MMG3D_Get_edge`	Bound	`MmgMesh3D.get_edge()`
`MMG3D_Get_edges`	Indirect	`get_edges()` accesses struct directly

Element Attributes¶

Function	Status	Notes
`MMG3D_Set_corner`	Bound	Used in `MmgMesh3D.set_corners()`
`MMG3D_Unset_corner`	Bound	Used in `MmgMesh3D.unset_corners()`
`MMG3D_Set_requiredVertex`	Bound	Used in `MmgMesh3D.set_required_vertices()`
`MMG3D_Unset_requiredVertex`	Bound	Used in `MmgMesh3D.unset_required_vertices()`
`MMG3D_Set_requiredTetrahedron`	Bound	Used in `MmgMesh3D.set_required_tetrahedra()`
`MMG3D_Unset_requiredTetrahedron`	Bound	Used in `MmgMesh3D.unset_required_tetrahedra()`
`MMG3D_Set_requiredTetrahedra`	Indirect	Loops over `Set_requiredTetrahedron` instead
`MMG3D_Unset_requiredTetrahedra`	Indirect	Loops over `Unset_requiredTetrahedron` instead
`MMG3D_Set_requiredTriangle`	Bound	Used in `MmgMesh3D.set_required_triangles()`
`MMG3D_Unset_requiredTriangle`	Bound	Used in `MmgMesh3D.unset_required_triangles()`
`MMG3D_Set_requiredTriangles`	Indirect	Loops over `Set_requiredTriangle` instead
`MMG3D_Unset_requiredTriangles`	Indirect	Loops over `Unset_requiredTriangle` instead
`MMG3D_Set_requiredEdge`	Bound	Used in `MmgMesh3D.set_required_edges()`
`MMG3D_Unset_requiredEdge`	Bound	Used in `MmgMesh3D.unset_required_edges()`
`MMG3D_Set_ridge`	Bound	Used in `MmgMesh3D.set_ridge_edges()`
`MMG3D_Unset_ridge`	Bound	Used in `MmgMesh3D.unset_ridge_edges()`
`MMG3D_Set_parallelTriangle`	Bound	Used in `MmgMesh3D.set_parallel_triangles()`
`MMG3D_Unset_parallelTriangle`	Bound	Used in `MmgMesh3D.unset_parallel_triangles()`
`MMG3D_Set_parallelTriangles`	Indirect	Loops over `Set_parallelTriangle` instead
`MMG3D_Unset_parallelTriangles`	Indirect	Loops over `Unset_parallelTriangle` instead

Solution / Metric Fields¶

Function	Status	Notes
`MMG3D_Set_solSize`	Bound	Called internally when setting fields via `set_field()`
`MMG3D_Get_solSize`	Not bound	Could be useful for querying solution state
`MMG3D_Set_scalarSol`	Indirect	`Set_scalarSols` (bulk) used instead
`MMG3D_Set_scalarSols`	Bound	Used in `set_field("metric")` / `set_field("levelset")`
`MMG3D_Get_scalarSol`	Indirect	`Get_scalarSols` (bulk) used instead
`MMG3D_Get_scalarSols`	Bound	Used in `get_field("metric")` / `get_field("levelset")`
`MMG3D_Set_vectorSol`	Indirect	`Set_vectorSols` (bulk) used instead
`MMG3D_Set_vectorSols`	Bound	Used in `set_field("displacement")`
`MMG3D_Get_vectorSol`	Indirect	`Get_vectorSols` (bulk) used instead
`MMG3D_Get_vectorSols`	Bound	Used in `get_field("displacement")`
`MMG3D_Set_tensorSol`	Indirect	`Set_tensorSols` (bulk) used instead
`MMG3D_Set_tensorSols`	Bound	Used in `set_field("tensor")`
`MMG3D_Get_tensorSol`	Indirect	`Get_tensorSols` (bulk) used instead
`MMG3D_Get_tensorSols`	Bound	Used in `get_field("tensor")`

Multi-Solution Support¶

Function	Status	Notes
`MMG3D_Set_solsAtVerticesSize`	Not bound	Needed for multiple solution fields per vertex
`MMG3D_Get_solsAtVerticesSize`	Not bound	Query multi-solution dimensions
`MMG3D_Set_ithSol_inSolsAtVertices`	Not bound	Set individual values in multi-solution
`MMG3D_Set_ithSols_inSolsAtVertices`	Not bound	Set bulk values in multi-solution
`MMG3D_Get_ithSol_inSolsAtVertices`	Not bound	Get individual values from multi-solution
`MMG3D_Get_ithSols_inSolsAtVertices`	Not bound	Get bulk values from multi-solution

Parameters¶

Function	Status	Notes
`MMG3D_Set_iparameter`	Bound	Used in `remesh()` for integer options
`MMG3D_Set_dparameter`	Bound	Used in `remesh()` for float options (hmin, hmax, etc.)
`MMG3D_Get_iparameter`	Not bound	Reading back parameter values; could be useful
`MMG3D_Set_localParameter`	Bound	`MmgMesh3D.set_local_parameters()`
`MMG3D_Set_multiMat`	Bound	`MmgMesh3D.set_multi_materials()`
`MMG3D_Set_lsBaseReference`	Bound	`MmgMesh3D.set_ls_base_references()`
`MMG3D_Set_handGivenMesh`	Not bound	Tells MMG the mesh was built programmatically; could be useful
`MMG3D_switch_metricStorage`	Not bound	Advanced metric storage control

I/O Configuration¶

Function	Status	Notes
`MMG3D_Set_inputMeshName`	Bound	Used in `mmg3d.remesh()` file-based API
`MMG3D_Set_outputMeshName`	Bound	Used in `mmg3d.remesh()` file-based API
`MMG3D_Set_inputSolName`	Bound	Used in `mmg3d.remesh()` file-based API
`MMG3D_Set_outputSolName`	Bound	Used in `mmg3d.remesh()` file-based API
`MMG3D_Set_inputParamName`	Not bound	For MMG `.mmg3d` parameter files; not commonly needed

File I/O¶

Function	Status	Notes
`MMG3D_loadMesh`	Bound	Used in `mmg3d.remesh()` and `MmgMesh3D(filename)`
`MMG3D_saveMesh`	Bound	Used in `mmg3d.remesh()` and `MmgMesh3D.save()`
`MMG3D_loadSol`	Bound	Used in `mmg3d.remesh()` and `MmgMesh3D.load_sol()`
`MMG3D_saveSol`	Bound	Used in `mmg3d.remesh()` and `MmgMesh3D.save_sol()`
`MMG3D_loadGenericMesh`	Not bound	Auto-detect format; `loadMesh` used + PyVista for other formats
`MMG3D_saveGenericMesh`	Not bound	Auto-detect format; `saveMesh` used + PyVista for other formats
`MMG3D_loadMshMesh`	Not bound	Gmsh format; handled by PyVista instead
`MMG3D_loadMshMesh_and_allData`	Not bound	Gmsh format with all data
`MMG3D_saveMshMesh`	Not bound	Gmsh format output
`MMG3D_saveMshMesh_and_allData`	Not bound	Gmsh format with all data
`MMG3D_loadVtkMesh`	Not bound	VTK format; handled by PyVista instead
`MMG3D_loadVtkMesh_and_allData`	Not bound	VTK format with all data
`MMG3D_saveVtkMesh`	Not bound	VTK format output
`MMG3D_saveVtkMesh_and_allData`	Not bound	VTK format with all data
`MMG3D_loadVtuMesh`	Not bound	VTU format; handled by PyVista instead
`MMG3D_loadVtuMesh_and_allData`	Not bound	VTU format with all data
`MMG3D_saveVtuMesh`	Not bound	VTU format output
`MMG3D_saveVtuMesh_and_allData`	Not bound	VTU format with all data
`MMG3D_loadAllSols`	Not bound	Multi-solution file loading
`MMG3D_saveAllSols`	Not bound	Multi-solution file saving
`MMG3D_saveTetgenMesh`	Not bound	TetGen format output

Topology Queries¶

Function	Status	Notes
`MMG3D_Get_adjaTet`	Bound	`MmgMesh3D.get_adjacent_elements()`
`MMG3D_Get_tetFromTria`	Bound	`MmgMesh3D.get_tet_from_tria()`
`MMG3D_Get_tetsFromTria`	Bound	`MmgMesh3D.get_tets_from_tria()`
`MMG3D_Get_numberOfNonBdyTriangles`	Bound	Used in `get_non_boundary_triangles()`
`MMG3D_Get_nonBdyTriangle`	Bound	Used in `get_non_boundary_triangles()`

Remeshing Functions¶

Function	Status	Notes
`MMG3D_mmg3dlib`	Bound	`MmgMesh3D.remesh()` (standard remeshing)
`MMG3D_mmg3dls`	Bound	`MmgMesh3D.remesh_levelset()`
`MMG3D_mmg3dmov`	Skipped	Requires the ELAS dependency; mmgpy ships `mmgpy.move_mesh` (Laplacian / fedoo) instead

CLI & Internal Utilities¶

Function	Status	Notes
`MMG3D_defaultValues`	Not bound	Prints default values to stdout; CLI utility
`MMG3D_parsar`	Not bound	Command-line argument parser; not relevant for Python
`MMG3D_parsop`	Not bound	Parameter file parser; not relevant for Python
`MMG3D_usage`	Not bound	Prints usage text; CLI utility
`MMG3D_Set_commonFunc`	Not bound	Internal MMG function pointer setup
`MMG3D_setfunc`	Not bound	Internal function pointer initialization
`MMG3D_stockOptions`	Not bound	Internal: saves options to mesh structure
`MMG3D_destockOptions`	Not bound	Internal: restores options from mesh structure
`MMG3D_Compute_eigenv`	Not bound	Eigenvalue utility; rarely needed from Python
`MMG3D_Clean_isoSurf`	Not bound	Internal cleanup after level-set discretization
`MMG3D_hashTetra`	Not bound	Internal hash table construction
`MMG3D_searchqua`	Not bound	Internal: search for worst quality elements
`MMG3D_searchlen`	Not bound	Internal: search for worst edge lengths
`MMG3D_mmg3dcheck`	Not bound	Internal mesh consistency check

Function Pointers¶

Function	Status	Notes
`MMG3D_doSol`	Not bound	External function pointer for custom solution computation; advanced C-level callback
`MMG3D_lenedgCoor`	Not bound	External function pointer for custom edge length computation; advanced C-level callback

MMG2D (2D Planar Mesh)¶

Initialization & Memory Management¶

Function	Status	Notes
`MMG2D_Init_mesh`	Bound	`MmgMesh2D()` constructor; `mmg2d.remesh()`
`MMG2D_Init_fileNames`	Not bound	Called internally by `Init_mesh`
`MMG2D_Init_parameters`	Not bound	Called internally by `Init_mesh`
`MMG2D_Free_all`	Bound	Called in `MmgMesh2D` destructor and `mmg2d.remesh()`
`MMG2D_Free_structures`	Not bound	`Free_all` used instead
`MMG2D_Free_names`	Not bound	`Free_all` used instead
`MMG2D_Free_allSols`	Not bound	`Free_all` used instead
`MMG2D_Free_solutions`	Not bound	`Free_all` used instead
`MMG2D_Free_triangles`	Not bound	`Free_all` used instead
`MMG2D_Free_edges`	Not bound	`Free_all` used instead

Mesh Size & Validation¶

Function	Status	Notes
`MMG2D_Set_meshSize`	Bound	`MmgMesh2D.set_mesh_size()`
`MMG2D_Get_meshSize`	Bound	`MmgMesh2D.get_mesh_size()`
`MMG2D_Chk_meshData`	Not bound	Called internally by MMG before remeshing
`MMG2D_Set_constantSize`	Not bound	Could be useful; use `hsiz` parameter as alternative

Vertex Operations¶

Function	Status	Notes
`MMG2D_Set_vertex`	Bound	`MmgMesh2D.set_vertex()` and loops in `set_vertices()`
`MMG2D_Set_vertices`	Indirect	`set_vertices()` loops over `Set_vertex` instead
`MMG2D_Get_vertex`	Bound	`MmgMesh2D.get_vertex()` (by iteration index)
`MMG2D_GetByIdx_vertex`	Bound	Used in `get_vertex()` (by absolute index)
`MMG2D_Get_vertices`	Indirect	`get_vertices()` accesses struct directly
`MMG2D_Reset_verticestags`	Not bound	Resets all vertex tags; niche use case

Triangle Operations¶

Function	Status	Notes
`MMG2D_Set_triangle`	Bound	`MmgMesh2D.set_triangle()` and loops in `set_triangles()`
`MMG2D_Set_triangles`	Indirect	`set_triangles()` loops over `Set_triangle` instead
`MMG2D_Get_triangle`	Bound	`MmgMesh2D.get_triangle()`
`MMG2D_Get_triangles`	Indirect	`get_triangles()` accesses struct directly
`MMG2D_Get_triangleQuality`	Bound	`MmgMesh2D.get_element_quality()` / `get_element_qualities()`

Quadrilateral Operations¶

Function	Status	Notes
`MMG2D_Set_quadrilateral`	Bound	`MmgMesh2D.set_quadrilateral()` and loops in `set_quadrilaterals()`
`MMG2D_Set_quadrilaterals`	Indirect	`set_quadrilaterals()` loops over `Set_quadrilateral` instead
`MMG2D_Get_quadrilateral`	Indirect	`get_quadrilateral()` accesses struct directly
`MMG2D_Get_quadrilaterals`	Indirect	`get_quadrilaterals()` accesses struct directly

Edge Operations¶

Function	Status	Notes
`MMG2D_Set_edge`	Bound	`MmgMesh2D.set_edge()` and loops in `set_edges()`
`MMG2D_Set_edges`	Indirect	`set_edges()` loops over `Set_edge` instead
`MMG2D_Get_edge`	Bound	`MmgMesh2D.get_edge()`
`MMG2D_Get_edges`	Indirect	`get_edges()` accesses struct directly

Element Attributes¶

Function	Status	Notes
`MMG2D_Set_corner`	Bound	Used in `MmgMesh2D.set_corners()`
`MMG2D_Unset_corner`	Bound	Used in `MmgMesh2D.unset_corners()`
`MMG2D_Set_requiredVertex`	Bound	Used in `MmgMesh2D.set_required_vertices()`
`MMG2D_Unset_requiredVertex`	Bound	Used in `MmgMesh2D.unset_required_vertices()`
`MMG2D_Set_requiredTriangle`	Bound	Used in `MmgMesh2D.set_required_triangles()`
`MMG2D_Unset_requiredTriangle`	Bound	Used in `MmgMesh2D.unset_required_triangles()`
`MMG2D_Set_requiredEdge`	Bound	Used in `MmgMesh2D.set_required_edges()`
`MMG2D_Unset_requiredEdge`	Bound	Used in `MmgMesh2D.unset_required_edges()`
`MMG2D_Set_parallelEdge`	Bound	Used in `MmgMesh2D.set_parallel_edges()`

Solution / Metric Fields¶

Function	Status	Notes
`MMG2D_Set_solSize`	Bound	Called internally when setting fields via `set_field()`
`MMG2D_Get_solSize`	Not bound	Could be useful for querying solution state
`MMG2D_Set_scalarSol`	Indirect	`Set_scalarSols` (bulk) used instead
`MMG2D_Set_scalarSols`	Bound	Used in `set_field("metric")` / `set_field("levelset")`
`MMG2D_Get_scalarSol`	Indirect	`Get_scalarSols` (bulk) used instead
`MMG2D_Get_scalarSols`	Bound	Used in `get_field("metric")` / `get_field("levelset")`
`MMG2D_Set_vectorSol`	Indirect	`Set_vectorSols` (bulk) used instead
`MMG2D_Set_vectorSols`	Bound	Used in `set_field("displacement")`
`MMG2D_Get_vectorSol`	Indirect	`Get_vectorSols` (bulk) used instead
`MMG2D_Get_vectorSols`	Bound	Used in `get_field("displacement")`
`MMG2D_Set_tensorSol`	Indirect	`Set_tensorSols` (bulk) used instead
`MMG2D_Set_tensorSols`	Bound	Used in `set_field("tensor")`
`MMG2D_Get_tensorSol`	Indirect	`Get_tensorSols` (bulk) used instead
`MMG2D_Get_tensorSols`	Bound	Used in `get_field("tensor")`

Multi-Solution Support¶

Function	Status	Notes
`MMG2D_Set_solsAtVerticesSize`	Not bound	Needed for multiple solution fields per vertex
`MMG2D_Get_solsAtVerticesSize`	Not bound	Query multi-solution dimensions
`MMG2D_Set_ithSol_inSolsAtVertices`	Not bound	Set individual values in multi-solution
`MMG2D_Set_ithSols_inSolsAtVertices`	Not bound	Set bulk values in multi-solution
`MMG2D_Get_ithSol_inSolsAtVertices`	Not bound	Get individual values from multi-solution
`MMG2D_Get_ithSols_inSolsAtVertices`	Not bound	Get bulk values from multi-solution

Parameters¶

Function	Status	Notes
`MMG2D_Set_iparameter`	Bound	Used in `remesh()` for integer options
`MMG2D_Set_dparameter`	Bound	Used in `remesh()` for float options (hmin, hmax, etc.)
`MMG2D_Set_localParameter`	Bound	`MmgMesh2D.set_local_parameters()`
`MMG2D_Set_multiMat`	Bound	`MmgMesh2D.set_multi_materials()`
`MMG2D_Set_lsBaseReference`	Bound	`MmgMesh2D.set_ls_base_references()`

I/O Configuration¶

Function	Status	Notes
`MMG2D_Set_inputMeshName`	Bound	Used in `mmg2d.remesh()` file-based API
`MMG2D_Set_outputMeshName`	Bound	Used in `mmg2d.remesh()` file-based API
`MMG2D_Set_inputSolName`	Bound	Used in `mmg2d.remesh()` file-based API
`MMG2D_Set_outputSolName`	Bound	Used in `mmg2d.remesh()` file-based API
`MMG2D_Set_inputParamName`	Not bound	For MMG `.mmg2d` parameter files; not commonly needed

File I/O¶

Function	Status	Notes
`MMG2D_loadMesh`	Bound	Used in `mmg2d.remesh()` and `MmgMesh2D(filename)`
`MMG2D_saveMesh`	Bound	Used in `mmg2d.remesh()` and `MmgMesh2D.save()`
`MMG2D_loadSol`	Bound	Used in `mmg2d.remesh()` and `MmgMesh2D.load_sol()`
`MMG2D_saveSol`	Bound	Used in `mmg2d.remesh()` and `MmgMesh2D.save_sol()`
`MMG2D_loadGenericMesh`	Not bound	Auto-detect format; `loadMesh` used + PyVista for other formats
`MMG2D_saveGenericMesh`	Not bound	Auto-detect format; `saveMesh` used + PyVista for other formats
`MMG2D_loadMshMesh`	Not bound	Gmsh format; handled by PyVista instead
`MMG2D_loadMshMesh_and_allData`	Not bound	Gmsh format with all data
`MMG2D_saveMshMesh`	Not bound	Gmsh format output
`MMG2D_saveMshMesh_and_allData`	Not bound	Gmsh format with all data
`MMG2D_loadVtkMesh`	Not bound	VTK format; handled by PyVista instead
`MMG2D_loadVtkMesh_and_allData`	Not bound	VTK format with all data
`MMG2D_saveVtkMesh`	Not bound	VTK format output
`MMG2D_saveVtkMesh_and_allData`	Not bound	VTK format with all data
`MMG2D_loadVtpMesh`	Not bound	VTP format; handled by PyVista instead
`MMG2D_loadVtpMesh_and_allData`	Not bound	VTP format with all data
`MMG2D_saveVtpMesh`	Not bound	VTP format output
`MMG2D_saveVtpMesh_and_allData`	Not bound	VTP format with all data
`MMG2D_loadVtuMesh`	Not bound	VTU format; handled by PyVista instead
`MMG2D_loadVtuMesh_and_allData`	Not bound	VTU format with all data
`MMG2D_saveVtuMesh`	Not bound	VTU format output
`MMG2D_saveVtuMesh_and_allData`	Not bound	VTU format with all data
`MMG2D_loadVect`	Not bound	Vector field loading (legacy)
`MMG2D_saveVect`	Not bound	Vector field saving (legacy)
`MMG2D_loadAllSols`	Not bound	Multi-solution file loading
`MMG2D_saveAllSols`	Not bound	Multi-solution file saving
`MMG2D_saveTetgenMesh`	Not bound	TetGen format output

Topology Queries¶

Function	Status	Notes
`MMG2D_Get_adjaTri`	Bound	`MmgMesh2D.get_adjacent_elements()`
`MMG2D_Get_adjaVertices`	Not bound	Requires adjacency tables that may not be available after remeshing
`MMG2D_Get_adjaVerticesFast`	Not bound	Same limitation as `Get_adjaVertices`
`MMG2D_Get_triFromEdge`	Bound	`MmgMesh2D.get_tri_from_edge()`
`MMG2D_Get_trisFromEdge`	Bound	`MmgMesh2D.get_tris_from_edge()`
`MMG2D_Get_numberOfNonBdyEdges`	Bound	Used in `get_non_boundary_edges()`
`MMG2D_Get_nonBdyEdge`	Bound	Used in `get_non_boundary_edges()`

Remeshing Functions¶

Function	Status	Notes
`MMG2D_mmg2dlib`	Bound	`MmgMesh2D.remesh()` (standard remeshing)
`MMG2D_mmg2dls`	Bound	`MmgMesh2D.remesh_levelset()`
`MMG2D_mmg2dmov`	Skipped	Requires the ELAS dependency; mmgpy ships `mmgpy.move_mesh` (Laplacian / fedoo) instead
`MMG2D_mmg2dmesh`	Bound	Auto-selected by `remesh()` when mesh has no triangles (edge-only mesh generation)

CLI & Internal Utilities¶

Function	Status	Notes
`MMG2D_defaultValues`	Not bound	Prints default values to stdout; CLI utility
`MMG2D_parsar`	Not bound	Command-line argument parser; not relevant for Python
`MMG2D_parsop`	Not bound	Parameter file parser; not relevant for Python
`MMG2D_usage`	Not bound	Prints usage text; CLI utility
`MMG2D_Set_commonFunc`	Not bound	Internal MMG function pointer setup
`MMG2D_setfunc`	Not bound	Internal function pointer initialization
`MMG2D_Compute_eigenv`	Not bound	Eigenvalue utility; rarely needed from Python
`MMG2D_scaleMesh`	Not bound	Internal mesh scaling for numerical stability

Function Pointers¶

Function	Status	Notes
`MMG2D_doSol`	Not bound	External function pointer for custom solution computation; advanced C-level callback

MMGS (Surface Mesh)¶

Initialization & Memory Management¶

Function	Status	Notes
`MMGS_Init_mesh`	Bound	`MmgMeshS()` constructor; `mmgs.remesh()`
`MMGS_Init_fileNames`	Not bound	Called internally by `Init_mesh`
`MMGS_Init_parameters`	Not bound	Called internally by `Init_mesh`
`MMGS_Free_all`	Bound	Called in `MmgMeshS` destructor and `mmgs.remesh()`
`MMGS_Free_structures`	Not bound	`Free_all` used instead
`MMGS_Free_names`	Not bound	`Free_all` used instead
`MMGS_Free_allSols`	Not bound	`Free_all` used instead
`MMGS_Free_solutions`	Not bound	`Free_all` used instead

Mesh Size & Validation¶

Function	Status	Notes
`MMGS_Set_meshSize`	Bound	`MmgMeshS.set_mesh_size()`
`MMGS_Get_meshSize`	Bound	`MmgMeshS.get_mesh_size()`
`MMGS_Chk_meshData`	Not bound	Called internally by MMG before remeshing
`MMGS_Set_constantSize`	Not bound	Could be useful; use `hsiz` parameter as alternative

Vertex Operations¶

Function	Status	Notes
`MMGS_Set_vertex`	Bound	`MmgMeshS.set_vertex()` and loops in `set_vertices()`
`MMGS_Set_vertices`	Indirect	`set_vertices()` loops over `Set_vertex` instead
`MMGS_Get_vertex`	Bound	`MmgMeshS.get_vertex()` (by iteration index)
`MMGS_GetByIdx_vertex`	Bound	Used in `get_vertex()` (by absolute index)
`MMGS_Get_vertices`	Indirect	`get_vertices()` accesses struct directly
`MMGS_Set_normalAtVertex`	Bound	`MmgMeshS.set_normal_at_vertices()`
`MMGS_Get_normalAtVertex`	Bound	`MmgMeshS.get_normal_at_vertices()`

Triangle Operations¶

Function	Status	Notes
`MMGS_Set_triangle`	Bound	`MmgMeshS.set_triangle()` and loops in `set_triangles()`
`MMGS_Set_triangles`	Indirect	`set_triangles()` loops over `Set_triangle` instead
`MMGS_Get_triangle`	Bound	`MmgMeshS.get_triangle()`
`MMGS_Get_triangles`	Indirect	`get_triangles()` accesses struct directly
`MMGS_Get_triangleQuality`	Bound	`MmgMeshS.get_element_quality()` / `get_element_qualities()`. Manual fallback on Windows due to missing DLL export in MMG v5.8.0.

Edge Operations¶

Function	Status	Notes
`MMGS_Set_edge`	Bound	`MmgMeshS.set_edge()` and loops in `set_edges()`
`MMGS_Set_edges`	Indirect	`set_edges()` loops over `Set_edge` instead
`MMGS_Get_edge`	Bound	`MmgMeshS.get_edge()`
`MMGS_Get_edges`	Indirect	`get_edges()` accesses struct directly

Element Attributes¶

Function	Status	Notes
`MMGS_Set_corner`	Bound	Used in `MmgMeshS.set_corners()`
`MMGS_Unset_corner`	Bound	Used in `MmgMeshS.unset_corners()`
`MMGS_Set_requiredVertex`	Bound	Used in `MmgMeshS.set_required_vertices()`
`MMGS_Unset_requiredVertex`	Bound	Used in `MmgMeshS.unset_required_vertices()`
`MMGS_Set_requiredTriangle`	Bound	Used in `MmgMeshS.set_required_triangles()`
`MMGS_Unset_requiredTriangle`	Bound	Used in `MmgMeshS.unset_required_triangles()`
`MMGS_Set_requiredEdge`	Bound	Used in `MmgMeshS.set_required_edges()`
`MMGS_Unset_requiredEdge`	Bound	Used in `MmgMeshS.unset_required_edges()`
`MMGS_Set_ridge`	Bound	Used in `MmgMeshS.set_ridge_edges()`
`MMGS_Unset_ridge`	Bound	Used in `MmgMeshS.unset_ridge_edges()`

Solution / Metric Fields¶

Function	Status	Notes
`MMGS_Set_solSize`	Bound	Called internally when setting fields via `set_field()`
`MMGS_Get_solSize`	Not bound	Could be useful for querying solution state
`MMGS_Set_scalarSol`	Indirect	`Set_scalarSols` (bulk) used instead
`MMGS_Set_scalarSols`	Bound	Used in `set_field("metric")` / `set_field("levelset")`
`MMGS_Get_scalarSol`	Indirect	`Get_scalarSols` (bulk) used instead
`MMGS_Get_scalarSols`	Bound	Used in `get_field("metric")` / `get_field("levelset")`
`MMGS_Set_vectorSol`	Indirect	`Set_vectorSols` (bulk) used instead
`MMGS_Set_vectorSols`	Bound	Used in `set_field("displacement")`
`MMGS_Get_vectorSol`	Indirect	`Get_vectorSols` (bulk) used instead
`MMGS_Get_vectorSols`	Bound	Used in `get_field("displacement")`
`MMGS_Set_tensorSol`	Indirect	`Set_tensorSols` (bulk) used instead
`MMGS_Set_tensorSols`	Bound	Used in `set_field("tensor")`
`MMGS_Get_tensorSol`	Indirect	`Get_tensorSols` (bulk) used instead
`MMGS_Get_tensorSols`	Bound	Used in `get_field("tensor")`

Multi-Solution Support¶

Function	Status	Notes
`MMGS_Set_solsAtVerticesSize`	Not bound	Needed for multiple solution fields per vertex
`MMGS_Get_solsAtVerticesSize`	Not bound	Query multi-solution dimensions
`MMGS_Set_ithSol_inSolsAtVertices`	Not bound	Set individual values in multi-solution
`MMGS_Set_ithSols_inSolsAtVertices`	Not bound	Set bulk values in multi-solution
`MMGS_Get_ithSol_inSolsAtVertices`	Not bound	Get individual values from multi-solution
`MMGS_Get_ithSols_inSolsAtVertices`	Not bound	Get bulk values from multi-solution

Parameters¶

Function	Status	Notes
`MMGS_Set_iparameter`	Bound	Used in `remesh()` for integer options
`MMGS_Set_dparameter`	Bound	Used in `remesh()` for float options (hmin, hmax, etc.)
`MMGS_Get_iparameter`	Not bound	Reading back parameter values; could be useful
`MMGS_Set_localParameter`	Bound	`MmgMeshS.set_local_parameters()`
`MMGS_Set_multiMat`	Bound	`MmgMeshS.set_multi_materials()`
`MMGS_Set_lsBaseReference`	Bound	`MmgMeshS.set_ls_base_references()`

I/O Configuration¶

Function	Status	Notes
`MMGS_Set_inputMeshName`	Bound	Used in `mmgs.remesh()` file-based API
`MMGS_Set_outputMeshName`	Bound	Used in `mmgs.remesh()` file-based API
`MMGS_Set_inputSolName`	Bound	Used in `mmgs.remesh()` file-based API
`MMGS_Set_outputSolName`	Bound	Used in `mmgs.remesh()` file-based API
`MMGS_Set_inputParamName`	Not bound	For MMG `.mmgs` parameter files; not commonly needed

File I/O¶

Function	Status	Notes
`MMGS_loadMesh`	Bound	Used in `mmgs.remesh()` and `MmgMeshS(filename)`
`MMGS_saveMesh`	Bound	Used in `mmgs.remesh()` and `MmgMeshS.save()`
`MMGS_loadSol`	Bound	Used in `mmgs.remesh()` and `MmgMeshS.load_sol()`
`MMGS_saveSol`	Bound	Used in `mmgs.remesh()` and `MmgMeshS.save_sol()`
`MMGS_loadGenericMesh`	Not bound	Auto-detect format; `loadMesh` used + PyVista for other formats
`MMGS_saveGenericMesh`	Not bound	Auto-detect format; `saveMesh` used + PyVista for other formats
`MMGS_loadMshMesh`	Not bound	Gmsh format; handled by PyVista instead
`MMGS_loadMshMesh_and_allData`	Not bound	Gmsh format with all data
`MMGS_saveMshMesh`	Not bound	Gmsh format output
`MMGS_saveMshMesh_and_allData`	Not bound	Gmsh format with all data
`MMGS_loadVtkMesh`	Not bound	VTK format; handled by PyVista instead
`MMGS_loadVtkMesh_and_allData`	Not bound	VTK format with all data
`MMGS_saveVtkMesh`	Not bound	VTK format output
`MMGS_saveVtkMesh_and_allData`	Not bound	VTK format with all data
`MMGS_loadVtpMesh`	Not bound	VTP format; handled by PyVista instead
`MMGS_loadVtpMesh_and_allData`	Not bound	VTP format with all data
`MMGS_saveVtpMesh`	Not bound	VTP format output
`MMGS_saveVtpMesh_and_allData`	Not bound	VTP format with all data
`MMGS_loadVtuMesh`	Not bound	VTU format; handled by PyVista instead
`MMGS_loadVtuMesh_and_allData`	Not bound	VTU format with all data
`MMGS_saveVtuMesh`	Not bound	VTU format output
`MMGS_saveVtuMesh_and_allData`	Not bound	VTU format with all data
`MMGS_loadAllSols`	Not bound	Multi-solution file loading
`MMGS_saveAllSols`	Not bound	Multi-solution file saving

Topology Queries¶

Function	Status	Notes
`MMGS_Get_adjaTri`	Bound	`MmgMeshS.get_adjacent_elements()`
`MMGS_Get_adjaVerticesFast`	Not bound	Requires adjacency tables that may not be available after remeshing
`MMGS_Get_numberOfNonBdyEdges`	Bound	Used in `get_non_boundary_edges()`
`MMGS_Get_nonBdyEdge`	Bound	Used in `get_non_boundary_edges()`

Remeshing Functions¶

Function	Status	Notes
`MMGS_mmgslib`	Bound	`MmgMeshS.remesh()` (standard surface remeshing)
`MMGS_mmgsls`	Bound	`MmgMeshS.remesh_levelset()`

CLI & Internal Utilities¶

Function	Status	Notes
`MMGS_defaultValues`	Not bound	Prints default values to stdout; CLI utility
`MMGS_parsar`	Not bound	Command-line argument parser; not relevant for Python
`MMGS_usage`	Not bound	Prints usage text; CLI utility
`MMGS_Set_commonFunc`	Not bound	Internal MMG function pointer setup
`MMGS_setfunc`	Not bound	Internal function pointer initialization
`MMGS_stockOptions`	Not bound	Internal: saves options to mesh structure
`MMGS_destockOptions`	Not bound	Internal: restores options from mesh structure
`MMGS_Compute_eigenv`	Not bound	Eigenvalue utility; rarely needed from Python
`MMGS_Clean_isoSurf`	Not bound	Internal cleanup after level-set discretization

Function Pointers¶

Function	Status	Notes
`MMGS_doSol`	Not bound	External function pointer for custom solution computation; advanced C-level callback

Potential Future Additions¶

Functions that could provide value if bound:

Function Pattern	Libraries	Rationale
`*_Get_iparameter`	MMG3D, MMGS	Read back integer parameter values for debugging/introspection
`*_Get_solSize`	All	Query solution field dimensions
`_Set_solsAtVerticesSize` / `_ithSol`	All	Multi-solution support for advanced workflows (e.g. multiple metric fields)
`_loadAllSols` / `_saveAllSols`	All	File I/O for multi-solution data
`*_Set_constantSize`	All	Shortcut for uniform mesh sizing
`_Get_adjaVertices`	MMG2D, MMGS	Vertex adjacency queries (requires adjacency table availability)
`MMG3D_Add_vertex` / `MMG3D_Add_tetrahedron`	MMG3D	Dynamic mesh construction without pre-allocating size
`MMG3D_Set_handGivenMesh`	MMG3D	Optimization hint for programmatically built meshes

| *_loadGenericMesh / *_saveGenericMesh | All | Auto-detect format (currently handled by PyVista) |