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mmgpy

Python bindings for the MMG remeshing library.

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Features
3D Volume Meshing Tetrahedral remeshing
2D Meshing Triangular remeshing for planar domains
Surface Meshing 3D surface remeshing and optimization
Local Sizing Sphere, box, cylinder, and point-based refinement
Anisotropic Metrics Custom metric tensors for directional adaptation
Level-Set Extract isosurfaces from implicit functions
Lagrangian Motion Remesh while preserving displacement fields
PyVista Integration Seamless conversion for visualization
40+ File Formats VTK, STL, OBJ natively; GMSH and more via pyvista[io]

Quick Start

import pyvista as pv
import mmgpy  # noqa: F401  -- registers the Medit reader/writer + .mmg accessor

# Load a mesh from any supported format (mmgpy registers a Medit plugin)
mesh = pv.read("input.mesh")

# Remesh with target edge size (returns a fresh dataset)
remeshed = mesh.mmg.remesh(hmax=0.1)

# Save the result
remeshed.save("output.vtk")

Installation

pip install mmgpy

uv pip install mmgpy
# or: uv add mmgpy (project dependency)
# or: uv tool install mmgpy (mmg2d_O3, mmg3d_O3, mmgs_O3 globally)

Mechanical piece remeshing Surface remeshing of a mechanical part

Smooth surface remeshing Smooth surface mesh optimization

3D mesh quality improvement 3D volumetric mesh quality improvement

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