Stellarmesh is a meshing library for nuclear workflows. Principally, it supports the creation of DAGMC geometry from CAD models.
Features:
✅ Surface and volume meshing
✅ Gmsh and OpenCASCADE meshing backends
✅ Linear and angular mesh tolerances
✅ Surface boundary conditions
✅ Imprinting and merging of conformal geometry
✅ Mesh refinement
✅ Programmatic manipulation of .h5m tags
✅ Automated testing and integration
Getting Started
Example
import build123d as bd
import stellarmesh as sm
solids = [bd.Solid.make_torus(1000, 100)]
for _ in range(3):
solids.append(bd.Solid.thicken(solids[-1].faces()[0], 100))
solids = solids[1:]
geometry = sm.Geometry(solids[::-1], material_names=["a", "a", "c"])
mesh = sm.SurfaceMesh.from_geometry(
geometry, sm.GmshSurfaceOptions(min_mesh_size=50, max_mesh_size=200)
)
mesh.write("test.msh")
mesh.render("docs/torus-mesh-reversed.png", rotation_xyz=(90, 0, -90), normals=15)
h5m = sm.DAGMCModel.from_mesh(mesh)
h5m.write("dagmc.h5m")
h5m.write("dagmc.vtk")
Acknowledgements
Stellarmesh is originally a project of Thea Energy, who are building the world’s first planar coil stellarator.
Metadata
Release files for stellarmesh 2.0.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| stellarmesh-2.0.1.tar.gz | 142.9 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| stellarmesh-2.0.1-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 163.5 kB
Release files / stellarmesh-2.0.1.tar.gz
| Download URL | stellarmesh-2.0.1.tar.gz |
|---|---|
| Size | 142.9 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
b30566b58bdd14ef12530622dc77999b0e3bd9a75f17224a6bd5372f6c847aa4
|
|
BLAKE2b-256 checksum How to use checksums |
2fd9ed149ae9d3f723760e5b07f3ce9dfaadfa302c87662fbd054da27dd3aa83
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Feb 24, 2026.
Transparency logRelease files / stellarmesh-2.0.1-py3-none-any.whl
| Download URL | stellarmesh-2.0.1-py3-none-any.whl |
|---|---|
| Size | 20.6 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
3f6df8686a4006cc03a1f340193cacdd7b816bdb5f18cfe852464b4cd6d04831
|
|
BLAKE2b-256 checksum How to use checksums |
da8dd769579c4dfffd7626eac1d1b7def0c2ab30983ae82701257fa3fd81c8f7
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Feb 24, 2026.
Transparency log