Outie
Turns every face of a mesh to point out, like an outie, even when the mesh is not closed.
A Python port of libigl's reorient_facets_raycast, the reference code for Takayama, Jacobson, Kavan and
Sorkine-Hornung, A Simple Method for Correcting Facet Orientations in Polygon Meshes Based on Ray Casting, 2014.
How
Faces that share edges are gathered into patches first, so a patch is decided as one. Rays are traced by Embree, through trimesh.
Use
import outie
flip, patch = outie.reorient_facets_raycast(vertices, faces) # vertices n by 3, faces m by 3 triangles
faces[flip] = faces[flip][:, ::-1] # turn the ones that pointed in
libigl's function, with its name, arguments and outputs: per triangle, whether to turn it, and the patch it belongs
to. Its settings are keyword arguments with libigl's defaults: rays_total, rays_minimum, facet_wise,
use_parity, and seed so a run repeats.
One addition: occluders, triangles as corners, k by 3 by 3, that rays can hit but that are never turned: the ground a
model stands on, or the things around it. A model with no floor is otherwise as open below as above. The ground belongs
exactly at the model's lowest point, not below it.
Outie takes triangles, as the paper does. Cutting polygons into triangles, mending rings that cross themselves, and deciding a polygon from its triangles are the caller's.
Licence
MPL-2.0, as libigl is: this is a port of its code, taken at libigl commit 7100764. The method is its authors'.
1 maintainer
Metadata
1 maintainer
Release files for outie 0.1.8
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| outie-0.1.8.tar.gz | 31.7 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| outie-0.1.8-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 42.2 kB
Release files / outie-0.1.8.tar.gz
| Download URL | outie-0.1.8.tar.gz |
|---|---|
| Size | 31.7 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
a703950aa45a25fa5e9794476273bda398770b9774c54655c3def0d9f3e87fe0
|
|
BLAKE2b-256 checksum How to use checksums |
6db0218744fb9b41272ade2b5a1cf500723fd9908172aa0632ff087a2ea3fc71
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
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 Oct 3, 2026.
Transparency logRelease files / outie-0.1.8-py3-none-any.whl
| Download URL | outie-0.1.8-py3-none-any.whl |
|---|---|
| Size | 10.5 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
ed6a8ff8a91bfcf0f0a5e565972beea9c28c028b1a6139a701e2b2924e443794
|
|
BLAKE2b-256 checksum How to use checksums |
f1d4dbb745d7fcc3a33367bbd2bfc2e36ca4e4cfb8e6f2995c2f347e4646c87a
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
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 Oct 3, 2026.
Transparency log
