# Licensing and attribution

Independent, unofficial educational reconstruction. Not a university publication,
measured survey, BIM dataset, or official navigation service.

| Material | License / terms |
| --- | --- |
| Original Python, JavaScript, CSS, HTML, configuration and documentation | MIT, see `LICENSE` |
| Original model geometry, procedural materials, generated screenshots / renders | CC BY 4.0, see `LICENSES/CC-BY-4.0.txt`; credit MuQY1818 and link this repository, indicating changes |
| OSM snapshots and derived spatial database (`references/osm-*.json`, `explorer/public/data/campus.json`) | ODbL 1.0, copyright OpenStreetMap contributors; see `LICENSES/ODbL-1.0.txt` |
| Spatial content in the campus Blender / GLB | Produced using OpenStreetMap; preserve OSM attribution. Source snapshots and derived database remain available under ODbL independently of the original artwork license |
| Poly Haven textures and HDR environment | CC0 1.0; `explorer/public/textures/sources.json` records asset URLs and checksums |
| Noto Sans CJK SC Regular, including packed copies inside `.blend` | SIL Open Font License 1.1; see `assets/fonts/LICENSE.txt` |
| Three.js runtime | MIT; copyright Three.js authors |
| Lucide icons | ISC; copyright Lucide contributors; upstream Feather attribution retained in the package license |
| Rapier runtime | Apache 2.0; copyright Rapier contributors / Dimforge |
| Draco decoder | Apache 2.0; copyright Draco authors; distributed with Three.js |

The root MIT license does not relicense geographic data, model artwork or
third-party materials. The online build includes runtime licenses under `licenses/`.
The npm lockfile fixes exact dependency versions.

## Excluded materials

Original campus photos, publisher web caches, map artwork / PDFs, user-supplied
screenshots, contact sheets, proprietary system fonts and old `.blend1` backups
are not redistributed. `sources.json` contains reference URLs only; web
availability does not grant redistribution rights. Reference collectors are
optional local research tools, not part of the build or permission to republish.

The photographic east-gate crest is replaced with a plain medallion in this
public model. Gate lettering uses Noto Sans CJK, not the original calligraphy.
The university name identifies the depicted place. No university logo, trademark,
endorsement, architectural rights or third-party rights are granted by these licenses.

## Sources

- Project: https://github.com/MuQY1818/cumt-nanhu-campus
- OpenStreetMap: https://www.openstreetmap.org/copyright
- ODbL: https://opendatacommons.org/licenses/odbl/1-0/
- Poly Haven: https://polyhaven.com/license
- Noto: https://github.com/notofonts/noto-cjk/tree/main/Sans
- Three.js: https://github.com/mrdoob/three.js
- Lucide: https://github.com/lucide-icons/lucide
- Rapier: https://github.com/dimforge/rapier
- Draco: https://github.com/google/draco