https://github.com/apirogov/tilezz-ratdb
RatDB: rat polygon datasets (DAFSA block format) served to the tilezz web explorer; one dataset per branch
https://github.com/apirogov/tilezz-ratdb
Last synced: 3 days ago
JSON representation
RatDB: rat polygon datasets (DAFSA block format) served to the tilezz web explorer; one dataset per branch
- Host: GitHub
- URL: https://github.com/apirogov/tilezz-ratdb
- Owner: apirogov
- License: cc-by-sa-4.0
- Created: 2026-06-03T22:46:32.000Z (20 days ago)
- Default Branch: main
- Last Pushed: 2026-06-03T23:43:54.000Z (20 days ago)
- Last Synced: 2026-06-04T02:07:46.011Z (20 days ago)
- Size: 8.68 MB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# tilezz-ratdb
Rat polygon datasets ("RatDB") for the [tilezz](https://github.com/apirogov/tilezz)
web explorer, stored in the tilezz-rat-dafsa-blocks format.
## Layout
One dataset per orphan branch; `main` only holds this index. Each
dataset branch is a self-describing RO-Crate 1.2 asset: manifest
(`block_index.json`), `ro-crate-metadata.json`, schemas, tools,
README, and the content-addressed `blocks/.bin` files.
The explorer fetches blocks lazily via
`https://raw.githubusercontent.com/apirogov/tilezz-ratdb//blocks/.bin`,
pinned to a commit so the served bytes are immutable.
## Datasets
| branch | dataset | sequences | source commit |
|---|---|---|---|
| `zz4-n32-free` | ZZ4, perimeter <= 32, free (OEIS A266549) | 435646127 | `dd4fd140969d82adddc54331d4d652c1f72d45a6` |
| `zz8-n20-free` | ZZ8, perimeter <= 20, free (OEIS A316198) | 2940554725 | `aea0104980c8742d828060ec03437c64b72afa18` |
| `zz6-n24-free` | ZZ6, perimeter <= 24, free (OEIS A284869) | 7099803810 | `aea0104980c8742d828060ec03437c64b72afa18` |
| `zz10-n18-free` | ZZ10, perimeter <= 18, free (OEIS A316200) | 2875831850 | `aea0104980c8742d828060ec03437c64b72afa18` |
| `zz12-n16-free` | ZZ12, perimeter <= 16, free (OEIS A316192) | 1696726440 | `aea0104980c8742d828060ec03437c64b72afa18` |
| `zz3-n39-free` | ZZ3 (ZZ6 step-2 subring), perimeter <= 39, free | 730680086 | `7b63a8895289033f229fb1e05815d1948f23983e` |
| `zz5-n25-free` | ZZ5 (ZZ10 step-2 subring), perimeter <= 25, free | 1699394169 | `7b63a8895289033f229fb1e05815d1948f23983e` |
| `zz7-n21-free` | ZZ7 (ZZ14 step-2 subring), perimeter <= 21, free | 1116823845 | `3cdd7eca1425f25769042ed0eb2274f97db6de40` |
| `zz9-n18-free` | ZZ9 (ZZ18 step-2 subring), perimeter <= 18, free | 503397962 | `3cdd7eca1425f25769042ed0eb2274f97db6de40` |
## License
All datasets: CC-BY-SA 4.0 (see each branch's README for the full
notice). Produced by [tilezz](https://github.com/apirogov/tilezz).