# preview/

**1 file**: `map_preview.png` — a 1600×1100 PNG (~1 MB) showing the
geographic distribution of the full dataset. Same image embedded in
the root README's "Geographic distribution" section.

Generated by `scripts/render_map_screenshot.py`, which renders
[`../sample/sample_map.jsonl`](../sample/sample_map.jsonl) as a folium
map and screenshots it via headless Chromium. The map shows a
**sampled** subset of polygons (~17k representative polygons
across all 284 countries); for the exhaustive 14.2M-polygon list
use [`../combined/all_world.parquet`](../combined/).

[Back to the dataset root](../README.md)