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fix: add India boundary override from Natural Earth 50m data (#1796)

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Adds India (IN) to country-boundary-overrides.geojson using the same
Natural Earth 50m Admin 0 Countries dataset already used for Pakistan.
The override system automatically replaces the base geometry on app load,
providing a higher-resolution MultiPolygon boundary (1518 points).

Renames the fetch script to reflect its broader purpose and updates
doc references in CONTRIBUTING.md and maps-and-geocoding.mdx.

Fixes koala73/worldmonitor#1721

Co-authored-by: stablegenius49 <185121704+stablegenius49@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Elie Habib <elie.habib@gmail.com>
This commit is contained in:
Stable Genius
2026-03-18 15:40:05 -07:00
committed by GitHub
parent 2268df2bfc
commit 84ce00d026
4 changed files with 37 additions and 25 deletions
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4
CONTRIBUTING.md
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@@ -259,10 +259,10 @@ For endpoints that deal with non-JSON payloads (XML feeds, binary data, HTML emb
### Country boundary overrides
Country outlines are loaded from `public/data/countries.geojson`. Optional higher-resolution overrides (sourced from [Natural Earth](https://www.naturalearthdata.com/)) are served from R2 CDN. The app loads overrides after the main file and replaces geometry for any country whose `ISO3166-1-Alpha-2` (or `ISO_A2`) matches. To refresh the Pakistan boundary from Natural Earth, run:
Country outlines are loaded from `public/data/countries.geojson`. Optional higher-resolution overrides (sourced from [Natural Earth](https://www.naturalearthdata.com/)) are served from R2 CDN. The app loads overrides after the main file and replaces geometry for any country whose `ISO3166-1-Alpha-2` (or `ISO_A2`) matches. To refresh boundary overrides from Natural Earth, run:
```bash
node scripts/fetch-pakistan-boundary-override.mjs
node scripts/fetch-country-boundary-overrides.mjs
rclone copy public/data/country-boundary-overrides.geojson r2:worldmonitor-maps/
```

2
docs/maps-and-geocoding.mdx
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@@ -117,7 +117,7 @@ The override mechanism lets us improve individual country boundaries without rep
```
5. No code changes needed — the app picks up the new geometry automatically
**Example script**: `scripts/fetch-pakistan-boundary-override.mjs` downloads the full Natural Earth 50m dataset (~24 MB), extracts Pakistan's feature, and writes the override file.
**Example script**: `scripts/fetch-country-boundary-overrides.mjs` downloads the full Natural Earth 50m dataset (~24 MB), extracts country features (currently Pakistan and India), and writes the override file.
### Geopolitical Sensitivity

2
public/data/country-boundary-overrides.geojson
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File diff suppressed because one or more lines are too long

54
scripts/fetch-pakistan-boundary-override.mjs → scripts/fetch-country-boundary-overrides.mjs
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@@ -1,12 +1,14 @@
#!/usr/bin/env node
/**
* Fetches Pakistan's boundary from Natural Earth 50m Admin 0 Countries and writes
* Fetches country boundaries from Natural Earth 50m Admin 0 Countries and writes
* country-boundary-overrides.geojson locally. After running, upload to R2:
* rclone copy public/data/country-boundary-overrides.geojson r2:worldmonitor-maps/
*
* Note: downloads the full NE 50m countries file (~24 MB) to extract Pakistan.
* Currently extracts: Pakistan (PK), India (IN)
*
* Usage: node scripts/fetch-pakistan-boundary-override.mjs
* Note: downloads the full NE 50m countries file (~24 MB) to extract boundaries.
*
* Usage: node scripts/fetch-country-boundary-overrides.mjs
* Requires network access.
*/
@@ -19,6 +21,12 @@ const NE_50M_URL = 'https://raw.githubusercontent.com/nvkelso/natural-earth-vect
const OUT_DIR = join(__dirname, '..', 'public', 'data');
const OUT_FILE = join(OUT_DIR, 'country-boundary-overrides.geojson');
/** Countries to extract from Natural Earth and include as boundary overrides. */
const OVERRIDE_COUNTRIES = [
{ iso2: 'PK', iso3: 'PAK', name: 'Pakistan' },
{ iso2: 'IN', iso3: 'IND', name: 'India' },
];
async function main() {
console.log('Fetching Natural Earth 50m countries...');
const resp = await fetch(NE_50M_URL, { signal: AbortSignal.timeout(60_000) });
@@ -29,27 +37,31 @@ async function main() {
if (!data?.features?.length) {
throw new Error('Invalid GeoJSON: no features');
}
const pak = data.features.find((f) => f.properties?.ISO_A2 === 'PK' || f.properties?.['ISO3166-1-Alpha-2'] === 'PK');
if (!pak) {
throw new Error('Pakistan (PK) feature not found in Natural Earth data');
}
const override = {
type: 'FeatureCollection',
features: [
{
type: 'Feature',
properties: {
name: 'Pakistan',
'ISO3166-1-Alpha-2': 'PK',
'ISO3166-1-Alpha-3': 'PAK',
},
geometry: pak.geometry,
const features = [];
for (const country of OVERRIDE_COUNTRIES) {
const feature = data.features.find(
(f) => f.properties?.ISO_A2 === country.iso2 || f.properties?.['ISO3166-1-Alpha-2'] === country.iso2,
);
if (!feature) {
throw new Error(`${country.name} (${country.iso2}) feature not found in Natural Earth data`);
}
features.push({
type: 'Feature',
properties: {
name: country.name,
'ISO3166-1-Alpha-2': country.iso2,
'ISO3166-1-Alpha-3': country.iso3,
},
],
};
geometry: feature.geometry,
});
console.log(`Extracted ${country.name} (${country.iso2})`);
}
const override = { type: 'FeatureCollection', features };
mkdirSync(OUT_DIR, { recursive: true });
writeFileSync(OUT_FILE, JSON.stringify(override) + '\n', 'utf8');
console.log('Wrote', OUT_FILE);
console.log('Wrote', OUT_FILE, `(${features.length} countries)`);
}
main().catch((err) => {