Service-area map data sources
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Generated on 28 October 2026.

1. Local page paths and public labels
   Read-only source: SEO_expertplombier.be/data/source/rows.json
   Scope: the 644 contractual local page paths supplied for Expert Plombier.

2. Province geometry and 70 existing reference points
   Source: mathiasleroy/Belgium-Geographic-Data
   https://github.com/mathiasleroy/Belgium-Geographic-Data
   Adapted through the Expert Dépannage reference implementation.
   License: MIT; full text at /service-areas-map-LICENSE.txt.

3. Remaining municipality positions
   Source polygons: be-municip-lamberts.geo.json from the same MIT-licensed
   Belgium-Geographic-Data project. Each point is the area-weighted centroid of
   the municipality polygon, projected into the corresponding province shape.

4. Grâce-Berleur district position
   Source: Nominatim / OpenStreetMap, queried 28 October 2026.
   Coordinates: 50.6406077, 5.4973000.
   https://www.openstreetmap.org/copyright
   OpenStreetMap data is available under the Open Database License (ODbL).

Validation
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Every generated point is tested against the SVG polygon of its assigned region
or province. All points must remain inside their assigned shape before release.