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Credits

Data sources

Biblioteca del Congreso Nacional de Chile (BCN) / IDE Chile — the regional and communal boundaries this project started from, including the electoral district and senatorial constituency attributes that come with them.

Not used yet, but the ones this project expects to build on. Both are models of how open geographic data should be published:

  • geoBoundaries (William & Mary geoLab) — open ADM0–ADM3 boundaries for every country under CC BY 4.0. This project's property vocabulary (shapeName, shapeISO, shapeGroup, shapeType) deliberately matches theirs, so data can move between the two without translation.
  • Natural Earth — public domain small-scale vector data, maintained by volunteers with support from NACIS.

Standards

  • RFC 7946 — the GeoJSON format, IETF.
  • ISO 3166 — country and subdivision codes.
  • UN M49 — the regional groupings used to organise the catalog.
  • IAU/IAG Working Group on Cartographic Coordinates and Rotational Elements — the 2015 report defining the planetary reference frames used for the Moon and Mars.
  • IAU Gazetteer of Planetary Nomenclature (USGS Astrogeology) — the authoritative registry of approved surface feature names.

Tools

  • MkDocs and Material for MkDocs — this site.
  • mapshaper (Matthew Bloch) — the simplification and conversion workhorse. Its topology-preserving simplification is what makes usable previews possible at all.
  • GDAL/OGR — format conversion and reprojection.
  • Leaflet — the preview maps.
  • ijson — streaming JSON parsing, which is what lets a 70 MB file be scanned in constant memory.
  • USGS Astrogeology — planetary basemaps.

Contributors

Maintained by Andres Marquez (@andresgmg).

See the contributors list on GitHub. If you have contributed and are not listed correctly, please open an issue.