SwissViz

Interactive map of Swiss companies built with Open Data

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Data & Pipeline

1. Download — company data fetched from opendata.swiss, one CSV per canton (26 total)
2. Geocode — scripts/geocode.py queries the Mapbox Geocoding API, building each query as "{street}, {postal_code} {locality}, Switzerland"; a local cache (geocode_cache.json) makes runs resumable; rate and mode are controlled via flags (--sleep, --append, --canton, …)
3. Chunk & compress — geocoded rows serialised to JSON arrays and gzip-compressed into numbered chunks; a <CANTON>.json metadata file records the chunk count ({"_chunks": N})
4. Render — static files only, no backend; browser fetches chunks on demand, decompresses with pako, and renders with deck.gl on a MapLibre GL basemap using CartoDB Dark Matter tiles (OSM data, no token required)