Shortest-path map data

Shortest-path map data

These compact street graphs contain OpenStreetMap data for central Poznań, Warsaw, Paris, Berlin, London, New York, and Barcelona. They are stored locally so the animation does not make network requests in the browser.

Each JSON file contains projected [x, y] node positions in meters and edges encoded as [from, to, distanceInMeters, roadTypeIndex]. Only the largest connected street component in each area is retained. Most maps extend approximately 5 km in every direction from the city center. New York uses a larger area centered on Manhattan so the whole island remains in view.

Source: © OpenStreetMap contributors, downloaded through the Overpass API. The data is available under the Open Data Commons Open Database License (ODbL). See the OpenStreetMap copyright page for attribution and licensing details.

Regenerate the files from current OpenStreetMap data with:

node scripts/fetch-shortest-path-map-data.js --force

Pass city IDs after --force to regenerate only selected maps, for example:

node scripts/fetch-shortest-path-map-data.js --force london new-york