Show HN: TerraViz – Real-time flights, earthquakes, ISS on one map

Show HN: TerraViz – Real-time flights, earthquakes, ISS on one map(terraviz.live)

1 points by cvaambikapur 75 days ago | 1 comment

I built a client-side geospatial dashboard that pulls from free public APIs and renders everything on a single Leaflet map.

Data sources: OpenSky (flights), USGS (earthquakes), Open-Meteo (weather), Open Notify (ISS), Overpass/OSM (roads and railways). Vehicle movement is simulated client-side using interpolation along OSM way geometries.

Each layer fetches independently with its own error handling so one API being down never breaks the rest. Map state persists to localStorage and first-time visitors get geolocated via ip-api.com.

Stack: Vite, React, Leaflet, Tailwind CSS.

Would appreciate feedback or suggestions for more data sources to add.

ivannovazzi 68 days ago |

Cool project! The OSM vehicle interpolation along way geometries is a nice touch. If you want to push further into realistic vehicle routing — where vehicles actually navigate junctions and follow shortest paths — Moveet (https://github.com/ivannovazzi/moveet) might be a useful reference. It's an open-source fleet simulator I built that runs A* pathfinding on GeoJSON/OSM road graphs and streams positions over WebSocket in real time, which could complement your existing layer setup.