How to play · Section 9 of 9
Advanced: Importing Map Data
Trip City can also render a real place. Hand it a GeoJSON or Overpass export of somewhere that exists and it will build that street layout in 3D instead of generating a city of its own.
It is a different thing
This is worth saying plainly, because it is the thing people get wrong: an imported map is not a Trip City city. It is a separate, older viewing mode. You get the roads and the footprints of the real place, rendered and drivable — but not the sectors, plots, gardens, missions and progression that a generated city has.
Treat it as a way to go and look at somewhere, not as a way to start a city. If you want to build, start a generated city or a blank canvas.
Getting a file in
Two doors, same destination:
- From Create a city, choose Import map data instead of
Generate a city. You pick a
.geojsonor.jsonfile and get a preview of what is actually in it — how many roads, how many buildings — before anything is built. - Or press
Iin the overview of a city you are already in.
There is a size cap on the file, and importing needs a browser that can stage it locally; if yours cannot, the import option simply is not offered.
Where to get one
Overpass Turbo exports work well: draw a box around somewhere, ask for its ways and buildings, and export as GeoJSON. Small areas import best — a few streets is a good first try, a whole city centre is a long wait.
Your file stays on your machine
Nothing is uploaded. The file you pick is read by the browser, staged in the browser's own local storage, and read straight back out again when the view opens. It never leaves your machine, and there is no server involved in it at any point.