Download St. Libory map in CityJSON format
A map built from OpenStreetMap data, ready to download
Customize the map
Open this place's area in the constructor and adjust everything to your needs
Open in constructor →Map passport
What this map contains by default
This is how the map is built as-is — every setting can be changed in the constructor.
.city.json
About CityJSON
Map of St. Libory in CityJSON: 161 buildings — in the WGS 84 coordinate system, units are meters.
Which layers are in the file
This file for the selected area contains:
- Buildings
Geometry by layer
- Buildings — solid volumes extruded from building outlines
What the file carries
The CityJSON file for St. Libory: features come as a single stream, without named layers, OpenStreetMap tags are not kept — geometry and styling remain, object heights are carried.
What this file will not contain
In CityJSON for St. Libory the following will not travel: 42 km of roads, 0.2 km² of green areas, 19 points of interest — the format prints solid volumes extruded from building outlines, and other layers are not part of the model.
File size
The expected size of the CityJSON file for St. Libory is about 34 KB; the exact size depends on the chosen layers and area.
Coordinate systems
WGS 84 (EPSG:4326), selectable in the wizard
Units
Meters (projected in the chosen coordinate system)
| Category | 3D |
| File extension | .city.json |
| Tier | Open Beta |
How to use CityJSON for St. Libory
- ninja (a free web viewer for CityJSON) — drag the file into the browser window and see the model at once; the fastest way to check the result.
- cjio (Python, free) — the command cjio file.city.json info shows statistics and checks the structure, while export converts the model into OBJ or other formats.
- QGIS 3 — CityJSON opens through the 3D view, convenient for looking at the buildings together with the flat layers of the map.
Programs that open CityJSON
FAQ: CityJSON for St. Libory
Which layers are included in the 3D model?
Only building geometry. Roads, landuse, water, and boundaries are not included in the 3D scene.
Is terrain relief included?
No, buildings sit on a flat base. Surface relief is available in the Terrain Mesh format.
How is it different from CityGML?
CityJSON is a compact JSON encoding of CityGML. Under 10% the size, easier to parse.
Can I open it in QGIS?
Yes, QGIS 3.x supports CityJSON via the 3D View.
Why are the coordinates written as integers?
That is how the format works: vertices are stored as integers, and the real meters come from multiplying by the factor in the transform block — one step equals a millimeter. Together with vertex deduplication this noticeably shrinks the file, and the precision does not suffer.
