Download Comas map in USDZ 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.
.usdz
About USDZ
Map of Comas in USDZ: 2 652 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 USDZ file for Comas: 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 USDZ for Comas the following will not travel: 843 km of roads, 1 water features, 9.8 km² of green areas, 1 306 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 USDZ file for Comas is about 2.9 MB; 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 | GIS |
| File extension | .usdz |
| Tier | Open Beta |
How to use USDZ for Comas
- iPhone or iPad — send the file to yourself in Messages or by email and tap it: Quick Look will open the model and offer to place it in the room.
- Your own site — a link like <a rel="ar" href="map.usdz"><img src="preview.jpg"></a>; it matters that the server serves the file with the model/vnd.usdz+zip type.
- macOS — Finder shows a preview with the space bar, while Reality Composer and Reality Converter open the model for edits and conversion.
Programs that open USDZ
FAQ: USDZ for Comas
Can I open USDZ without an Apple device?
On iPhone/iPad — Safari Quick Look automatically; on macOS — Finder. On Windows/Linux — Pixar's usdview or three.js online viewers. Native USDZ preview outside the Apple ecosystem is weaker than for glTF.
Are there animations and facade textures?
No. Models are static, mesh-only, with no animation (that needs UsdSkel rigging absent from OSM). Color is a solid fill per building type, with no photorealistic textures. Buildings are hollow shells without interiors.
Why is export area-limited?
AR Quick Look recommends files up to ~25 MB and dislikes models heavier than ~200 MB. Extruding a whole metropolis exceeds the limit, so the practical ceiling is about 5 km².
How is USDZ different from glTF?
USDZ is a zipped USD optimized for Apple AR Quick Look (mmap-friendly, single file). glTF is the cross-platform Khronos standard for web/AR/VR. For out-of-the-box iOS AR, USDZ is more convenient.
Where does the building height come from?
From the height tag, if it is set in OpenStreetMap. Otherwise — the number of floors in building:levels at 3 meters each, then a typical height for that type of development, and as a last resort 9 meters.
