Overpass API JSON
Open BetaOverpass JSON is the response format of the Overpass API, a read-only query language over OpenStreetMap (Roland Olbricht, since 2008). It is a compact JSON with a list of elements (node/way/relation), their geometry, tags, and a meta block — the structure parsed directly by osmnx, the QGIS QuickOSM plugin, overpass-turbo, and dozens of pipelines that use OSM as a structured dataset. Our exporter builds JSON of the same structure from the OSM layers: each feature becomes an element of the appropriate type with id, coordinates, geometry, and tags, plus a meta section with generator and version. Honestly: we synthesize an Overpass-format-compatible response from our selection — this is not a live Overpass API query, but the result can be handed to downstream tools as a drop-in replacement for a public Overpass response.
ویژگیهای کلیدی
دربارهٔ قالب Overpass JSON
Overpass JSON is the response format of the Overpass API, the query language for OpenStreetMap data. It is compact JSON: an elements array where every object is a node, way or relation with its coordinates, geometry and tags, plus a service meta block. This structure is read directly by OSMnx, the QuickOSM plugin for QGIS, overpass-turbo and dozens of research pipelines.
The format is chosen when OSM is used as a structured dataset: counting objects by tags, assembling a street graph, exporting points of interest into your own script. A ready file instead of a live query removes the two familiar Overpass problems — rate limits and timeouts on large selections — and it also makes the result reproducible: you hold a fixed snapshot of the data.
The exporter synthesizes a response of the same structure from your selection: points become node elements with coordinates, lines and polygons become way elements with a node list and geometry, tags are carried over as they are, and the generator and version are written into meta. Identifiers are issued by us from a separate range so as not to collide with real OSM numbers; the size of a single file is limited to a hundred thousand elements. This is not a live query to Overpass but a compatible replacement for its response.
چه برنامهای فایلهای Overpass JSON را باز میکند
برنامهها و نرمافزارهای زیر میتوانند فایلهای Overpass API JSON (.json) صادرشده از OSM2CDR را باز و ویرایش کنند و با آنها کار کنند:
Format specifications
- Open standard
- 2D only
- Lossless (no quality loss)
- Stores feature attributes
- Output: 1 file
- An Overpass-API-compatible JSON (elements node/way/relation + meta) synthesized from the selection; a drop-in replacement for a public Overpass response, not a live query.
چه کسانی از نقشههای Overpass JSON استفاده میکنند
چگونه Overpass JSON را خروجی بگیریم
نحوه باز کردن پس از خروجی
- Python — json.load() and work with the elements list: filter by tags, count objects, export into a table. The overpy library accepts the same data.
- jq — a quick check in the terminal: jq '.elements | length' map.json shows how many objects arrived, jq '.elements[0]' shows what a single element looks like.
- osmtogeojson — conversion into GeoJSON with one command, if it is more convenient to work in GIS or on the web from there.
- QGIS with the QuickOSM plugin — load the saved response and get layers on the map without calling the public Overpass.
- Your own parsers and pipelines that already read Overpass output — put the file in place of the URL, the format is the same.
نقشههای محبوب در Overpass JSON
خروجی نقشهٔ Overpass API JSON را دریافت کنید
نقشههای حرفهای Overpass JSON را از OpenStreetMap دانلود کنید. تولید آنی برای هر ناحیه.