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.
Tính năng chính
Giới thiệu về định dạng 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.
Chương trình nào mở được tệp Overpass JSON
Các chương trình và ứng dụng sau có thể mở, chỉnh sửa và làm việc với tệp Overpass API JSON (.json) được xuất từ OSM2CDR:
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.
Ai sử dụng bản đồ Overpass JSON
Cách xuất Overpass JSON
Cách mở tệp sau khi xuất
- 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.
Bản đồ phổ biến ở định dạng Overpass JSON
Nhận bản đồ xuất ở định dạng Overpass API JSON
Tải bản đồ Overpass JSON chuyên nghiệp từ OpenStreetMap. Tạo tức thì, bất kỳ khu vực nào.