OpenStreetMap XML (.osm)
Open BetaOSM XML is the native text format of OpenStreetMap, holding nodes, ways, and relations with tags since 2004. It is human-readable, opens in Notepad, and parses with any XML parser, and in the OSM world every tool understands it: JOSM, osmium, osm2pgsql, GDAL. Our exporter assembles a valid OSM API 0.6 document from the selected OSM layers: points become node elements, lines become way elements, polygons become closed ways (first node equals last), and tags carry over as key-value pairs. The file is UTF-8; multiple layers are packed into a ZIP. Honestly: we assign negative ids to nodes and ways — a marker for «data not from the live database» — so the file is handy for viewing in JOSM, importing into PostGIS, and converting through GDAL, but is not meant for uploading straight back into OSM.
Principais características
Sobre o formato OSM XML
OSM XML is OpenStreetMap's own text format: nodes, ways and their tags written as ordinary XML following the OSM API 0.6 schema. The file is human-readable, opens in a notepad, is parsed by any XML parser, and in the OSM world every tool understands it — JOSM, osmium, osm2pgsql, GDAL.
The format is chosen when you need the objects themselves with their tags rather than a picture: to look at a selection in JOSM, to load an area into PostGIS for analytics, to run it through your own script or convert it into any other format — OSM XML is the universal go-between for that.
The exporter assembles a document of the same structure: points become node elements, lines become ways, polygons become closed ways (the first node matches the last), and tags are carried over as key-value pairs. The encoding is UTF-8; one layer means an .osm file, several layers mean a ZIP archive. Identifiers are issued by us and are negative: that is the accepted OSM marker for "data not in the database yet". The original OSM object numbers are therefore not preserved, and complex relations — multipolygons with holes and routes — are not recreated in a flat export.
Que programa abre ficheiros OSM XML
Os seguintes programas e aplicações podem abrir, editar e trabalhar com ficheiros OpenStreetMap XML (.osm) (.osm) exportados do OSM2CDR:
Format specifications
- Open standard
- 2D only
- Lossless (no quality loss)
- Stores feature attributes
- Output: 1 file
- An OSM API 0.6 document (nodes/ways, closed ways for polygons) with negative ids marking non-uploaded data; a single .osm, multiple layers as a ZIP.
Quem utiliza mapas OSM XML
Como exportar para OSM XML
Como abrir depois da exportação
- JOSM — File -> Open, pick the .osm: the layer opens as an ordinary selection, and objects and tags can be browsed and filtered. There is no need to upload such a file back into OSM.
- QGIS (free) — Layer -> Add Vector Layer -> .osm: the GDAL driver sorts the data into points, lines and polygons by itself.
- osm2pgsql — import into PostGIS with a single command for further analytics with SQL queries over tags.
- osmium-tool — conversion into binary PBF, merging and filtering of selections: osmium cat map.osm -o map.osm.pbf.
- ogr2ogr (GDAL) — a one-off conversion into GeoJSON, GeoPackage or Shapefile if a colleague needs the file in a familiar GIS format.
Mapas populares em OSM XML
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