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GeoArrow (Apache Arrow)

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.arrow · application/vnd.apache.arrow.file

GeoArrow ir uz Apache Arrow balstīts kolonnveida formāts ģeotelpiskiem datiem. Ideāli piemērots lielo datu analītikai, ML plūsmām un vizualizācijai. Darbojas ar DuckDB, Pandas, Polars un citiem ar Arrow saderīgiem rīkiem.

OpenStreetMap data as of 26 October 2026 · 17 days ago

Eksportēt GeoArrow tūlīt ✨ Atklātā beta versija — bezmaksas, bez ierobežojumiem

Galvenās iespējas

✓Kolonnveida glabāšana

✓Nulles kopēšanas nolasījumi

✓Saderība ar Arrow ekosistēmu

Example GeoArrow export (city centre, 1x0.5 km) — Example: city centre, ~1×0.5 km, medium detail

All map examples by format

Par GeoArrow formātu

Apache Arrow is the standard for representing tables in memory: columns lie contiguously, the schema is described explicitly, and different programs read the very same bytes without copying or re-encoding. GeoArrow is the agreement on how to store geometry inside that structure so that GeoPandas, DuckDB, Polars, deck.gl and GDAL understand it.

The format is taken when data is not displayed but computed: spatial joins over millions of features, feature preparation for a model, a dashboard on top of a columnar engine. At those volumes, parsing text GeoJSON eats more time than the analysis itself.

The output is a single .arrow file (Apache Arrow IPC, also known as Feather v2). All the layers are merged into one table, and every row has a layer column with the name of its source layer. Geometry is stored as a binary column in WKB format, and the WGS84 (EPSG:4326) coordinate system is described in the schema metadata per the GeoArrow 1.0.0 convention.

By default the file is compressed with the zstd codec; you can choose lz4 or no compression at all. There is a safety limit of 10 million features per export, so as not to eat up the server's memory.

Kura programma atver GeoArrow failus

Tālāk norādītās programmas un lietotnes var atvērt, rediģēt un strādāt ar GeoArrow (Apache Arrow) (.arrow) failiem, kas eksportēti no OSM2CDR:

💻DuckDB 💻Apache Arrow 💻Pandas 💻Polars 💻GeoPandas

Format specifications

Open standard
3D coordinates supported
Lossless (no quality loss)
Stores feature attributes
Output: 1 file
GeoArrow .arrow (Apache Arrow extension). In-memory columnar geometry, zero-copy interop with pandas, R, Julia.

Kas izmanto GeoArrow kartes

🏗

Lielo datu analītika

Millions of features are read by an analytical engine with no text parsing.

💻

ML plūsmas

Ready spatial features for training models — straight away as a table.

📊

Kolonnveida analīze

Queries on individual columns run faster than on row-based formats.

🎨

Vizualizācija

A source for lonboard and deck.gl, which draw Arrow tables directly.

🗺

Zinātniskā skaitļošana

The same file is read by Python, R and Julia — exchange between teams with no conversion.

Kā eksportēt GeoArrow

Atlasiet apgabalu

Uzzīmējiet taisnstūri vai daudzstūri interaktīvajā kartē vietnē osm2cdr.ru

Izvēlieties GeoArrow

Atlasiet GeoArrow (Apache Arrow) no 127 pieejamo eksporta formātu saraksta

Eksportēt

Noklikšķiniet uz Eksportēt un saņemiet savu .arrow failu 1–5 minūtēs

Lejupielādēt

Lejupielādējiet gatavo GeoArrow failu un atveriet to programmā DuckDB

Kā atvērt pēc eksporta

Python — pyarrow.ipc.open_file("map.arrow").read_all() gives you the table; the geometry is restored from the WKB column with shapely.from_wkb or geopandas.
DuckDB — INSTALL spatial; LOAD spatial; then SELECT * FROM 'map.arrow' and ST_GeomFromWKB on the geometry column.
Polars and pandas — pl.read_ipc("map.arrow") or reading through pyarrow: the attribute part works like an ordinary table, with no geo wrapping.
R and Julia — the arrow packages read the same file: it is one format across all languages, no conversion needed.
Visualization and GIS — lonboard and deck.gl draw Arrow tables directly; for QGIS it is easier to convert to GeoPackage with ogr2ogr (GDAL 3.8 and newer).

Free