GeoJSON
Open BetaGeoJSON ಎಂಬುದು JSON ಆಧಾರಿತ ಮುಕ್ತ ಭೂದತ್ತಾಂಶ ಸ್ವರೂಪ. ವೆಬ್ ಡೆವಲಪರ್ಗಳಿಗೆ ಪ್ರಮಾಣಿತ ಪರಿಹಾರ, Leaflet, Mapbox, OpenLayers, D3.js ಮತ್ತು ಯಾವುದೇ GIS ತಂತ್ರಾಂಶದೊಂದಿಗೆ ಹೊಂದಿಕೆಯಾಗುತ್ತದೆ.
ಪ್ರಮುಖ ವೈಶಿಷ್ಟ್ಯಗಳು
GeoJSON ಫಾರ್ಮ್ಯಾಟ್ ಬಗ್ಗೆ
GeoJSON is an open geodata format (RFC 7946) in which geography is written as ordinary JSON: an array of features, each with a geometry and a set of properties. A human can read it in a text editor, any programming language parses it in one line, and practically all web cartography understands it — Leaflet, Mapbox GL, OpenLayers, D3.js — with no plugins or converters.
An OSM map is exported to GeoJSON when you need the features themselves rather than a picture: to attach a layer to a website, compute statistics for a district, filter the categories you need, load the data into PostGIS or run it through GeoPandas. It is also the most convenient intermediate format: from it, ogr2ogr or QGIS will make SHP, GeoPackage, KML — anything you like.
The output is a single UTF-8 file: one FeatureCollection gathering all the layers of the selected area. Every feature keeps its OpenStreetMap attributes (name, type, tags) and a service property _layer with the name of its source layer — one line of filtering takes the data apart again into roads, buildings, water, greenery and points of interest. Coordinates are WGS84 (EPSG:4326), as the specification requires; the recorded precision is six decimal places, about ten centimeters on the ground: the file drops into any GIS and any web framework with no reprojection.
GeoJSON ಫೈಲ್ಗಳನ್ನು ಯಾವ ಪ್ರೋಗ್ರಾಮ್ ತೆರೆಯುತ್ತದೆ
OSM2CDR ನಿಂದ ಎಕ್ಸ್ಪೋರ್ಟ್ ಮಾಡಲಾದ GeoJSON (.geojson) ಫೈಲ್ಗಳನ್ನು ಈ ಕೆಳಗಿನ ಪ್ರೋಗ್ರಾಮ್ಗಳು ಮತ್ತು ಅಪ್ಲಿಕೇಶನ್ಗಳು ತೆರೆಯಬಹುದು, ಸಂಪಾದಿಸಬಹುದು ಮತ್ತು ಬಳಸಬಹುದು:
Format specifications
- Open standard
- 3D coordinates supported
- Lossless (no quality loss)
- Stores feature attributes
- Output: 1 file
- RFC 7946 GeoJSON. Single UTF-8 file. WGS84 (EPSG:4326). Coordinate precision: float64. Direct import in QGIS, Mapbox, Leaflet, PostGIS.
GeoJSON ನಕ್ಷೆಗಳನ್ನು ಯಾರು ಬಳಸುತ್ತಾರೆ
GeoJSON ಅನ್ನು ಹೇಗೆ ಎಕ್ಸ್ಪೋರ್ಟ್ ಮಾಡುವುದು
ರಫ್ತಿನ ನಂತರ ಹೇಗೆ ತೆರೆಯುವುದು
- geojson.io — drag the file into a browser window and see the features on the map right away, clicking to inspect properties. Good for a quick check; large files are better not uploaded there.
- QGIS (free) — Layer → Add Vector Layer, choose the .geojson. After that: filter on the _layer field, styling, export to SHP or GeoPackage.
- Leaflet / Mapbox GL JS / OpenLayers — put the file next to your project and hook it up: in Leaflet that is L.geoJSON(data).addTo(map), in Mapbox GL a source of type geojson.
- Python and data analysis — geopandas.read_file("map.geojson") and then the pandas toolkit: slices by feature type, areas, density, joins with your own tables.
- PostGIS and databases — ogr2ogr -f PostgreSQL PG:"..." map.geojson loads everything in one command; by hand, the geometry is read with ST_GeomFromGeoJSON.
GeoJSON ನಲ್ಲಿ ಜನಪ್ರಿಯ ನಕ್ಷೆಗಳು
GeoJSON ನಕ್ಷೆ ಎಕ್ಸ್ಪೋರ್ಟ್ಗಳನ್ನು ಪಡೆಯಿರಿ
OpenStreetMap ನಿಂದ ವೃತ್ತಿಪರ GeoJSON ನಕ್ಷೆಗಳನ್ನು ಡೌನ್ಲೋಡ್ ಮಾಡಿ. ತಕ್ಷಣದ ರಚನೆ, ಯಾವುದೇ ಪ್ರದೇಶ.
ಪದೇ ಪದೇ ಕೇಳಲಾಗುವ ಪ್ರಶ್ನೆಗಳು
ಇತರ ಫಾರ್ಮ್ಯಾಟ್ಗಳೊಂದಿಗೆ ಹೋಲಿಸಿ
Convert to GeoJSON and back
GeoJSON guides and tutorials
ಸಂಬಂಧಿತ ಫಾರ್ಮ್ಯಾಟ್ಗಳು
ಸಾಮಾನ್ಯವಾಗಿ ಒಟ್ಟಿಗೆ ಎಕ್ಸ್ಪೋರ್ಟ್ ಮಾಡಲಾಗುತ್ತದೆ
Related Articles
GeoJSON to DXF and DWG: Converting to CAD Without Losing Scale
How to convert GeoJSON into DXF and DWG: why degree coordinates produce a drawing a fraction of a unit across, reproject
usecasePlot Boundaries from a Registry Coordinate List: Building the Outline and Seeing It on a Map
You have a coordinate list from a land registry extract: how to build the plot outline in CAD without swapping X and Y,
usecaseDownload a map of Minsk: which format for which task
Where to download a map of Minsk and in which format: PDF and SVG for print, DWG and DXF for CAD, GeoJSON and GeoPackage