Convert ESRI Shapefile (.shp) to geoJSON (.json)


Conversion result implemented in Google Maps, using data of my hometown Deinze, Belgium

To convert ESRI shapefiles to geoJSON (which you can perfectly use JavaScript and thus pass on to Google Maps, see screenshot above) you will need GDAL (Geospatial Data Abstraction Library) — Mac Users: download here. I have installed GDAL 1.9 Complete but perhaps the framework itself might also do.

After installation, you can use ogr2ogr to do the actual conversion.

Convert ESRI Shapefile to geoJSON:

/Library/Frameworks/GDAL.framework/Programs/ogr2ogr -f "GeoJSON" output.json input.shp

Convert ESRI Shapefile to geoJSON with Coordinates Conversion (here LAMBERT 1972 (EPSG:31370) to WGS84):

/Library/Frameworks/GDAL.framework/Programs/ogr2ogr -f "GeoJSON" -s_srs "EPSG:31370" -t_srs "WGS84" output.json input.shp

The latter is the command you’ll be looking for when working with gisoost.be buurtwegen data.

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