ogr2ogr produces invalid GeoJSON when multiple layers are involved (http://trac.osgeo.org/gdal/ticket/3842). For example: ogr2ogr -f GeoJSON "$f.json" "$f" tracks routes For me the bad GeoJSON ...
I understand that elevation can be added as an optional third value in Coordinates (lat, long, elev) in a geojson file, but I can't find a way to actually do that from a gpx file. I've used ogr2ogr to ...
I would like to convert the tree inventory shape files of London (Canada) into a GPX file and if possible into a JSON file. You can download the archive from their Open Data website. It contains the ...
I want to know how I can convert geoJSON data to GPX format.