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topo2geo

CLI for converting TopoJSON files to GeoJSON

Installation

pip install topo2geo

Depends on shapely and click

Usage

[~]$ topo2geo input.topojson output.geojson

Multilayered Topojsons

If the topojson contains mulitple layers (i.e. there are multiple values in the "objects" key). Then seperate geojson files will be output with the layer name.

For example a topojson containing states and counties:

{
    "type": "Topology",
    "objects": {
        "county": {
            "type": "GeometryCollection",
            "geometries": [...]
        },
        "state": {
            "type": "GeometryCollection",
            "geometries": [...]
        }
    }
}

would produce two geojson files, output_geo_county.json and output_geo_state.json

Troubleshooting

If you experience a "segmentation fault" one thing to try is explained here:

pip install shapely --no-binary shapely

Credits

Originally written by sgillies and perrygeo. Converted to Python3 and packaged into a CLI by kylepollina.

Sources:

• https://gist.github.com/perrygeo/1e767e42e8bc54ad7262
• https://github.com/sgillies/topojson/blob/master/topojson.py

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License - https://github.com/topojson/topojson/blob/master/LICENSE.md