Extract geojson from shape files

About

This package will help us to extract the geojson data from different shape files. It supports following files - zip, kml, wkt, topojson, json, geojson.

Installation

npm install --save @syngenta/convert-to-geojson

How to use?

Import the package: import getGeojson from '@syngenta/convert-to-geojson';

Call the function: const geojson = await getGeojson(file);

Here

• file - should be the file from which you want to extract the geojson data

If you have multiple files, you need to call this function multiple times.

Output will look like this

{
    "response": {
        "type": "FeatureCollection",
        "features": [
            {
                "type": "Feature",
                "geometry": {
                    "type": "Polygon",
                    "coordinates": [
                        [
                            [
                                23.93942364598064,
                                -9.075276196185797
                            ],
                            [
                                23.93942364598064,
                                -9.093105275018814
                            ],
                            [
                                23.95383160389386,
                                -9.093105275018814
                            ],
                            [
                                23.95383160389386,
                                -9.075276196185797
                            ],
                            [
                                23.93942364598064,
                                -9.075276196185797
                            ]
                        ]
                    ]
                },
                "properties": {}
            }
        ]
    },
    "fileName": "map"
}

Files for testing:

You can use files from shape_files_for_testing folder for testing

References

• https://github.com/mapbox/togeojson#readme
• https://github.com/calvinmetcalf/shapefile-js
• https://github.com/topojson/topojson-client
• https://github.com/mapbox/wellknown

FAQ