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    grid2geojson

    1.1.0 • Public • Published

    grid2geojson

    Node.js package for convert 2D array grid data to GeoJSON format

    See source code on Github

    Installing

    In Node.js. Install by npm command

    npm install grid2geojson
    

    Example

    Import package

    var grid2geojson = require('grid2geojson');
    

    Initial parameter in this format

    lats = [lat1, lat2, lat3, lat4]
    lons = [lon1, lon2, lon3, lon4]
    data = [[value at lat1lon1, value at lat1lon2, value at lat1lon3, value at lat1lon4],
            [value at lat2lon1, value at lat2lon2, value at lat2lon3, value at lat2lon4],
            [value at lat3lon1, value at lat3lon2, value at lat3lon3, value at lat3lon4],
            [value at lat4lon1, value at lat4lon2, value at lat4lon3, value at lat4lon4]]
    

    And then use function

    padding = true
    var geojson = grid2geojson.toGeoJSON(lats, lons, data, padding);
    

    It's will return like this.

    geojson = [feature at lat1lon1, feature at lat1lon2, feature at lat1,lon3, ...]
    
    feature at lat1lon1 = {
        "type": "Feature",
        "properties": { "value": value at lat1lon1 },
        "geometry": {
            "type": "Polygon",
            "coordinates": [
                [
                    [lon1, lat1],
                    [lon2, lat1],
                    [lon2, lat2],
                    [lon1, lat2]
                ]
            ]
        }
    }
    

    If data is NxN grid and padding is false. output is (N-1)x(N-1) grid If data is NxN grid and padding is true. output is NxN grid

    Authors

    See also the list of contributors who participated in this project.

    License

    This project is licensed under the MIT License - see the LICENSE file for details

    Install

    npm i grid2geojson

    DownloadsWeekly Downloads

    13

    Version

    1.1.0

    License

    MIT

    Unpacked Size

    5.8 kB

    Total Files

    5

    Last publish

    Collaborators

    • arukpupatee