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    geo-faker
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    1.2.2 • Public • Published

    GeoFaker

    Some primitives to easily generate fake but deterministic geographic data.

    npm version npm downloads

    Installation

    npm

    npm install geo-faker 
    

    yarn

    yarn add geo-faker
    

    Why?

    - for testing
    - for data generation
    - for data validation
    - for data analysis
    

    How?

    import pointGrid from '@turf/point-grid';
    import circle from '@turf/circle';
    import geoFaker from 'geo-faker';
    const { layer, sqrBBox } = geoFaker;
    
    const cellSide = 10;
    
    // creates a grid of random sized circles
    const featureCollection = layer()
        .add([...pointGrid(sqrBBox([0, 0], 10), cellSide).features]) // add array of points
        .seed(42) // seed the random generator
        .addProperty('radius') // add a property "radius" to each feature with a random value between 0 and 1
        .map((i: any) => circle(i, i.properties.radius)) // create a circle from each point
        .unwarp() // unwarp the feature collection

    Adding multiple fake properties

    You can add multiple fake properties to each feature, by seeding the random generator with a different seed.

    const featureArr = ...
    
    const featureCollection = layer()
        .add(featuresArr) // add array of points
        .seed(42) // seed the random generator
        .addProperty('foo') // add a property to each feature with seed 42
        .seed(20) // seed the random generator again 
        .addProperty('bar') // add a property to each feature with seed 20
        .unwarp() // unwarp the feature collection

    Install

    npm i geo-faker

    DownloadsWeekly Downloads

    2

    Version

    1.2.2

    License

    ISC

    Unpacked Size

    8.79 kB

    Total Files

    4

    Last publish

    Collaborators

    • daviteodoro