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    qrt

    10.10.1 • Public • Published

    qrt Build Status

    Air Quality Toolkit

    Install

    $ npm install qrt
    

    Usage

    const { windDirectionMean } = require('qrt');
    
    windDirectionMean([360, 45, 90]);
    //=> 45

    API

    windDirectionMean(...args)

    • args

      • Wind direction only: Array<number>
      • Wind direction and speed: Array<number>, Array<number>
      • Wind direction and speed in a '2d' array: <Array<Array<number>>>
    // Wind directions only
    windDirectionMean([360, 45, 90]); // => 45
    
    // Wind directions and speeds
    windDirectionMean([360, 45, 90], [1.48, 1.78, 3.44]); // => 59.76
    
    // Wind directions and speeds in '2d' format
    windDirectionMean([
    	[360, 1.48],
    	[45, 1.78],
    	[90, 3.44],
    ]); // => 59.76

    airQualityIndex(PM10, PM25, NO2, O3, SO2)

    • PM10 - Average hourly as Number
    • PM25 - Average hourly as Number
    • NO2 - Average hourly as Number
    • O3 - Average hourly as Number
    • SO2 - Average hourly as Number
    airQualityIndex(5, 0, 0, 0, 0); // => { AQI_POL: 'PM10', AQI_GLOBAL: 5 }

    noiseMean(samples)

    Calculates noise using logarithic average of the values

    • samples - Array of noise measurements, Array<number>
    noiseMean([70, 70, 70]); // => 70

    bbox(coordinates)

    Get an area defined by two longitudes and two latitudes of the maximum extents of a list of coordinates, in other words min(Latitude), min(Longitude), max(Latitude), max(Longitude)

    • coordinates - Two-dimensional array with latitude and longitude points
    bbox([
    	[51.28, 0.236],
    	[51.494438, -0.489],
    	[51.686, -0.050688],
    ]); // => [51.28, -0.489, 51.686, 0.236]

    Install

    npm i qrt

    DownloadsWeekly Downloads

    1

    Version

    10.10.1

    License

    MIT

    Unpacked Size

    12.6 kB

    Total Files

    8

    Last publish

    Collaborators

    • portothree