dms2dec

    1.1.0 • Public • Published

    dms2dec.js

    Build status NPM downloads NPM version Node version Dependency status

    Degrees, minutes, seconds (sexagesimal) to decimal GPS positions. Useful for parsing PGS exif tags in geotagged images.

    Install

    Node.JS

    npm install dms2dec --save
    var dms2dec = require('dms2dec');

    Web

    <script language="JavaScript" src="/dms2dec.js"></script>

    Usage

    [latDec, lonDec] = dms2dec(String lat, String latRef, String lon, String lonRef);

    Params

    • lat – latitude in "degrees, minutes, seconds" format
    • lagRef – latitude hemisphere reference (N or S)
    • lon – longitude in "degrees, minutes, seconds" format
    • lonRef – longitude hemisphere reference (E or W)

    Return

    • latDec – latitude converted into decimal format
    • lonDec – longitude converted into decimal format

    Parse dms strings

    var dec = dms2dec("60/1, 21/1, 4045/100", "N", "5/1, 22/1, 1555/100", "E");
    // dec[0] == 60.36123611111111, dec[1] == 5.370986111111111
     
    // without spaces or commas in the dms strings are also supported
    var dec = dms2dec("60/1,21/1,4045/100", "N", "5/1,22/1,1555/100", "E");
    var dec = dms2dec("60/1 21/1 4045/100", "N", "5/1 22/1 1555/100", "E");

    Parse dms arrays

    var dec = dms2dec(["60/1", "21/1", "4045/100"], "N", ["5/1", "22/1", "1555/100"], "E");
    // dec[0] == 60.36123611111111, dec[1] == 5.370986111111111

    dms arrays as decimal

    var dec = dms2dec([60, 21, 40.45], "N", [5, 22, 15.55], "E");
    // dec[0] == 60.36123611111111, dec[1] == 5.370986111111111

    GeoJSON

    NB! Remember that GeoJSON stores coordinates in reversed order (longitude, latitude) which means you have to reverse the order of the coordinates returned from dms2dec().

    var geojson = {
      type: 'Point',
      coordinates: dms2dec(lat, latRef, lon, lonRef).reverse()
    };
    

    Install

    npm i dms2dec

    DownloadsWeekly Downloads

    510

    Version

    1.1.0

    License

    MIT

    Last publish

    Collaborators

    • avatar