danswick · March 14, 2019 20:31 · amirkhan81 · Mar 23, 2017
diff --git a/README.md b/README.md
diff --git a/airports.csv b/airports.csv
diff --git a/csv2geojson.js b/csv2geojson.js
 !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var o;"undefined"!=typeof window?o=window:"undefined"!=typeof global?o=global:"undefined"!=typeof self&&(o=self),o.csv2geojson=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
 var dsv = require('dsv'),
    sexagesimal = require('sexagesimal');

 function isLat(f) { return !!f.match(/(Lat)(itude)?/gi); }
 function isLon(f) { return !!f.match(/(L)(on|ng)(gitude)?/i); }

 function keyCount(o) {
    return (typeof o == 'object') ? Object.keys(o).length : 0;
 }

 function autoDelimiter(x) {
    var delimiters = [',', ';', '\t', '|'];
    var results = [];

    delimiters.forEach(function(delimiter) {
        var res = dsv(delimiter).parse(x);
        if (res.length >= 1) {
            var count = keyCount(res[0]);
            for (var i = 0; i < res.length; i++) {
                if (keyCount(res[i]) !== count) return;
            }
            results.push({
                delimiter: delimiter,
                arity: Object.keys(res[0]).length,
            });
        }
    });

    if (results.length) {
        return results.sort(function(a, b) {
            return b.arity - a.arity;
        })[0].delimiter;
    } else {
        return null;
    }
 }

 function auto(x) {
    var delimiter = autoDelimiter(x);
    if (!delimiter) return null;
    return dsv(delimiter).parse(x);
 }

 function csv2geojson(x, options, callback) {

    if (!callback) {
        callback = options;
        options = {};
    }

    options.delimiter = options.delimiter || ',';

    var latfield = options.latfield || '',
        lonfield = options.lonfield || '',
        crs = options.crs || '';

    var features = [],
        featurecollection = { type: 'FeatureCollection', features: features };

    if (crs !== '') {
        featurecollection.crs = { type: 'name', properties: { name: crs } };
    }

    if (options.delimiter === 'auto' && typeof x == 'string') {
        options.delimiter = autoDelimiter(x);
        if (!options.delimiter) return callback({
            type: 'Error',
            message: 'Could not autodetect delimiter'
        });
    }

    var parsed = (typeof x == 'string') ? dsv(options.delimiter).parse(x) : x;

    if (!parsed.length) return callback(null, featurecollection);

    if (!latfield || !lonfield) {
        for (var f in parsed[0]) {
            if (!latfield && isLat(f)) latfield = f;
            if (!lonfield && isLon(f)) lonfield = f;
        }
        if (!latfield || !lonfield) {
            var fields = [];
            for (var k in parsed[0]) fields.push(k);
            return callback({
                type: 'Error',
                message: 'Latitude and longitude fields not present',
                data: parsed,
                fields: fields
            });
        }
    }

    var errors = [];

    for (var i = 0; i < parsed.length; i++) {
        if (parsed[i][lonfield] !== undefined &&
            parsed[i][lonfield] !== undefined) {

            var lonk = parsed[i][lonfield],
                latk = parsed[i][latfield],
                lonf, latf,
                a;

            a = sexagesimal(lonk, 'EW');
            if (a) lonk = a;
            a = sexagesimal(latk, 'NS');
            if (a) latk = a;

            lonf = parseFloat(lonk);
            latf = parseFloat(latk);

            if (isNaN(lonf) ||
                isNaN(latf)) {
                errors.push({
                    message: 'A row contained an invalid value for latitude or longitude',
                    row: parsed[i]
                });
            } else {
                if (!options.includeLatLon) {
                    delete parsed[i][lonfield];
                    delete parsed[i][latfield];
                }

                features.push({
                    type: 'Feature',
                    properties: parsed[i],
                    geometry: {
                        type: 'Point',
                        coordinates: [
                            parseFloat(lonf),
                            parseFloat(latf)
                        ]
                    }
                });
            }
        }
    }

    callback(errors.length ? errors: null, featurecollection);
 }

 function toLine(gj) {
    var features = gj.features;
    var line = {
        type: 'Feature',
        geometry: {
            type: 'LineString',
            coordinates: []
        }
    };
    for (var i = 0; i < features.length; i++) {
        line.geometry.coordinates.push(features[i].geometry.coordinates);
    }
    line.properties = features[0].properties;
    return {
        type: 'FeatureCollection',
        features: [line]
    };
 }

 function toPolygon(gj) {
    var features = gj.features;
    var poly = {
        type: 'Feature',
        geometry: {
            type: 'Polygon',
            coordinates: [[]]
        }
    };
    for (var i = 0; i < features.length; i++) {
        poly.geometry.coordinates[0].push(features[i].geometry.coordinates);
    }
    poly.properties = features[0].properties;
    return {
        type: 'FeatureCollection',
        features: [poly]
    };
 }

 module.exports = {
    isLon: isLon,
    isLat: isLat,
    csv: dsv.csv.parse,
    tsv: dsv.tsv.parse,
    dsv: dsv,
    auto: auto,
    csv2geojson: csv2geojson,
    toLine: toLine,
    toPolygon: toPolygon
 };

 },{"dsv":2,"sexagesimal":3}],2:[function(require,module,exports){


 module.exports = new Function("dsv.version = \"0.0.3\";\n\ndsv.tsv = dsv(\"\\t\");\ndsv.csv = dsv(\",\");\n\nfunction dsv(delimiter) {\n  var dsv = {},\n      reFormat = new RegExp(\"[\\\"\" + delimiter + \"\\n]\"),\n      delimiterCode = delimiter.charCodeAt(0);\n\n  dsv.parse = function(text, f) {\n    var o;\n    return dsv.parseRows(text, function(row, i) {\n      if (o) return o(row, i - 1);\n      var a = new Function(\"d\", \"return {\" + row.map(function(name, i) {\n        return JSON.stringify(name) + \": d[\" + i + \"]\";\n      }).join(\",\") + \"}\");\n      o = f ? function(row, i) { return f(a(row), i); } : a;\n    });\n  };\n\n  dsv.parseRows = function(text, f) {\n    var EOL = {}, // sentinel value for end-of-line\n        EOF = {}, // sentinel value for end-of-file\n        rows = [], // output rows\n        N = text.length,\n        I = 0, // current character index\n        n = 0, // the current line number\n        t, // the current token\n        eol; // is the current token followed by EOL?\n\n    function token() {\n      if (I >= N) return EOF; // special case: end of file\n      if (eol) return eol = false, EOL; // special case: end of line\n\n      // special case: quotes\n      var j = I;\n      if (text.charCodeAt(j) === 34) {\n        var i = j;\n        while (i++ < N) {\n          if (text.charCodeAt(i) === 34) {\n            if (text.charCodeAt(i + 1) !== 34) break;\n            ++i;\n          }\n        }\n        I = i + 2;\n        var c = text.charCodeAt(i + 1);\n        if (c === 13) {\n          eol = true;\n          if (text.charCodeAt(i + 2) === 10) ++I;\n        } else if (c === 10) {\n          eol = true;\n        }\n        return text.substring(j + 1, i).replace(/\"\"/g, \"\\\"\");\n      }\n\n      // common case: find next delimiter or newline\n      while (I < N) {\n        var c = text.charCodeAt(I++), k = 1;\n        if (c === 10) eol = true; // \\n\n        else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } // \\r|\\r\\n\n        else if (c !== delimiterCode) continue;\n        return text.substring(j, I - k);\n      }\n\n      // special case: last token before EOF\n      return text.substring(j);\n    }\n\n    while ((t = token()) !== EOF) {\n      var a = [];\n      while (t !== EOL && t !== EOF) {\n        a.push(t);\n        t = token();\n      }\n      if (f && !(a = f(a, n++))) continue;\n      rows.push(a);\n    }\n\n    return rows;\n  };\n\n  dsv.format = function(rows) {\n    if (Array.isArray(rows[0])) return dsv.formatRows(rows); // deprecated; use formatRows\n    var fieldSet = {}, fields = [];\n\n    // Compute unique fields in order of discovery.\n    rows.forEach(function(row) {\n      for (var field in row) {\n        if (!(field in fieldSet)) {\n          fields.push(fieldSet[field] = field);\n        }\n      }\n    });\n\n    return [fields.map(formatValue).join(delimiter)].concat(rows.map(function(row) {\n      return fields.map(function(field) {\n        return formatValue(row[field]);\n      }).join(delimiter);\n    })).join(\"\\n\");\n  };\n\n  dsv.formatRows = function(rows) {\n    return rows.map(formatRow).join(\"\\n\");\n  };\n\n  function formatRow(row) {\n    return row.map(formatValue).join(delimiter);\n  }\n\n  function formatValue(text) {\n    return reFormat.test(text) ? \"\\\"\" + text.replace(/\\\"/g, \"\\\"\\\"\") + \"\\\"\" : text;\n  }\n\n  return dsv;\n}\n" + ";return dsv")();

 },{}],3:[function(require,module,exports){
 module.exports = element;
 module.exports.pair = pair;
 module.exports.format = format;
 module.exports.formatPair = formatPair;

 function element(x, dims) {
    return search(x, dims).val;
 }

 function formatPair(x) {
    return format(x.lat, 'lat') + ' ' + format(x.lon, 'lon');
 }

 // Is 0 North or South?
 function format(x, dim) {
    var dirs = {
            lat: ['N', 'S'],
            lon: ['E', 'W']
        }[dim] || '',
        dir = dirs[x >= 0 ? 0 : 1],
        abs = Math.abs(x),
        whole = Math.floor(abs),
        fraction = abs - whole,
        fractionMinutes = fraction * 60,
        minutes = Math.floor(fractionMinutes),
        seconds = Math.floor((fractionMinutes - minutes) * 60);

    return whole + '° ' +
        (minutes ? minutes + "' " : '') +
        (seconds ? seconds + '" ' : '') + dir;
 }

 function search(x, dims, r) {
    if (!dims) dims = 'NSEW';
    if (typeof x !== 'string') return { val: null, regex: r };
    r = r || /[\s\,]*([\-|\—|\―]?[0-9.]+)°? *(?:([0-9.]+)['’′‘] *)?(?:([0-9.]+)(?:''|"|”|″) *)?([NSEW])?/gi;
    var m = r.exec(x);
    if (!m) return { val: null, regex: r };
    else if (m[4] && dims.indexOf(m[4]) === -1) return { val: null, regex: r };
    else return {
        val: (((m[1]) ? parseFloat(m[1]) : 0) +
            ((m[2] ? parseFloat(m[2]) / 60 : 0)) +
            ((m[3] ? parseFloat(m[3]) / 3600 : 0))) *
            ((m[4] && m[4] === 'S' || m[4] === 'W') ? -1 : 1),
        regex: r,
        raw: m[0],
        dim: m[4]
    };
 }

 function pair(x, dims) {
    x = x.trim();
    var one = search(x, dims);
    if (one.val === null) return null;
    var two = search(x, dims, one.regex);
    if (two.val === null) return null;
    // null if one/two are not contiguous.
    if (one.raw + two.raw !== x) return null;
    if (one.dim) return swapdim(one.val, two.val, one.dim);
    else return [one.val, two.val];
 }

 function swapdim(a, b, dim) {
    if (dim == 'N' || dim == 'S') return [a, b];
    if (dim == 'W' || dim == 'E') return [b, a];
 }

 },{}]},{},[1])(1)
 });
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html>
 <head>
    <meta charset='utf-8' />
    <title></title>
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
    <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.38.0/mapbox-gl.js'></script>
    <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.38.0/mapbox-gl.css' rel='stylesheet' />
    <script src='csv2geojson.js'></script>
    <style>
        body { margin:0; padding:0; }
        #map { position:absolute; top:0; bottom:0; width:100%; }
    </style>
 </head>
 <body>

 <div id='map'></div>
 <script>
 mapboxgl.accessToken = 'pk.eyJ1IjoiZGFuc3dpY2siLCJhIjoiY2l1dTUzcmgxMDJ0djJ0b2VhY2sxNXBiMyJ9.25Qs4HNEkHubd4_Awbd8Og';
 var map = new mapboxgl.Map({
    container: 'map', // container id
    style: 'mapbox://styles/mapbox/streets-v8', //stylesheet location
    center: [ -89.89709901792442, 41.29146740952274], // starting position
    zoom: 3 // starting zoom
 });

 $(document).ready(function() {
    $.ajax({
        type: "GET",
        url: './airports.csv',
        dataType: "text",
        success: function(csvData) {makeGeoJSON(csvData);}
     });
 });

 function makeGeoJSON(csvData) {
    csv2geojson.csv2geojson(csvData, {
        latfield: 'latitude',
        lonfield: 'longitude',
        delimiter: ','
    }, function(err, data) {
        map.on('load', function () {

            map.addLayer({
                'id': 'airports',
                'type': 'symbol',
                'source': {
                    'type': 'geojson',
                    'data': data
                },
                'layout': {
                    "icon-image": "marker-15"
                },
                'paint': {}
            });
        });    
    });
 }
 </script>

 </body>
 </html>
iata	title	city	state	country	latitude	longitude
00M	Thigpen	Bay Springs	MS	USA	31.95376472	-89.23450472
00R	Livingston Municipal	Livingston	TX	USA	30.68586111	-95.01792778
00V	Meadow Lake	Colorado Springs	CO	USA	38.94574889	-104.5698933
01G	Perry-Warsaw	Perry	NY	USA	42.74134667	-78.05208056
01J	Hilliard Airpark	Hilliard	FL	USA	30.6880125	-81.90594389
01M	Tishomingo County	Belmont	MS	USA	34.49166667	-88.20111111
02A	Gragg-Wade	Clanton	AL	USA	32.85048667	-86.61145333
02C	Capitol	Brookfield	WI	USA	43.08751	-88.17786917
02G	Columbiana County	East Liverpool	OH	USA	40.67331278	-80.64140639
03D	Memphis Memorial	Memphis	MO	USA	40.44725889	-92.22696056
04M	Calhoun County	Pittsboro	MS	USA	33.93011222	-89.34285194
04Y	Hawley Municipal	Hawley	MN	USA	46.88384889	-96.35089861
05C	Griffith-Merrillville	Griffith	IN	USA	41.51961917	-87.40109333
05F	Gatesville - City/County	Gatesville	TX	USA	31.42127556	-97.79696778
05U	Eureka	Eureka	NV	USA	39.60416667	-116.0050597
06A	Moton Municipal	Tuskegee	AL	USA	32.46047167	-85.68003611
06C	Schaumburg	Chicago/Schaumburg	IL	USA	41.98934083	-88.10124278
06D	Rolla Municipal	Rolla	ND	USA	48.88434111	-99.62087694
06M	Eupora Municipal	Eupora	MS	USA	33.53456583	-89.31256917
06N	Randall	Middletown	NY	USA	41.43156583	-74.39191722
06U	Jackpot/Hayden	Jackpot	NV	USA	41.97602222	-114.6580911
07C	Dekalb County	Auburn	IN	USA	41.30716667	-85.06433333
07F	Gladewater Municipal	Gladewater	TX	USA	32.52883861	-94.97174556
07G	Fitch H Beach	Charlotte	MI	USA	42.57450861	-84.81143139
07K	Central City Municipal	Central City	NE	USA	41.11668056	-98.05033639
08A	Wetumpka Municipal	Wetumpka	AL	USA	32.52943944	-86.32822139
08D	Stanley Municipal	Stanley	ND	USA	48.30079861	-102.4063514
08K	Harvard State	Harvard	NE	USA	40.65138528	-98.07978667
08M	Carthage-Leake County	Carthage	MS	USA	32.76124611	-89.53007139
09A	Butler-Choctaw County	Butler	AL	USA	32.11931306	-88.1274625
09J	Jekyll Island	Jekyll Island	GA	USA	31.07447222	-81.42777778
09K	Sargent Municipal	Sargent	NE	USA	41.63695083	-99.34038139
09M	Charleston Municipal	Charleston	MS	USA	33.99150222	-90.078145
09W	South Capitol Street	Washington	DC	USA	38.86872333	-77.00747583
0A3	Smithville Municipal	Smithville	TN	USA	35.98531194	-85.80931806
0A8	Bibb County	Centreville	AL	USA	32.93679056	-87.08888306
0A9	Elizabethton Municipal	Elizabethton	TN	USA	36.37094306	-82.17374111
0AK	Pilot Station	Pilot Station	AK	USA	61.93396417	-162.8929358
0B1	Col. Dyke	Bethel	ME	USA	44.42506444	-70.80784778
0B4	Hartington Municipal	Hartington	NE	USA	42.60355556	-97.25263889
0B5	Turners Falls	Montague	MA	USA	42.59136361	-72.52275472
0B7	Warren-Sugar Bush	Warren	VT	USA	44.11672722	-72.82705806
0B8	Elizabeth	Fishers Island	NY	USA	41.25130806	-72.03161139
0C0	Dacy	Chicago/Harvard	IL	USA	42.40418556	-88.63343222
0C4	Pender Municipal	Pender	NE	USA	42.11388722	-96.72892556
0D1	South Haven Municipal	South Haven	MI	USA	42.35083333	-86.25613889
0D8	Gettysburg Municipal	Gettysburg	SD	USA	44.98730556	-99.9535
0E0	Moriarty	Moriarty	NM	USA	34.98560639	-106.0094661
0E8	Crownpoint	Crownpoint	NM	USA	35.71765889	-108.2015961
0F2	Bowie Municipal	Bowie	TX	USA	33.60166667	-97.77556
0F4	Loup City Municipal	Loup City	NE	USA	41.29028694	-98.99064278
0F7	Fountainhead Lodge Airpark	Eufaula	OK	USA	35.38898833	-95.60165111
0F8	William R Pogue Municipal	Sand Springs	OK	USA	36.17528	-96.15181028
0F9	Tishomingo Airpark	Tishomingo	OK	USA	34.19592833	-96.67555694
0G0	North Buffalo Suburban	Lockport	NY	USA	43.10318389	-78.70334583
0G3	Tecumseh Municipal	Tecumseh	NE	USA	40.39944417	-96.17139694
0G6	Williams County	Bryan	OH	USA	41.46736111	-84.50655556
0G7	Finger Lakes Regional	Seneca Falls	NY	USA	42.88062278	-76.78162028
0H1	Trego Wakeeney	Wakeeney	KS	USA	39.0044525	-99.89289917
0I8	Cynthiana-Harrison County	Cynthiana	KY	USA	38.36674167	-84.28410056
0J0	Abbeville Municipal	Abbeville	AL	USA	31.60016778	-85.23882222
0J4	Florala Municipal	Florala	AL	USA	31.04247361	-86.31156111
0J6	Headland Municipal	Headland	AL	USA	31.364895	-85.30965556
0K7	Humboldt Municipal	Humboldt	IA	USA	42.7360825	-94.24524167
0L5	Goldfield	Goldfield	NV	USA	37.71798833	-117.2384119
0L7	Jean	Jean	NV	USA	35.76827222	-115.3296378
0L9	Echo Bay	Overton	NV	USA	36.31108972	-114.4638672
0M0	Dumas Municipal	Dumas	AR	USA	33.8845475	-91.53429111
0M1	Scott	Parsons	TN	USA	35.63778	-88.127995
0M4	Benton County	Camden	TN	USA	36.01122694	-88.12328833
0M5	Humphreys County	Waverly	TN	USA	36.11659972	-87.73815889
0M6	Panola County	Batesville	MS	USA	34.36677444	-89.90008917
0M8	Byerley	Lake Providence	LA	USA	32.82587917	-91.187665
0O3	Calaveras Co-Maury Rasmussen	San Andreas	CA	USA	38.14611639	-120.6481733
0O4	Corning Municipal	Corning	CA	USA	39.94376806	-122.1713781
0O5	University	Davis	CA	USA	38.53146222	-121.7864906
0Q5	Shelter Cove	Shelter Cove	CA	USA	40.02764333	-124.0733639
0Q6	Shingletown	Shingletown	CA	USA	40.52210111	-121.8177683
0R0	Columbia-Marion County	Columbia	MS	USA	31.29700806	-89.81282944
0R1	Atmore Municipal	Atmore	AL	USA	31.01621528	-87.44675972
0R3	Abbeville Chris Crusta Memorial	Abbeville	LA	USA	29.97576083	-92.08415167
0R4	Concordia Parish	Vidalia	LA	USA	31.56683278	-91.50011889
0R5	David G Joyce	Winnfield	LA	USA	31.96366222	-92.66026056
0R7	Red River	Coushatta	LA	USA	31.99071694	-93.30739306
0S7	Dorothy Scott	Oroville	WA	USA	48.958965	-119.4119622
0S9	Jefferson County International	Port Townsend	WA	USA	48.04981361	-122.8012792
0V2	Harriet Alexander	Salida	CO	USA	38.53916389	-106.0458483
0V3	Pioneer Village	Minden	NE	USA	40.5149125	-98.94565083
0V4	Brookneal/Campbell County	Brookneal	VA	USA	37.14172222	-79.01638889
0V6	Mission Sioux	Mission	SD	USA	43.30694778	-100.6281936
0V7	Kayenta	Kayenta	AZ	USA	36.70972139	-110.2367978
10C	Galt	Chicago/Greenwood/Wonderlake	IL	USA	42.40266472	-88.37588917
10D	Winsted Municipal	Winsted	MN	USA	44.94996278	-94.0669175
10G	Holmes County	Millersburg	OH	USA	40.53716667	-81.95436111
10N	Wallkill	Wallkill	NY	USA	41.62787111	-74.13375583
10U	Owyhee	Owyhee	NV	USA	41.95323306	-116.1876014
11A	Clayton Municipal	Clayton	AL	USA	31.88329917	-85.48491361
11D	Clarion Cty	Clarion	PA	USA	41.22581222	-79.44098972
11IS	Schaumburg Heliport	Chicago/Schaumburg	IL	USA	42.04808278	-88.05257194
11J	Early County	Blakely	GA	USA	31.39698611	-84.89525694
11R	Brenham Municipal	Brenham	TX	USA	30.219	-96.37427778
12C	Rochelle Municipal	Rochelle	IL	USA	41.89300139	-89.07829
12D	Tower Municipal	Tower	MN	USA	47.81833333	-92.29166667
12J	Brewton Municipal	Brewton	AL	USA	31.05126306	-87.06796833
12K	Superior Municipal	Superior	NE	USA	40.04636111	-98.06011111
12Y	Le Sueur Municipal	Le Sueur	MN	USA	44.43746472	-93.91274083
13C	Lakeview	Lakeview	MI	USA	43.45213722	-85.26480333
13K	Eureka Municipal	Eureka	KS	USA	37.8515825	-96.29169806
13N	Trinca	Andover	NJ	USA	40.96676444	-74.78016556
14J	Carl Folsom	Elba	AL	USA	31.40988861	-86.08883583
14M	Hollandale Municipal	Hollandale	MS	USA	33.18262167	-90.83065444
14Y	Todd Field	Long Prairie	MN	USA	45.89857556	-94.87391
15F	Haskell Municipal	Haskell	TX	USA	33.19155556	-99.71793056
15J	Cook County	Adel	GA	USA	31.13780556	-83.45308333
15M	Luka	Luka	MS	USA	34.7723125	-88.16587444
15Z	McCarthy 2	McCarthy	AK	USA	61.43706083	-142.9037372
16A	Nunapitchuk	Nunapitchuk	AK	USA	60.90582833	-162.4391158
16G	Seneca County	Tiffin	OH	USA	41.09405556	-83.2125
16J	Dawson Municipal	Dawson	GA	USA	31.74328472	-84.419285
16S	Myrtle Creek Municipal	Myrtle Creek	OR	USA	42.99845056	-123.3095092
17G	Port Bucyrus-Crawford County	Bucyrus	OH	USA	40.78141667	-82.97469444
17J	Donalsonville Municipal	Donalsonville	GA	USA	31.00694444	-84.87761111
17K	Boise City	Boise City	OK	USA	36.77430028	-102.5104364
17M	Magee Municipal	Magee	MS	USA	31.86127139	-89.80285361
17N	Cross Keys	Cross Keys	NJ	USA	39.70547583	-75.03300306
17Z	Manokotak	Manokotak	AK	USA	58.98896583	-159.0499739
18A	Franklin County	Canon	GA	USA	34.34010472	-83.13348333
18I	McCreary County	Pine Knot	KY	USA	36.69591306	-84.39160389
19A	Jackson County	Jefferson	GA	USA	34.17402472	-83.56066528
19M	C A Moore	Lexington	MS	USA	33.12546111	-90.02555694
19N	Camden	Berlin	NJ	USA	39.77842056	-74.94780389
19P	Port Protection SPB	Port Protection	AK	USA	56.32880417	-133.6100844
1A3	Martin Campbell	Copperhill	TN	USA	35.01619111	-84.34631083
1A5	Macon County	Franklin	NC	USA	35.222595	-83.41904389
1A6	Middlesboro-Bell County	Middlesboro	KY	USA	36.6106375	-83.73741611
1A7	Jackson County	Gainesboro	TN	USA	36.39728139	-85.64164278
1A9	Autauga County	Prattville	AL	USA	32.438775	-86.51044778
1B0	Dexter Regional	Dexter	ME	USA	45.00839444	-69.23976722
1B1	Columbia Cty	Hudson	NY	USA	42.29130028	-73.71031944
1B3	Fair Haven	Fair Haven	VT	USA	43.61534389	-73.27455556
1B9	Mansfield Municipal	Mansfield	MA	USA	42.00013306	-71.19677139
1C5	Clow	Chicago/Plainfield	IL	USA	41.69597444	-88.12923056
1D1	Milbank Municipal	Milbank	SD	USA	45.23053806	-96.56596556
1D2	Canton -Plymouth - Mettetal	Plymouth	MI	USA	42.35003667	-83.45826833
1D3	Platte Municipal	Platte	SD	USA	43.40332833	-98.82952972
1D6	Hector Municipal	Hector	MN	USA	44.73107278	-94.71471333
1D7	Webster Municipal	Webster	SD	USA	45.29329111	-97.51369889
1D8	Redfield Municipal	Redfield	SD	USA	44.86247611	-98.52953972
1F0	Downtown Ardmore	Ardmore	OK	USA	34.14698917	-97.12265194
1F1	Lake Murray State Park	Overbrook	OK	USA	34.07509694	-97.10667917
1F4	Madill Municipal	Madill	OK	USA	34.14040194	-96.81203222
1F9	Bridgeport Municipal	Bridgeport	TX	USA	33.17533333	-97.82838889
1G0	Wood County	Bowling Green	OH	USA	41.391	-83.63013889
1G3	Kent State University	Kent	OH	USA	41.15186167	-81.41658306
1G4	Grand Canyon West	Peach Springs	AZ	USA	35.99221	-113.8166164
1G5	Freedom	Medina	OH	USA	41.13144444	-81.76491667
1G6	Michael	Cicero	NY	USA	43.18166667	-76.12777778
1H0	Creve Coeur	St Louis	MO	USA	38.72752	-90.50830417
1H2	Effingham County Memorial	Effingham	IL	USA	39.07045083	-88.53351972
1H3	Linn State Tech. College	Linn	MO	USA	38.47149444	-91.81531667
1H8	Casey Municipal	Casey	IL	USA	39.30250917	-88.00406194
1I5	Freehold	Freehold	NY	USA	42.36425	-74.06596806
1I9	Delphi Municipal	Delphi	IN	USA	40.54281417	-86.68167194
1J0	Tri-County	Bonifay	FL	USA	30.84577778	-85.60138889
1K2	Lindsay Municipal	Lindsay	OK	USA	34.85007333	-97.58642028
1K4	David J. Perry	Goldsby	OK	USA	35.1550675	-97.47039389
1K5	Waynoka Municipal	Waynoka	OK	USA	36.56670028	-98.85231333
1K9	Satanta Municipal	Satanta	KS	USA	37.45419111	-100.9921119
1L0	St. John the Baptist Parish	Reserve	LA	USA	30.08720833	-90.58266528
1L1	Lincoln Co	Panaca	NV	USA	37.78746444	-114.4216567
1L7	Escalante Municipal	Escalante	UT	USA	37.74532639	-111.5701653
1L9	Parowan	Parowan	UT	USA	37.85969694	-112.816055
1M1	North Little Rock Municipal	No Lit Rock	AR	USA	34.83398056	-92.25792778
1M2	Belzoni Municipal	Belzoni	MS	USA	33.14518056	-90.51528472
1M4	Posey	Haleyville	AL	USA	34.28034806	-87.60044139
1M5	Portland Municipal	Portland	TN	USA	36.59287528	-86.47691028
1M7	Fulton	Fulton	KY	USA	36.52589417	-88.91561611
1MO	Mountain Grove Memorial	Mountain Grove	MO	USA	37.12071889	-92.311245
1N2	Spadaro	East Moriches	NY	USA	40.82787639	-72.74871083
1N4	Woodbine Muni	Woodbine	NJ	USA	39.21915	-74.794765
1N7	Blairstown	Blairstown	NJ	USA	40.97114556	-74.99747556
1N9	Allentown Queen City Muni	Allentown	PA	USA	40.57027778	-75.48830556
1ND3	Hamry	Kindred	ND	USA	46.6485775	-97.00564306
1O1	Grandfield Municipal	Grandfield	OK	USA	34.23758944	-98.74200917
1O2	Lampson	Lakeport	CA	USA	38.99017472	-122.8997175
1O3	Lodi	Lodi	CA	USA	38.20241667	-121.2684167
1O4	Thomas Municipal	Thomas	OK	USA	35.73338222	-98.73063833
1O6	Dunsmuir Municipal-Mott	Dunsmuir	CA	USA	41.26320889	-122.2719528
1R1	Jena	Jena	LA	USA	31.671005	-92.15846722
1R7	Brookhaven-Lincoln County	Brookhaven	MS	USA	31.6058475	-90.40931583
1R8	Bay Minette Municipal	Bay Minette	AL	USA	30.87046278	-87.81738167
1S0	Pierce County	Puyallup	WA	USA	47.10391667	-122.2871944
1S3	Tillitt	Forsyth	MT	USA	46.27110639	-106.6239206
1S5	Sunnyside Municipal	Sunnyside	WA	USA	46.32763139	-119.9705964
1S6	Priest River Muni	Priest River	ID	USA	48.19018611	-116.9093644
1U7	Bear Lake County	Paris	ID	USA	42.24714972	-111.33826
1V0	Navajo State Park	Navajo Dam	NM	USA	36.80833833	-107.6514444
1V2	Grant County	Hyannis	NE	USA	42.00942944	-101.7693439
	!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var o;"undefined"!=typeof window?o=window:"undefined"!=typeof global?o=global:"undefined"!=typeof self&&(o=self),o.csv2geojson=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
	var dsv = require('dsv'),
	sexagesimal = require('sexagesimal');

	function isLat(f) { return !!f.match(/(Lat)(itude)?/gi); }
	function isLon(f) { return !!f.match(/(L)(on\|ng)(gitude)?/i); }

	function keyCount(o) {
	return (typeof o == 'object') ? Object.keys(o).length : 0;
	}

	function autoDelimiter(x) {
	var delimiters = [',', ';', '\t', '\|'];
	var results = [];

	delimiters.forEach(function(delimiter) {
	var res = dsv(delimiter).parse(x);
	if (res.length >= 1) {
	var count = keyCount(res[0]);
	for (var i = 0; i < res.length; i++) {
	if (keyCount(res[i]) !== count) return;
	}
	results.push({
	delimiter: delimiter,
	arity: Object.keys(res[0]).length,
	});
	}
	});

	if (results.length) {
	return results.sort(function(a, b) {
	return b.arity - a.arity;
	})[0].delimiter;
	} else {
	return null;
	}
	}

	function auto(x) {
	var delimiter = autoDelimiter(x);
	if (!delimiter) return null;
	return dsv(delimiter).parse(x);
	}

	function csv2geojson(x, options, callback) {

	if (!callback) {
	callback = options;
	options = {};
	}

	options.delimiter = options.delimiter \|\| ',';

	var latfield = options.latfield \|\| '',
	lonfield = options.lonfield \|\| '',
	crs = options.crs \|\| '';

	var features = [],
	featurecollection = { type: 'FeatureCollection', features: features };

	if (crs !== '') {
	featurecollection.crs = { type: 'name', properties: { name: crs } };
	}

	if (options.delimiter === 'auto' && typeof x == 'string') {
	options.delimiter = autoDelimiter(x);
	if (!options.delimiter) return callback({
	type: 'Error',
	message: 'Could not autodetect delimiter'
	});
	}

	var parsed = (typeof x == 'string') ? dsv(options.delimiter).parse(x) : x;

	if (!parsed.length) return callback(null, featurecollection);

	if (!latfield \|\| !lonfield) {
	for (var f in parsed[0]) {
	if (!latfield && isLat(f)) latfield = f;
	if (!lonfield && isLon(f)) lonfield = f;
	}
	if (!latfield \|\| !lonfield) {
	var fields = [];
	for (var k in parsed[0]) fields.push(k);
	return callback({
	type: 'Error',
	message: 'Latitude and longitude fields not present',
	data: parsed,
	fields: fields
	});
	}
	}

	var errors = [];

	for (var i = 0; i < parsed.length; i++) {
	if (parsed[i][lonfield] !== undefined &&
	parsed[i][lonfield] !== undefined) {

	var lonk = parsed[i][lonfield],
	latk = parsed[i][latfield],
	lonf, latf,
	a;

	a = sexagesimal(lonk, 'EW');
	if (a) lonk = a;
	a = sexagesimal(latk, 'NS');
	if (a) latk = a;

	lonf = parseFloat(lonk);
	latf = parseFloat(latk);

	if (isNaN(lonf) \|\|
	isNaN(latf)) {
	errors.push({
	message: 'A row contained an invalid value for latitude or longitude',
	row: parsed[i]
	});
	} else {
	if (!options.includeLatLon) {
	delete parsed[i][lonfield];
	delete parsed[i][latfield];
	}

	features.push({
	type: 'Feature',
	properties: parsed[i],
	geometry: {
	type: 'Point',
	coordinates: [
	parseFloat(lonf),
	parseFloat(latf)
	]
	}
	});
	}
	}
	}

	callback(errors.length ? errors: null, featurecollection);
	}

	function toLine(gj) {
	var features = gj.features;
	var line = {
	type: 'Feature',
	geometry: {
	type: 'LineString',
	coordinates: []
	}
	};
	for (var i = 0; i < features.length; i++) {
	line.geometry.coordinates.push(features[i].geometry.coordinates);
	}
	line.properties = features[0].properties;
	return {
	type: 'FeatureCollection',
	features: [line]
	};
	}

	function toPolygon(gj) {
	var features = gj.features;
	var poly = {
	type: 'Feature',
	geometry: {
	type: 'Polygon',
	coordinates: [[]]
	}
	};
	for (var i = 0; i < features.length; i++) {
	poly.geometry.coordinates[0].push(features[i].geometry.coordinates);
	}
	poly.properties = features[0].properties;
	return {
	type: 'FeatureCollection',
	features: [poly]
	};
	}

	module.exports = {
	isLon: isLon,
	isLat: isLat,
	csv: dsv.csv.parse,
	tsv: dsv.tsv.parse,
	dsv: dsv,
	auto: auto,
	csv2geojson: csv2geojson,
	toLine: toLine,
	toPolygon: toPolygon
	};

	},{"dsv":2,"sexagesimal":3}],2:[function(require,module,exports){


	module.exports = new Function("dsv.version = \"0.0.3\";\n\ndsv.tsv = dsv(\"\\t\");\ndsv.csv = dsv(\",\");\n\nfunction dsv(delimiter) {\n var dsv = {},\n reFormat = new RegExp(\"[\\\"\" + delimiter + \"\\n]\"),\n delimiterCode = delimiter.charCodeAt(0);\n\n dsv.parse = function(text, f) {\n var o;\n return dsv.parseRows(text, function(row, i) {\n if (o) return o(row, i - 1);\n var a = new Function(\"d\", \"return {\" + row.map(function(name, i) {\n return JSON.stringify(name) + \": d[\" + i + \"]\";\n }).join(\",\") + \"}\");\n o = f ? function(row, i) { return f(a(row), i); } : a;\n });\n };\n\n dsv.parseRows = function(text, f) {\n var EOL = {}, // sentinel value for end-of-line\n EOF = {}, // sentinel value for end-of-file\n rows = [], // output rows\n N = text.length,\n I = 0, // current character index\n n = 0, // the current line number\n t, // the current token\n eol; // is the current token followed by EOL?\n\n function token() {\n if (I >= N) return EOF; // special case: end of file\n if (eol) return eol = false, EOL; // special case: end of line\n\n // special case: quotes\n var j = I;\n if (text.charCodeAt(j) === 34) {\n var i = j;\n while (i++ < N) {\n if (text.charCodeAt(i) === 34) {\n if (text.charCodeAt(i + 1) !== 34) break;\n ++i;\n }\n }\n I = i + 2;\n var c = text.charCodeAt(i + 1);\n if (c === 13) {\n eol = true;\n if (text.charCodeAt(i + 2) === 10) ++I;\n } else if (c === 10) {\n eol = true;\n }\n return text.substring(j + 1, i).replace(/\"\"/g, \"\\\"\");\n }\n\n // common case: find next delimiter or newline\n while (I < N) {\n var c = text.charCodeAt(I++), k = 1;\n if (c === 10) eol = true; // \\n\n else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } // \\r\|\\r\\n\n else if (c !== delimiterCode) continue;\n return text.substring(j, I - k);\n }\n\n // special case: last token before EOF\n return text.substring(j);\n }\n\n while ((t = token()) !== EOF) {\n var a = [];\n while (t !== EOL && t !== EOF) {\n a.push(t);\n t = token();\n }\n if (f && !(a = f(a, n++))) continue;\n rows.push(a);\n }\n\n return rows;\n };\n\n dsv.format = function(rows) {\n if (Array.isArray(rows[0])) return dsv.formatRows(rows); // deprecated; use formatRows\n var fieldSet = {}, fields = [];\n\n // Compute unique fields in order of discovery.\n rows.forEach(function(row) {\n for (var field in row) {\n if (!(field in fieldSet)) {\n fields.push(fieldSet[field] = field);\n }\n }\n });\n\n return [fields.map(formatValue).join(delimiter)].concat(rows.map(function(row) {\n return fields.map(function(field) {\n return formatValue(row[field]);\n }).join(delimiter);\n })).join(\"\\n\");\n };\n\n dsv.formatRows = function(rows) {\n return rows.map(formatRow).join(\"\\n\");\n };\n\n function formatRow(row) {\n return row.map(formatValue).join(delimiter);\n }\n\n function formatValue(text) {\n return reFormat.test(text) ? \"\\\"\" + text.replace(/\\\"/g, \"\\\"\\\"\") + \"\\\"\" : text;\n }\n\n return dsv;\n}\n" + ";return dsv")();

	},{}],3:[function(require,module,exports){
	module.exports = element;
	module.exports.pair = pair;
	module.exports.format = format;
	module.exports.formatPair = formatPair;

	function element(x, dims) {
	return search(x, dims).val;
	}

	function formatPair(x) {
	return format(x.lat, 'lat') + ' ' + format(x.lon, 'lon');
	}

	// Is 0 North or South?
	function format(x, dim) {
	var dirs = {
	lat: ['N', 'S'],
	lon: ['E', 'W']
	}[dim] \|\| '',
	dir = dirs[x >= 0 ? 0 : 1],
	abs = Math.abs(x),
	whole = Math.floor(abs),
	fraction = abs - whole,
	fractionMinutes = fraction * 60,
	minutes = Math.floor(fractionMinutes),
	seconds = Math.floor((fractionMinutes - minutes) * 60);

	return whole + '° ' +
	(minutes ? minutes + "' " : '') +
	(seconds ? seconds + '" ' : '') + dir;
	}

	function search(x, dims, r) {
	if (!dims) dims = 'NSEW';
	if (typeof x !== 'string') return { val: null, regex: r };
	r = r \|\| /[\s\,]([\-\|\—\|\―]?[0-9.]+)°? (?:([0-9.]+)['’′‘] )?(?:([0-9.]+)(?:''\|"\|”\|″) )?([NSEW])?/gi;
	var m = r.exec(x);
	if (!m) return { val: null, regex: r };
	else if (m[4] && dims.indexOf(m[4]) === -1) return { val: null, regex: r };
	else return {
	val: (((m[1]) ? parseFloat(m[1]) : 0) +
	((m[2] ? parseFloat(m[2]) / 60 : 0)) +
	((m[3] ? parseFloat(m[3]) / 3600 : 0))) *
	((m[4] && m[4] === 'S' \|\| m[4] === 'W') ? -1 : 1),
	regex: r,
	raw: m[0],
	dim: m[4]
	};
	}

	function pair(x, dims) {
	x = x.trim();
	var one = search(x, dims);
	if (one.val === null) return null;
	var two = search(x, dims, one.regex);
	if (two.val === null) return null;
	// null if one/two are not contiguous.
	if (one.raw + two.raw !== x) return null;
	if (one.dim) return swapdim(one.val, two.val, one.dim);
	else return [one.val, two.val];
	}

	function swapdim(a, b, dim) {
	if (dim == 'N' \|\| dim == 'S') return [a, b];
	if (dim == 'W' \|\| dim == 'E') return [b, a];
	}

	},{}]},{},[1])(1)
	});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset='utf-8' />
	<title></title>
	<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
	<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.38.0/mapbox-gl.js'></script>
	<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.38.0/mapbox-gl.css' rel='stylesheet' />
	<script src='csv2geojson.js'></script>
	<style>
	body { margin:0; padding:0; }
	#map { position:absolute; top:0; bottom:0; width:100%; }
	</style>
	</head>
	<body>

	<div id='map'></div>
	<script>
	mapboxgl.accessToken = 'pk.eyJ1IjoiZGFuc3dpY2siLCJhIjoiY2l1dTUzcmgxMDJ0djJ0b2VhY2sxNXBiMyJ9.25Qs4HNEkHubd4_Awbd8Og';
	var map = new mapboxgl.Map({
	container: 'map', // container id
	style: 'mapbox://styles/mapbox/streets-v8', //stylesheet location
	center: [ -89.89709901792442, 41.29146740952274], // starting position
	zoom: 3 // starting zoom
	});

	$(document).ready(function() {
	$.ajax({
	type: "GET",
	url: './airports.csv',
	dataType: "text",
	success: function(csvData) {makeGeoJSON(csvData);}
	});
	});

	function makeGeoJSON(csvData) {
	csv2geojson.csv2geojson(csvData, {
	latfield: 'latitude',
	lonfield: 'longitude',
	delimiter: ','
	}, function(err, data) {
	map.on('load', function () {

	map.addLayer({
	'id': 'airports',
	'type': 'symbol',
	'source': {
	'type': 'geojson',
	'data': data
	},
	'layout': {
	"icon-image": "marker-15"
	},
	'paint': {}
	});
	});
	});
	}
	</script>

	</body>
	</html>