javascript - D3 GeoJson Choropleth and different data files loading depending on onClick Button -


i want create choropleth showing data of production of different animals. depending on onclick-event button want load different files of data create colorpleth. have 4 different json-files sheep, pig, chick , cows. first i'm loading map data in europe.json , data chick.json/cow.json/sheep.json/pig.json. in different for-loops i'm summing numbers total years per country. tried different approaches create 4 buttons , depending on clicks load 1 of 4 json data files , read stackoverflow questions similar questions project bit different because of choropleth.

the jsons data this:

[{ "2005": 0, "2006": 0, "2007": 0, "2008": 0, "2009": 0, "2010": 0, "2011": 0, "2012": 0, "2013": 0, "2014": 0, "2015": 3.26, "2016": 2.27, "geo": "al", "fleischart": "sheep" }, {  "2005": 7.15, "2006": 0, "2007": 0, "2008": 8.22, "2009": 7.87, "2010": 8.03, "2011": 8.35, "2012": 8.37, "2013": 8.45, "2014": 7.98, "2015": 7.77, "2016": 7.3, "geo": "at", "fleischart": "sheep"  }, { ....

different objects different countries. , code looks this:

<div id="container">  </div>  <script type="text/javascript"> var w = 800; var h = 600; var projection = d3.geo.mercator()     .center([ 13, 52 ])     .translate([ w/2, h/2 ])     .scale([ w/1.5 ]);   var path = d3.geo.path()     .projection(projection);  var svg = d3.select("#container")     .append("svg")     .attr("width", w)     .attr("height", h);   d3.json("europe.json", function (json) {     console.log(json);      d3.json("chick.json", function (error, data) {          if (error) {             console.log(error);         } else {             console.log(data);             dataset = data;         }          var mengeprojahrproland = new array();         var mengedurchschnittproland = new array;         (var n = 0; n < 36; n++) {             var landname = object(data[n])["geo"];             var total = 0;             mengeprojahrproland.push(object.values(data[n]));              (var q = 0; q < 12; q++) {                 total += object(mengeprojahrproland[n])[q];             }                  mengedurchschnittproland.push(parsefloat(total).tofixed(2));              var landmengeobjekt = [{land: 0, anzahl: 0}];             var laender = [];             var laendermenge = [];              (var m = 0; m < 36; m++) {                 var landname = object(data[m])["geo"];                 var durchschnittmengeprojahr = mengedurchschnittproland[m];                 laender.push(landname);                 laendermenge.push(durchschnittmengeprojahr);                 landmengeobjekt.push({land: landname, anzahl: durchschnittmengeprojahr});             }         }          (var = 0; < laender.length; a++) {             var datastate = laender[a];             var datavalue = parsefloat(laendermenge[a]);             var color = d3.scale.threshold()                 .domain([                     1, 2,                     5, 10, 25, 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 1000, 1500, 2000, 2500, 3000, 3500, 4000, 4500, 5000, 6000, 7000, 10000, 11000, 15000, 17500, 18000, 19000, 22000                 ])                 .range([                     "#2438ff", "#2a36f8", "#3035f1", "#3633ea", "#3c32e3", "#4230dc", "#482fd5", "#4e2ece", "#542cc7", "#5a2bc0", "#6029b9", "#6628b2", "#6d27ab", "#7325a4", "#79249d", "#7f2296", "#85218f", "#8b1f88", "#911e82", "#971d7b", "#9d1b74", "#a31a6d", "#a91866", "#af175f", "#b61658", "#bc1451", "#c2134a", "#c81143", "#ce103c", "#d40e35", "#da0d2e", "#e00c27", "#e60a20", "#ec0919", "#f20712", "#f8060b", "#ff0505"                 ]);              (var j = 0; j < json.features.length; j++) {                 var jsonstate = json.features[j].properties.wb_a2;                 if (jsonstate == datastate) {                     json.features[j].properties.value = datavalue;                      break;                 }             }         }          svg.selectall("path")             .data(json.features)             .enter()             .append("path")             .attr("d", path)             .style("fill", function (d) {                 var value = d.properties.value;                 if (value) {                     return color(value);                 } else {                     return "darkgray";                 }             });     }); });

this current choropleth chick.json data: insahne.com/colorpleth/indexchick.html how can achieve load different files depending on user's click?


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