put-building-data-into-neighborhood.js

'use strict'

var fs = require('fs');
var jsonfile = require('jsonfile');

fs.readFile(__dirname + '/data/seoul-beobjeongdong.geojson', function(err, data) {
  const dongs = JSON.parse(data);


  fs.readFile(__dirname + '/data/buildings.json', function(err2, data2) {
    const numbers = JSON.parse(data2);
    const newFeatures = [];
    for(const n in numbers) {
      for(const feature of dongs.features) {
        if (feature.properties.EMD_KOR_NM == numbers[n].kr_name) {
          var trimmedDongCode = n.substring(0, n.length-2);
          if(feature.properties.EMD_CD == trimmedDongCode) {
            const newFeature = {}
            newFeature.properties = {};
            newFeature.type ='Feature';
            newFeature.properties.en_name = feature.properties.EMD_ENG_NM;
            newFeature.properties.kr_name = feature.properties.EMD_KOR_NM;
            newFeature.geometry = feature.geometry;
            newFeature.properties.average = numbers[n].ave;
            newFeature.properties.numberWData = numbers[n].total;
            newFeature.properties.numberWOdata = numbers[n].woData;
            newFeatures.push(newFeature);
            break;
          } else {
            console.log(feature.properties.EMD_KOR_NM)
            console.log('what!');
          }
        }


      }
    }
    const newGeojson = {
      type:"FeatureCollection",
      features: newFeatures
    };
    writeFile(newGeojson);
  });
});


function writeFile(obj) {
  console.log('write  file');
  jsonfile.writeFileSync(__dirname + '/data/test5.geojson', obj);
}