KML to GeoJSON

parser.coffee

fs = require 'fs'
xml2js = require('xml2js').parseString

fs.readFile "#{__dirname}/history.kml", (err, data) ->
  xml2js data, (err, result) ->
    doc = result.kml.Document[0].Placemark[0]['gx:Track'][0]

    points =
      type: "Feature"
      properties: {}
      geometry:
        type: "MultiLineString"
        coordinates: [(coord.split(' ').slice(0, 2).map(parseFloat) for coord in doc['gx:coord'])]

    fs.writeFile "#{__dirname}/public/points.json", JSON.stringify(points), (err, data) ->
      console.log 'Done'