//引入utm-converter及大檔案讀取的模組
var readLine = require('lei-stream').readLine;
var writeLine = require('lei-stream').writeLine;
var UtmConverter = require('utm-converter'); // Example using Node.js.
var converter = new UtmConverter();
let utmResult ;
// 一個幾G的文字檔案
var inputFile = './suoyou.txt';
var outputFile = 'output.txt';
var output = writeLine(outputFile);
var i=0;
const  coord=[];
readLine(inputFile).go(function (data, next) {
    row=data.split(',');
    // if(i==20519)
    // {
    //     console.log(row)
    // }
    if(row.length>5&&row[4]<180)
    {
    coord.push(parseFloat(row[4]));
    coord.push(parseFloat(row[5]));
    utmResult = converter.toUtm({coord: coord});
    row[4]=utmResult.coord.x
    row[5]=utmResult.coord.y
    output.write(row);
    i+=1;
    coord.length=0;
    }
   console.log(i)
    next();
});