title: Converting from arcgis esri x y coordinates to longitude and latitude in Node.js
body: <p>I'm working with a <a href="https://data.nola.gov/Geographic-Reference/NOLA-Addresses/div8-5v7i" rel="nofollow noreferrer">dataset</a> that has X Y coordinates in ArcGIS/esri format. They are akin to <code>672187.92698, 534175.72095</code>.</p>
  
  <p>I would like to convert them to longitude latitude so they are more like <code>'-90.123, 30.456'</code>.</p>
  
  <p>I've tried a couple npm packages including <a href="https://github.com/calvinmetcalf/esri2geo" rel="nofollow noreferrer">esri2geo</a> and <a href="https://npmjs.org/package/terraformer-arcgis-parser" rel="nofollow noreferrer">terraformer-arcgis-parser</a> but these seem to just spit back out the same coordinates. Although with limited documentation not sure using them correctly.</p>
  
  <p><strong>UPDATE:</strong> while not in Node.js, using external tools I was able to convert my coordinates. See <a href="https://gis.stackexchange.com/questions/64535/how-to-convert-x-y-coordinates-to-longitude-latitude-using-quantumgis">this GIS Stackexchange Question</a>.</p>
  
  <p>Would still like to know how this conversion could be done within node.js though!</p>