Get elevation information

Similar to automating weather collection, data events allow you to tap into any API that supports point coordinates. This example uses the MapQuest Open Elevation API to determine the elevation at the point you are collecting data. It assumes you have a numeric (integer) field called mq_elevation.

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function getElevation() {
  var options = {
    url: 'https://open.mapquestapi.com/elevation/v1/profile',
    qs: {
      key: 'your_api_key',
      shapeFormat: 'raw',
      latLngCollection: LATITUDE() + ',' + LONGITUDE()
    }
  };

  REQUEST(options, function(error, response, body) {
    if (error) {
      ALERT('Error with request: ' + INSPECT(error));
    } else {
      elevation = JSON.parse(body);
      SETVALUE('mq_elevation', elevation.elevationProfile[0].height);
    }
  });
}

ON('change-geometry', getElevation);

Updated about 1 year ago