Get latitude longitude from google maps itinerary

Question

I would like to know if someone can help me about this point.

I have a script based on google maps who calculate itinerary. I would like to know if it is possible to get an array of this itinerary with the latitude-longitude every 1 kilometer for example. If the itinerary is 100 kilometers long, i'll get an array with 100 datas

• (latitude,longitude, 0)
• (latitude,longitude, 1)
• (latitude,longitude, ...)
• (latitude,longitude, 99)

I need it because i would like to propose points interest near an itinerary. Example: https://roadtrippers.com/

1. You select the start of your trip
2. You select the destination of your trip
3. It suggest what you can do near your itinerary

Answer 1

The DirectionsService class will give you a response with a DirectionsResult object . This object has a property called overview_path that gives, from the docs:

An array of LatLngs representing the entire course of this route. The path is simplified in order to make it suitable in contexts where a small number of vertices is required (such as Static Maps API URLs).

You can use these to perform places searches (with the places library ) to get points of interest, etc, within a radius from each LatLng that's returned in the overview_path array.

Example:

var request = {
  origin: start_point,
  destination: end_point,
  travelMode: google.maps.TravelMode.DRIVING
};

var directionsService = new google.maps.DirectionsService();
directionsService.route(request, function(response, status) {
  if (status == google.maps.DirectionsStatus.OK) {
    var path = (response.routes[0].overview_path);
  }
});