How to put a infowindow on polyline in Google Maps v3?

Question

I want to know how to show infowindow on polyline in using Google Maps Api V3? and to appear in the middle of the polyline ?!

Answer 1

Firstly you will need to calculate the middle/center of the polyline. This has been discussed and answered here; https://stackoverflow.com/a/9090409/787921

Then you will have to open the infowindow;

var infowindow = new google.maps.InfoWindow({
             content: "infowindow text content"});
infowindow.setPosition(midLatLng);
infowindow.open(map);