Get lat and lon for each point in polygon - Google Maps API v3

Question

I found an answer for how to get the latitude and longitude for each point of the polygon here:

Polygon Drawing and Getting Coordinates with Google Map API v3

This appeared to work when I implemented it, however is no longer working, and I get the error:

"Error: TypeError: polygon.overlay.latLngs.b is undefined"

This is my code:

function polygonPoints(polygon) {
    var polygonPointsArray = [];

    $.each(polygon.overlay.latLngs.b[0].b, function(key, latlng){
            var lat = latlng.d;
            var lon = latlng.e;

            polygonPointsArray.push(lat+' '+lon); //do something with the coordinates
    });
}

Any help would be greatly appreciated.

Thanks

Matt

score 2 · Accepted Answer · answered Mar 27 '14 at 21:13

2

That failed because polygon internal structure changed which happens from time to time.

How to get latitude and longitude of polygon points is described in this google example.

answered Mar 27 '14 at 21:13

Anto Jurković

11,188
2
29
42

when did they change this? Thanks though, I figured it out using that example. – user3469947 Mar 27 '14 at 21:50
I don't know exactly but it is not so uncommon so better to use official API calls to get values. – Anto Jurković Mar 27 '14 at 22:21

score 0 · Answer 2 · answered May 20 '14 at 01:28

0

I had this problem as well - the quick fix for me was to change

$.each(polygon.overlay.latLngs.b[0].b, function(key, latlng){

to

$.each(polygon.overlay.latLngs.j[0].j, function(key, latlng){

answered May 20 '14 at 01:28

Dylan Hamilton-Foster

848
8
7

Get lat and lon for each point in polygon - Google Maps API v3

2 Answers2