Creating an encoded polygon for google maps in PHP

Question

I'm just wondering how I can convert points into an encoded polygon for static google maps.

I will be retrieving the data from MySQL as a multipolygon, however I can rearrange the data as needed.

I simply need a good php script that can encode the polygon.

I realize this may seem like a duplicate question, but I have searched everywhere and cannot find anything. There are multiple scripts on-line however there is no documentation as how the array of points is to be formatted and ect.

These include

• https://code.google.com/p/opencaching-pl/source/browse/trunk/lib/class.polylineEncoder.php?r=4122

OR

• https://github.com/jfsimon/GMapBundle/blob/master/Encoder/PolylineEncoder.php

Thanks

Answer 1

the definitive reference: http://facstaff.unca.edu/mcmcclur/GoogleMaps/EncodePolyline/

With a link to a PHP implementationby Jim Hribar

you asked: How do I format it. e.g array(array(xcoord,ycoord),array(xcoord,ycoord));

Looking at the source of both the examples you reference, I see something like this: (from the second):

 $lat = $points[$i][0];
 $lng = $points[$i][1];

What else do you need to know?

Answer 2

Using the previous answer I managed to find a solution which did explain the process and worked quite well.

If others are looking to do the same thing, you can use a script made by Gabriel Svennerberg.

The link is: http://www.svennerberg.com/2008/11/polylines-in-google-maps-part-2/