map city/zipcode polygons using google maps

Question

I am looking for a javascript library that supports the ability to pass a zipcode or city as a parameter, and get a list of x,y coordinates to draw a polygon using google ma

Answer 1

You can get polygon coordenates in json for using with googlemaps using openstreetmap. Go to http://nominatim.openstreetmap.org/ search a place like "Partido de Ituzaingó"

Steps:

• Click on "details"
• Look for the OSM ID and copy it (control+c), example: 2018776
• Go to http://polygons.openstreetmap.fr/index.py
• Paste the ID in
• Download the polygon