Google Maps API V3: How to get region border coordinates (polyline) data? [duplicate]

StackOverflow https://stackoverflow.com/questions/12194046

Question

I'm trying to get (specified) region borders as GMaps coordinates (to form a polyline) from Google Maps. Is this possible in some way? (either from maps.google.com or my own GMaps in my own domain).

Note: I know you can draw/outline regions manually with tools intended for it (like http://www.birdtheme.org/useful/v3tool.html), but covering a large region ACCURATELY is a ton of work. The draw-it-yourself answer is not an option in this case.

Example:

  1. https://maps.google.com/ -> type in "Uusimaa, Finland"
  2. You can see the pink-ish border that outlines the wanted region
  3. That border is the polyline that I need the coordinates of

Requirements:

  • Extract the region data coordinates (if available) from a given search (as in the example)
  • If the previous is not possible, a source to an ACCURATE map of the region "Uusimaa, Finland" is required (plain googling did not yield needed results).
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