There is a source US address/coordinates SOURCE and a bunch of US addresses/coords WAIPOINTS that need to be visited. I want to get a list of WAIPOINTS sorted in a way that it creates a shortest circuit ending with the starting point SOURCE (or, if not possible, at least a shortest route to visit all the WAIPOINTS no matter where it ends.
It's a Chinese postman problem I think. I was checking Google Directions API but I didn't find such option.
Do you have any idea how to do that? Preferably a free option, I need to use it 10 times a month.
