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I don't think Google mapped every street single address to a set of lat/long?? There must be mathematical formula to map a street address, knowing how the city
by mtw 11y ago
I don't think Google mapped every street single address to a set of lat/long?? There must be mathematical formula to map a street address, knowing how the city allocated street numbers
- rmc 11y agoOh dear. Maybe in some places, which has a sensible and consistant addressing format. But there are plenty of places where there is no rhyme or reason to it. Have a look at Germany in OSM. That's what crowdsourced maps can do.
- maxerickson 11y agoThey pull in public data. OpenAddresses is doing that and gives a sense of just how much is available: http://openaddresses.io/ http://openaddresses.io/ You also see Google talking about extracting building numbers from Streetview photos.
- lucaspiller 11y agoActually they do. This is why what you enter in CAPTCHAs appears to be house numbers - it is from Google Streetview.