Hi, On Sun, Mar 16, 2014 at 08:41:02AM -0400, Phil! Gold wrote: > Google appears to do both, probably because they've gotten really good at > data conflation. They already pull data from multiple datasets, including > proprietary data like Telenav's, public domain data from governments and > such, and restricted use data from local governments, and then they > integrate GMM contributions on top of that amalgamation.
Yes - they stitch together data from multiple sources. But they do it in spatially diverse regions. (For the same datatype - you can intermix different providers for addresses and road geometries although the end product will look broken here and there) Once you turn on editing you cant go back without manual postprocessing. Today you add a street with mapmaker - tomorrow some commercial pre-product has the same street with different topology or probably different attributes. You cant handle this in an automated manner. Flo -- Florian Lohoff f...@zz.de
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