[GRASS-user] Digitizing from or converting Google Earth maps

[Daniel Victoria]

Hi Rich,

Regarding the use of Google Maps for digitizing, I just bumped into another
site stating the permissions.
I'm not a lawyer so I'm not sure I understood everything correctly. But
from the site, I could not find anything prohibiting the use of Google Maps
to digitize things 'not for profit'.

https://www.google.com/permissions/geoguidelines/

Of course, I could be wrong...

As for your other question, about using v.digit, I'm afraid I can't give
much help.

Cheers
Daniel

On Mon, Feb 4, 2019 at 11:11 PM Rich Shepard <rshepard at appl-ecosys.com>
wrote:

> On Mon, 4 Feb 2019, Daniel Victoria wrote:
>
> > Not sure if r.in.gdal or r.in.wms can load Google Earth tiles.
>
> Daniel,
>
> Both are worth a try.
>
> > QGIS has a nice way of loading external tiles and WMS servers as a
> > background image. You could than digitize on top of that. But since
> Google
> > changed their MAPs API, I'm not sure if QGIS is loading Google Earth
> > Images straight out of the box. It's been a while since I've used this
> > feature.
>
> Also something for me to consider.
>
> > Also, I'm not sure what to make of this part of the Google Maps Platform
> > terms of service, in the section about "restrictions against misusing"
>
> > (a)  No Scraping.  Customer will not extract, export, scrape, or cache
> > Google Maps Content for use outside the Services. For example, Customer
> > will not:(i) pre-fetch, index, store, reshare, or rehost Google Maps
> > Content outside the services; (ii) bulk download geocodes; (iii) copy
> > business names, addresses, or user reviews; or (iv) use Google Maps
> Content
> > with text-to-speech services. Caching is permitted for certain Services
> as
> > described in the Maps Service Specific Terms.
> >
> > (b) No Creating Content From Google Maps Content. Customer will not
> create
> > content based on Google Maps Content, including tracing, digitizing, or
> > creating other datasets based on Google Maps Content
>
> I read the above as prohibiting re-using GE maps in web applications or for
> profit as products, but not prohibiting using the tiles as background for
> maps produced by a GIS.
>
> The other part of my question, which was not clearly stated, is how to use
> v.edit or the GUI digitizing tool to closely follow an edge in a background
> map. Perhaps the way to do this is to zoom in on a small section, digitize
> a
> series of short arcs, save the work and exit digitizing, then pan the
> working widow and repeat the above. I've not been able to digitize a
> project
> area, for example, while viewing the entire area.
>
> Thanks for your reply,
>
> Rich
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