On Tue, Jul 11, 2017 at 10:48 AM, Lubomir I. Ivanov <neolit...@gmail.com> wrote: > > here is a comparison between ESRI (from my test app) and google maps: > http://i.imgur.com/9iYjlqD.jpg
Judging by that, I'd say that the ESRI data is certainly "good enough". It's better than the google data was just a few years ago, I suspect. > google seem to support at least one more zoom level and an overall > cleaner picture. Yeah, google has been getting better satellite data just this year, and that's obviously not even counting the areas where they have really good low-altitude data (ie denser areas with small-plane photography). And they went through another satellite data improvement a couple of years ago. > but the ESRI implementation inside QtLocation supports offline mode. The ESRI data seems good enough. It did sound like you had worries about the actual implementation? > so Marble seems to have the best of both worlds for now - google tiles > and offline support. Yeah, but Marble has been a big painpoint too. So practicalities of actually implementing this and maintaining it should be pretty high. One thing that would be good - and that Marble doesn't do all that well - is to have better integration with the outside world. For example, I've occasionally wanted a "escape to real google maps" just for things like location sharing (and you mentioned streetview earlier - not an issue when you're on a reef in palau, but it *is* a potential issue when you're looking at the parking lot of a shore-dive). So Marble has its good sides, but it has certainly its own share of painpoints too. Linus _______________________________________________ subsurface mailing list subsurface@subsurface-divelog.org http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface