the marble (map) replacement dilemma

[Tomaz Canabrava]

We actually use the google apis to fetch the images


On Mon 10. Jul 2017 at 17:05, Lubomir I. Ivanov <neolit123 at gmail.com> wrote:

> On 10 July 2017 at 17:29, Hartley Horwitz <hhrwtz at gmail.com> wrote:
> >>
> >> ---------- Forwarded message ----------
> >> From: "Lubomir I. Ivanov" <neolit123 at gmail.com>
> >> To: Subsurface Mailing List <subsurface at subsurface-divelog.org>
> >> Cc:
> >> Bcc:
> >> Date: Mon, 10 Jul 2017 00:25:38 +0300
> >> Subject: the marble (map) replacement dilemma
> >>
> >> .........
> >> you can pick between Google Maps and Qt Location
> >
> >
> > My pick is to use Google Maps and accept that access to the maps when
> > offline isn't supported.  Obviously that only makes sense if Subsurface
> > suppresses the viewport update to prevent the software from hanging or
> > producing error messages.
>
> in my current tests, if the internet drops, the google maps widget in
> subsurface would not feedback any errors to the user frontend.
> what happens is that it would cache the current zoom level and perhaps
> some tiles form the neighbor zoom level, but if the user zooms out too
> much the viewport just turns grey even if it has already cached the
> tiles from that zoom level previously to disk.
>
> we can potentially install a more user friendly error handling. for
> instance - filling the google map widget with an overlay message
> saying: "no internet connection" and once the internet is back (e.g.
> via ICMP echo) the message can be hidden.
>
> >
> > The reason I lean towards Google maps is that I like to see the reefs
> using
> > satellite images, and thus I'm already looking at Google to help set the
> > dive location (if I don't have the exact GPS coordinates).
>
> the Qt Location solution (see the animated GIF in first post) also has
> satellite imagery. however, i would consider that imagery lower
> quality than that of google maps.
> (e.g. some tiles with drastically different colors are stitched
> together at places)
>
> > Actually sometimes I still use Google maps because I may have the
> coordinates in
> > sexagesimal degrees coordinates and its easier to type in coordinates in
> > decimal and google is an easy source for that translation.
> >
>
> i don't think we support sexagesimal coordinates yet, but we can
> certainly add support for that.
>
> lubomir
> --
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