Weird map display when offline

[Dirk Hohndel]

On Sat, 2013-12-07 at 19:49 +0100, Lutz Vieweg wrote:
> It's no surprise that the map display isn't fully functional
> when there is no InterNet connection, but one behaviour I

Actually, it usually IS. Because it caches tiles (even though it
shouldn't according to Google's ToS... cough, cough). I've used this
successfully on airplanes to show people Subsurface :-)

> found strange - to reproduce:
> 
> - disconnect from the InterNet
> - choose some dive in the list that does not yet have a
>    location associated
> - using the globe view, choose some remote location that
>    you have not been looking at before - the display will
>    of course show very coarse pixels at that time, that's ok.
> - now back at the "all" view, choose some other dive with
>    location information - the map display will move/update,
>    quality depending of course on the cached map tiles
> - choose the previous dive again that you chose the location
>    for while offline.
> 
> My expectation at this point would be to see the map
> as course as it was when choosing the location offline.
> But what I really see at this time is a strangely garbled map
> where non-neighbouring tiles from very different positions
> overlap and the location of the dive marker is somewhat random.

That sounds like a Marble bug to me...

> Since the display looks fine after going online again, this
> is probably just a cosmetic issue and does not need urgent fixing.

It might be worth reporting it to the Marble developers, though.

/D