[Marble-devel] Re: Problem with map creation

[Torsten Rahn]

On Sunday, 12. June 2011 23:41:32 Mülner, Helmut wrote:
> Hi,
> 
> some more investigation: The effect of marble-1.1, 

I haven't looked into this one yet, but I suspect a trivial fix: my guess is 
that the fuzziness disappears if you click 

View->Redisplay

Helmut, does this get rid of the fuzziness? If so then we can provide a very 
simple fix:

My guess is that Marble 1.1 doesn't reset clean up the (volatile) tile cache 
kept in RAM after tile creation. 
As a result Marble caches scaled up versions of the lower zoom level tiles and 
doesn't make way for the newly created tiles.

The best solution would be to clean the volatile cache after tile creation. 
This can be done through a single call (in MarbleModel IIRC). 
I'll check whether this "theory" is correct and I'll create a bugfix for that 
within the next few minutes/hours.

BR,

Torsten



> that after tile creation
> the map was fuzzy and could not be improved in quality by zooming, seems
> to bo gone in master. But the wrong selection in the map themes remained.
> In the attached screen capture you can see that the historical map is
> displayed but in the map themes view the "Atlas" still is selected.
> 
> Best regards,
> Helmut
> 
> ________________________________________
> Von: Torsten Rahn [tackat at t-online.de]
> Gesendet: Sonntag, 12. Juni 2011 21:44
> An: marble-devel at kde.org
> Cc: Mülner, Helmut
> Betreff: Re: [Marble-devel]   Re: Problem with map creation
> 
> Apart from my earlier mail today Dennis also just pointed out that the
> mouse selection has changed a bit in the theme listview since Marble 1.1:
> 
> It now follows your settings for Double- vs. Single click:
> If your (Windows?-) system uses Double Click by default then you need to
> double click map themes to select them. (I'm not sure I like this change in
> behaviour though ... maybe we should change it back )
> 
> Is your problem possibly related to this?
> 
> BR,
> Torsten
> 
> On Sunday, 12. June 2011 20:21:38 Mülner, Helmut wrote:
> > The current master is worse: runtime tile creation is not possible
> > because marble tries to create the TileCreatorDialog in a
> > non-gui-thread.
> > 
> > Best regards,
> > Helmut
> > 
> > ________________________________________
> > Von: Mülner, Helmut [helmut.muelner at joanneum.at]
> > Gesendet: Mittwoch, 01. Juni 2011 08:04
> > An: Torsten Rahn; marble-devel at kde.org
> > Betreff: [Marble-devel] Re: Problem with map creation
> > 
> > Hi,
> > 
> > I also tested with master: this problem still exists.
> > 
> > Best regards,
> > Helmut
> > 
> > ________________________________________
> > Von: Torsten Rahn [tackat at t-online.de]
> > Gesendet: Dienstag, 31. Mai 2011 18:43
> > An: marble-devel at kde.org
> > Cc: Mülner, Helmut
> > Betreff: Re: [Marble-devel] Re: Problem with map creation
> > 
> > Thanks,
> > 
> > That helps to find the root of the problems ...
> > 
> > Best Regards,
> > 
> > Torsten
> > 
> > On Tuesday, 31. May 2011 18:27:03 Mülner, Helmut wrote:
> > > Hi Torsten,
> > > 
> > > I forgot to mention that I used marble-1.1 as code basis. I have
> > > already compiled master, but had not yet time to test it.
> > > 
> > > Best regards,
> > > Helmut
> > > 
> > > -----Ursprüngliche Nachricht-----
> > > Von: Torsten Rahn [mailto:tackat at t-online.de]
> > > Gesendet: Dienstag, 31. Mai 2011 18:01
> > > An: marble-devel at kde.org
> > > Cc: Mülner, Helmut
> > > Betreff: Re: [Marble-devel] Problem with map creation
> > > 
> > > Hi Helmut,
> > > 
> > > On Tuesday, 31. May 2011 17:27:58 Mülner, Helmut wrote:
> > > > I am preparing a new edition oft he Geothek Schulatlas based on
> > > > marble
> > > > (http://techbase.kde.org/Projects/Marble/MarbleUsedBy#Ed._H.C3.B6lze
> > > > l:_ Ne u er_Kozenn-Atlas_-_Geothek_1.1). I discovered a problem with
> > > > the map/tile
> > > 
> > > > creation process:
> > > Sounds great :-)
> > > Are you using Marble-1.1 or Marble master (soon to be Marble 1.2) ?
> > > 
> > > > -          The map is not selected in the map view
> > > > 
> > > > -          The map is blurred (not displayed with the correct
> > > > resolution)
> > > > 
> > > > -          If I switch to another map and then back to the newly
> > > > created map by double-clicking in the map view, I get the expected
> > > > quality.
> > > > 
> > > > Is this a known bug/limitation?
> > > 
> > > Not a known bug or limitation that is known to me. Bernhard Beschow has
> > > done much work in master recently, so if it occurs in Marble master
> > > maybe this is a regression?
> > > 
> > > Best Regards,
> > > 
> > > Torsten
> > > 
> > > > Any ideas how to correct this – it looks like a signal is missing.
> > > > 
> > > > Hoping for help
> > > > Helmut Mülner
> > > 
> > > _______________________________________________
> > > Marble-devel mailing list
> > > Marble-devel at kde.org
> > > https://mail.kde.org/mailman/listinfo/marble-devel
> > 
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