[Kstars-devel] Catalogs from Stellarium

[Jan Kotek]

> Unlike stellarium, I believe our strategy will be to avoid reading the entire
> catalog into memory at the same time.

There is no need to load entire catalog to memory, check MMAP at
bottom. Even Java support it ;-)


On 11/13/07, Jason Harris <kstars at 30doradus.org> wrote:
> Hi Jan,
>
> On Tuesday 13 November 2007 02:32:54 am Jan Kotek wrote:
> > Hi,
> > Stellarium made  huge progress. Version 0.9.0 can display stars up to
> > 18 magnitude. They are using own compilation of NOMAD catalog, it
> > should be more precise then USNOA 2.0.
> >
> > More details at: http://www.stellarium.org/wiki/index.php/Stars
> >
> Wow, this looks really great!  We were just talking about strategies for
> expanding the number of stars recently.  I would love to be able to use the
> Stellarium catalogs directly.  I'll have to take a look at the catalog files.
>
> Unlike stellarium, I believe our strategy will be to avoid reading the entire
> catalog into memory at the same time.  We will likely only make fainter stars
> available at higher zoom levels, so that we can split the catalogs by
> position on the sky, and selectively load the sections that are on-screen.
>
> We need to continue figuring out exactly how this is going to work, and then
> start implementing it shortly after the 4.0 release.
>
> Thanks for the heads-up!
>
> regards,
> Jason
>
> > Maybe you can support this catalog at KStars? C++ code for reading
> > this format is at src/StarMgr.cpp
> >
> > Thanks,
> > Jan Kotek
> > _______________________________________________
> > Kstars-devel mailing list
> > Kstars-devel at kde.org
> > https://mail.kde.org/mailman/listinfo/kstars-devel
>
>
>
> --
> KStars: KDE Desktop Planetarium
> kstars at 30doradus.org
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