[GRASS-user] importing Mars DEM takes too long

[Markus Neteler]

On Nov 19, 2016 2:08 PM, "Anna Petrášová" <kratochanna at gmail.com> wrote:
>
> On Sat, Nov 19, 2016 at 7:07 AM, Markus Neteler <neteler at osgeo.org> wrote:
> > On Sat, Nov 19, 2016 at 12:06 PM, Sajid Pareeth <spareeth at gmail.com>
wrote:
> >> Hi Anna
> >>
> >> I am not sure if it is related, but I had similar issues with Sentinel
JP2
> >> files.
> >
> > .. me too, but...:
> >
> >> The solution was to use the ECW library to read the JP2 files instead
of
> >> JP2OpenJPEG/JPEG-2000 driver with OpenJPEG library.
> >>
> >> I had to recompile gdal to add the ECW support.
> >
> > I did that for some weeks, then dropped it (also because of the
> > license situation and the packaging pain).
> > Recent GDAL seems to be faster due to driver improvements.
> >
> > Anna: which GAL version do you use?
> >
> > Markus
>
> GDAL 1.11.3, released 2015/09/16, from Ubuntu 16.04 packages

That's a bit oldish for JP2000.

> I wonder why QGIS was able to read it without problems? I would think
> they use GDAL too?

Did you set the cache? Eg

export GDAL_CACHEMAX=2000

Markus
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