I would like then, after you try it out, what are your
comments about this method : I am always open to
improvements!
--- Hauss Reinbold <reinbold@dri.edu> a écrit :
> Thanks for the info, I will definitely try it out.
>
> Hauss Reinbold
>
> On Sep 1, 2004, at 9:09 AM, Christian Pagé wrote:
>
> > Hi,
> >
> > My method first was to produce .ps then convert
> using
> > Imagemagick to .gif. But it is very slow for a lot
> of
> > images. I am now using the following method, which
> is
> > at least twice as fast:
> > 1- I produce maps using ngcm NCL driver
> > 2- Convert to gif using : ncgm2gif -res 1362x1362
> > file.ncgm
> > 3- Then, scale back the image using:
> > convert -interlace none -geometry 600x600 file.gif
> > filesm.gif
> > 4- Crop the whitespace:
> > mogrify -crop 0x0 filesm.gif
> >
> > This is much faster than going through postscript.
> I
> > am also producing, with the same ncgm file, a
> smaller
> > version for panels output, e.g. using:
> > ncgm2gif -res 862x862 file.ncgm
> > and then
> > convert -interlace none -geometry 380x380 file.gif
> > filevsm.gif
> >
> > Examples:
> > http://meteocentre.com/models/gfs_long_amer_00/
> >
>
http://meteocentre.com/models/gfs_long_amer_00/gfs_00_panel.gif
> >
> > Cheers,
> >
> > Christian Pagé
> > UQAM
> >
> > --- Hauss Reinbold <reinbold@dri.edu> a écrit :
> >> Hello all,
> >>
> >> I'm working on taking model output on an
> operational
> >> basis and
> >> displaying it on the web. If I'm using NCL to
> >> create the graphics
> >> (850mb height maps, etc.), what is the best and
> >> fastest method to get
> >> it to a gif or jpg format? I use Imagemagick's
> >> convert to go from
> >> postscript to jpg or gif, but the process is slow
> >> (at least at the
> >> density I would like the graphics at) and using
> >> going the ngcm through
> >> ctrans route yields a graphics quality I am not
> >> happy with. I would
> >> like post-processing to take less time than the
> >> model run, but I don't
> >> want to sacrifice image quality too much. I know
> >> this may not be
> >> possible, but I am determined to get the fastest
> >> conversion time
> >> possible with the highest possible image quality.
> I
> >> have done a lot of
> >> research on this already, but I'm curious as to
> what
> >> some of you would
> >> suggest as the fastest way to get from NCL
> >> postscript plot to jpg or
> >> gif without sacrificing image quality. Obviously
> >> this is a somewhat
> >> subjective assessment. I realize this may be a
> >> little off-topic as
> >> it's not strictly NCL related, but I would
> >> appreciate any advice any of
> >> you might have. Thanks.
> >>
> >> Hauss Reinbold
> >>
> >> _______________________________________________
> >> ncl-talk mailing list
> >> ncl-talk@ucar.edu
> >> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
> >>
> >
> > =====
> > ------------
> > Christian Pagé
> >
> >
>
__________________________________________________________
> > Lèche-vitrine ou lèche-écran ?
> > magasinage.yahoo.ca
> > _______________________________________________
> > ncl-talk mailing list
> > ncl-talk@ucar.edu
> > http://mailman.ucar.edu/mailman/listinfo/ncl-talk
> >
>
>
=====
------------
Christian Pagé
__________________________________________________________
Lèche-vitrine ou lèche-écran ?
magasinage.yahoo.ca
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