[gdal-dev] Something wrong with writing a big raster into PDF

[Even Rouault]

Selon "Rahkonen Jukka  (Tike)" <jukka.rahkonen at mmmtike.fi>:

> Hi Even,
>
> Yes, that way I can perhaps create an all-white PDF map a bit faster but with
> no other improvement, unfortunately.

Hum, well, perhaps create a ticket on this then

>
> -Jukka-
>
> Even Rouault wrote:
> >
> > Hi Jukka,
> >
> > did you try with -co TILED=YES ?
> >
> > Even
> >
> >
> > > Hi,
> > >
> > > I can't make usable pdf files from some original maps and I do not
> > > understand what goes wrong.
> > > I am testing on Windows 7 and GDAL-dev from gisinternals, both 32 and
> > > 64 bit. Images are like this one:
> > >
> > >
> >
> http://kartat.kapsi.fi/files/taustakarttasarja/taustakartta_80/5m/etrs89/png/U
> > M5L.png
> > >
> > > Command can be simplified to
> > > gdal_translate -of pdf UM5L.png UM5L.pdf Everything seems to go
> > > alright and gdalinfo shows normal information from the pdf. However,
> > > if I open the UM5L.pdf file with Acrobat Reader it does not show a
> > > map. Everything is just pure white.
> > >
> > > I planned to check what happens if read the map back from pdf as
> > > gdal_translate -of gtiff um5l.pdf um5l.tif After fifteen minutes I
> > > estimate that the output will be ready after an hour or so which is
> > > all too slow for a Corei7 CPU and 8GB of RAM.
> > >
> > > I had another try with the same binaries with a small png file
> > > (2000x2000
> > > pixels) and conversion into pdf was fast and successful. Is there
> > > perhaps something that does not scale up properly when the raster size
> gets
> > bigger?
> > >
> > > -Jukka Rahkonen-
> > >
> > >
> > >
> > > _______________________________________________
> > > gdal-dev mailing list
> > > gdal-dev at lists.osgeo.org
> > > http://lists.osgeo.org/mailman/listinfo/gdal-dev
> > >
> >
>
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