Re: [Groff] Using pic/groff/gs to produce gif/jpeg

[David Griffiths]

Ah, using pnmraw instead of pnm makes everything 2-3 times faster!

That brings the pnm approach down to only twice the time of my final 
direct to jpeg approach which I guess I can live with. I know it's nice 
and flexi but it still seems overkill passing round these raw bitmaps 
from command to command.

Thanks for the pointer.

Dave

Ralph Corderoy wrote:

> Hi Larry,
>
>
> > I've never found a good way to script this.  The process I use is to
> > open the postscript file with gimp, crop and save.  It would be very
> > pleasant to have a way to quickly generate high quality cropped images
> > from groff.  If anyone knows how to do that I'd like to know too.
>
>
> For troff.org, where I want the images to be generated from the given
> troff source, I use
>
>     groff "$@" |
>     gs -q -r144 \
>         -sDEVICE=pnmraw -sPAPERSIZE=a4 -sOutputFile=- \
>         -dTextAlphaBits=4 -dGraphicsAlphaBits=4 - |
>     pnmcrop -quiet |
>     pnmmargin -white 10 |
>     pnmtopng -quiet -interlace -compression 9
>
> netpbm does the hard work with pnmcrop and pnmmargin.
>
> Cheers,
>
>
> Ralph.


--
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