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Re: print.m problems: png format


From: David Bateman
Subject: Re: print.m problems: png format
Date: Wed, 12 Nov 2003 17:54:19 +0100
User-agent: Mutt/1.3.28i

Laurent,

You forgot to include the file "ps2png.ps", for the case where the PS
file doesn't have a showpage in it.....

D.

According to Laurent Mazet <address@hidden> (on 11/12/03):
> On Thu, 13 Nov 2003 00:33:59 +0100
> charo <address@hidden> wrote:
> 
> > Hi again,
> > 
> > it seems that the problem is printing using png format. In this case, 
> > the output file is empty. Another issue is that printing with png format 
> > hags gnuplot and octave.
> > 
> > I can provide more details if anybody wishes so.
> > Hope this helps.
> > R
> > 
> 
> David and I wrote a script to convert EPS to png. 
> 
> -8<-
> #! /bin/sh -f
> 
> RESOL="-r300"
> OPTIONS=""
> PNMROTATEOPTIONS=""
> #PNMTRANSPARENT="-background white -transparent =white"
> PNMTRANSPARENT=""
> USEPNMROTATE="false"
> addshowpage="/crm/fantasio/bstl/share/prog/script/ps2png.ps"
> while true
> do
>         case "$1" in
>         -nt) PNMTRANSPARENT="" ;;
>         -ccw) PNMROTATEOPTIONS="$PNMROTATEOPTIONS 90" ; USEPNMROTATE="true" ;;
>         -cw) PNMROTATEOPTIONS="$PNMROTATEOPTIONS -90" ; USEPNMROTATE="true" ;;
>         -nt) PNMTRANSPARENT="";;
>         -r*) OPTIONS="$OPTIONS $1" ; RESOL="" ;;
>         -*) OPTIONS="$OPTIONS $1" ;;
>         *)  break ;;
>         esac
>         shift
> done
> 
> # Set default resolution if the user hasn't overridden it
> OPTIONS="$OPTIONS $RESOL"
> 
> if [ $# -lt 1 -o $# -gt 2 ]; then
>         echo "Usage: `basename $0` [options...] input.ps [output.png]" 1>&2
>         echo "  -ccw|-cw: rotate" 1>&2
>         echo "  -nt: no transparency" 1>&2
>         exit 1
> fi
> 
> infile=$1;
> 
> if [ $# -eq 1 ]
> then
>         case "${infile}" in
>           *.ps)         base=`basename ${infile} .ps` ;;
>           *.eps)        base=`basename ${infile} .eps` ;;
>           *)            base=`basename ${infile}` ;;
>         esac
>         outfile=${base}.png
> else
>         outfile=$2
> fi
> 
> if [ "$(grep -L -i showpage ${infile})" != "" ]; then
>         infile="${infile} ${addshowpage}"
> fi
> 
> # Now ghostscript it, getting rid of BoundingBox offsets at the same time
> if [ "$USEPNMROTATE" == "true" ]; then
>   # Use PNMROTATE and not PNMFLIP as I get a seg fault with PNMFLIP.
>   epsffit $(grep '^%%BoundingBox:' ${infile} | head -1 | \
>             awk '{printf "0 0 %d %d", $4-$2, $5-$3;}') ${infile} | \
>     gs -q -dNOPAUSE -dBATCH -sDEVICE=pnm -sOutputFile=- $OPTIONS -f - \
>           -c quit | pnmcrop | pnmrotate $PNMROTATEOPTIONS | \
>           pnmtopng $PNMTRANSPARENT > ${outfile}
> else
>   epsffit $(grep '^%%BoundingBox:' ${infile} | head -1 | \
>             awk '{printf "0 0 %d %d", $4-$2, $5-$3;}') ${infile} | \
>     gs -q -dNOPAUSE -dBATCH -sDEVICE=pnm -sOutputFile=- $OPTIONS -f - \
>           -c quit | pnmcrop | pnmtopng $PNMTRANSPARENT > ${outfile}
> fi
> ->8-
> 
> -- 
> Dr. Laurent Mazet: Research Engineer /V\ Centre de Recherche de MOTOROLA
> Tel: +33 (0)1 69 35 48 30 =-=-=-=-=-=-=-=-=-=-= Email: address@hidden
> 
> 
> 
> -------------------------------------------------------------
> Octave is freely available under the terms of the GNU GPL.
> 
> Octave's home on the web:  http://www.octave.org
> How to fund new projects:  http://www.octave.org/funding.html
> Subscription information:  http://www.octave.org/archive.html
> -------------------------------------------------------------

-- 
David Bateman                                address@hidden
Motorola CRM                                 +33 1 69 35 48 04 (Ph) 
Parc Les Algorithmes, Commune de St Aubin    +33 1 69 35 77 01 (Fax) 
91193 Gif-Sur-Yvette FRANCE

The information contained in this communication has been classified as: 

[x] General Business Information 
[ ] Motorola Internal Use Only 
[ ] Motorola Confidential Proprietary



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Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
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