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ben-wpan/scripts/schps2ppm
Werner Almesberger b3f2014863 Split gitsch2ppm into its constituents.
- scripts/gitsch2ps: generate PS files for KiCad schematics in git
- scripts/normalizeschps: normalize eeschema Postscript
- scripts/schps2ppm: generate PPM files from normalized Eeschema Postscript
- scripts/gitsch2ppm: wrapper and cache manager for the above scripts
2010-08-30 01:53:59 -03:00

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#!/bin/sh
#
# schps2ppm - Generate PPM files from normalized Eeschema Postscript
#
# Written 2010 by Werner Almesberger
# Copyright 2010 Werner Almesberger
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
RES=1280x850
usage()
{
cat <<EOF 1>&2
usage: $0 [options] [file.ps [file.ppm]]
-r XxY image resolution (default: $RES)
EOF
exit 1
}
while true; do
case "$1" in
-r) [ -z "$2" ] && usage
RES="$2"
shift 2;;
-*)
usage;;
*)
break;;
esac
done
[ ! -z "$3" ] && usage
in=${1:--}
out=${2:-/dev/stdout}
X=`echo $RES | sed 's/x.*//'`
Y=`echo $RES | sed 's/.*x//'`
IRES=${Y}x$X
res=`expr 72 \* $X / 800`
cat "$in" |
gs -sDEVICE=ppmraw -sOutputFile=- -g$IRES -r$res \
-dTextAlphaBits=4 -dGraphicsAlphaBits=4 -q - |
pnmflip -r270 >"$out"