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