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1 | #!/bin/sh |
2 | # |
3 | # gerb2pbm - Convert a single Gerber file to a Portable BitMap image |
4 | # |
5 | # Written 2011 by Werner Almesberger |
6 | # Copyright 2011 Werner Almesberger |
7 | # |
8 | # This program is free software; you can redistribute it and/or modify |
9 | # it under the terms of the GNU General Public License as published by |
10 | # the Free Software Foundation; either version 2 of the License, or |
11 | # (at your option) any later version. |
12 | # |
13 | |
14 | |
15 | COPPER="(cons 'color #(65535 50401 10000))" |
16 | PASTE="(cons 'color #(39083 39083 50000))" |
17 | MASK="(cons 'inverted #t) (cons 'color #(8839 53994 8178))" |
18 | SILK="(cons 'color #(65535 65535 65535))" |
19 | EDGE="(cons 'color #(65535 65535 0))" |
20 | DRILL="(cons 'color #(0 0 40000))" |
21 | |
22 | FRONT="(cons 'color #(65535 10000 10000))" |
23 | BACK="(cons 'color #(30000 65535 30000))" |
24 | EDGE2="(cons 'color #(30000 40000 65535))" |
25 | |
26 | |
27 | usage() |
28 | { |
29 | cat <<EOF 1>&2 |
30 | usage: $0 gerber-file pbm-file |
31 | EOF |
32 | exit 1 |
33 | } |
34 | |
35 | |
36 | [ ! "$2" -o "$3" ] && usage |
37 | |
38 | cat <<EOF >_gvp |
39 | (define-layer! 1 |
40 | (cons 'filename "$1") |
41 | (cons 'color #(65535 65535 65535))) |
42 | (set-render-type! 2) |
43 | EOF |
44 | gerbv -p _gvp --dpi=600 -x png -o _png |
45 | pngtopnm _png | ppmtopgm | pgmtopbm -threshold >"$2" |
46 | rm -f _gvp _png |
47 |
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