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121 lines
2.3 KiB
Perl
Executable File
121 lines
2.3 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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# fped2stl.pl - Convert fped 2D stacks to STL meshes
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#
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# Written 2013 by Werner Almesberger
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# Copyright 2013 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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use POSIX;
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sub usage
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{
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print STDERR "usage: $0 [-x] [-y] prefix [file ...]\n\n";
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exit(1);
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}
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sub flush
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{
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local ($name, $z, $z1, $s) = @_;
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return unless defined $s;
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$z = sprintf("%e", $z);
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$z1 = sprintf("%e", $z1);
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print STDERR "$name $z ...\n";
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$^F = 20;
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pipe SR, SW;
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pipe RR, RW;
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$pid = fork();
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if (!$pid) {
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close SW;
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close RR;
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$sn = fileno SR;
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$rn = fileno RW;
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open(PIPE, "|cameo >/dev/fd/$rn") || die "cameo: $!";
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print PIPE "gnuplot 0mm /dev/fd/$sn\n";
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print PIPE "stl\n";
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close PIPE;
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exit;
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}
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close SR;
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close RW;
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print SW $s;
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close SW;
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while (<RR>) {
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s/cameo/$name/;
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s/(vertex.*)0\.0*e\+00$/$1$z/ || s/(vertex.*)1\.0*e\+00$/$1$z1/;
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print;
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}
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close RR;
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}
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while ($ARGV[0] =~ /^-/) {
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if ($ARGV[0] eq "-x") {
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$flip_x = 1;
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} elsif ($ARGV[0] eq "-y") {
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$flip_y = 1;
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} elsif ($ARGV[0] =~ /^-[^0-9]/) {
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last;
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} else {
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&usage;
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}
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shift;
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}
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$pfx = shift @ARGV;
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&usage unless defined $pfx;
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$skip = 1;
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while (<>) {
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if (/^# $pfx(.*?)-(\d+(\.\d*)?)\s*$/) {
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$z = $2;
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$name{$z} = $1;
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undef $s{$z};
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$skip = 0;
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} elsif (/^# /) {
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$skip = 1;
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}
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next if $skip;
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next if /^#/;
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$s{$z} .= $_;
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if (/^(-?[0-9]*\.[0-9]*)\s+(-?[0-9]*\.[0-9]*)/) {
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$xmin = $1 if $1 < $xmin || !defined $xmin;
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$xmax = $1 if $1 > $xmax || !defined $xmax;
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$ymin = $2 if $2 < $ymin || !defined $ymin;
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$ymax = $2 if $2 > $ymax || !defined $ymax;
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}
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}
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for $z (keys %s) {
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undef $t;
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for $s (split(/\n/, $s{$z})) {
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if ($s =~ /^(-?[0-9]*\.[0-9]*)\s+(-?[0-9]*\.[0-9]*)/) {
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$s = (($xmax+$xmin)/2-$1)." $2" if $flip_y;
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# re-scan, so that we can flip on both axes
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die unless
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$s =~ /^(-?[0-9]*\.[0-9]*)\s+(-?[0-9]*\.[0-9]*)/;
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$s = "$1 ".(($ymax+$ymin)/2-$2) if $flip_x;
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}
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$t .= "$s\n";
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}
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$s{$z} = $t;
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}
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undef $last;
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for $z (sort { $b <=> $a } keys %s) {
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&flush($name{$last}, $last, $z, $s{$last}) if defined $last;
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$last = $z;
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}
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&flush($name{$last}, $last, 0, $s{$last});
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