122 lines
2.3 KiB
Perl
Executable File
122 lines
2.3 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
#
|
|
# fped2stl.pl - Convert fped 2D stacks to STL meshes
|
|
#
|
|
# Written 2013 by Werner Almesberger
|
|
# Copyright 2013 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.
|
|
#
|
|
|
|
|
|
use POSIX;
|
|
|
|
sub usage
|
|
{
|
|
print STDERR "usage: $0 [-x] [-y] prefix [file ...]\n\n";
|
|
exit(1);
|
|
}
|
|
|
|
|
|
sub flush
|
|
{
|
|
local ($name, $z, $z1, $s) = @_;
|
|
|
|
return unless defined $s;
|
|
$z = sprintf("%e", $z);
|
|
$z1 = sprintf("%e", $z1);
|
|
print STDERR "$name $z ...\n";
|
|
$^F = 20;
|
|
pipe SR, SW;
|
|
pipe RR, RW;
|
|
$pid = fork();
|
|
if (!$pid) {
|
|
close SW;
|
|
close RR;
|
|
$sn = fileno SR;
|
|
$rn = fileno RW;
|
|
open(PIPE, "|cameo >/dev/fd/$rn") || die "cameo: $!";
|
|
print PIPE "gnuplot 0mm /dev/fd/$sn\n";
|
|
print PIPE "stl\n";
|
|
close PIPE;
|
|
exit;
|
|
}
|
|
close SR;
|
|
close RW;
|
|
|
|
print SW $s;
|
|
close SW;
|
|
|
|
while (<RR>) {
|
|
s/cameo/$name/;
|
|
s/(vertex.*)0\.0*e\+00$/$1$z/ || s/(vertex.*)1\.0*e\+00$/$1$z1/;
|
|
print;
|
|
}
|
|
close RR;
|
|
}
|
|
|
|
|
|
while ($ARGV[0] =~ /^-/) {
|
|
if ($ARGV[0] eq "-x") {
|
|
$flip_x = 1;
|
|
} elsif ($ARGV[0] eq "-y") {
|
|
$flip_y = 1;
|
|
} elsif ($ARGV[0] =~ /^-[^0-9]/) {
|
|
last;
|
|
} else {
|
|
&usage;
|
|
}
|
|
shift;
|
|
}
|
|
|
|
$pfx = shift @ARGV;
|
|
&usage unless defined $pfx;
|
|
|
|
$skip = 1;
|
|
while (<>) {
|
|
if (/^# $pfx(.*?)-(\d+(\.\d*)?)\s*$/) {
|
|
$z = $2;
|
|
$name{$z} = $1;
|
|
undef $s{$z};
|
|
$skip = 0;
|
|
} elsif (/^# /) {
|
|
$skip = 1;
|
|
}
|
|
next if $skip;
|
|
next if /^#/;
|
|
$s{$z} .= $_;
|
|
if (/^(-?[0-9]*\.[0-9]*)\s+(-?[0-9]*\.[0-9]*)/) {
|
|
$xmin = $1 if $1 < $xmin || !defined $xmin;
|
|
$xmax = $1 if $1 > $xmax || !defined $xmax;
|
|
$ymin = $2 if $2 < $ymin || !defined $ymin;
|
|
$ymax = $2 if $2 > $ymax || !defined $ymax;
|
|
}
|
|
}
|
|
|
|
for $z (keys %s) {
|
|
undef $t;
|
|
for $s (split(/\n/, $s{$z})) {
|
|
if ($s =~ /^(-?[0-9]*\.[0-9]*)\s+(-?[0-9]*\.[0-9]*)/) {
|
|
$s = sprintf("%.6f", ($xmax+$xmin)/2-$1)." $2"
|
|
if $flip_y;
|
|
|
|
# re-scan, so that we can flip on both axes
|
|
die unless
|
|
$s =~ /^(-?[0-9]*\.[0-9]*)\s+(-?[0-9]*\.[0-9]*)/;
|
|
$s = "$1 ".(($ymax+$ymin)/2-$2) if $flip_x;
|
|
}
|
|
$t .= "$s\n";
|
|
}
|
|
$s{$z} = $t;
|
|
}
|
|
|
|
undef $last;
|
|
for $z (sort { $b <=> $a } keys %s) {
|
|
&flush($name{$last}, $last, $z, $s{$last}) if defined $last;
|
|
$last = $z;
|
|
}
|
|
&flush($name{$last}, $last, 0, $s{$last});
|