From 669341cd11596ed5e3a7903135a551ccd5cb029a Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Sat, 28 Jan 2012 15:05:42 +0100
Subject: New utility script to split STL plates into individual STL files

---
 utils/split_stl.pl | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100755 utils/split_stl.pl

(limited to 'utils')

diff --git a/utils/split_stl.pl b/utils/split_stl.pl
new file mode 100755
index 000000000..ec35211b4
--- /dev/null
+++ b/utils/split_stl.pl
@@ -0,0 +1,74 @@
+#!/usr/bin/perl
+# This script splits a STL plate into individual files
+
+use strict;
+use warnings;
+
+BEGIN {
+    use FindBin;
+    use lib "$FindBin::Bin/../lib";
+}
+
+use File::Basename qw(basename);
+use Getopt::Long qw(:config no_auto_abbrev);
+use Slic3r;
+$|++;
+
+my %opt = ();
+{
+    my %options = (
+        'help'                  => sub { usage() },
+        'ascii'                 => \$opt{ascii},
+    );
+    GetOptions(%options) or usage(1);
+    $ARGV[0] or usage(1);
+}
+
+{
+    my $mesh = Slic3r::STL->read_file($ARGV[0]);
+    my $basename = $ARGV[0];
+    $basename =~ s/\.stl$//i;
+    
+    # loop while we have remaining facets
+    my $part_count = 0;
+    $mesh->make_edge_table;
+    while (1) {
+        # get the first facet
+        my @facet_queue = ();
+        my @facets = ();
+        for (my $i = 0; $i <= $#{$mesh->facets}; $i++) {
+            if (defined $mesh->facets->[$i]) {
+                push @facet_queue, $i;
+                last;
+            }
+        }
+        last if !@facet_queue;
+        
+        while (defined (my $facet_id = shift @facet_queue)) {
+            next unless defined $mesh->facets->[$facet_id];
+            push @facets, $mesh->facets->[$facet_id];
+            push @facet_queue, $mesh->get_connected_facets($facet_id);
+            $mesh->facets->[$facet_id] = undef;
+        }
+        
+        my $output_file = sprintf '%s_%02d.stl', $basename, ++$part_count;
+        printf "Writing to %s\n", basename($output_file);
+        Slic3r::STL->write_file($output_file, Slic3r::TriangleMesh->new(facets => \@facets), !$opt{ascii});
+    }
+}
+
+
+sub usage {
+    my ($exit_code) = @_;
+    
+    print <<"EOF";
+Usage: split_stl.pl [ OPTIONS ] file.stl
+
+    --help              Output this usage screen and exit
+    --ascii             Generate ASCII STL files (default: binary)
+    
+EOF
+    exit ($exit_code || 0);
+}
+
+__END__
-- 
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