Very basic implementation of 3D preview - install Wx::GLCanvas to get it working

utils/view-mesh.pl

@@ -0,0 +1,67 @@
+#!/usr/bin/perl
+# This script displays 3D preview of a mesh
+
+use strict;
+use warnings;
+
+BEGIN {
+    use FindBin;
+    use lib "$FindBin::Bin/../lib";
+}
+
+use Getopt::Long qw(:config no_auto_abbrev);
+use Slic3r;
+use Slic3r::GUI;
+$|++;
+
+my %opt = ();
+{
+    my %options = (
+        'help'                  => sub { usage() },
+    );
+    GetOptions(%options) or usage(1);
+    $ARGV[0] or usage(1);
+}
+
+{
+    my $model = Slic3r::Model->read_from_file($ARGV[0]);
+    
+    $Slic3r::ViewMesh::mesh = $model->mesh;
+    my $app = Slic3r::ViewMesh->new;
+    $app->MainLoop;
+}
+
+
+sub usage {
+    my ($exit_code) = @_;
+    
+    print <<"EOF";
+Usage: view-mesh.pl [ OPTIONS ] file.stl
+
+    --help              Output this usage screen and exit
+    
+EOF
+    exit ($exit_code || 0);
+}
+
+package Slic3r::ViewMesh;
+use Wx qw(:sizer);
+use base qw(Wx::App);
+
+our $mesh;
+
+sub OnInit {
+    my $self = shift;
+    
+    my $frame = Wx::Frame->new(undef, -1, 'Mesh Viewer', [-1, -1], [500, 400]);
+    my $panel = Wx::Panel->new($frame, -1);
+    
+    my $sizer = Wx::BoxSizer->new(wxVERTICAL);
+    $sizer->Add(Slic3r::GUI::PreviewCanvas->new($panel, $mesh), 1, wxEXPAND, 0);
+    $panel->SetSizer($sizer);
+    $sizer->SetSizeHints($panel);
+    
+    $frame->Show(1);
+}
+
+__END__