228 lines
8.3 KiB
Perl
228 lines
8.3 KiB
Perl
package Slic3r::Skein;
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use Moo;
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use Config;
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use File::Basename qw(basename fileparse);
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use Slic3r::Geometry qw(PI unscale);
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use Time::HiRes qw(gettimeofday tv_interval);
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use XXX;
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# full path (relative or absolute) to the input file
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has 'input_file' => (is => 'ro', required => 1);
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# full path (relative or absolute) to the output file; it may contain
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# formatting variables like [layer_height] etc.
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has 'output_file' => (is => 'rw', required => 0);
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has 'status_cb' => (is => 'rw', required => 0, default => sub { sub {} });
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has 'processing_time' => (is => 'rw', required => 0);
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sub slice_input {
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my $self = shift;
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my $print;
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if ($self->input_file =~ /\.stl$/i) {
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my $mesh = Slic3r::Format::STL->read_file($self->input_file);
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$mesh->check_manifoldness;
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$print = Slic3r::Print->new_from_mesh($mesh);
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} elsif ( $self->input_file =~ /\.amf(\.xml)?$/i) {
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my ($materials, $meshes_by_material) = Slic3r::Format::AMF->read_file($self->input_file);
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$_->check_manifoldness for values %$meshes_by_material;
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$print = Slic3r::Print->new_from_mesh($meshes_by_material->{_} || +(values %$meshes_by_material)[0]);
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} else {
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die "Input file must have .stl or .amf(.xml) extension\n";
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}
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}
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sub go {
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my $self = shift;
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my $t0 = [gettimeofday];
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# skein the STL into layers
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# each layer has surfaces with holes
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$self->status_cb->(5, "Processing input file " . $self->input_file);
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$self->status_cb->(10, "Processing triangulated mesh");
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my $print = $self->slice_input;
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# make perimeters
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# this will add a set of extrusion loops to each layer
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# as well as generate infill boundaries
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$self->status_cb->(20, "Generating perimeters");
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{
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my $perimeter_maker = Slic3r::Perimeter->new;
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$perimeter_maker->make_perimeter($_) for @{$print->layers};
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}
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# this will clip $layer->surfaces to the infill boundaries
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# and split them in top/bottom/internal surfaces;
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$self->status_cb->(30, "Detecting solid surfaces");
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$print->detect_surfaces_type;
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# decide what surfaces are to be filled
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$self->status_cb->(35, "Preparing infill surfaces");
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$_->prepare_fill_surfaces for @{$print->layers};
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# this will remove unprintable surfaces
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# (those that are too tight for extrusion)
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$self->status_cb->(40, "Cleaning up");
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$_->remove_small_surfaces for @{$print->layers};
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# this will detect bridges and reverse bridges
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# and rearrange top/bottom/internal surfaces
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$self->status_cb->(45, "Detect bridges");
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$_->process_bridges for @{$print->layers};
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# this will remove unprintable perimeter loops
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# (those that are too tight for extrusion)
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$self->status_cb->(50, "Cleaning up the perimeters");
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$_->remove_small_perimeters for @{$print->layers};
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# detect which fill surfaces are near external layers
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# they will be split in internal and internal-solid surfaces
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$self->status_cb->(60, "Generating horizontal shells");
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$print->discover_horizontal_shells;
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# free memory
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@{$_->surfaces} = () for @{$print->layers};
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# combine fill surfaces to honor the "infill every N layers" option
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$self->status_cb->(70, "Combining infill");
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$print->infill_every_layers;
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# this will generate extrusion paths for each layer
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$self->status_cb->(80, "Infilling layers");
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{
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my $fill_maker = Slic3r::Fill->new('print' => $print);
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Slic3r::parallelize(
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items => [ 0..($print->layer_count-1) ],
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thread_cb => sub {
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my $q = shift;
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$Slic3r::Geometry::Clipper::clipper = Math::Clipper->new;
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my $fills = {};
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while (defined (my $layer_id = $q->dequeue)) {
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$fills->{$layer_id} = [ $fill_maker->make_fill($print->layers->[$layer_id]) ];
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}
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return $fills;
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},
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collect_cb => sub {
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my $fills = shift;
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foreach my $layer_id (keys %$fills) {
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@{$print->layers->[$layer_id]->fills} = @{$fills->{$layer_id}};
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}
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},
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no_threads_cb => sub {
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foreach my $layer (@{$print->layers}) {
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@{$layer->fills} = $fill_maker->make_fill($layer);
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}
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},
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);
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}
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# generate support material
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if ($Slic3r::support_material) {
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$self->status_cb->(85, "Generating support material");
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$print->generate_support_material;
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}
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# free memory (note that support material needs fill_surfaces)
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@{$_->fill_surfaces} = () for @{$print->layers};
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# make skirt
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$self->status_cb->(88, "Generating skirt");
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$print->extrude_skirt;
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# output everything to a G-code file
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my $output_file = $self->expanded_output_filepath;
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$self->status_cb->(90, "Exporting G-code to $output_file");
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$print->export_gcode($output_file);
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# run post-processing scripts
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if (@$Slic3r::post_process) {
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$self->status_cb->(95, "Running post-processing scripts");
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for (@$Slic3r::post_process) {
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Slic3r::debugf " '%s' '%s'\n", $_, $output_file;
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system($_, $output_file);
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}
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}
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# output some statistics
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$self->processing_time(tv_interval($t0));
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printf "Done. Process took %d minutes and %.3f seconds\n",
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int($self->processing_time/60),
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$self->processing_time - int($self->processing_time/60)*60;
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# TODO: more statistics!
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printf "Filament required: %.1fmm (%.1fcm3)\n",
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$print->total_extrusion_length, $print->total_extrusion_volume;
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}
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sub export_svg {
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my $self = shift;
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my $print = $self->slice_input;
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my $output_file = $self->expanded_output_filepath;
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$output_file =~ s/\.gcode$/.svg/i;
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open my $fh, ">", $output_file or die "Failed to open $output_file for writing\n";
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print "Exporting to $output_file...";
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print $fh sprintf <<"EOF", unscale($print->total_x_length), unscale($print->total_y_length);
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
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<svg width="%s" height="%s" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:slic3r="http://slic3r.org/namespaces/slic3r">
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<!--
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Generated using Slic3r $Slic3r::VERSION
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http://slic3r.org/
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-->
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EOF
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my $print_polygon = sub {
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my ($polygon, $type) = @_;
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printf $fh qq{ <polygon slic3r:type="%s" points="%s" style="fill: %s" />\n},
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$type, (join ' ', map { join ',', map unscale $_, @$_ } @$polygon),
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($type eq 'contour' ? 'black' : 'white');
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};
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foreach my $layer (@{$print->layers}) {
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printf $fh qq{ <g id="layer%d" slic3r:z="%s">\n}, $layer->id, unscale $layer->slice_z;
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# sort slices so that the outermost ones come first
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my @slices = sort { $a->expolygon->contour->encloses_point($b->expolygon->contour->[0]) ? 0 : 1 } @{$layer->slices};
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foreach my $copy (@{$print->copies}) {
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foreach my $slice (@slices) {
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my $expolygon = $slice->expolygon->clone;
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$expolygon->translate(@$copy);
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$print_polygon->($expolygon->contour, 'contour');
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$print_polygon->($_, 'hole') for $expolygon->holes;
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}
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}
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print $fh qq{ </g>\n};
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}
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print $fh "</svg>\n";
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close $fh;
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print "Done.\n";
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}
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# this method will return the value of $self->output_file after expanding its
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# format variables with their values
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sub expanded_output_filepath {
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my $self = shift;
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my $path = $self->output_file;
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# if no explicit output file was defined, we take the input
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# file directory and append the specified filename format
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$path ||= (fileparse($self->input_file))[1] . $Slic3r::output_filename_format;
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my $input_filename = my $input_filename_base = basename($self->input_file);
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$input_filename_base =~ s/\.(?:stl|amf(?:\.xml)?)$//i;
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return Slic3r::Config->replace_options($path, {
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input_filename => $input_filename,
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input_filename_base => $input_filename_base,
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});
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}
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1;
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