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			573 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
			
		
		
	
	
			573 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
package Slic3r::Print::GCode;
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use Moo;
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has 'print'     => (is => 'ro', required => 1, handles => [qw(objects placeholder_parser config)]);
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has 'fh'        => (is => 'ro', required => 1);
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has '_gcodegen'                      => (is => 'rw');
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has '_cooling_buffer'                => (is => 'rw');
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has '_spiral_vase'                   => (is => 'rw');
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has '_vibration_limit'               => (is => 'rw');
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has '_arc_fitting'                   => (is => 'rw');
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has '_pressure_regulator'            => (is => 'rw');
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has '_skirt_done'                    => (is => 'rw', default => sub { {} });  # print_z => 1
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has '_brim_done'                     => (is => 'rw');
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has '_second_layer_things_done'      => (is => 'rw');
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has '_last_obj_copy'                 => (is => 'rw');
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use List::Util qw(first sum);
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use Slic3r::Flow ':roles';
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use Slic3r::Geometry qw(X Y scale unscale chained_path convex_hull);
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use Slic3r::Geometry::Clipper qw(JT_SQUARE union_ex offset);
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sub BUILD {
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    my ($self) = @_;
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    {
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        # estimate the total number of layer changes
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        # TODO: only do this when M73 is enabled
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        my $layer_count;
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        if ($self->config->complete_objects) {
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            $layer_count = sum(map { $_->total_layer_count * @{$_->copies} } @{$self->objects});
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        } else {
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            # if sequential printing is not enable, all copies of the same object share the same layer change command(s)
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            $layer_count = sum(map { $_->total_layer_count } @{$self->objects});
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        }
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        # set up our helper object
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        my $gcodegen = Slic3r::GCode->new(
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            placeholder_parser  => $self->placeholder_parser,
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            layer_count         => $layer_count,
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            enable_cooling_markers => 1,
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        );
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        $gcodegen->apply_print_config($self->config);
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        $gcodegen->set_extruders($self->print->extruders);
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        $self->_gcodegen($gcodegen);
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    }
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    $self->_cooling_buffer(Slic3r::GCode::CoolingBuffer->new(
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        config      => $self->config,
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        gcodegen    => $self->_gcodegen,
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    ));
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    $self->_spiral_vase(Slic3r::GCode::SpiralVase->new(config => $self->config))
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        if $self->config->spiral_vase;
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    $self->_vibration_limit(Slic3r::GCode::VibrationLimit->new(config => $self->config))
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        if $self->config->vibration_limit != 0;
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    $self->_arc_fitting(Slic3r::GCode::ArcFitting->new(config => $self->config))
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        if $self->config->gcode_arcs;
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    $self->_pressure_regulator(Slic3r::GCode::PressureRegulator->new(config => $self->config))
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        if $self->config->pressure_advance > 0;
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}
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sub export {
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    my ($self) = @_;
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    my $fh          = $self->fh;
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    my $gcodegen    = $self->_gcodegen;
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    # write some information
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    my @lt = localtime;
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    printf $fh "; generated by Slic3r $Slic3r::VERSION on %04d-%02d-%02d at %02d:%02d:%02d\n\n",
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        $lt[5] + 1900, $lt[4]+1, $lt[3], $lt[2], $lt[1], $lt[0];
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    print $fh "; $_\n" foreach split /\R/, $self->config->notes;
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    print $fh "\n" if $self->config->notes;
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    my $first_object = $self->objects->[0];
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    my $layer_height = $first_object->config->layer_height;
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    for my $region_id (0..$#{$self->print->regions}) {
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        my $region = $self->print->regions->[$region_id];
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        printf $fh "; external perimeters extrusion width = %.2fmm\n",
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            $region->flow(FLOW_ROLE_EXTERNAL_PERIMETER, $layer_height, 0, 0, -1, $first_object)->width;
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        printf $fh "; perimeters extrusion width = %.2fmm\n",
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            $region->flow(FLOW_ROLE_PERIMETER, $layer_height, 0, 0, -1, $first_object)->width;
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        printf $fh "; infill extrusion width = %.2fmm\n",
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            $region->flow(FLOW_ROLE_INFILL, $layer_height, 0, 0, -1, $first_object)->width;
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        printf $fh "; solid infill extrusion width = %.2fmm\n",
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            $region->flow(FLOW_ROLE_SOLID_INFILL, $layer_height, 0, 0, -1, $first_object)->width;
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        printf $fh "; top infill extrusion width = %.2fmm\n",
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            $region->flow(FLOW_ROLE_TOP_SOLID_INFILL, $layer_height, 0, 0, -1, $first_object)->width;
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        printf $fh "; support material extrusion width = %.2fmm\n",
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            $self->objects->[0]->support_material_flow->width
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            if $self->print->has_support_material;
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        printf $fh "; first layer extrusion width = %.2fmm\n",
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            $region->flow(FLOW_ROLE_PERIMETER, $layer_height, 0, 1, -1, $self->objects->[0])->width
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            if $region->config->first_layer_extrusion_width;
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        print  $fh "\n";
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    }
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    # prepare the helper object for replacing placeholders in custom G-code and output filename
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    $self->placeholder_parser->update_timestamp;
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    print $fh $gcodegen->writer->set_fan(0, 1)
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        if $self->config->cooling && $self->config->disable_fan_first_layers;
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    # set bed temperature
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    if ((my $temp = $self->config->first_layer_bed_temperature) && $self->config->start_gcode !~ /M(?:190|140)/i) {
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        printf $fh $gcodegen->writer->set_bed_temperature($temp, 1);
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    }
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    # set extruder(s) temperature before and after start G-code
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    $self->_print_first_layer_temperature(0);
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    printf $fh "%s\n", $gcodegen->placeholder_parser->process($self->config->start_gcode);
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    $self->_print_first_layer_temperature(1);
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    # set other general things
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    print $fh $gcodegen->preamble;
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    # initialize a motion planner for object-to-object travel moves
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    if ($self->config->avoid_crossing_perimeters) {
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        my $distance_from_objects = scale 1;
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        # compute the offsetted convex hull for each object and repeat it for each copy.
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        my @islands_p = ();
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        foreach my $object (@{$self->objects}) {
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            # compute the convex hull of the entire object
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            my $convex_hull = convex_hull([
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                map @{$_->contour}, map @{$_->slices}, @{$object->layers},
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            ]);
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            # discard objects only containing thin walls (offset would fail on an empty polygon)
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            next if !@$convex_hull;
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            # grow convex hull by the wanted clearance
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            my @obj_islands_p = @{offset([$convex_hull], $distance_from_objects, 1, JT_SQUARE)};
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            # translate convex hull for each object copy and append it to the islands array
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            foreach my $copy (@{ $object->_shifted_copies }) {
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                my @copy_islands_p = map $_->clone, @obj_islands_p;
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                $_->translate(@$copy) for @copy_islands_p;
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                push @islands_p, @copy_islands_p;
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            }
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        }
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        $gcodegen->avoid_crossing_perimeters->init_external_mp(union_ex(\@islands_p));
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    }
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    # calculate wiping points if needed
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    if ($self->config->ooze_prevention) {
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        my @skirt_points = map @$_, map @$_, @{$self->print->skirt};
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        if (@skirt_points) {
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            my $outer_skirt = convex_hull(\@skirt_points);
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            my @skirts = ();
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            foreach my $extruder_id (@{$self->print->extruders}) {
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                my $extruder_offset = $self->config->get_at('extruder_offset', $extruder_id);
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                push @skirts, my $s = $outer_skirt->clone;
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                $s->translate(-scale($extruder_offset->x), -scale($extruder_offset->y));  #)
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            }
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            my $convex_hull = convex_hull([ map @$_, @skirts ]);
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            $gcodegen->ooze_prevention->enable(1);
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            $gcodegen->ooze_prevention->standby_points(
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                [ map @{$_->equally_spaced_points(scale 10)}, @{offset([$convex_hull], scale 3)} ]
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            );
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            if (0) {
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                require "Slic3r/SVG.pm";
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                Slic3r::SVG::output(
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                    "ooze_prevention.svg",
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                    polygons        => [$outer_skirt],
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                    red_polygons    => \@skirts,
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                    points          => $gcodegen->ooze_prevention->standby_points,
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                );
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            }
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        }
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    }
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    # set initial extruder only after custom start G-code
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    print $fh $gcodegen->set_extruder($self->print->extruders->[0]);
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    # do all objects for each layer
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    if ($self->config->complete_objects) {
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        # print objects from the smallest to the tallest to avoid collisions
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        # when moving onto next object starting point
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        my @obj_idx = sort { $self->objects->[$a]->size->z <=> $self->objects->[$b]->size->z } 0..($self->print->object_count - 1);
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        my $finished_objects = 0;
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        for my $obj_idx (@obj_idx) {
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            my $object = $self->objects->[$obj_idx];
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            for my $copy (@{ $self->objects->[$obj_idx]->_shifted_copies }) {
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                # move to the origin position for the copy we're going to print.
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                # this happens before Z goes down to layer 0 again, so that 
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                # no collision happens hopefully.
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                if ($finished_objects > 0) {
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                    $gcodegen->set_origin(Slic3r::Pointf->new(map unscale $copy->[$_], X,Y));
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                    print $fh $gcodegen->retract;
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                    print $fh $gcodegen->travel_to(
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                        $object->_copies_shift->negative,
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                        undef,
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                        'move to origin position for next object',
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                    );
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                }
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                my @layers = sort { $a->print_z <=> $b->print_z } @{$object->layers}, @{$object->support_layers};
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                for my $layer (@layers) {
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                    # if we are printing the bottom layer of an object, and we have already finished
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                    # another one, set first layer temperatures. this happens before the Z move
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                    # is triggered, so machine has more time to reach such temperatures
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                    if ($layer->id == 0 && $finished_objects > 0) {
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                        printf $fh $gcodegen->writer->set_bed_temperature($self->config->first_layer_bed_temperature),
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                            if $self->config->first_layer_bed_temperature;
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                        $self->_print_first_layer_temperature(0);
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                    }
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                    $self->process_layer($layer, [$copy]);
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                }
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                $self->flush_filters;
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                $finished_objects++;
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            }
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        }
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    } else {
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        # order objects using a nearest neighbor search
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        my @obj_idx = @{chained_path([ map Slic3r::Point->new(@{$_->_shifted_copies->[0]}), @{$self->objects} ])};
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        # sort layers by Z
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        my %layers = ();  # print_z => [ [layers], [layers], [layers] ]  by obj_idx
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        foreach my $obj_idx (0 .. ($self->print->object_count - 1)) {
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            my $object = $self->objects->[$obj_idx];
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            foreach my $layer (@{$object->layers}, @{$object->support_layers}) {
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                $layers{ $layer->print_z } ||= [];
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                $layers{ $layer->print_z }[$obj_idx] ||= [];
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                push @{$layers{ $layer->print_z }[$obj_idx]}, $layer;
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            }
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        }
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        foreach my $print_z (sort { $a <=> $b } keys %layers) {
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            foreach my $obj_idx (@obj_idx) {
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                foreach my $layer (@{ $layers{$print_z}[$obj_idx] // [] }) {
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                    $self->process_layer($layer, $layer->object->_shifted_copies);
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                }
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            }
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        }
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        $self->flush_filters;
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    }
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    # write end commands to file
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    print $fh $gcodegen->retract;   # TODO: process this retract through PressureRegulator in order to discharge fully
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    print $fh $gcodegen->writer->set_fan(0);
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    printf $fh "%s\n", $gcodegen->placeholder_parser->process($self->config->end_gcode);
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    print $fh $gcodegen->writer->update_progress($gcodegen->layer_count, $gcodegen->layer_count, 1);  # 100%
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    $self->print->total_used_filament(0);
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    $self->print->total_extruded_volume(0);
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    foreach my $extruder (@{$gcodegen->writer->extruders}) {
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        my $used_filament = $extruder->used_filament;
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        my $extruded_volume = $extruder->extruded_volume;
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        printf $fh "; filament used = %.1fmm (%.1fcm3)\n",
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            $used_filament, $extruded_volume/1000;
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        $self->print->total_used_filament($self->print->total_used_filament + $used_filament);
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        $self->print->total_extruded_volume($self->print->total_extruded_volume + $extruded_volume);
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    }
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    # append full config
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    print $fh "\n";
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    foreach my $config ($self->print->config, $self->print->default_object_config, $self->print->default_region_config) {
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        foreach my $opt_key (sort @{$config->get_keys}) {
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            next if $Slic3r::Config::Options->{$opt_key}{shortcut};
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            printf $fh "; %s = %s\n", $opt_key, $config->serialize($opt_key);
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        }
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    }
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}
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sub _print_first_layer_temperature {
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    my ($self, $wait) = @_;
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    return if $self->config->start_gcode =~ /M(?:109|104)/i;
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    for my $t (@{$self->print->extruders}) {
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        my $temp = $self->config->get_at('first_layer_temperature', $t);
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        $temp += $self->config->standby_temperature_delta if $self->config->ooze_prevention;
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        printf {$self->fh} $self->_gcodegen->writer->set_temperature($temp, $wait, $t) if $temp > 0;
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    }
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}
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sub process_layer {
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    my $self = shift;
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    my ($layer, $object_copies) = @_;
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    my $gcode = "";
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    my $object = $layer->object;
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    $self->_gcodegen->config->apply_object_config($object->config);
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    # check whether we're going to apply spiralvase logic
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    if (defined $self->_spiral_vase) {
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        $self->_spiral_vase->enable(
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            ($layer->id > 0 || $self->print->config->brim_width == 0)
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                && ($layer->id >= $self->print->config->skirt_height && $self->print->config->skirt_height != -1)
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                && !defined(first { $_->config->bottom_solid_layers > $layer->id } @{$layer->regions})
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                && !defined(first { @{$_->perimeters} > 1 } @{$layer->regions})
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                && !defined(first { @{$_->fills} > 0 } @{$layer->regions})
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        );
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    }
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    # if we're going to apply spiralvase to this layer, disable loop clipping
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    $self->_gcodegen->enable_loop_clipping(!defined $self->_spiral_vase || !$self->_spiral_vase->enable);
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    if (!$self->_second_layer_things_done && $layer->id == 1) {
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        for my $extruder (@{$self->_gcodegen->writer->extruders}) {
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            my $temperature = $self->config->get_at('temperature', $extruder->id);
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            $gcode .= $self->_gcodegen->writer->set_temperature($temperature, 0, $extruder->id)
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                if $temperature && $temperature != $self->config->get_at('first_layer_temperature', $extruder->id);
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        }
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        $gcode .= $self->_gcodegen->writer->set_bed_temperature($self->print->config->bed_temperature)
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            if $self->print->config->bed_temperature && $self->print->config->bed_temperature != $self->print->config->first_layer_bed_temperature;
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        $self->_second_layer_things_done(1);
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    }
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    # set new layer - this will change Z and force a retraction if retract_layer_change is enabled
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    $gcode .= $self->_gcodegen->change_layer($layer);
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    $gcode .= $self->_gcodegen->placeholder_parser->process($self->print->config->layer_gcode, {
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        layer_num => $layer->id,
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    }) . "\n" if $self->print->config->layer_gcode;
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    # extrude skirt
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    if (((values %{$self->_skirt_done}) < $self->print->config->skirt_height || $self->print->config->skirt_height == -1)
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        && !$self->_skirt_done->{$layer->print_z}) {
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        $self->_gcodegen->set_origin(Slic3r::Pointf->new(0,0));
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        $self->_gcodegen->avoid_crossing_perimeters->use_external_mp(1);
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        my @extruder_ids = map { $_->id } @{$self->_gcodegen->writer->extruders};
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        $gcode .= $self->_gcodegen->set_extruder($extruder_ids[0]);
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        # skip skirt if we have a large brim
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        if ($layer->id < $self->print->config->skirt_height || $self->print->config->skirt_height == -1) {
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            my $skirt_flow = $self->print->skirt_flow;
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            # distribute skirt loops across all extruders
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            my @skirt_loops = @{$self->print->skirt};
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            for my $i (0 .. $#skirt_loops) {
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                # when printing layers > 0 ignore 'min_skirt_length' and 
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                # just use the 'skirts' setting; also just use the current extruder
 | 
						||
                last if ($layer->id > 0) && ($i >= $self->print->config->skirts);
 | 
						||
                my $extruder_id = $extruder_ids[($i/@extruder_ids) % @extruder_ids];
 | 
						||
                $gcode .= $self->_gcodegen->set_extruder($extruder_id)
 | 
						||
                    if $layer->id == 0;
 | 
						||
                
 | 
						||
                # adjust flow according to this layer's layer height
 | 
						||
                my $loop = $skirt_loops[$i]->clone;
 | 
						||
                {
 | 
						||
                    my $layer_skirt_flow = $skirt_flow->clone;
 | 
						||
                    $layer_skirt_flow->set_height($layer->height);
 | 
						||
                    my $mm3_per_mm = $layer_skirt_flow->mm3_per_mm;
 | 
						||
                    foreach my $path (@$loop) {
 | 
						||
                        $path->height($layer->height);
 | 
						||
                        $path->mm3_per_mm($mm3_per_mm);
 | 
						||
                    }
 | 
						||
                }
 | 
						||
                
 | 
						||
                $gcode .= $self->_gcodegen->extrude_loop($loop, 'skirt', $object->config->support_material_speed);
 | 
						||
            }
 | 
						||
        }
 | 
						||
        $self->_skirt_done->{$layer->print_z} = 1;
 | 
						||
        $self->_gcodegen->avoid_crossing_perimeters->use_external_mp(0);
 | 
						||
        
 | 
						||
        # allow a straight travel move to the first object point if this is the first layer
 | 
						||
        # (but don't in next layers)
 | 
						||
        if ($layer->id == 0) {
 | 
						||
            $self->_gcodegen->avoid_crossing_perimeters->disable_once(1);
 | 
						||
        }
 | 
						||
    }
 | 
						||
    
 | 
						||
    # extrude brim
 | 
						||
    if (!$self->_brim_done) {
 | 
						||
        $gcode .= $self->_gcodegen->set_extruder($self->print->regions->[0]->config->perimeter_extruder-1);
 | 
						||
        $self->_gcodegen->set_origin(Slic3r::Pointf->new(0,0));
 | 
						||
        $self->_gcodegen->avoid_crossing_perimeters->use_external_mp(1);
 | 
						||
        $gcode .= $self->_gcodegen->extrude_loop($_, 'brim', $object->config->support_material_speed)
 | 
						||
            for @{$self->print->brim};
 | 
						||
        $self->_brim_done(1);
 | 
						||
        $self->_gcodegen->avoid_crossing_perimeters->use_external_mp(0);
 | 
						||
        
 | 
						||
        # allow a straight travel move to the first object point
 | 
						||
        $self->_gcodegen->avoid_crossing_perimeters->disable_once(1);
 | 
						||
    }
 | 
						||
    
 | 
						||
    for my $copy (@$object_copies) {
 | 
						||
        # when starting a new object, use the external motion planner for the first travel move
 | 
						||
        $self->_gcodegen->avoid_crossing_perimeters->use_external_mp_once(1) if ($self->_last_obj_copy // '') ne "$copy";
 | 
						||
        $self->_last_obj_copy("$copy");
 | 
						||
        
 | 
						||
        $self->_gcodegen->set_origin(Slic3r::Pointf->new(map unscale $copy->[$_], X,Y));
 | 
						||
        
 | 
						||
        # extrude support material before other things because it might use a lower Z
 | 
						||
        # and also because we avoid travelling on other things when printing it
 | 
						||
        if ($layer->isa('Slic3r::Layer::Support')) {
 | 
						||
            if ($layer->support_interface_fills->count > 0) {
 | 
						||
                $gcode .= $self->_gcodegen->set_extruder($object->config->support_material_interface_extruder-1);
 | 
						||
                $gcode .= $self->_gcodegen->extrude_path($_, 'support material interface', $object->config->get_abs_value('support_material_interface_speed')) 
 | 
						||
                    for @{$layer->support_interface_fills->chained_path_from($self->_gcodegen->last_pos, 0)}; 
 | 
						||
            }
 | 
						||
            if ($layer->support_fills->count > 0) {
 | 
						||
                $gcode .= $self->_gcodegen->set_extruder($object->config->support_material_extruder-1);
 | 
						||
                $gcode .= $self->_gcodegen->extrude_path($_, 'support material', $object->config->get_abs_value('support_material_speed')) 
 | 
						||
                    for @{$layer->support_fills->chained_path_from($self->_gcodegen->last_pos, 0)};
 | 
						||
            }
 | 
						||
        }
 | 
						||
        
 | 
						||
        # We now define a strategy for building perimeters and fills. The separation 
 | 
						||
        # between regions doesn't matter in terms of printing order, as we follow 
 | 
						||
        # another logic instead:
 | 
						||
        # - we group all extrusions by extruder so that we minimize toolchanges
 | 
						||
        # - we start from the last used extruder
 | 
						||
        # - for each extruder, we group extrusions by island
 | 
						||
        # - for each island, we extrude perimeters first, unless user set the infill_first
 | 
						||
        #   option
 | 
						||
        
 | 
						||
        # group extrusions by extruder and then by island
 | 
						||
        my %by_extruder = ();  # extruder_id => [ { perimeters => \@perimeters, infill => \@infill } ]
 | 
						||
        
 | 
						||
        foreach my $region_id (0..($self->print->region_count-1)) {
 | 
						||
            my $layerm = $layer->regions->[$region_id] or next;
 | 
						||
            my $region = $self->print->get_region($region_id);
 | 
						||
            
 | 
						||
            # process perimeters
 | 
						||
            {
 | 
						||
                my $extruder_id = $region->config->perimeter_extruder-1;
 | 
						||
                foreach my $perimeter (@{$layerm->perimeters}) {
 | 
						||
                    # init by_extruder item only if we actually use the extruder
 | 
						||
                    $by_extruder{$extruder_id} //= [];
 | 
						||
                    
 | 
						||
                    # $perimeter is an ExtrusionLoop or ExtrusionPath object
 | 
						||
                    for my $i (0 .. $#{$layer->slices}) {
 | 
						||
                        if ($i == $#{$layer->slices}
 | 
						||
                            || $layer->slices->[$i]->contour->contains_point($perimeter->first_point)) {
 | 
						||
                            $by_extruder{$extruder_id}[$i] //= { perimeters => {} };
 | 
						||
                            $by_extruder{$extruder_id}[$i]{perimeters}{$region_id} //= [];
 | 
						||
                            push @{ $by_extruder{$extruder_id}[$i]{perimeters}{$region_id} }, $perimeter;
 | 
						||
                            last;
 | 
						||
                        }
 | 
						||
                    }
 | 
						||
                }
 | 
						||
            }
 | 
						||
            
 | 
						||
            # process infill
 | 
						||
            # $layerm->fills is a collection of ExtrusionPath::Collection objects, each one containing
 | 
						||
            # the ExtrusionPath objects of a certain infill "group" (also called "surface"
 | 
						||
            # throughout the code). We can redefine the order of such Collections but we have to 
 | 
						||
            # do each one completely at once.
 | 
						||
            foreach my $fill (@{$layerm->fills}) {
 | 
						||
                # init by_extruder item only if we actually use the extruder
 | 
						||
                my $extruder_id = $fill->[0]->is_solid_infill
 | 
						||
                    ? $region->config->solid_infill_extruder-1
 | 
						||
                    : $region->config->infill_extruder-1;
 | 
						||
                
 | 
						||
                $by_extruder{$extruder_id} //= [];
 | 
						||
                
 | 
						||
                # $fill is an ExtrusionPath::Collection object
 | 
						||
                for my $i (0 .. $#{$layer->slices}) {
 | 
						||
                    if ($i == $#{$layer->slices}
 | 
						||
                        || $layer->slices->[$i]->contour->contains_point($fill->first_point)) {
 | 
						||
                        $by_extruder{$extruder_id}[$i] //= { infill => {} };
 | 
						||
                        $by_extruder{$extruder_id}[$i]{infill}{$region_id} //= [];
 | 
						||
                        push @{ $by_extruder{$extruder_id}[$i]{infill}{$region_id} }, $fill;
 | 
						||
                        last;
 | 
						||
                    }
 | 
						||
                }
 | 
						||
            }
 | 
						||
        }
 | 
						||
        
 | 
						||
        # tweak extruder ordering to save toolchanges
 | 
						||
        my @extruders = sort keys %by_extruder;
 | 
						||
        if (@extruders > 1) {
 | 
						||
            my $last_extruder_id = $self->_gcodegen->writer->extruder->id;
 | 
						||
            if (exists $by_extruder{$last_extruder_id}) {
 | 
						||
                @extruders = (
 | 
						||
                    $last_extruder_id,
 | 
						||
                    grep $_ != $last_extruder_id, @extruders,
 | 
						||
                );
 | 
						||
            }
 | 
						||
        }
 | 
						||
        
 | 
						||
        foreach my $extruder_id (@extruders) {
 | 
						||
            $gcode .= $self->_gcodegen->set_extruder($extruder_id);
 | 
						||
            foreach my $island (@{ $by_extruder{$extruder_id} }) {
 | 
						||
                if ($self->print->config->infill_first) {
 | 
						||
                    $gcode .= $self->_extrude_infill($island->{infill} // {});
 | 
						||
                    $gcode .= $self->_extrude_perimeters($island->{perimeters} // {});
 | 
						||
                } else {
 | 
						||
                    $gcode .= $self->_extrude_perimeters($island->{perimeters} // {});
 | 
						||
                    $gcode .= $self->_extrude_infill($island->{infill} // {});
 | 
						||
                }
 | 
						||
            }
 | 
						||
        }
 | 
						||
    }
 | 
						||
    
 | 
						||
    # apply spiral vase post-processing if this layer contains suitable geometry
 | 
						||
    # (we must feed all the G-code into the post-processor, including the first 
 | 
						||
    # bottom non-spiral layers otherwise it will mess with positions)
 | 
						||
    # we apply spiral vase at this stage because it requires a full layer
 | 
						||
    $gcode = $self->_spiral_vase->process_layer($gcode)
 | 
						||
        if defined $self->_spiral_vase;
 | 
						||
    
 | 
						||
    # apply cooling logic; this may alter speeds
 | 
						||
    $gcode = $self->_cooling_buffer->append(
 | 
						||
        $gcode,
 | 
						||
        $layer->object->ptr . ref($layer),  # differentiate $obj_id between normal layers and support layers
 | 
						||
        $layer->id,
 | 
						||
        $layer->print_z,
 | 
						||
    ) if defined $self->_cooling_buffer;
 | 
						||
    
 | 
						||
    print {$self->fh} $self->filter($gcode);
 | 
						||
}
 | 
						||
 | 
						||
sub _extrude_perimeters {
 | 
						||
    my ($self, $entities_by_region) = @_;
 | 
						||
    
 | 
						||
    my $gcode = "";
 | 
						||
    foreach my $region_id (sort keys %$entities_by_region) {
 | 
						||
        $self->_gcodegen->config->apply_region_config($self->print->get_region($region_id)->config);
 | 
						||
        $gcode .= $self->_gcodegen->extrude($_, 'perimeter')
 | 
						||
            for @{ $entities_by_region->{$region_id} };
 | 
						||
    }
 | 
						||
    return $gcode;
 | 
						||
}
 | 
						||
 | 
						||
sub _extrude_infill {
 | 
						||
    my ($self, $entities_by_region) = @_;
 | 
						||
    
 | 
						||
    my $gcode = "";
 | 
						||
    foreach my $region_id (sort keys %$entities_by_region) {
 | 
						||
        $self->_gcodegen->config->apply_region_config($self->print->get_region($region_id)->config);
 | 
						||
        
 | 
						||
        my $collection = Slic3r::ExtrusionPath::Collection->new(@{ $entities_by_region->{$region_id} });
 | 
						||
        for my $fill (@{$collection->chained_path_from($self->_gcodegen->last_pos, 0)}) {
 | 
						||
            if ($fill->isa('Slic3r::ExtrusionPath::Collection')) {
 | 
						||
                $gcode .= $self->_gcodegen->extrude($_, 'infill') 
 | 
						||
                    for @{$fill->chained_path_from($self->_gcodegen->last_pos, 0)};
 | 
						||
            } else {
 | 
						||
                $gcode .= $self->_gcodegen->extrude($fill, 'infill') ;
 | 
						||
            }
 | 
						||
        }
 | 
						||
    }
 | 
						||
    return $gcode;
 | 
						||
}
 | 
						||
 | 
						||
sub flush_filters {
 | 
						||
    my ($self) = @_;
 | 
						||
    
 | 
						||
    print {$self->fh} $self->filter($self->_cooling_buffer->flush, 1);
 | 
						||
}
 | 
						||
 | 
						||
sub filter {
 | 
						||
    my ($self, $gcode, $flush) = @_;
 | 
						||
    
 | 
						||
    # apply vibration limit if enabled;
 | 
						||
    # this injects pauses according to time (thus depends on actual speeds)
 | 
						||
    $gcode = $self->_vibration_limit->process($gcode)
 | 
						||
        if defined $self->_vibration_limit;
 | 
						||
    
 | 
						||
    # apply pressure regulation if enabled;
 | 
						||
    # this depends on actual speeds
 | 
						||
    $gcode = $self->_pressure_regulator->process($gcode, $flush)
 | 
						||
        if defined $self->_pressure_regulator;
 | 
						||
    
 | 
						||
    # apply arc fitting if enabled;
 | 
						||
    # this does not depend on speeds but changes G1 XY commands into G2/G2 IJ
 | 
						||
    $gcode = $self->_arc_fitting->process($gcode)
 | 
						||
        if defined $self->_arc_fitting;
 | 
						||
    
 | 
						||
    return $gcode;
 | 
						||
}
 | 
						||
 | 
						||
1;
 |