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			671 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
			
		
		
	
	
			671 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
package Slic3r::GCode;
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use Moo;
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use List::Util qw(min max first);
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use Slic3r::ExtrusionPath ':roles';
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use Slic3r::Geometry qw(scale unscale scaled_epsilon points_coincide PI X Y B);
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use Slic3r::Geometry::Clipper qw(union_ex);
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has 'multiple_extruders' => (is => 'ro', default => sub {0} );
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has 'layer_count'        => (is => 'ro', required => 1 );
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has 'layer'              => (is => 'rw');
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has 'move_z_callback'    => (is => 'rw');
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has 'shift_x'            => (is => 'rw', default => sub {0} );
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has 'shift_y'            => (is => 'rw', default => sub {0} );
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has 'z'                  => (is => 'rw');
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has 'speed'              => (is => 'rw');
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has 'external_mp'        => (is => 'rw');
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has 'layer_mp'           => (is => 'rw');
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has 'new_object'         => (is => 'rw', default => sub {0});
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has 'straight_once'      => (is => 'rw', default => sub {1});
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has 'extruder'           => (is => 'rw');
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has 'extrusion_distance' => (is => 'rw', default => sub {0} );
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has 'elapsed_time'       => (is => 'rw', default => sub {0} );  # seconds
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has 'total_extrusion_length' => (is => 'rw', default => sub {0} );
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has 'lifted'             => (is => 'rw', default => sub {0} );
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has 'last_pos'           => (is => 'rw', default => sub { Slic3r::Point->new(0,0) } );
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has 'last_speed'         => (is => 'rw', default => sub {""});
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has 'last_f'             => (is => 'rw', default => sub {""});
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has 'last_fan_speed'     => (is => 'rw', default => sub {0});
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has 'dec'                => (is => 'ro', default => sub { 3 } );
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# used for vibration limit:
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has 'last_dir'           => (is => 'ro', default => sub { [0,0] });
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has 'dir_time'           => (is => 'ro', default => sub { [0,0] });
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# calculate speeds (mm/min)
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has 'speeds' => (
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    is      => 'ro',
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    default => sub {+{
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        map { $_ => 60 * $Slic3r::Config->get_value("${_}_speed") }
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            qw(travel perimeter small_perimeter external_perimeter infill
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                solid_infill top_solid_infill support_material bridge gap_fill retract),
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    }},
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);
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# assign speeds to roles
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my %role_speeds = (
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    &EXTR_ROLE_PERIMETER                    => 'perimeter',
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    &EXTR_ROLE_EXTERNAL_PERIMETER           => 'external_perimeter',
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    &EXTR_ROLE_CONTOUR_INTERNAL_PERIMETER   => 'perimeter',
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    &EXTR_ROLE_FILL                         => 'infill',
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    &EXTR_ROLE_SOLIDFILL                    => 'solid_infill',
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    &EXTR_ROLE_TOPSOLIDFILL                 => 'top_solid_infill',
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    &EXTR_ROLE_BRIDGE                       => 'bridge',
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    &EXTR_ROLE_INTERNALBRIDGE               => 'solid_infill',
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    &EXTR_ROLE_SKIRT                        => 'perimeter',
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    &EXTR_ROLE_SUPPORTMATERIAL              => 'support_material',
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    &EXTR_ROLE_GAPFILL                      => 'gap_fill',
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);
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sub set_shift {
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    my $self = shift;
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    my @shift = @_;
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    # if shift increases (goes towards right), last_pos decreases because it goes towards left
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    $self->last_pos->translate(
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        scale ($self->shift_x - $shift[X]),
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        scale ($self->shift_y - $shift[Y]),
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    );
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    $self->shift_x($shift[X]);
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    $self->shift_y($shift[Y]);
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}
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sub change_layer {
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    my $self = shift;
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    my ($layer) = @_;
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    $self->layer($layer);
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    if ($Slic3r::Config->avoid_crossing_perimeters) {
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        $self->layer_mp(Slic3r::GCode::MotionPlanner->new(
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            islands => union_ex([ map @$_, @{$layer->slices} ], undef, 1),
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        ));
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    }
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    my $gcode = "";
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    if ($Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/) {
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        $gcode .= sprintf "M73 P%s%s\n",
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            int(99 * ($layer->id / ($self->layer_count - 1))),
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            ($Slic3r::Config->gcode_comments ? ' ; update progress' : '');
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    }
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    return $gcode;
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}
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# this method accepts Z in scaled coordinates
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sub move_z {
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    my $self = shift;
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    my ($z, $comment) = @_;
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    $z *= &Slic3r::SCALING_FACTOR;
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    $z += $Slic3r::Config->z_offset;
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    my $gcode = "";
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    my $current_z = $self->z;
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    if (!defined $current_z || $current_z != ($z + $self->lifted)) {
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        $gcode .= $self->retract(move_z => $z) if $self->extruder->retract_layer_change;
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        $self->speed('travel');
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        $gcode .= $self->G0(undef, $z, 0, $comment || ('move to next layer (' . $self->layer->id . ')'))
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            unless ($current_z // -1) != ($self->z // -1);
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        $gcode .= $self->move_z_callback->() if defined $self->move_z_callback;
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    }
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    return $gcode;
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}
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sub extrude {
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    my $self = shift;
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    ($_[0]->isa('Slic3r::ExtrusionLoop') || $_[0]->isa('Slic3r::ExtrusionLoop::Packed'))
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        ? $self->extrude_loop(@_)
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        : $self->extrude_path(@_);
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}
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sub extrude_loop {
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    my $self = shift;
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    my ($loop, $description) = @_;
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    # extrude all loops ccw
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    $loop = $loop->unpack if $loop->isa('Slic3r::ExtrusionLoop::Packed');
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    my $was_clockwise = $loop->polygon->make_counter_clockwise;
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    # find the point of the loop that is closest to the current extruder position
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    # or randomize if requested
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    my $last_pos = $self->last_pos;
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    if ($Slic3r::Config->randomize_start && $loop->role == EXTR_ROLE_CONTOUR_INTERNAL_PERIMETER) {
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        $last_pos = Slic3r::Point->new(scale $Slic3r::Config->print_center->[X], scale $Slic3r::Config->bed_size->[Y]);
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        $last_pos->rotate(rand(2*PI), $Slic3r::Config->print_center);
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    }
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    my $start_index = $loop->nearest_point_index_to($last_pos);
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    # split the loop at the starting point and make a path
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    my $extrusion_path = $loop->split_at_index($start_index);
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    # clip the path to avoid the extruder to get exactly on the first point of the loop;
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    # if polyline was shorter than the clipping distance we'd get a null polyline, so
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    # we discard it in that case
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    $extrusion_path->clip_end(scale $extrusion_path->flow_spacing * &Slic3r::LOOP_CLIPPING_LENGTH_OVER_SPACING);
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    return '' if !@{$extrusion_path->polyline};
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    # extrude along the path
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    my $gcode = $self->extrude_path($extrusion_path, $description);
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    # make a little move inwards before leaving loop
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    if ($loop->role == EXTR_ROLE_EXTERNAL_PERIMETER) {
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        # detect angle between last and first segment
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        # the side depends on the original winding order of the polygon (left for contours, right for holes)
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        my @points = $was_clockwise ? (-2, 1) : (1, -2);
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        my $angle = Slic3r::Geometry::angle3points(@{$extrusion_path->polyline}[0, @points]) / 3;
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        $angle *= -1 if $was_clockwise;
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        # create the destination point along the first segment and rotate it
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        # we make sure we don't exceed the segment length because we don't know
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        # the rotation of the second segment so we might cross the object boundary
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        my $first_segment = Slic3r::Line->new(@{$extrusion_path->polyline}[0,1]);
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        my $distance = min(scale $extrusion_path->flow_spacing, $first_segment->length);
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        my $point = Slic3r::Geometry::point_along_segment(@$first_segment, $distance);
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        bless $point, 'Slic3r::Point';
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        $point->rotate($angle, $extrusion_path->polyline->[0]);
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        # generate the travel move
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        $gcode .= $self->travel_to($point, $loop->role, "move inwards before travel");
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    }
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    return $gcode;
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}
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sub extrude_path {
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    my $self = shift;
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    my ($path, $description, $recursive) = @_;
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    $path = $path->unpack if $path->isa('Slic3r::ExtrusionPath::Packed');
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    $path->simplify(&Slic3r::SCALED_RESOLUTION);
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    # detect arcs
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    if ($Slic3r::Config->gcode_arcs && !$recursive) {
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        my $gcode = "";
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        foreach my $arc_path ($path->detect_arcs) {
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            $gcode .= $self->extrude_path($arc_path, $description, 1);
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        }
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        return $gcode;
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    }
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    # go to first point of extrusion path
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    my $gcode = "";
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    $gcode .= $self->travel_to($path->points->[0], $path->role, "move to first $description point");
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    # compensate retraction
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    $gcode .= $self->unretract;
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    # adjust acceleration
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    my $acceleration;
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    if ($Slic3r::Config->perimeter_acceleration && $path->is_perimeter) {
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        $acceleration = $Slic3r::Config->perimeter_acceleration;
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    } elsif ($Slic3r::Config->infill_acceleration && $path->is_fill) {
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        $acceleration = $Slic3r::Config->infill_acceleration;
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    } elsif ($Slic3r::Config->infill_acceleration && ($path->role == EXTR_ROLE_BRIDGE || $path->role == EXTR_ROLE_INTERNALBRIDGE)) {
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        $acceleration = $Slic3r::Config->bridge_acceleration;
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    }
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    $gcode .= $self->set_acceleration($acceleration) if $acceleration;
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    my $area;  # mm^3 of extrudate per mm of tool movement 
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    if ($path->role == EXTR_ROLE_BRIDGE || $path->role == EXTR_ROLE_INTERNALBRIDGE) {
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        my $s = $path->flow_spacing;
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        $area = ($s**2) * PI/4;
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    } else {
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        my $s = $path->flow_spacing;
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        my $h = $path->height // $self->layer->height;
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        $area = $self->extruder->mm3_per_mm($s, $h);
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    }
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    # calculate extrusion length per distance unit
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    my $e = $self->extruder->e_per_mm3 * $area;
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    # set speed
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    $self->speed( $role_speeds{$path->role} || die "Unknown role: " . $path->role );
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    if ($path->role == EXTR_ROLE_PERIMETER || $path->role == EXTR_ROLE_EXTERNAL_PERIMETER || $path->role == EXTR_ROLE_CONTOUR_INTERNAL_PERIMETER) {
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        if (abs($path->length) <= &Slic3r::SMALL_PERIMETER_LENGTH) {
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            $self->speed('small_perimeter');
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        }
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    }
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    # extrude arc or line
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    my $path_length = 0;
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    if ($path->isa('Slic3r::ExtrusionPath::Arc')) {
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        $path_length = unscale $path->length;
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        $gcode .= $self->G2_G3($path->points->[-1], $path->orientation, 
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            $path->center, $e * unscale $path_length, $description);
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    } else {
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        foreach my $line ($path->lines) {
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            my $line_length = unscale $line->length;
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            $path_length += $line_length;
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            $gcode .= $self->G1($line->[B], undef, $e * $line_length, $description);
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        }
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    }
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    if ($Slic3r::Config->cooling) {
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        my $path_time = $path_length / $self->speeds->{$self->last_speed} * 60;
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        if ($self->layer->id == 0) {
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            $path_time = $Slic3r::Config->first_layer_speed =~ /^(\d+(?:\.\d+)?)%$/
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                ? $path_time / ($1/100)
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                : $path_length / $Slic3r::Config->first_layer_speed * 60;
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        }
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        $self->elapsed_time($self->elapsed_time + $path_time);
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    }
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    # reset acceleration
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    $gcode .= $self->set_acceleration($Slic3r::Config->default_acceleration)
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        if $acceleration && $Slic3r::Config->default_acceleration;
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    return $gcode;
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}
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sub travel_to {
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    my $self = shift;
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    my ($point, $role, $comment) = @_;
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    my $gcode = "";
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    my $travel = Slic3r::Line->new($self->last_pos->clone, $point->clone);
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    # move travel back to original layer coordinates for the island check.
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    # note that we're only considering the current object's islands, while we should
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    # build a more complete configuration space
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    $travel->translate(-$self->shift_x, -$self->shift_y);
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    if ($travel->length < scale $self->extruder->retract_before_travel
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        || ($Slic3r::Config->only_retract_when_crossing_perimeters && first { $_->encloses_line($travel, scaled_epsilon) } @{$self->layer->slices})
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        || ($role == EXTR_ROLE_SUPPORTMATERIAL && $self->layer->support_islands_enclose_line($travel))
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        ) {
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        $self->straight_once(0);
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        $self->speed('travel');
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        $gcode .= $self->G0($point, undef, 0, $comment || "");
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    } elsif (!$Slic3r::Config->avoid_crossing_perimeters || $self->straight_once) {
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        $self->straight_once(0);
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        $gcode .= $self->retract(travel_to => $point);
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        $self->speed('travel');
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        $gcode .= $self->G0($point, undef, 0, $comment || "");
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    } else {
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        my $plan = sub {
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            my $mp = shift;
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            my $gcode = "";
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            my @travel = $mp->shortest_path($self->last_pos, $point)->lines;
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            # if the path is not contained in a single island we need to retract
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            my $need_retract = !$Slic3r::Config->only_retract_when_crossing_perimeters;
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            if (!$need_retract) {
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                $need_retract = 1;
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                foreach my $slice (@{$self->layer->slices}) {
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                    # discard the island if at any line is not enclosed in it
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                    next if first { !$slice->encloses_line($_, scaled_epsilon) } @travel;
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                    # okay, this island encloses the full travel path
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                    $need_retract = 0;
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                    last;
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                }
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            }
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            # do the retract (the travel_to argument is broken)
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            $gcode .= $self->retract(travel_to => $point) if $need_retract;
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            # append the actual path and return
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            $self->speed('travel');
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            $gcode .= join '', map $self->G0($_->[B], undef, 0, $comment || ""), @travel;
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            return $gcode;
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        };
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        if ($self->new_object) {
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            $self->new_object(0);
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            # represent $point in G-code coordinates
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            $point = $point->clone;
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            my @shift = ($self->shift_x, $self->shift_y);
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            $point->translate(map scale $_, @shift);
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            # calculate path (external_mp uses G-code coordinates so we temporary need a null shift)
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            $self->set_shift(0,0);
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            $gcode .= $plan->($self->external_mp);
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            $self->set_shift(@shift);
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        } else {
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            $gcode .= $plan->($self->layer_mp);
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        }
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    }
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    return $gcode;
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}
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sub retract {
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    my $self = shift;
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    my %params = @_;
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    # get the retraction length and abort if none
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    my ($length, $restart_extra, $comment) = $params{toolchange}
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        ? ($self->extruder->retract_length_toolchange,  $self->extruder->retract_restart_extra_toolchange,  "retract for tool change")
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        : ($self->extruder->retract_length,             $self->extruder->retract_restart_extra,             "retract");
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    # if we already retracted, reduce the required amount of retraction
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    $length -= $self->extruder->retracted;
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    return "" unless $length > 0;
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    # prepare moves
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    $self->speed('retract');
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    my $retract = [undef, undef, -$length, $comment];
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    my $lift    = ($self->extruder->retract_lift == 0 || defined $params{move_z}) && !$self->lifted
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        ? undef
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        : [undef, $self->z + $self->extruder->retract_lift, 0, 'lift plate during travel'];
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    my $gcode = "";
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    if (($Slic3r::Config->g0 || $Slic3r::Config->gcode_flavor eq 'mach3') && $params{travel_to}) {
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        if ($lift) {
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						|
            # combine lift and retract
 | 
						|
            $lift->[2] = $retract->[2];
 | 
						|
            $gcode .= $self->G0(@$lift);
 | 
						|
        } else {
 | 
						|
            # combine travel and retract
 | 
						|
            my $travel = [$params{travel_to}, undef, $retract->[2], "travel and $comment"];
 | 
						|
            $gcode .= $self->G0(@$travel);
 | 
						|
        }
 | 
						|
    } elsif (($Slic3r::Config->g0 || $Slic3r::Config->gcode_flavor eq 'mach3') && defined $params{move_z}) {
 | 
						|
        # combine Z change and retraction
 | 
						|
        my $travel = [undef, $params{move_z}, $retract->[2], "change layer and $comment"];
 | 
						|
        $gcode .= $self->G0(@$travel);
 | 
						|
    } else {
 | 
						|
        $gcode .= $self->G1(@$retract);
 | 
						|
        if (!$self->lifted) {
 | 
						|
            if (defined $params{move_z} && $self->extruder->retract_lift > 0) {
 | 
						|
                my $travel = [undef, $params{move_z} + $self->extruder->retract_lift, 0, 'move to next layer (' . $self->layer->id . ') and lift'];
 | 
						|
                $gcode .= $self->G0(@$travel);
 | 
						|
                $self->lifted($self->extruder->retract_lift);
 | 
						|
            } elsif ($lift) {
 | 
						|
                $gcode .= $self->G1(@$lift);
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
    $self->extruder->retracted($self->extruder->retracted + $length);
 | 
						|
    $self->extruder->restart_extra($restart_extra);
 | 
						|
    $self->lifted($self->extruder->retract_lift) if $lift;
 | 
						|
    
 | 
						|
    # reset extrusion distance during retracts
 | 
						|
    # this makes sure we leave sufficient precision in the firmware
 | 
						|
    $gcode .= $self->reset_e if $Slic3r::Config->gcode_flavor !~ /^(?:mach3|makerbot)$/;
 | 
						|
    
 | 
						|
    return $gcode;
 | 
						|
}
 | 
						|
 | 
						|
sub unretract {
 | 
						|
    my $self = shift;
 | 
						|
    
 | 
						|
    my $gcode = "";
 | 
						|
    
 | 
						|
    if ($self->lifted) {
 | 
						|
        $self->speed('travel');
 | 
						|
        $gcode .= $self->G0(undef, $self->z - $self->lifted, 0, 'restore layer Z');
 | 
						|
        $self->lifted(0);
 | 
						|
    }
 | 
						|
    
 | 
						|
    my $to_unretract = $self->extruder->retracted + $self->extruder->restart_extra;
 | 
						|
    if ($to_unretract) {
 | 
						|
        $self->speed('retract');
 | 
						|
        $gcode .= $self->G0(undef, undef, $to_unretract, "compensate retraction");
 | 
						|
        $self->extruder->retracted(0);
 | 
						|
        $self->extruder->restart_extra(0);
 | 
						|
    }
 | 
						|
    
 | 
						|
    return $gcode;
 | 
						|
}
 | 
						|
 | 
						|
sub reset_e {
 | 
						|
    my $self = shift;
 | 
						|
    
 | 
						|
    $self->extrusion_distance(0);
 | 
						|
    return sprintf "G92 %s0%s\n", $Slic3r::Config->extrusion_axis, ($Slic3r::Config->gcode_comments ? ' ; reset extrusion distance' : '')
 | 
						|
        if $Slic3r::Config->extrusion_axis && !$Slic3r::Config->use_relative_e_distances;
 | 
						|
}
 | 
						|
 | 
						|
sub set_acceleration {
 | 
						|
    my $self = shift;
 | 
						|
    my ($acceleration) = @_;
 | 
						|
    return "" if !$acceleration;
 | 
						|
    
 | 
						|
    return sprintf "M204 S%s%s\n",
 | 
						|
        $acceleration, ($Slic3r::Config->gcode_comments ? ' ; adjust acceleration' : '');
 | 
						|
}
 | 
						|
 | 
						|
sub G0 {
 | 
						|
    my $self = shift;
 | 
						|
    return $self->G1(@_) if !($Slic3r::Config->g0 || $Slic3r::Config->gcode_flavor eq 'mach3');
 | 
						|
    return $self->_G0_G1("G0", @_);
 | 
						|
}
 | 
						|
 | 
						|
sub G1 {
 | 
						|
    my $self = shift;
 | 
						|
    return $self->_G0_G1("G1", @_);
 | 
						|
}
 | 
						|
 | 
						|
sub _G0_G1 {
 | 
						|
    my $self = shift;
 | 
						|
    my ($gcode, $point, $z, $e, $comment) = @_;
 | 
						|
    my $dec = $self->dec;
 | 
						|
    
 | 
						|
    if ($point) {
 | 
						|
        $gcode .= sprintf " X%.${dec}f Y%.${dec}f", 
 | 
						|
            ($point->x * &Slic3r::SCALING_FACTOR) + $self->shift_x - $self->extruder->extruder_offset->[X], 
 | 
						|
            ($point->y * &Slic3r::SCALING_FACTOR) + $self->shift_y - $self->extruder->extruder_offset->[Y]; #**
 | 
						|
        $gcode = $self->_limit_frequency($point) . $gcode;
 | 
						|
        $self->last_pos($point->clone);
 | 
						|
    }
 | 
						|
    if (defined $z && (!defined $self->z || $z != $self->z)) {
 | 
						|
        $self->z($z);
 | 
						|
        $gcode .= sprintf " Z%.${dec}f", $z;
 | 
						|
    }
 | 
						|
    
 | 
						|
    return $self->_Gx($gcode, $e, $comment);
 | 
						|
}
 | 
						|
 | 
						|
sub G2_G3 {
 | 
						|
    my $self = shift;
 | 
						|
    my ($point, $orientation, $center, $e, $comment) = @_;
 | 
						|
    my $dec = $self->dec;
 | 
						|
    
 | 
						|
    my $gcode = $orientation eq 'cw' ? "G2" : "G3";
 | 
						|
    
 | 
						|
    $gcode .= sprintf " X%.${dec}f Y%.${dec}f", 
 | 
						|
        ($point->x * &Slic3r::SCALING_FACTOR) + $self->shift_x - $self->extruder->extruder_offset->[X], 
 | 
						|
        ($point->y * &Slic3r::SCALING_FACTOR) + $self->shift_y - $self->extruder->extruder_offset->[Y]; #**
 | 
						|
    
 | 
						|
    # XY distance of the center from the start position
 | 
						|
    $gcode .= sprintf " I%.${dec}f J%.${dec}f",
 | 
						|
        ($center->[X] - $self->last_pos->[X]) * &Slic3r::SCALING_FACTOR,
 | 
						|
        ($center->[Y] - $self->last_pos->[Y]) * &Slic3r::SCALING_FACTOR;
 | 
						|
    
 | 
						|
    $self->last_pos($point);
 | 
						|
    return $self->_Gx($gcode, $e, $comment);
 | 
						|
}
 | 
						|
 | 
						|
sub _Gx {
 | 
						|
    my $self = shift;
 | 
						|
    my ($gcode, $e, $comment) = @_;
 | 
						|
    my $dec = $self->dec;
 | 
						|
    
 | 
						|
    # output speed if it's different from last one used
 | 
						|
    # (goal: reduce gcode size)
 | 
						|
    my $append_bridge_off = 0;
 | 
						|
    my $F;
 | 
						|
    if ($self->speed ne $self->last_speed) {
 | 
						|
        if ($self->speed eq 'bridge') {
 | 
						|
            $gcode = ";_BRIDGE_FAN_START\n$gcode";
 | 
						|
        } elsif ($self->last_speed eq 'bridge') {
 | 
						|
            $append_bridge_off = 1;
 | 
						|
        }
 | 
						|
        
 | 
						|
        # apply the speed reduction for print moves on bottom layer
 | 
						|
        $F = $self->speed eq 'retract'
 | 
						|
            ? ($self->extruder->retract_speed_mm_min)
 | 
						|
            : $self->speeds->{$self->speed} // $self->speed;
 | 
						|
        if ($e && $self->layer && $self->layer->id == 0 && $comment !~ /retract/) {
 | 
						|
            $F = $Slic3r::Config->first_layer_speed =~ /^(\d+(?:\.\d+)?)%$/
 | 
						|
                ? ($F * $1/100)
 | 
						|
                : $Slic3r::Config->first_layer_speed * 60;
 | 
						|
        }
 | 
						|
        $self->last_speed($self->speed);
 | 
						|
        $self->last_f($F);
 | 
						|
    }
 | 
						|
    $gcode .= sprintf " F%.${dec}f", $F if defined $F;
 | 
						|
    
 | 
						|
    # output extrusion distance
 | 
						|
    if ($e && $Slic3r::Config->extrusion_axis) {
 | 
						|
        $self->extrusion_distance(0) if $Slic3r::Config->use_relative_e_distances;
 | 
						|
        $self->extrusion_distance($self->extrusion_distance + $e);
 | 
						|
        $self->total_extrusion_length($self->total_extrusion_length + $e);
 | 
						|
        $gcode .= sprintf " %s%.5f", $Slic3r::Config->extrusion_axis, $self->extrusion_distance;
 | 
						|
    }
 | 
						|
    
 | 
						|
    $gcode .= sprintf " ; %s", $comment if $comment && $Slic3r::Config->gcode_comments;
 | 
						|
    if ($append_bridge_off) {
 | 
						|
        $gcode .= "\n;_BRIDGE_FAN_END";
 | 
						|
    }
 | 
						|
    return "$gcode\n";
 | 
						|
}
 | 
						|
 | 
						|
sub set_extruder {
 | 
						|
    my $self = shift;
 | 
						|
    my ($extruder) = @_;
 | 
						|
    
 | 
						|
    # return nothing if this extruder was already selected
 | 
						|
    return "" if (defined $self->extruder) && ($self->extruder->id == $extruder->id);
 | 
						|
    
 | 
						|
    # if we are running a single-extruder setup, just set the extruder and return nothing
 | 
						|
    if (!$self->multiple_extruders) {
 | 
						|
        $self->extruder($extruder);
 | 
						|
        return "";
 | 
						|
    }
 | 
						|
    
 | 
						|
    # trigger retraction on the current extruder (if any) 
 | 
						|
    my $gcode = "";
 | 
						|
    $gcode .= $self->retract(toolchange => 1) if defined $self->extruder;
 | 
						|
    
 | 
						|
    # append custom toolchange G-code
 | 
						|
    if (defined $self->extruder && $Slic3r::Config->toolchange_gcode) {
 | 
						|
        $gcode .= sprintf "%s\n", $Slic3r::Config->replace_options($Slic3r::Config->toolchange_gcode, {
 | 
						|
            previous_extruder   => $self->extruder->id,
 | 
						|
            next_extruder       => $extruder->id,
 | 
						|
        });
 | 
						|
    }
 | 
						|
    
 | 
						|
    # set the new extruder
 | 
						|
    $self->extruder($extruder);
 | 
						|
    my $toolchange_gcode = sprintf "%s%d%s\n", 
 | 
						|
        ($Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/ ? 'M108 T' : 'T'),
 | 
						|
        $extruder->id,
 | 
						|
        ($Slic3r::Config->gcode_comments ? ' ; change extruder' : '');
 | 
						|
    
 | 
						|
    if ($Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/) {
 | 
						|
        $gcode .= $self->reset_e;
 | 
						|
        $gcode .= $toolchange_gcode;
 | 
						|
    } else {
 | 
						|
        $gcode .= $toolchange_gcode;
 | 
						|
        $gcode .= $self->reset_e;
 | 
						|
    }
 | 
						|
    
 | 
						|
    return $gcode;
 | 
						|
}
 | 
						|
 | 
						|
sub set_fan {
 | 
						|
    my $self = shift;
 | 
						|
    my ($speed, $dont_save) = @_;
 | 
						|
    
 | 
						|
    if ($self->last_fan_speed != $speed || $dont_save) {
 | 
						|
        $self->last_fan_speed($speed) if !$dont_save;
 | 
						|
        if ($speed == 0) {
 | 
						|
            my $code = $Slic3r::Config->gcode_flavor eq 'teacup'
 | 
						|
                ? 'M106 S0'
 | 
						|
                : $Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/
 | 
						|
                    ? 'M127'
 | 
						|
                    : 'M107';
 | 
						|
            return sprintf "$code%s\n", ($Slic3r::Config->gcode_comments ? ' ; disable fan' : '');
 | 
						|
        } else {
 | 
						|
            if ($Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/) {
 | 
						|
                return sprintf "M126%s\n", ($Slic3r::Config->gcode_comments ? ' ; enable fan' : '');
 | 
						|
            } else {
 | 
						|
                return sprintf "M106 %s%d%s\n", ($Slic3r::Config->gcode_flavor eq 'mach3' ? 'P' : 'S'),
 | 
						|
                    (255 * $speed / 100), ($Slic3r::Config->gcode_comments ? ' ; enable fan' : '');
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
    return "";
 | 
						|
}
 | 
						|
 | 
						|
sub set_temperature {
 | 
						|
    my $self = shift;
 | 
						|
    my ($temperature, $wait, $tool) = @_;
 | 
						|
    
 | 
						|
    return "" if $wait && $Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/;
 | 
						|
    
 | 
						|
    my ($code, $comment) = ($wait && $Slic3r::Config->gcode_flavor ne 'teacup')
 | 
						|
        ? ('M109', 'wait for temperature to be reached')
 | 
						|
        : ('M104', 'set temperature');
 | 
						|
    my $gcode = sprintf "$code %s%d %s; $comment\n",
 | 
						|
        ($Slic3r::Config->gcode_flavor eq 'mach3' ? 'P' : 'S'), $temperature,
 | 
						|
        (defined $tool && ($self->multiple_extruders || $Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/)) ? "T$tool " : "";
 | 
						|
    
 | 
						|
    $gcode .= "M116 ; wait for temperature to be reached\n"
 | 
						|
        if $Slic3r::Config->gcode_flavor eq 'teacup' && $wait;
 | 
						|
    
 | 
						|
    return $gcode;
 | 
						|
}
 | 
						|
 | 
						|
sub set_bed_temperature {
 | 
						|
    my $self = shift;
 | 
						|
    my ($temperature, $wait) = @_;
 | 
						|
    
 | 
						|
    my ($code, $comment) = ($wait && $Slic3r::Config->gcode_flavor ne 'teacup')
 | 
						|
        ? (($Slic3r::Config->gcode_flavor =~ /^(?:makerbot|sailfish)$/ ? 'M109' : 'M190'), 'wait for bed temperature to be reached')
 | 
						|
        : ('M140', 'set bed temperature');
 | 
						|
    my $gcode = sprintf "$code %s%d ; $comment\n",
 | 
						|
        ($Slic3r::Config->gcode_flavor eq 'mach3' ? 'P' : 'S'), $temperature;
 | 
						|
    
 | 
						|
    $gcode .= "M116 ; wait for bed temperature to be reached\n"
 | 
						|
        if $Slic3r::Config->gcode_flavor eq 'teacup' && $wait;
 | 
						|
    
 | 
						|
    return $gcode;
 | 
						|
}
 | 
						|
 | 
						|
# http://hydraraptor.blogspot.it/2010/12/frequency-limit.html
 | 
						|
sub _limit_frequency {
 | 
						|
    my $self = shift;
 | 
						|
    my ($point) = @_;
 | 
						|
    
 | 
						|
    return '' if $Slic3r::Config->vibration_limit == 0;
 | 
						|
    my $min_time = 1 / ($Slic3r::Config->vibration_limit * 60);  # in minutes
 | 
						|
    
 | 
						|
    # calculate the move vector and move direction
 | 
						|
    my $vector = Slic3r::Line->new($self->last_pos, $point)->vector;
 | 
						|
    my @dir = map { $vector->[B][$_] <=> 0 } X,Y;
 | 
						|
    
 | 
						|
    my $time = (unscale $vector->length) / $self->speeds->{$self->speed};  # in minutes
 | 
						|
    if ($time > 0) {
 | 
						|
        my @pause = ();
 | 
						|
        foreach my $axis (X,Y) {
 | 
						|
            if ($dir[$axis] != 0 && $self->last_dir->[$axis] != $dir[$axis]) {
 | 
						|
                if ($self->last_dir->[$axis] != 0) {
 | 
						|
                    # this axis is changing direction: check whether we need to pause
 | 
						|
                    if ($self->dir_time->[$axis] < $min_time) {
 | 
						|
                        push @pause, ($min_time - $self->dir_time->[$axis]);
 | 
						|
                    }
 | 
						|
                }
 | 
						|
                $self->last_dir->[$axis] = $dir[$axis];
 | 
						|
                $self->dir_time->[$axis] = 0;
 | 
						|
            }
 | 
						|
            $self->dir_time->[$axis] += $time;
 | 
						|
        }
 | 
						|
        
 | 
						|
        if (@pause) {
 | 
						|
            return sprintf "G4 P%d\n", max(@pause) * 60 * 1000;
 | 
						|
        }
 | 
						|
    }
 | 
						|
    
 | 
						|
    return '';
 | 
						|
}
 | 
						|
 | 
						|
1;
 |