770 lines
31 KiB
Perl
770 lines
31 KiB
Perl
package Slic3r::Print;
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use strict;
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use warnings;
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use File::Basename qw(basename fileparse);
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use File::Spec;
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use List::Util qw(min max first sum);
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use Slic3r::ExtrusionPath ':roles';
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use Slic3r::Flow ':roles';
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use Slic3r::Geometry qw(X Y Z X1 Y1 X2 Y2 MIN MAX PI scale unscale chained_path
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convex_hull);
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use Slic3r::Geometry::Clipper qw(diff_ex union_ex intersection_ex intersection offset
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offset2 union union_pt_chained JT_ROUND JT_SQUARE);
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use Slic3r::Print::State ':steps';
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our $status_cb;
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sub new {
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# TODO: port PlaceholderParser methods to C++, then its own constructor
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# can call them and no need for this new() method at all
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my ($class) = @_;
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my $self = $class->_new;
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$self->placeholder_parser->apply_env_variables;
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$self->placeholder_parser->update_timestamp;
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return $self;
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}
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sub set_status_cb {
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my ($class, $cb) = @_;
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$status_cb = $cb;
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}
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sub status_cb {
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return $status_cb // sub {};
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}
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sub reload_object {
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my ($self, $obj_idx) = @_;
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# TODO: this method should check whether the per-object config and per-material configs
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# have changed in such a way that regions need to be rearranged or we can just apply
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# the diff and invalidate something. Same logic as apply_config()
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# For now we just re-add all objects since we haven't implemented this incremental logic yet.
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# This should also check whether object volumes (parts) have changed.
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my @models_objects = map $_->model_object, @{$self->objects};
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$self->clear_objects;
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$self->add_model_object($_) for @models_objects;
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}
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# this value is not supposed to be compared with $layer->id
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# since they have different semantics
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sub total_layer_count {
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my $self = shift;
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return max(map $_->total_layer_count, @{$self->objects});
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}
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# the bounding box of objects placed in copies position
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# (without taking skirt/brim/support material into account)
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sub bounding_box {
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my $self = shift;
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my @points = ();
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foreach my $object (@{$self->objects}) {
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foreach my $copy (@{$object->_shifted_copies}) {
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push @points,
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[ $copy->[X], $copy->[Y] ],
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[ $copy->[X] + $object->size->[X], $copy->[Y] + $object->size->[Y] ];
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}
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}
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return Slic3r::Geometry::BoundingBox->new_from_points([ map Slic3r::Point->new(@$_), @points ]);
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}
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# the total bounding box of extrusions, including skirt/brim/support material
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sub total_bounding_box {
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my ($self) = @_;
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# get objects bounding box
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my $bb = $self->bounding_box;
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# check how much we need to increase it
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my $extra = 0;
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if ($self->has_support_material) {
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$extra = &Slic3r::Print::SupportMaterial::MARGIN;
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}
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$extra = max($extra, $self->config->brim_width);
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if ($self->config->skirts > 0) {
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my $skirt_flow = $self->skirt_flow;
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$extra = max($extra, $self->config->brim_width + $self->config->skirt_distance + ($self->config->skirts * $skirt_flow->spacing));
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}
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if ($extra > 0) {
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$bb->offset(scale $extra);
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}
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return $bb;
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}
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sub size {
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my $self = shift;
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return $self->bounding_box->size;
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}
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sub process {
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my ($self) = @_;
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$_->make_perimeters for @{$self->objects};
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$_->infill for @{$self->objects};
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$_->generate_support_material for @{$self->objects};
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$self->make_skirt;
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$self->make_brim; # must come after make_skirt
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# time to make some statistics
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if (0) {
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eval "use Devel::Size";
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print "MEMORY USAGE:\n";
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printf " meshes = %.1fMb\n", List::Util::sum(map Devel::Size::total_size($_->meshes), @{$self->objects})/1024/1024;
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printf " layer slices = %.1fMb\n", List::Util::sum(map Devel::Size::total_size($_->slices), map @{$_->layers}, @{$self->objects})/1024/1024;
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printf " region slices = %.1fMb\n", List::Util::sum(map Devel::Size::total_size($_->slices), map @{$_->regions}, map @{$_->layers}, @{$self->objects})/1024/1024;
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printf " perimeters = %.1fMb\n", List::Util::sum(map Devel::Size::total_size($_->perimeters), map @{$_->regions}, map @{$_->layers}, @{$self->objects})/1024/1024;
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printf " fills = %.1fMb\n", List::Util::sum(map Devel::Size::total_size($_->fills), map @{$_->regions}, map @{$_->layers}, @{$self->objects})/1024/1024;
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printf " print object = %.1fMb\n", Devel::Size::total_size($self)/1024/1024;
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}
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if (0) {
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eval "use Slic3r::Test::SectionCut";
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Slic3r::Test::SectionCut->new(print => $self)->export_svg("section_cut.svg");
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}
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}
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sub export_gcode {
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my $self = shift;
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my %params = @_;
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# prerequisites
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$self->process;
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# output everything to a G-code file
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my $output_file = $self->expanded_output_filepath($params{output_file});
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$self->status_cb->(90, "Exporting G-code" . ($output_file ? " to $output_file" : ""));
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$self->write_gcode($params{output_fh} || $output_file);
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# run post-processing scripts
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if (@{$self->config->post_process}) {
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$self->status_cb->(95, "Running post-processing scripts");
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$self->config->setenv;
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for (@{$self->config->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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}
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sub export_svg {
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my $self = shift;
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my %params = @_;
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# is this needed?
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$self->init_extruders;
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$_->slice for @{$self->objects};
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my $fh = $params{output_fh};
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if (!$fh) {
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my $output_file = $self->expanded_output_filepath($params{output_file});
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$output_file =~ s/\.gcode$/.svg/i;
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Slic3r::open(\$fh, ">", $output_file) or die "Failed to open $output_file for writing\n";
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print "Exporting to $output_file..." unless $params{quiet};
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}
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my $print_size = $self->size;
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print $fh sprintf <<"EOF", unscale($print_size->[X]), unscale($print_size->[Y]);
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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' ? 'white' : 'black');
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};
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my @layers = sort { $a->print_z <=> $b->print_z }
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map { @{$_->layers}, @{$_->support_layers} }
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@{$self->objects};
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my $layer_id = -1;
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my @previous_layer_slices = ();
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for my $layer (@layers) {
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$layer_id++;
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# TODO: remove slic3r:z for raft 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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my @current_layer_slices = ();
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# sort slices so that the outermost ones come first
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my @slices = sort { $a->contour->contains_point($b->contour->[0]) ? 0 : 1 } @{$layer->slices};
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foreach my $copy (@{$layer->object->copies}) {
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foreach my $slice (@slices) {
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my $expolygon = $slice->clone;
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$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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push @current_layer_slices, $expolygon;
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}
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}
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# generate support material
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if ($self->has_support_material && $layer->id > 0) {
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my (@supported_slices, @unsupported_slices) = ();
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foreach my $expolygon (@current_layer_slices) {
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my $intersection = intersection_ex(
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[ map @$_, @previous_layer_slices ],
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[ @$expolygon ],
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);
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@$intersection
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? push @supported_slices, $expolygon
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: push @unsupported_slices, $expolygon;
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}
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my @supported_points = map @$_, @$_, @supported_slices;
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foreach my $expolygon (@unsupported_slices) {
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# look for the nearest point to this island among all
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# supported points
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my $contour = $expolygon->contour;
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my $support_point = $contour->first_point->nearest_point(\@supported_points)
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or next;
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my $anchor_point = $support_point->nearest_point([ @$contour ]);
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printf $fh qq{ <line x1="%s" y1="%s" x2="%s" y2="%s" style="stroke-width: 2; stroke: white" />\n},
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map @$_, $support_point, $anchor_point;
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}
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}
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print $fh qq{ </g>\n};
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@previous_layer_slices = @current_layer_slices;
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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" unless $params{quiet};
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}
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sub make_skirt {
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my $self = shift;
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# prerequisites
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$_->make_perimeters for @{$self->objects};
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$_->infill for @{$self->objects};
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$_->generate_support_material for @{$self->objects};
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return if $self->step_done(STEP_SKIRT);
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$self->set_step_started(STEP_SKIRT);
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# since this method must be idempotent, we clear skirt paths *before*
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# checking whether we need to generate them
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$self->skirt->clear;
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if ($self->config->skirts == 0
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&& (!$self->config->ooze_prevention || @{$self->extruders} == 1)) {
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$self->set_step_done(STEP_SKIRT);
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return;
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}
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$self->status_cb->(88, "Generating skirt");
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# First off we need to decide how tall the skirt must be.
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# The skirt_height option from config is expressed in layers, but our
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# object might have different layer heights, so we need to find the print_z
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# of the highest layer involved.
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# Note that unless skirt_height == -1 (which means it's printed on all layers)
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# the actual skirt might not reach this $skirt_height_z value since the print
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# order of objects on each layer is not guaranteed and will not generally
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# include the thickest object first. It is just guaranteed that a skirt is
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# prepended to the first 'n' layers (with 'n' = skirt_height).
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# $skirt_height_z in this case is the highest possible skirt height for safety.
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my $skirt_height_z = -1;
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foreach my $object (@{$self->objects}) {
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my $skirt_height = ($self->config->skirt_height == -1)
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? scalar(@{$object->layers})
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: min($self->config->skirt_height, scalar(@{$object->layers}));
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my $highest_layer = $object->get_layer($skirt_height - 1);
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$skirt_height_z = max($skirt_height_z, $highest_layer->print_z);
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}
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# collect points from all layers contained in skirt height
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my @points = ();
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foreach my $object (@{$self->objects}) {
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my @object_points = ();
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# get object layers up to $skirt_height_z
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foreach my $layer (@{$object->layers}) {
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last if $layer->print_z > $skirt_height_z;
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push @object_points, map @$_, map @$_, @{$layer->slices};
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}
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# get support layers up to $skirt_height_z
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foreach my $layer (@{$object->support_layers}) {
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last if $layer->print_z > $skirt_height_z;
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push @object_points, map @{$_->polyline}, @{$layer->support_fills} if $layer->support_fills;
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push @object_points, map @{$_->polyline}, @{$layer->support_interface_fills} if $layer->support_interface_fills;
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}
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# repeat points for each object copy
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foreach my $copy (@{$object->_shifted_copies}) {
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my @copy_points = map $_->clone, @object_points;
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$_->translate(@$copy) for @copy_points;
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push @points, @copy_points;
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}
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}
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return if @points < 3; # at least three points required for a convex hull
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# find out convex hull
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my $convex_hull = convex_hull(\@points);
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my @extruded_length = (); # for each extruder
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# skirt may be printed on several layers, having distinct layer heights,
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# but loops must be aligned so can't vary width/spacing
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# TODO: use each extruder's own flow
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my $first_layer_height = $self->skirt_first_layer_height;
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my $flow = $self->skirt_flow;
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my $spacing = $flow->spacing;
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my $mm3_per_mm = $flow->mm3_per_mm;
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my @extruders_e_per_mm = ();
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my $extruder_idx = 0;
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# draw outlines from outside to inside
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# loop while we have less skirts than required or any extruder hasn't reached the min length if any
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my $distance = scale max($self->config->skirt_distance, $self->config->brim_width);
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for (my $i = $self->config->skirts; $i > 0; $i--) {
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$distance += scale $spacing;
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my $loop = offset([$convex_hull], $distance, 1, JT_ROUND, scale(0.1))->[0];
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$self->skirt->append(Slic3r::ExtrusionLoop->new_from_paths(
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Slic3r::ExtrusionPath->new(
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polyline => Slic3r::Polygon->new(@$loop)->split_at_first_point,
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role => EXTR_ROLE_SKIRT,
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mm3_per_mm => $mm3_per_mm,
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width => $flow->width,
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height => $first_layer_height,
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),
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));
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if ($self->config->min_skirt_length > 0) {
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$extruded_length[$extruder_idx] ||= 0;
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if (!$extruders_e_per_mm[$extruder_idx]) {
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my $config = Slic3r::Config::GCode->new;
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$config->apply_print_config($self->config);
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my $extruder = Slic3r::Extruder->new($extruder_idx, $config);
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$extruders_e_per_mm[$extruder_idx] = $extruder->e_per_mm($mm3_per_mm);
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}
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$extruded_length[$extruder_idx] += unscale $loop->length * $extruders_e_per_mm[$extruder_idx];
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$i++ if defined first { ($extruded_length[$_] // 0) < $self->config->min_skirt_length } 0 .. $#{$self->extruders};
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if ($extruded_length[$extruder_idx] >= $self->config->min_skirt_length) {
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if ($extruder_idx < $#{$self->extruders}) {
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$extruder_idx++;
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next;
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}
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}
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}
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}
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$self->skirt->reverse;
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$self->set_step_done(STEP_SKIRT);
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}
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sub make_brim {
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my $self = shift;
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# prerequisites
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$_->make_perimeters for @{$self->objects};
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$_->infill for @{$self->objects};
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$_->generate_support_material for @{$self->objects};
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$self->make_skirt;
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return if $self->step_done(STEP_BRIM);
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$self->set_step_started(STEP_BRIM);
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# since this method must be idempotent, we clear brim paths *before*
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# checking whether we need to generate them
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$self->brim->clear;
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if ($self->config->brim_width == 0) {
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$self->set_step_done(STEP_BRIM);
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return;
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}
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$self->status_cb->(88, "Generating brim");
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# brim is only printed on first layer and uses support material extruder
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my $first_layer_height = $self->skirt_first_layer_height;
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my $flow = $self->skirt_flow;
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my $mm3_per_mm = $flow->mm3_per_mm;
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my $grow_distance = $flow->scaled_width / 2;
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my @islands = (); # array of polygons
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foreach my $obj_idx (0 .. ($self->object_count - 1)) {
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my $object = $self->objects->[$obj_idx];
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my $layer0 = $object->get_layer(0);
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my @object_islands = (
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(map $_->contour, @{$layer0->slices}),
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);
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if (@{ $object->support_layers }) {
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my $support_layer0 = $object->support_layers->[0];
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push @object_islands,
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(map @{$_->polyline->grow($grow_distance)}, @{$support_layer0->support_fills})
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if $support_layer0->support_fills;
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push @object_islands,
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(map @{$_->polyline->grow($grow_distance)}, @{$support_layer0->support_interface_fills})
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if $support_layer0->support_interface_fills;
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}
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foreach my $copy (@{$object->_shifted_copies}) {
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push @islands, map { $_->translate(@$copy); $_ } map $_->clone, @object_islands;
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}
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}
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my @loops = ();
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my $num_loops = sprintf "%.0f", $self->config->brim_width / $flow->width;
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for my $i (reverse 1 .. $num_loops) {
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# JT_SQUARE ensures no vertex is outside the given offset distance
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# -0.5 because islands are not represented by their centerlines
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# (first offset more, then step back - reverse order than the one used for
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# perimeters because here we're offsetting outwards)
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push @loops, @{offset2(\@islands, ($i + 0.5) * $flow->scaled_spacing, -1.0 * $flow->scaled_spacing, 100000, JT_SQUARE)};
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}
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$self->brim->append(map Slic3r::ExtrusionLoop->new_from_paths(
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Slic3r::ExtrusionPath->new(
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polyline => Slic3r::Polygon->new(@$_)->split_at_first_point,
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role => EXTR_ROLE_SKIRT,
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mm3_per_mm => $mm3_per_mm,
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width => $flow->width,
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height => $first_layer_height,
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),
|
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), reverse @{union_pt_chained(\@loops)});
|
||
|
||
$self->set_step_done(STEP_BRIM);
|
||
}
|
||
|
||
sub skirt_first_layer_height {
|
||
my ($self) = @_;
|
||
return $self->objects->[0]->config->get_abs_value('first_layer_height');
|
||
}
|
||
|
||
sub skirt_flow {
|
||
my ($self) = @_;
|
||
|
||
return Slic3r::Flow->new_from_width(
|
||
width => ($self->config->first_layer_extrusion_width || $self->regions->[0]->config->perimeter_extrusion_width),
|
||
role => FLOW_ROLE_PERIMETER,
|
||
nozzle_diameter => $self->config->get_at('nozzle_diameter', $self->objects->[0]->config->support_material_extruder-1),
|
||
layer_height => $self->skirt_first_layer_height,
|
||
bridge_flow_ratio => 0,
|
||
);
|
||
}
|
||
|
||
sub write_gcode {
|
||
my $self = shift;
|
||
my ($file) = @_;
|
||
|
||
# open output gcode file if we weren't supplied a file-handle
|
||
my $fh;
|
||
if (ref $file eq 'IO::Scalar') {
|
||
$fh = $file;
|
||
} else {
|
||
Slic3r::open(\$fh, ">", $file)
|
||
or die "Failed to open $file for writing\n";
|
||
|
||
# enable UTF-8 output since user might have entered Unicode characters in fields like notes
|
||
binmode $fh, ':utf8';
|
||
}
|
||
|
||
|
||
# write some information
|
||
my @lt = localtime;
|
||
printf $fh "; generated by Slic3r $Slic3r::VERSION on %04d-%02d-%02d at %02d:%02d:%02d\n\n",
|
||
$lt[5] + 1900, $lt[4]+1, $lt[3], $lt[2], $lt[1], $lt[0];
|
||
|
||
print $fh "; $_\n" foreach split /\R/, $self->config->notes;
|
||
print $fh "\n" if $self->config->notes;
|
||
|
||
my $first_object = $self->objects->[0];
|
||
my $layer_height = $first_object->config->layer_height;
|
||
for my $region_id (0..$#{$self->regions}) {
|
||
printf $fh "; external perimeters extrusion width = %.2fmm\n",
|
||
$self->regions->[$region_id]->flow(FLOW_ROLE_EXTERNAL_PERIMETER, $layer_height, 0, 0, -1, $first_object)->width;
|
||
printf $fh "; perimeters extrusion width = %.2fmm\n",
|
||
$self->regions->[$region_id]->flow(FLOW_ROLE_PERIMETER, $layer_height, 0, 0, -1, $first_object)->width;
|
||
printf $fh "; infill extrusion width = %.2fmm\n",
|
||
$self->regions->[$region_id]->flow(FLOW_ROLE_INFILL, $layer_height, 0, 0, -1, $first_object)->width;
|
||
printf $fh "; solid infill extrusion width = %.2fmm\n",
|
||
$self->regions->[$region_id]->flow(FLOW_ROLE_SOLID_INFILL, $layer_height, 0, 0, -1, $first_object)->width;
|
||
printf $fh "; top infill extrusion width = %.2fmm\n",
|
||
$self->regions->[$region_id]->flow(FLOW_ROLE_TOP_SOLID_INFILL, $layer_height, 0, 0, -1, $first_object)->width;
|
||
printf $fh "; support material extrusion width = %.2fmm\n",
|
||
$self->objects->[0]->support_material_flow->width
|
||
if $self->has_support_material;
|
||
printf $fh "; first layer extrusion width = %.2fmm\n",
|
||
$self->regions->[$region_id]->flow(FLOW_ROLE_PERIMETER, $layer_height, 0, 1, -1, $self->objects->[0])->width
|
||
if $self->regions->[$region_id]->config->first_layer_extrusion_width;
|
||
print $fh "\n";
|
||
}
|
||
|
||
# prepare the helper object for replacing placeholders in custom G-code and output filename
|
||
$self->placeholder_parser->update_timestamp;
|
||
|
||
# estimate the total number of layer changes
|
||
# TODO: only do this when M73 is enabled
|
||
my $layer_count;
|
||
if ($self->config->complete_objects) {
|
||
$layer_count = sum(map { $_->total_layer_count * @{$_->copies} } @{$self->objects});
|
||
} else {
|
||
# if sequential printing is not enable, all copies of the same object share the same layer change command(s)
|
||
$layer_count = sum(map { $_->total_layer_count } @{$self->objects});
|
||
}
|
||
|
||
# set up our helper object
|
||
my $gcodegen = Slic3r::GCode->new(
|
||
placeholder_parser => $self->placeholder_parser,
|
||
layer_count => $layer_count,
|
||
enable_cooling_markers => 1,
|
||
);
|
||
$gcodegen->apply_print_config($self->config);
|
||
$gcodegen->set_extruders($self->extruders);
|
||
|
||
print $fh $gcodegen->writer->set_fan(0, 1) if $self->config->cooling && $self->config->disable_fan_first_layers;
|
||
|
||
# set bed temperature
|
||
if ((my $temp = $self->config->first_layer_bed_temperature) && $self->config->start_gcode !~ /M(?:190|140)/i) {
|
||
printf $fh $gcodegen->writer->set_bed_temperature($temp, 1);
|
||
}
|
||
|
||
# set extruder(s) temperature before and after start G-code
|
||
my $print_first_layer_temperature = sub {
|
||
my ($wait) = @_;
|
||
|
||
return if $self->config->start_gcode =~ /M(?:109|104)/i;
|
||
for my $t (@{$self->extruders}) {
|
||
my $temp = $self->config->get_at('first_layer_temperature', $t);
|
||
$temp += $self->config->standby_temperature_delta if $self->config->ooze_prevention;
|
||
printf $fh $gcodegen->writer->set_temperature($temp, $wait, $t) if $temp > 0;
|
||
}
|
||
};
|
||
$print_first_layer_temperature->(0);
|
||
printf $fh "%s\n", $gcodegen->placeholder_parser->process($self->config->start_gcode);
|
||
$print_first_layer_temperature->(1);
|
||
|
||
# set other general things
|
||
print $fh $gcodegen->preamble;
|
||
|
||
# initialize a motion planner for object-to-object travel moves
|
||
if ($self->config->avoid_crossing_perimeters) {
|
||
my $distance_from_objects = 1;
|
||
# compute the offsetted convex hull for each object and repeat it for each copy.
|
||
my @islands = ();
|
||
foreach my $obj_idx (0 .. ($self->object_count - 1)) {
|
||
my $convex_hull = convex_hull([
|
||
map @{$_->contour}, map @{$_->slices}, @{$self->objects->[$obj_idx]->layers},
|
||
]);
|
||
# discard layers only containing thin walls (offset would fail on an empty polygon)
|
||
if (@$convex_hull) {
|
||
my $expolygon = Slic3r::ExPolygon->new($convex_hull);
|
||
my @island = @{$expolygon->offset_ex(scale $distance_from_objects, 1, JT_SQUARE)};
|
||
foreach my $copy (@{ $self->objects->[$obj_idx]->_shifted_copies }) {
|
||
push @islands, map { my $c = $_->clone; $c->translate(@$copy); $c } @island;
|
||
}
|
||
}
|
||
}
|
||
$gcodegen->init_external_mp(union_ex([ map @$_, @islands ]));
|
||
}
|
||
|
||
# calculate wiping points if needed
|
||
if ($self->config->ooze_prevention) {
|
||
my @skirt_points = map @$_, map @$_, @{$self->skirt};
|
||
if (@skirt_points) {
|
||
my $outer_skirt = convex_hull(\@skirt_points);
|
||
my @skirts = ();
|
||
foreach my $extruder_id (@{$self->extruders}) {
|
||
push @skirts, my $s = $outer_skirt->clone;
|
||
$s->translate(map scale($_), @{$self->config->get_at('extruder_offset', $extruder_id)});
|
||
}
|
||
my $convex_hull = convex_hull([ map @$_, @skirts ]);
|
||
|
||
my $oozeprev = Slic3r::GCode::OozePrevention->new(
|
||
standby_points => [ map $_->clone, map @$_, map $_->subdivide(scale 10), @{offset([$convex_hull], scale 3)} ],
|
||
);
|
||
$gcodegen->ooze_prevention($oozeprev);
|
||
}
|
||
}
|
||
|
||
# prepare the layer processor
|
||
my $layer_gcode = Slic3r::GCode::Layer->new(
|
||
print => $self,
|
||
gcodegen => $gcodegen,
|
||
);
|
||
|
||
# set initial extruder only after custom start G-code
|
||
print $fh $gcodegen->set_extruder($self->extruders->[0]);
|
||
|
||
# do all objects for each layer
|
||
if ($self->config->complete_objects) {
|
||
# print objects from the smallest to the tallest to avoid collisions
|
||
# when moving onto next object starting point
|
||
my @obj_idx = sort { $self->objects->[$a]->size->[Z] <=> $self->objects->[$b]->size->[Z] } 0..($self->object_count - 1);
|
||
|
||
my $finished_objects = 0;
|
||
for my $obj_idx (@obj_idx) {
|
||
my $object = $self->objects->[$obj_idx];
|
||
for my $copy (@{ $self->objects->[$obj_idx]->_shifted_copies }) {
|
||
# move to the origin position for the copy we're going to print.
|
||
# this happens before Z goes down to layer 0 again, so that
|
||
# no collision happens hopefully.
|
||
if ($finished_objects > 0) {
|
||
$gcodegen->set_origin(Slic3r::Pointf->new(map unscale $copy->[$_], X,Y));
|
||
print $fh $gcodegen->retract;
|
||
print $fh $gcodegen->travel_to(
|
||
$object->_copies_shift->negative,
|
||
undef,
|
||
'move to origin position for next object',
|
||
);
|
||
}
|
||
|
||
my $buffer = Slic3r::GCode::CoolingBuffer->new(
|
||
config => $self->config,
|
||
gcodegen => $gcodegen,
|
||
);
|
||
|
||
my @layers = sort { $a->print_z <=> $b->print_z } @{$object->layers}, @{$object->support_layers};
|
||
for my $layer (@layers) {
|
||
# if we are printing the bottom layer of an object, and we have already finished
|
||
# another one, set first layer temperatures. this happens before the Z move
|
||
# is triggered, so machine has more time to reach such temperatures
|
||
if ($layer->id == 0 && $finished_objects > 0) {
|
||
printf $fh $gcodegen->writer->set_bed_temperature($self->config->first_layer_bed_temperature),
|
||
if $self->config->first_layer_bed_temperature;
|
||
$print_first_layer_temperature->(0);
|
||
}
|
||
print $fh $buffer->append(
|
||
$layer_gcode->process_layer($layer, [$copy]),
|
||
$layer->object->ptr,
|
||
$layer->id,
|
||
$layer->print_z,
|
||
);
|
||
}
|
||
print $fh $buffer->flush;
|
||
$finished_objects++;
|
||
}
|
||
}
|
||
} else {
|
||
# order objects using a nearest neighbor search
|
||
my @obj_idx = @{chained_path([ map Slic3r::Point->new(@{$_->_shifted_copies->[0]}), @{$self->objects} ])};
|
||
|
||
# sort layers by Z
|
||
my %layers = (); # print_z => [ [layers], [layers], [layers] ] by obj_idx
|
||
foreach my $obj_idx (0 .. ($self->object_count - 1)) {
|
||
my $object = $self->objects->[$obj_idx];
|
||
foreach my $layer (@{$object->layers}, @{$object->support_layers}) {
|
||
$layers{ $layer->print_z } ||= [];
|
||
$layers{ $layer->print_z }[$obj_idx] ||= [];
|
||
push @{$layers{ $layer->print_z }[$obj_idx]}, $layer;
|
||
}
|
||
}
|
||
|
||
my $buffer = Slic3r::GCode::CoolingBuffer->new(
|
||
config => $self->config,
|
||
gcodegen => $gcodegen,
|
||
);
|
||
foreach my $print_z (sort { $a <=> $b } keys %layers) {
|
||
foreach my $obj_idx (@obj_idx) {
|
||
foreach my $layer (@{ $layers{$print_z}[$obj_idx] // [] }) {
|
||
print $fh $buffer->append(
|
||
$layer_gcode->process_layer($layer, $layer->object->_shifted_copies),
|
||
$layer->object->ptr . ref($layer), # differentiate $obj_id between normal layers and support layers
|
||
$layer->id,
|
||
$layer->print_z,
|
||
);
|
||
}
|
||
}
|
||
}
|
||
print $fh $buffer->flush;
|
||
}
|
||
|
||
# write end commands to file
|
||
print $fh $gcodegen->retract;
|
||
print $fh $gcodegen->writer->set_fan(0);
|
||
printf $fh "%s\n", $gcodegen->placeholder_parser->process($self->config->end_gcode);
|
||
print $fh $gcodegen->writer->update_progress($gcodegen->layer_count, $gcodegen->layer_count, 1); # 100%
|
||
|
||
$self->total_used_filament(0);
|
||
$self->total_extruded_volume(0);
|
||
foreach my $extruder (@{$gcodegen->writer->extruders}) {
|
||
my $used_filament = $extruder->used_filament;
|
||
my $extruded_volume = $extruder->extruded_volume;
|
||
|
||
printf $fh "; filament used = %.1fmm (%.1fcm3)\n",
|
||
$used_filament, $extruded_volume/1000;
|
||
|
||
$self->total_used_filament($self->total_used_filament + $used_filament);
|
||
$self->total_extruded_volume($self->total_extruded_volume + $extruded_volume);
|
||
}
|
||
|
||
# append full config
|
||
print $fh "\n";
|
||
foreach my $config ($self->config, $self->default_object_config, $self->default_region_config) {
|
||
foreach my $opt_key (sort @{$config->get_keys}) {
|
||
next if $Slic3r::Config::Options->{$opt_key}{shortcut};
|
||
printf $fh "; %s = %s\n", $opt_key, $config->serialize($opt_key);
|
||
}
|
||
}
|
||
|
||
# close our gcode file
|
||
close $fh;
|
||
}
|
||
|
||
# this method will return the supplied input file path after expanding its
|
||
# format variables with their values
|
||
sub expanded_output_filepath {
|
||
my $self = shift;
|
||
my ($path) = @_;
|
||
|
||
return undef if !@{$self->objects};
|
||
my $input_file = first { defined $_ } map $_->model_object->input_file, @{$self->objects};
|
||
return undef if !defined $input_file;
|
||
|
||
my $filename = my $filename_base = basename($input_file);
|
||
$filename_base =~ s/\.[^.]+$//; # without suffix
|
||
my $extra = {
|
||
input_filename => $filename,
|
||
input_filename_base => $filename_base,
|
||
};
|
||
|
||
if ($path && -d $path) {
|
||
# if output path is an existing directory, we take that and append
|
||
# the specified filename format
|
||
$path = File::Spec->join($path, $self->config->output_filename_format);
|
||
} elsif (!$path) {
|
||
# if no explicit output file was defined, we take the input
|
||
# file directory and append the specified filename format
|
||
$path = (fileparse($input_file))[1] . $self->config->output_filename_format;
|
||
} else {
|
||
# path is a full path to a file so we use it as it is
|
||
}
|
||
|
||
# make sure we use an up-to-date timestamp
|
||
$self->placeholder_parser->update_timestamp;
|
||
return $self->placeholder_parser->process($path, $extra);
|
||
}
|
||
|
||
# This method assigns extruders to the volumes having a material
|
||
# but not having extruders set in the material config.
|
||
sub auto_assign_extruders {
|
||
my ($self, $model_object) = @_;
|
||
|
||
# only assign extruders if object has more than one volume
|
||
return if @{$model_object->volumes} == 1;
|
||
|
||
my $extruders = scalar @{ $self->config->nozzle_diameter };
|
||
foreach my $i (0..$#{$model_object->volumes}) {
|
||
my $volume = $model_object->volumes->[$i];
|
||
if ($volume->material_id ne '') {
|
||
my $material = $model_object->model->get_material($volume->material_id);
|
||
my $config = $material->config;
|
||
my $extruder_id = $i + 1;
|
||
$config->set_ifndef('extruder', $extruder_id);
|
||
}
|
||
}
|
||
}
|
||
|
||
1;
|