878 lines
36 KiB
Perl
878 lines
36 KiB
Perl
package Slic3r::Print;
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use Moo;
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use Config;
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use Math::ConvexHull 1.0.4 qw(convex_hull);
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use Slic3r::Geometry qw(X Y Z PI MIN MAX scale unscale move_points);
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use Slic3r::Geometry::Clipper qw(explode_expolygons safety_offset diff_ex intersection_ex
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union_ex offset JT_ROUND JT_MITER);
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use XXX;
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has 'x_length' => (is => 'ro', required => 1);
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has 'y_length' => (is => 'ro', required => 1);
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has 'total_x_length' => (is => 'rw'); # including duplicates
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has 'total_y_length' => (is => 'rw'); # including duplicates
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has 'copies' => (is => 'rw', default => sub {[]});
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has 'layers' => (
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traits => ['Array'],
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is => 'rw',
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#isa => 'ArrayRef[Slic3r::Layer]',
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default => sub { [] },
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);
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has 'total_extrusion_length' => (is => 'rw');
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sub new_from_mesh {
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my $class = shift;
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my ($mesh) = @_;
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$mesh->rotate($Slic3r::rotate);
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$mesh->scale($Slic3r::scale / $Slic3r::resolution);
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$mesh->align_to_origin;
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# initialize print job
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my @size = $mesh->size;
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my $print = $class->new(
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x_length => $size[X],
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y_length => $size[Y],
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);
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# process facets
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{
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my $apply_lines = sub {
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my $lines = shift;
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foreach my $layer_id (keys %$lines) {
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my $layer = $print->layer($layer_id);
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$layer->add_line($_) for @{ $lines->{$layer_id} };
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}
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};
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Slic3r::parallelize(
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disable => ($#{$mesh->facets} < 500), # don't parallelize when too few facets
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items => [ 0..$#{$mesh->facets} ],
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thread_cb => sub {
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my $q = shift;
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my $result_lines = {};
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while (defined (my $facet_id = $q->dequeue)) {
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my $lines = $mesh->slice_facet($print, $facet_id);
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foreach my $layer_id (keys %$lines) {
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$result_lines->{$layer_id} ||= [];
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push @{ $result_lines->{$layer_id} }, @{ $lines->{$layer_id} };
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}
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}
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return $result_lines;
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},
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collect_cb => sub {
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$apply_lines->($_[0]);
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},
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no_threads_cb => sub {
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for (0..$#{$mesh->facets}) {
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my $lines = $mesh->slice_facet($print, $_);
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$apply_lines->($lines);
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}
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},
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);
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}
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die "Invalid input file\n" if !@{$print->layers};
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# remove last layer if empty
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# (we might have created it because of the $max_layer = ... + 1 code below)
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pop @{$print->layers} if !@{$print->layers->[-1]->surfaces} && !@{$print->layers->[-1]->lines};
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foreach my $layer (@{ $print->layers }) {
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Slic3r::debugf "Making surfaces for layer %d (slice z = %f):\n",
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$layer->id, unscale $layer->slice_z if $Slic3r::debug;
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# layer currently has many lines representing intersections of
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# model facets with the layer plane. there may also be lines
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# that we need to ignore (for example, when two non-horizontal
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# facets share a common edge on our plane, we get a single line;
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# however that line has no meaning for our layer as it's enclosed
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# inside a closed polyline)
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# build surfaces from sparse lines
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$layer->make_surfaces($mesh->make_loops($layer));
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# free memory
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$layer->lines(undef);
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}
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# detect slicing errors
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my $warning_thrown = 0;
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for (my $i = 0; $i <= $#{$print->layers}; $i++) {
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my $layer = $print->layers->[$i];
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next unless $layer->slicing_errors;
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if (!$warning_thrown) {
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warn "The model has overlapping or self-intersecting facets. I tried to repair it, "
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. "however you might want to check the results or repair the input file and retry.\n";
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$warning_thrown = 1;
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}
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# try to repair the layer surfaces by merging all contours and all holes from
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# neighbor layers
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Slic3r::debugf "Attempting to repair layer %d\n", $i;
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my (@upper_surfaces, @lower_surfaces);
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for (my $j = $i+1; $j <= $#{$print->layers}; $j++) {
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if (!$print->layers->[$j]->slicing_errors) {
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@upper_surfaces = @{$print->layers->[$j]->slices};
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last;
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}
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}
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for (my $j = $i-1; $j >= 0; $j--) {
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if (!$print->layers->[$j]->slicing_errors) {
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@lower_surfaces = @{$print->layers->[$j]->slices};
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last;
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}
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}
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my $union = union_ex([
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map $_->expolygon->contour, @upper_surfaces, @lower_surfaces,
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]);
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my $diff = diff_ex(
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[ map @$_, @$union ],
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[ map $_->expolygon->holes, @upper_surfaces, @lower_surfaces, ],
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);
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@{$layer->slices} = map Slic3r::Surface->new
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(expolygon => $_, surface_type => 'internal'),
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@$diff;
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}
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# remove empty layers from bottom
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while (@{$print->layers} && !@{$print->layers->[0]->slices} && !@{$print->layers->[0]->thin_walls}) {
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shift @{$print->layers};
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for (my $i = 0; $i <= $#{$print->layers}; $i++) {
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$print->layers->[$i]->id($i);
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}
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}
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warn "No layers were detected. You might want to repair your STL file and retry.\n"
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if !@{$print->layers};
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return $print;
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}
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sub BUILD {
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my $self = shift;
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my $dist = scale $Slic3r::duplicate_distance;
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if ($Slic3r::duplicate_grid->[X] > 1 || $Slic3r::duplicate_grid->[Y] > 1) {
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$self->total_x_length($self->x_length * $Slic3r::duplicate_grid->[X] + $dist * ($Slic3r::duplicate_grid->[X] - 1));
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$self->total_y_length($self->y_length * $Slic3r::duplicate_grid->[Y] + $dist * ($Slic3r::duplicate_grid->[Y] - 1));
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# generate offsets for copies
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for my $x_copy (1..$Slic3r::duplicate_grid->[X]) {
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for my $y_copy (1..$Slic3r::duplicate_grid->[Y]) {
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push @{$self->copies}, [
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($self->x_length + $dist) * ($x_copy-1),
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($self->y_length + $dist) * ($y_copy-1),
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];
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}
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}
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} elsif ($Slic3r::duplicate > 1) {
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my $linint = sub {
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my ($value, $oldmin, $oldmax, $newmin, $newmax) = @_;
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return ($value - $oldmin) * ($newmax - $newmin) / ($oldmax - $oldmin) + $newmin;
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};
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# use actual part size plus separation distance (half on each side) in spacing algorithm
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my $partx = unscale($self->x_length) + $Slic3r::duplicate_distance;
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my $party = unscale($self->y_length) + $Slic3r::duplicate_distance;
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# margin needed for the skirt
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my $skirt_margin;
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if ($Slic3r::skirts > 0) {
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$skirt_margin = ($Slic3r::flow_spacing * $Slic3r::skirts + $Slic3r::skirt_distance) * 2;
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} else {
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$skirt_margin = 0;
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}
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# this is how many cells we have available into which to put parts
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my $cellw = int(($Slic3r::bed_size->[X] - $skirt_margin + $Slic3r::duplicate_distance) / $partx);
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my $cellh = int(($Slic3r::bed_size->[Y] - $skirt_margin + $Slic3r::duplicate_distance) / $party);
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die "$Slic3r::duplicate parts won't fit in your print area!\n" if $Slic3r::duplicate > ($cellw * $cellh);
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# width and height of space used by cells
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my $w = $cellw * $partx;
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my $h = $cellh * $party;
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# left and right border positions of space used by cells
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my $l = ($Slic3r::bed_size->[X] - $w) / 2;
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my $r = $l + $w;
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# top and bottom border positions
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my $t = ($Slic3r::bed_size->[Y] - $h) / 2;
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my $b = $t + $h;
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# list of cells, sorted by distance from center
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my @cellsorder;
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# work out distance for all cells, sort into list
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for my $i (0..$cellw-1) {
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for my $j (0..$cellh-1) {
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my $cx = $linint->($i + 0.5, 0, $cellw, $l, $r);
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my $cy = $linint->($j + 0.5, 0, $cellh, $t, $b);
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my $xd = abs(($Slic3r::bed_size->[X] / 2) - $cx);
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my $yd = abs(($Slic3r::bed_size->[Y] / 2) - $cy);
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my $c = {
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location => [$cx, $cy],
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index => [$i, $j],
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distance => $xd * $xd + $yd * $yd - abs(($cellw / 2) - ($i + 0.5)),
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};
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BINARYINSERTIONSORT: {
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my $index = $c->{distance};
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my $low = 0;
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my $high = @cellsorder;
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while ($low < $high) {
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my $mid = ($low + (($high - $low) / 2)) | 0;
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my $midval = $cellsorder[$mid]->[0];
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if ($midval < $index) {
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$low = $mid + 1;
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} elsif ($midval > $index) {
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$high = $mid;
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} else {
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splice @cellsorder, $mid, 0, [$index, $c];
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last BINARYINSERTIONSORT;
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}
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}
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splice @cellsorder, $low, 0, [$index, $c];
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}
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}
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}
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# the extents of cells actually used by objects
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my ($lx, $ty, $rx, $by) = (0, 0, 0, 0);
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# now find cells actually used by objects, map out the extents so we can position correctly
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for my $i (1..$Slic3r::duplicate) {
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my $c = $cellsorder[$i - 1];
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my $cx = $c->[1]->{index}->[0];
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my $cy = $c->[1]->{index}->[1];
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if ($i == 1) {
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$lx = $rx = $cx;
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$ty = $by = $cy;
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} else {
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$rx = $cx if $cx > $rx;
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$lx = $cx if $cx < $lx;
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$by = $cy if $cy > $by;
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$ty = $cy if $cy < $ty;
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}
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}
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# now we actually place objects into cells, positioned such that the left and bottom borders are at 0
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for my $i (1..$Slic3r::duplicate) {
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my $c = shift @cellsorder;
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my $cx = $c->[1]->{index}->[0] - $lx;
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my $cy = $c->[1]->{index}->[1] - $ty;
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push @{$self->copies}, [scale($cx * $partx), scale($cy * $party)];
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}
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# save size of area used
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$self->total_x_length(scale(($rx - $lx + 1) * $partx - $Slic3r::duplicate_distance));
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$self->total_y_length(scale(($by - $ty + 1) * $party - $Slic3r::duplicate_distance));
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} else {
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$self->total_x_length($self->x_length);
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$self->total_y_length($self->y_length);
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push @{$self->copies}, [0, 0];
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}
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}
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sub layer_count {
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my $self = shift;
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return scalar @{ $self->layers };
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}
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sub max_length {
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my $self = shift;
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return ($self->x_length > $self->y_length) ? $self->x_length : $self->y_length;
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}
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sub layer {
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my $self = shift;
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my ($layer_id) = @_;
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# extend our print by creating all necessary layers
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if ($self->layer_count < $layer_id + 1) {
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for (my $i = $self->layer_count; $i <= $layer_id; $i++) {
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push @{ $self->layers }, Slic3r::Layer->new(id => $i);
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}
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}
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return $self->layers->[$layer_id];
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}
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sub detect_surfaces_type {
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my $self = shift;
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Slic3r::debugf "Detecting solid surfaces...\n";
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# prepare a reusable subroutine to make surface differences
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my $surface_difference = sub {
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my ($subject_surfaces, $clip_surfaces, $result_type) = @_;
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my $expolygons = diff_ex(
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[ map { ref $_ eq 'ARRAY' ? $_ : ref $_ eq 'Slic3r::ExPolygon' ? @$_ : $_->p } @$subject_surfaces ],
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[ map { ref $_ eq 'ARRAY' ? $_ : ref $_ eq 'Slic3r::ExPolygon' ? @$_ : $_->p } @$clip_surfaces ],
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1,
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);
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return grep $_->contour->is_printable,
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map Slic3r::Surface->new(expolygon => $_, surface_type => $result_type),
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@$expolygons;
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};
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for (my $i = 0; $i < $self->layer_count; $i++) {
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my $layer = $self->layers->[$i];
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my $upper_layer = $self->layers->[$i+1];
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my $lower_layer = $i > 0 ? $self->layers->[$i-1] : undef;
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my (@bottom, @top, @internal) = ();
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# find top surfaces (difference between current surfaces
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# of current layer and upper one)
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if ($upper_layer) {
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@top = $surface_difference->($layer->slices, $upper_layer->slices, 'top');
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} else {
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# if no upper layer, all surfaces of this one are solid
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@top = @{$layer->slices};
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$_->surface_type('top') for @top;
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}
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# find bottom surfaces (difference between current surfaces
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# of current layer and lower one)
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if ($lower_layer) {
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@bottom = $surface_difference->($layer->slices, $lower_layer->slices, 'bottom');
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} else {
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# if no lower layer, all surfaces of this one are solid
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@bottom = @{$layer->slices};
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$_->surface_type('bottom') for @bottom;
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}
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# now, if the object contained a thin membrane, we could have overlapping bottom
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# and top surfaces; let's do an intersection to discover them and consider them
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# as bottom surfaces (to allow for bridge detection)
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if (@top && @bottom) {
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my $overlapping = intersection_ex([ map $_->p, @top ], [ map $_->p, @bottom ]);
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Slic3r::debugf " layer %d contains %d membrane(s)\n", $layer->id, scalar(@$overlapping);
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@top = $surface_difference->([@top], $overlapping, 'top');
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}
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# find internal surfaces (difference between top/bottom surfaces and others)
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@internal = $surface_difference->($layer->slices, [@top, @bottom], 'internal');
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# save surfaces to layer
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@{$layer->slices} = (@bottom, @top, @internal);
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Slic3r::debugf " layer %d has %d bottom, %d top and %d internal surfaces\n",
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$layer->id, scalar(@bottom), scalar(@top), scalar(@internal);
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}
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# clip surfaces to the fill boundaries
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foreach my $layer (@{$self->layers}) {
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@{$layer->surfaces} = ();
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foreach my $surface (@{$layer->slices}) {
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my $intersection = intersection_ex(
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[ $surface->p ],
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[ map @$_, @{$layer->fill_boundaries} ],
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);
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push @{$layer->surfaces}, map Slic3r::Surface->new
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(expolygon => $_, surface_type => $surface->surface_type),
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@$intersection;
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}
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# free memory
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@{$layer->fill_boundaries} = ();
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}
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}
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sub discover_horizontal_shells {
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my $self = shift;
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Slic3r::debugf "==> DISCOVERING HORIZONTAL SHELLS\n";
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for (my $i = 0; $i < $self->layer_count; $i++) {
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my $layer = $self->layers->[$i];
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foreach my $type (qw(top bottom)) {
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# find surfaces of current type for current layer
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# and offset them to take perimeters into account
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my @surfaces = map $_->offset($Slic3r::perimeters * scale $Slic3r::flow_width),
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grep $_->surface_type eq $type, @{$layer->fill_surfaces} or next;
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my $surfaces_p = [ map $_->p, @surfaces ];
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Slic3r::debugf "Layer %d has %d surfaces of type '%s'\n",
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$i, scalar(@surfaces), $type;
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for (my $n = $type eq 'top' ? $i-1 : $i+1;
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abs($n - $i) <= $Slic3r::solid_layers-1;
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$type eq 'top' ? $n-- : $n++) {
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next if $n < 0 || $n >= $self->layer_count;
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Slic3r::debugf " looking for neighbors on layer %d...\n", $n;
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my @neighbor_surfaces = @{$self->layers->[$n]->surfaces};
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my @neighbor_fill_surfaces = @{$self->layers->[$n]->fill_surfaces};
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# find intersection between neighbor and current layer's surfaces
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# intersections have contours and holes
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my $new_internal_solid = intersection_ex(
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$surfaces_p,
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[ map $_->p, grep $_->surface_type =~ /internal/, @neighbor_surfaces ],
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undef, 1,
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);
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next if !@$new_internal_solid;
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# internal-solid are the union of the existing internal-solid surfaces
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# and new ones
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my $internal_solid = union_ex([
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( map $_->p, grep $_->surface_type eq 'internal-solid', @neighbor_fill_surfaces ),
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( map @$_, @$new_internal_solid ),
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]);
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# subtract intersections from layer surfaces to get resulting inner surfaces
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my $internal = diff_ex(
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[ map $_->p, grep $_->surface_type eq 'internal', @neighbor_fill_surfaces ],
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[ map @$_, @$internal_solid ],
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);
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Slic3r::debugf " %d internal-solid and %d internal surfaces found\n",
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scalar(@$internal_solid), scalar(@$internal);
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# Note: due to floating point math we're going to get some very small
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# polygons as $internal; they will be removed by removed_small_features()
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# assign resulting inner surfaces to layer
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my $neighbor_fill_surfaces = $self->layers->[$n]->fill_surfaces;
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@$neighbor_fill_surfaces = ();
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push @$neighbor_fill_surfaces, Slic3r::Surface->new
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(expolygon => $_, surface_type => 'internal')
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for @$internal;
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# assign new internal-solid surfaces to layer
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push @$neighbor_fill_surfaces, Slic3r::Surface->new
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|
(expolygon => $_, surface_type => 'internal-solid')
|
|
for @$internal_solid;
|
|
|
|
# assign top and bottom surfaces to layer
|
|
foreach my $s (Slic3r::Surface->group(grep $_->surface_type =~ /top|bottom/, @neighbor_fill_surfaces)) {
|
|
my $solid_surfaces = diff_ex(
|
|
[ map $_->p, @$s ],
|
|
[ map @$_, @$internal_solid, @$internal ],
|
|
);
|
|
push @$neighbor_fill_surfaces, Slic3r::Surface->new
|
|
(expolygon => $_, surface_type => $s->[0]->surface_type, bridge_angle => $s->[0]->bridge_angle)
|
|
for @$solid_surfaces;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sub extrude_skirt {
|
|
my $self = shift;
|
|
return unless $Slic3r::skirts > 0;
|
|
|
|
# collect points from all layers contained in skirt height
|
|
my $skirt_height = $Slic3r::skirt_height;
|
|
$skirt_height = $self->layer_count if $skirt_height > $self->layer_count;
|
|
my @layers = map $self->layer($_), 0..($skirt_height-1);
|
|
my @points = (
|
|
(map @$_, map @{$_->expolygon}, map @{$_->slices}, @layers),
|
|
(map @$_, map @{$_->thin_walls}, @layers),
|
|
(map @{$_->polyline}, map @{$_->support_fills->paths}, grep $_->support_fills, @layers),
|
|
);
|
|
return if @points < 3; # at least three points required for a convex hull
|
|
|
|
# duplicate points to take copies into account
|
|
my @all_points = map move_points($_, @points), @{$self->copies};
|
|
|
|
# find out convex hull
|
|
my $convex_hull = convex_hull(\@all_points);
|
|
|
|
# draw outlines from outside to inside
|
|
my @skirts = ();
|
|
for (my $i = $Slic3r::skirts - 1; $i >= 0; $i--) {
|
|
my $distance = scale ($Slic3r::skirt_distance + ($Slic3r::flow_spacing * $i));
|
|
my $outline = offset([$convex_hull], $distance, $Slic3r::resolution * 100, JT_ROUND);
|
|
push @skirts, Slic3r::ExtrusionLoop->new(
|
|
polygon => Slic3r::Polygon->new(@{$outline->[0]}),
|
|
role => 'skirt',
|
|
);
|
|
}
|
|
|
|
# apply skirts to all layers
|
|
push @{$_->skirts}, @skirts for @layers;
|
|
}
|
|
|
|
# combine fill surfaces across layers
|
|
sub infill_every_layers {
|
|
my $self = shift;
|
|
return unless $Slic3r::infill_every_layers > 1 && $Slic3r::fill_density > 0;
|
|
|
|
# start from bottom, skip first layer
|
|
for (my $i = 1; $i < $self->layer_count; $i++) {
|
|
my $layer = $self->layer($i);
|
|
|
|
# skip layer if no internal fill surfaces
|
|
next if !grep $_->surface_type eq 'internal', @{$layer->fill_surfaces};
|
|
|
|
# for each possible depth, look for intersections with the lower layer
|
|
# we do this from the greater depth to the smaller
|
|
for (my $d = $Slic3r::infill_every_layers - 1; $d >= 1; $d--) {
|
|
next if ($i - $d) < 0;
|
|
my $lower_layer = $self->layer($i - 1);
|
|
|
|
# select surfaces of the lower layer having the depth we're looking for
|
|
my @lower_surfaces = grep $_->depth_layers == $d && $_->surface_type eq 'internal',
|
|
@{$lower_layer->fill_surfaces};
|
|
next if !@lower_surfaces;
|
|
|
|
# calculate intersection between our surfaces and theirs
|
|
my $intersection = intersection_ex(
|
|
[ map $_->p, grep $_->depth_layers <= $d, @lower_surfaces ],
|
|
[ map $_->p, grep $_->surface_type eq 'internal', @{$layer->fill_surfaces} ],
|
|
);
|
|
next if !@$intersection;
|
|
|
|
# new fill surfaces of the current layer are:
|
|
# - any non-internal surface
|
|
# - intersections found (with a $d + 1 depth)
|
|
# - any internal surface not belonging to the intersection (with its original depth)
|
|
{
|
|
my @new_surfaces = ();
|
|
push @new_surfaces, grep $_->surface_type ne 'internal', @{$layer->fill_surfaces};
|
|
push @new_surfaces, map Slic3r::Surface->new
|
|
(expolygon => $_, surface_type => 'internal', depth_layers => $d + 1), @$intersection;
|
|
|
|
foreach my $depth (reverse $d..$Slic3r::infill_every_layers) {
|
|
push @new_surfaces, map Slic3r::Surface->new
|
|
(expolygon => $_, surface_type => 'internal', depth_layers => $depth),
|
|
|
|
# difference between our internal layers with depth == $depth
|
|
# and the intersection found
|
|
@{diff_ex(
|
|
[
|
|
map $_->p, grep $_->surface_type eq 'internal' && $_->depth_layers == $depth,
|
|
@{$layer->fill_surfaces},
|
|
],
|
|
[ map @$_, @$intersection ],
|
|
1,
|
|
)};
|
|
}
|
|
@{$layer->fill_surfaces} = @new_surfaces;
|
|
}
|
|
|
|
# now we remove the intersections from lower layer
|
|
{
|
|
my @new_surfaces = ();
|
|
push @new_surfaces, grep $_->surface_type ne 'internal', @{$lower_layer->fill_surfaces};
|
|
foreach my $depth (1..$Slic3r::infill_every_layers) {
|
|
push @new_surfaces, map Slic3r::Surface->new
|
|
(expolygon => $_, surface_type => 'internal', depth_layers => $depth),
|
|
|
|
# difference between internal layers with depth == $depth
|
|
# and the intersection found
|
|
@{diff_ex(
|
|
[
|
|
map $_->p, grep $_->surface_type eq 'internal' && $_->depth_layers == $depth,
|
|
@{$lower_layer->fill_surfaces},
|
|
],
|
|
[ map @$_, @$intersection ],
|
|
1,
|
|
)};
|
|
}
|
|
@{$lower_layer->fill_surfaces} = @new_surfaces;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sub generate_support_material {
|
|
my $self = shift;
|
|
|
|
# determine unsupported surfaces
|
|
my %layers = ();
|
|
my @unsupported_expolygons = ();
|
|
{
|
|
my (@a, @b) = ();
|
|
for my $i (reverse 0 .. $#{$self->layers}) {
|
|
my $layer = $self->layers->[$i];
|
|
my @c = ();
|
|
if (@b) {
|
|
@c = @{diff_ex(
|
|
[ map @$_, @b ],
|
|
[ map @$_, map $_->expolygon->offset_ex(scale $Slic3r::flow_width), @{$layer->slices} ],
|
|
)};
|
|
$layers{$i} = [@c];
|
|
}
|
|
@b = @{union_ex([ map @$_, @c, @a ])};
|
|
|
|
# get unsupported surfaces for current layer
|
|
@a = map $_->expolygon->offset_ex(scale $Slic3r::flow_spacing * $Slic3r::perimeters),
|
|
grep $_->surface_type eq 'bottom' && !defined $_->bridge_angle,
|
|
@{$layer->fill_surfaces};
|
|
|
|
$_->simplify(scale $Slic3r::flow_spacing * 3) for @a;
|
|
push @unsupported_expolygons, @a;
|
|
}
|
|
}
|
|
return if !@unsupported_expolygons;
|
|
|
|
# generate paths for the pattern that we're going to use
|
|
my $support_patterns = [];
|
|
{
|
|
my @support_material_areas = map $_->offset_ex(scale 5),
|
|
@{union_ex([ map @$_, @unsupported_expolygons ])};
|
|
|
|
my $fill = Slic3r::Fill->new(print => $self);
|
|
foreach my $angle (0, 90) {
|
|
my @patterns = ();
|
|
foreach my $expolygon (@support_material_areas) {
|
|
my @paths = $fill->fillers->{rectilinear}->fill_surface(
|
|
Slic3r::Surface->new(
|
|
expolygon => $expolygon,
|
|
bridge_angle => $Slic3r::fill_angle + 45 + $angle,
|
|
),
|
|
density => 0.20,
|
|
flow_spacing => $Slic3r::flow_spacing,
|
|
);
|
|
my $params = shift @paths;
|
|
|
|
push @patterns,
|
|
map Slic3r::ExtrusionPath->new(
|
|
polyline => Slic3r::Polyline->new(@$_),
|
|
role => 'support-material',
|
|
depth_layers => 1,
|
|
flow_spacing => $params->{flow_spacing},
|
|
), @paths;
|
|
}
|
|
push @$support_patterns, [@patterns];
|
|
}
|
|
}
|
|
|
|
if (0) {
|
|
require "Slic3r/SVG.pm";
|
|
Slic3r::SVG::output(undef, "support.svg",
|
|
polylines => [ map $_->polyline, map @$_, @$support_patterns ],
|
|
);
|
|
}
|
|
|
|
# apply the pattern to layers
|
|
{
|
|
my $clip_pattern = sub {
|
|
my ($layer_id, $expolygons) = @_;
|
|
my @paths = ();
|
|
foreach my $expolygon (@$expolygons) {
|
|
push @paths, map $_->clip_with_expolygon($expolygon),
|
|
map $_->clip_with_polygon($expolygon->bounding_box_polygon),
|
|
@{$support_patterns->[ $layer_id % 2 ]};
|
|
};
|
|
return @paths;
|
|
};
|
|
my %layer_paths = ();
|
|
Slic3r::parallelize(
|
|
items => [ keys %layers ],
|
|
thread_cb => sub {
|
|
my $q = shift;
|
|
my $paths = {};
|
|
while (defined (my $layer_id = $q->dequeue)) {
|
|
$paths->{$layer_id} = [ $clip_pattern->($layer_id, $layers{$layer_id}) ];
|
|
}
|
|
return $paths;
|
|
},
|
|
collect_cb => sub {
|
|
my $paths = shift;
|
|
$layer_paths{$_} = $paths->{$_} for keys %$paths;
|
|
},
|
|
no_threads_cb => sub {
|
|
$layer_paths{$_} = [ $clip_pattern->($_, $layers{$_}) ] for keys %layers;
|
|
},
|
|
);
|
|
|
|
foreach my $layer_id (keys %layer_paths) {
|
|
my $layer = $self->layers->[$layer_id];
|
|
$layer->support_fills(Slic3r::ExtrusionPath::Collection->new);
|
|
push @{$layer->support_fills->paths}, @{$layer_paths{$layer_id}};
|
|
}
|
|
}
|
|
}
|
|
|
|
sub export_gcode {
|
|
my $self = shift;
|
|
my ($file) = @_;
|
|
|
|
# open output gcode file
|
|
open my $fh, ">", $file
|
|
or die "Failed to open $file for writing\n";
|
|
|
|
# write some information
|
|
my @lt = localtime;
|
|
printf $fh "; generated by Slic3r $Slic3r::VERSION on %02d-%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/, $Slic3r::notes;
|
|
print $fh "\n" if $Slic3r::notes;
|
|
|
|
for (qw(layer_height perimeters solid_layers fill_density nozzle_diameter filament_diameter
|
|
extrusion_multiplier perimeter_speed infill_speed travel_speed extrusion_width_ratio scale)) {
|
|
printf $fh "; %s = %s\n", $_, Slic3r::Config->get($_);
|
|
}
|
|
printf $fh "; single wall width = %.2fmm\n", $Slic3r::flow_width;
|
|
print $fh "\n";
|
|
|
|
# write start commands to file
|
|
printf $fh "M%s %s%d ; set bed temperature\n",
|
|
($Slic3r::gcode_flavor eq 'makerbot' ? '109' : '190'),
|
|
($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::first_layer_bed_temperature
|
|
if $Slic3r::first_layer_bed_temperature && $Slic3r::start_gcode !~ /M190/i;
|
|
printf $fh "M104 %s%d ; set temperature\n",
|
|
($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::first_layer_temperature
|
|
if $Slic3r::first_layer_temperature;
|
|
printf $fh "%s\n", Slic3r::Config->replace_options($Slic3r::start_gcode);
|
|
printf $fh "M109 %s%d ; wait for temperature to be reached\n",
|
|
($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::first_layer_temperature
|
|
if $Slic3r::first_layer_temperature && $Slic3r::gcode_flavor ne 'makerbot'
|
|
&& $Slic3r::start_gcode !~ /M109/i;
|
|
print $fh "G90 ; use absolute coordinates\n";
|
|
print $fh "G21 ; set units to millimeters\n";
|
|
if ($Slic3r::gcode_flavor =~ /^(?:reprap|teacup)$/) {
|
|
printf $fh "G92 %s0 ; reset extrusion distance\n", $Slic3r::extrusion_axis;
|
|
if ($Slic3r::gcode_flavor =~ /^(?:reprap|makerbot)$/) {
|
|
if ($Slic3r::use_relative_e_distances) {
|
|
print $fh "M83 ; use relative distances for extrusion\n";
|
|
} else {
|
|
print $fh "M82 ; use absolute distances for extrusion\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
# calculate X,Y shift to center print around specified origin
|
|
my @shift = (
|
|
$Slic3r::print_center->[X] - (unscale $self->total_x_length / 2),
|
|
$Slic3r::print_center->[Y] - (unscale $self->total_y_length / 2),
|
|
);
|
|
|
|
# set up our extruder object
|
|
my $extruder = Slic3r::Extruder->new;
|
|
my $min_print_speed = 60 * $Slic3r::min_print_speed;
|
|
my $dec = $extruder->dec;
|
|
if ($Slic3r::support_material && $Slic3r::support_material_tool > 0) {
|
|
print $fh $extruder->set_tool(0);
|
|
}
|
|
print $fh $extruder->set_fan(0, 1) if $Slic3r::cooling && $Slic3r::disable_fan_first_layers;
|
|
|
|
# write gcode commands layer by layer
|
|
foreach my $layer (@{ $self->layers }) {
|
|
if ($layer->id == 1) {
|
|
printf $fh "M104 %s%d ; set temperature\n",
|
|
($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::temperature
|
|
if $Slic3r::temperature && $Slic3r::temperature != $Slic3r::first_layer_temperature;
|
|
printf $fh "M140 %s%d ; set bed temperature\n",
|
|
($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::bed_temperature
|
|
if $Slic3r::bed_temperature && $Slic3r::bed_temperature != $Slic3r::first_layer_bed_temperature;
|
|
}
|
|
|
|
# go to layer
|
|
my $layer_gcode = $extruder->change_layer($layer);
|
|
$extruder->elapsed_time(0);
|
|
|
|
# extrude skirts
|
|
$extruder->shift_x($shift[X]);
|
|
$extruder->shift_y($shift[Y]);
|
|
$layer_gcode .= $extruder->set_acceleration($Slic3r::perimeter_acceleration);
|
|
$layer_gcode .= $extruder->extrude_loop($_, 'skirt') for @{ $layer->skirts };
|
|
|
|
for (my $i = 0; $i <= $#{$self->copies}; $i++) {
|
|
my $copy = $self->copies->[$i];
|
|
|
|
# retract explicitely because changing the shift_[xy] properties below
|
|
# won't always trigger the automatic retraction
|
|
$layer_gcode .= $extruder->retract;
|
|
|
|
$extruder->shift_x($shift[X] + unscale $copy->[X]);
|
|
$extruder->shift_y($shift[Y] + unscale $copy->[Y]);
|
|
|
|
# extrude perimeters
|
|
$layer_gcode .= $extruder->extrude($_, 'perimeter') for @{ $layer->perimeters };
|
|
|
|
# extrude fills
|
|
$layer_gcode .= $extruder->set_acceleration($Slic3r::infill_acceleration);
|
|
for my $fill (@{ $layer->fills }) {
|
|
$layer_gcode .= $extruder->extrude_path($_, 'fill')
|
|
for $fill->shortest_path($extruder->last_pos);
|
|
}
|
|
|
|
# extrude support material
|
|
if ($layer->support_fills) {
|
|
$layer_gcode .= $extruder->set_tool($Slic3r::support_material_tool)
|
|
if $Slic3r::support_material_tool > 0;
|
|
$layer_gcode .= $extruder->extrude_path($_, 'support material')
|
|
for $layer->support_fills->shortest_path($extruder->last_pos);
|
|
$layer_gcode .= $extruder->set_tool(0)
|
|
if $Slic3r::support_material_tool > 0;
|
|
}
|
|
}
|
|
last if !$layer_gcode;
|
|
|
|
my $fan_speed = $Slic3r::fan_always_on ? $Slic3r::min_fan_speed : 0;
|
|
my $speed_factor = 1;
|
|
if ($Slic3r::cooling) {
|
|
my $layer_time = $extruder->elapsed_time;
|
|
Slic3r::debugf "Layer %d estimated printing time: %d seconds\n", $layer->id, $layer_time;
|
|
if ($layer_time < $Slic3r::slowdown_below_layer_time) {
|
|
$fan_speed = $Slic3r::max_fan_speed;
|
|
$speed_factor = $layer_time / $Slic3r::slowdown_below_layer_time;
|
|
} elsif ($layer_time < $Slic3r::fan_below_layer_time) {
|
|
$fan_speed = $Slic3r::max_fan_speed - ($Slic3r::max_fan_speed - $Slic3r::min_fan_speed)
|
|
* ($layer_time - $Slic3r::slowdown_below_layer_time)
|
|
/ ($Slic3r::fan_below_layer_time - $Slic3r::slowdown_below_layer_time); #/
|
|
}
|
|
Slic3r::debugf " fan = %d%%, speed = %d%%\n", $fan_speed, $speed_factor * 100;
|
|
|
|
if ($speed_factor < 1) {
|
|
$layer_gcode =~ s/^(?=.*? [XY])(?=.*? E)(G1 .*?F)(\d+(?:\.\d+)?)/
|
|
my $new_speed = $2 * $speed_factor;
|
|
$1 . sprintf("%.${dec}f", $new_speed < $min_print_speed ? $min_print_speed : $new_speed)
|
|
/gexm;
|
|
}
|
|
$fan_speed = 0 if $layer->id < $Slic3r::disable_fan_first_layers;
|
|
}
|
|
$layer_gcode = $extruder->set_fan($fan_speed) . $layer_gcode;
|
|
|
|
# bridge fan speed
|
|
if (!$Slic3r::cooling || $Slic3r::bridge_fan_speed == 0 || $layer->id < $Slic3r::disable_fan_first_layers) {
|
|
$layer_gcode =~ s/^;_BRIDGE_FAN_(?:START|END)\n//gm;
|
|
} else {
|
|
$layer_gcode =~ s/^;_BRIDGE_FAN_START\n/ $extruder->set_fan($Slic3r::bridge_fan_speed, 1) /gmex;
|
|
$layer_gcode =~ s/^;_BRIDGE_FAN_END\n/ $extruder->set_fan($fan_speed, 1) /gmex;
|
|
}
|
|
|
|
print $fh $layer_gcode;
|
|
}
|
|
|
|
# save statistic data
|
|
$self->total_extrusion_length($extruder->total_extrusion_length);
|
|
|
|
# write end commands to file
|
|
print $fh $extruder->retract;
|
|
print $fh $extruder->set_fan(0);
|
|
print $fh "M501 ; reset acceleration\n" if $Slic3r::acceleration;
|
|
printf $fh "%s\n", Slic3r::Config->replace_options($Slic3r::end_gcode);
|
|
|
|
printf $fh "; filament used = %.1fmm (%.1fcm3)\n",
|
|
$self->total_extrusion_length, $self->total_extrusion_volume;
|
|
|
|
# close our gcode file
|
|
close $fh;
|
|
}
|
|
|
|
sub total_extrusion_volume {
|
|
my $self = shift;
|
|
return $self->total_extrusion_length * ($Slic3r::filament_diameter**2) * PI/4 / 1000;
|
|
}
|
|
|
|
1;
|