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Don't store ->surfaces anymore. Save memory, save time
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Alessandro Ranellucci
parent
5930267de9
commit
15f07197d8
3 changed files with 19 additions and 46 deletions
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@ -32,13 +32,7 @@ has 'thin_walls' => (is => 'rw', default => sub { [] });
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# need to be filled with a medial axis
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has 'thin_fills' => (is => 'rw', default => sub { [] });
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# collection of expolygons generated by offsetting the innermost perimeter(s)
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# they represent boundaries of areas to fill, typed (top/bottom/internal)
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has 'surfaces' => (is => 'rw', default => sub { [] });
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# collection of surfaces for infill generation. the difference between surfaces
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# fill_surfaces is that this one honors fill_density == 0 and turns small internal
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# surfaces into solid ones
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# collection of surfaces for infill generation
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has 'fill_surfaces' => (is => 'rw', default => sub { [] });
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# ordered collection of extrusion paths/loops to build all perimeters
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@ -160,7 +154,7 @@ sub make_perimeters {
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])};
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$self->perimeters([]);
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$self->surfaces([]);
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$self->fill_surfaces([]);
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$self->thin_fills([]);
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# for each island:
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@ -227,9 +221,14 @@ sub make_perimeters {
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# create one more offset to be used as boundary for fill
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{
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my @fill_boundaries = map $_->offset_ex(-$distance), @last_offsets;
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my @fill_boundaries = @{union_ex([
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Slic3r::Geometry::Clipper::offset(
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[Slic3r::Geometry::Clipper::offset([ map @$_, @last_offsets ], -1.5*$distance)],
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+0.5*$distance,
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),
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])};
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$_->simplify(&Slic3r::SCALED_RESOLUTION) for @fill_boundaries;
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push @{ $self->surfaces }, @fill_boundaries;
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push @{ $self->fill_surfaces }, @fill_boundaries;
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}
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# fill gaps
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@ -390,48 +389,26 @@ sub _add_perimeter {
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sub prepare_fill_surfaces {
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my $self = shift;
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my @surfaces = @{$self->surfaces};
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# if no solid layers are requested, turn top/bottom surfaces to internal
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# note that this modifies $self->surfaces in place
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if ($Slic3r::Config->top_solid_layers == 0) {
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$_->surface_type(S_TYPE_INTERNAL) for grep $_->surface_type == S_TYPE_TOP, @surfaces;
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$_->surface_type(S_TYPE_INTERNAL) for grep $_->surface_type == S_TYPE_TOP, @{$self->fill_surfaces};
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}
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if ($Slic3r::Config->bottom_solid_layers == 0) {
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$_->surface_type(S_TYPE_INTERNAL) for grep $_->surface_type == S_TYPE_BOTTOM, @surfaces;
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$_->surface_type(S_TYPE_INTERNAL) for grep $_->surface_type == S_TYPE_BOTTOM, @{$self->fill_surfaces};
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}
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# if hollow object is requested, remove internal surfaces
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if ($Slic3r::Config->fill_density == 0) {
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@surfaces = grep $_->surface_type != S_TYPE_INTERNAL, @surfaces;
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}
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# remove unprintable regions (they would slow down the infill process and also cause
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# some weird failures during bridge neighbor detection)
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{
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my $distance = $self->infill_flow->scaled_spacing / 2;
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@surfaces = map {
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my $surface = $_;
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# offset inwards
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my @offsets = $surface->expolygon->offset_ex(-$distance);
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@offsets = @{union_ex([ Slic3r::Geometry::Clipper::offset([ map @$_, @offsets ], $distance)] )}; # isn't the union_ex useless?
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map Slic3r::Surface->new(
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expolygon => $_,
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surface_type => $surface->surface_type,
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), @offsets;
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} @surfaces;
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@{$self->fill_surfaces} = grep $_->surface_type != S_TYPE_INTERNAL, @{$self->fill_surfaces};
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}
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# turn too small internal regions into solid regions
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{
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my $min_area = scale scale $Slic3r::Config->solid_infill_below_area; # scaling an area requires two calls!
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my @small = grep $_->surface_type == S_TYPE_INTERNAL && $_->expolygon->contour->area <= $min_area, @surfaces;
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my @small = grep $_->surface_type == S_TYPE_INTERNAL && $_->expolygon->contour->area <= $min_area, @{$self->fill_surfaces};
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$_->surface_type(S_TYPE_INTERNALSOLID) for @small;
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Slic3r::debugf "identified %d small solid surfaces at layer %d\n", scalar(@small), $self->id if @small > 0;
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}
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$self->fill_surfaces([@surfaces]);
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}
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# make bridges printable
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@ -345,8 +345,8 @@ sub export_gcode {
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for @{$layer->slices}, (map $_->expolygon, map @{$_->slices}, @{$layer->regions});
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}
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# this will clip $layer->surfaces to the infill boundaries
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# and split them in top/bottom/internal surfaces;
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# this will transform $layer->fill_surfaces from expolygon
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# to typed top/bottom/internal surfaces;
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$status_cb->(30, "Detecting solid surfaces");
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$_->detect_surfaces_type for @{$self->objects};
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@ -364,9 +364,6 @@ sub export_gcode {
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$status_cb->(60, "Generating horizontal shells");
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$_->discover_horizontal_shells for @{$self->objects};
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# free memory
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$_->surfaces(undef) for map @{$_->regions}, map @{$_->layers}, @{$self->objects};
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# combine fill surfaces to honor the "infill every N layers" option
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$status_cb->(70, "Combining infill");
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$_->combine_infill for @{$self->objects};
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@ -304,14 +304,14 @@ sub detect_surfaces_type {
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# clip surfaces to the fill boundaries
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foreach my $layer (@{$self->layers}) {
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my $layerm = $layer->regions->[$region_id];
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my $fill_boundaries = [ map @$_, @{$layerm->surfaces} ];
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@{$layerm->surfaces} = ();
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my $fill_boundaries = [ map @$_, @{$layerm->fill_surfaces} ];
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@{$layerm->fill_surfaces} = ();
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foreach my $surface (@{$layerm->slices}) {
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my $intersection = intersection_ex(
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[ $surface->p ],
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$fill_boundaries,
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);
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push @{$layerm->surfaces}, map Slic3r::Surface->new
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push @{$layerm->fill_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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@ -352,14 +352,13 @@ sub discover_horizontal_shells {
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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->[$n]->regions->[$region_id]->surfaces};
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my @neighbor_fill_surfaces = @{$self->layers->[$n]->regions->[$region_id]->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 == S_TYPE_INTERNAL || $_->surface_type == S_TYPE_INTERNALSOLID } @neighbor_surfaces ],
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[ map $_->p, grep { $_->surface_type == S_TYPE_INTERNAL || $_->surface_type == S_TYPE_INTERNALSOLID } @neighbor_fill_surfaces ],
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undef, 1,
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);
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next if !@$new_internal_solid;
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