diff options
-rw-r--r-- | lib/Slic3r.pm | 1 | ||||
-rw-r--r-- | lib/Slic3r/Fill/Base.pm | 10 | ||||
-rw-r--r-- | lib/Slic3r/Fill2.pm | 294 | ||||
-rw-r--r-- | lib/Slic3r/Print/Object.pm | 7 | ||||
-rw-r--r-- | xs/src/libslic3r/Fill/FillRectilinear2.cpp | 2 |
5 files changed, 313 insertions, 1 deletions
diff --git a/lib/Slic3r.pm b/lib/Slic3r.pm index 44b2a9bf5..1cd67fb73 100644 --- a/lib/Slic3r.pm +++ b/lib/Slic3r.pm @@ -56,6 +56,7 @@ use Slic3r::ExPolygon; use Slic3r::ExtrusionLoop; use Slic3r::ExtrusionPath; use Slic3r::Fill; +use Slic3r::Fill2; use Slic3r::Flow; use Slic3r::Format::AMF; use Slic3r::Format::OBJ; diff --git a/lib/Slic3r/Fill/Base.pm b/lib/Slic3r/Fill/Base.pm index 75c8e03e6..482594a31 100644 --- a/lib/Slic3r/Fill/Base.pm +++ b/lib/Slic3r/Fill/Base.pm @@ -8,6 +8,16 @@ has 'spacing' => (is => 'rw'); # in unscaled coordinates has 'loop_clipping' => (is => 'rw', default => sub { 0 }); # in scaled coordinates has 'bounding_box' => (is => 'ro', required => 0); # Slic3r::Geometry::BoundingBox object +sub set_spacing { + my ($self, $spacing) = @_; + $self->spacing($spacing); +} + +sub set_angle { + my ($self, $angle) = @_; + $self->angle($angle); +} + sub adjust_solid_spacing { my $self = shift; my %params = @_; diff --git a/lib/Slic3r/Fill2.pm b/lib/Slic3r/Fill2.pm new file mode 100644 index 000000000..9e2714b3b --- /dev/null +++ b/lib/Slic3r/Fill2.pm @@ -0,0 +1,294 @@ +# This is derived from Fill.pm +# and it uses the C++ fillers. +package Slic3r::Fill2; +use Moo; + +use List::Util qw(max); +use Slic3r::ExtrusionPath ':roles'; + +use Slic3r::Flow ':roles'; +use Slic3r::Geometry qw(X Y PI scale chained_path deg2rad); +use Slic3r::Geometry::Clipper qw(union union_ex diff diff_ex intersection_ex offset offset2); +use Slic3r::Surface ':types'; + +has 'bounding_box' => (is => 'ro', required => 0); +has 'fillers' => (is => 'rw', default => sub { {} }); + +sub filler { + my $self = shift; + my ($filler) = @_; + + if (!ref $self) { + return Slic3r::Filler->new_from_type($filler); + } + + print "Filler: ", $filler, "\n"; + $self->fillers->{$filler} ||= Slic3r::Filler->new_from_type($filler); + $self->fillers->{$filler}->set_bounding_box($self->bounding_box); + return $self->fillers->{$filler}; +} + + +# Generate infills for Slic3r::Layer::Region. +# The Slic3r::Layer::Region at this point of time may contain +# surfaces of various types (internal/bridge/top/bottom/solid). +# The infills are generated on the groups of surfaces with a compatible type. +# Returns an array of Slic3r::ExtrusionPath::Collection objects containing the infills generaed now +# and the thin fills generated by generate_perimeters(). +sub make_fill { + my $self = shift; + # of type - C++: LayerRegion, Perl: Slic3r::Layer::Region + my ($layerm) = @_; + + Slic3r::debugf "Filling layer %d:\n", $layerm->layer->id; + + my $fill_density = $layerm->region->config->fill_density; + my $infill_flow = $layerm->flow(FLOW_ROLE_INFILL); + my $solid_infill_flow = $layerm->flow(FLOW_ROLE_SOLID_INFILL); + my $top_solid_infill_flow = $layerm->flow(FLOW_ROLE_TOP_SOLID_INFILL); + + # Surfaces are of the type Slic3r::Surface + my @surfaces = (); + + # merge adjacent surfaces + # in case of bridge surfaces, the ones with defined angle will be attached to the ones + # without any angle (shouldn't this logic be moved to process_external_surfaces()?) + { + my @surfaces_with_bridge_angle = grep { $_->bridge_angle >= 0 } @{$layerm->fill_surfaces}; + + # group surfaces by distinct properties + # group is of type Slic3r::SurfaceCollection + my @groups = @{$layerm->fill_surfaces->group}; + + # merge compatible groups (we can generate continuous infill for them) + { + # cache flow widths and patterns used for all solid groups + # (we'll use them for comparing compatible groups) + my @is_solid = my @fw = my @pattern = (); + for (my $i = 0; $i <= $#groups; $i++) { + # we can only merge solid non-bridge surfaces, so discard + # non-solid surfaces + if ($groups[$i][0]->is_solid && (!$groups[$i][0]->is_bridge || $layerm->layer->id == 0)) { + $is_solid[$i] = 1; + $fw[$i] = ($groups[$i][0]->surface_type == S_TYPE_TOP) + ? $top_solid_infill_flow->width + : $solid_infill_flow->width; + $pattern[$i] = $groups[$i][0]->is_external + ? $layerm->region->config->external_fill_pattern + : 'rectilinear'; + } else { + $is_solid[$i] = 0; + $fw[$i] = 0; + $pattern[$i] = 'none'; + } + } + + # loop through solid groups + for (my $i = 0; $i <= $#groups; $i++) { + next if !$is_solid[$i]; + + # find compatible groups and append them to this one + for (my $j = $i+1; $j <= $#groups; $j++) { + next if !$is_solid[$j]; + + if ($fw[$i] == $fw[$j] && $pattern[$i] eq $pattern[$j]) { + # groups are compatible, merge them + push @{$groups[$i]}, @{$groups[$j]}; + splice @groups, $j, 1; + splice @is_solid, $j, 1; + splice @fw, $j, 1; + splice @pattern, $j, 1; + } + } + } + } + + # give priority to bridges + @groups = sort { ($a->[0]->bridge_angle >= 0) ? -1 : 0 } @groups; + + foreach my $group (@groups) { + # Make a union of polygons defining the infiill regions of a group, use a safety offset. + my $union_p = union([ map $_->p, @$group ], 1); + + # Subtract surfaces having a defined bridge_angle from any other, use a safety offset. + if (@surfaces_with_bridge_angle && $group->[0]->bridge_angle < 0) { + $union_p = diff( + $union_p, + [ map $_->p, @surfaces_with_bridge_angle ], + 1, + ); + } + + # subtract any other surface already processed + #FIXME Vojtech: Because the bridge surfaces came first, they are subtracted twice! + my $union = diff_ex( + $union_p, + [ map $_->p, @surfaces ], + 1, + ); + + push @surfaces, map $group->[0]->clone(expolygon => $_), @$union; + } + } + + # we need to detect any narrow surfaces that might collapse + # when adding spacing below + # such narrow surfaces are often generated in sloping walls + # by bridge_over_infill() and combine_infill() as a result of the + # subtraction of the combinable area from the layer infill area, + # which leaves small areas near the perimeters + # we are going to grow such regions by overlapping them with the void (if any) + # TODO: detect and investigate whether there could be narrow regions without + # any void neighbors + { + my $distance_between_surfaces = max( + $infill_flow->scaled_spacing, + $solid_infill_flow->scaled_spacing, + $top_solid_infill_flow->scaled_spacing, + ); + my $collapsed = diff( + [ map @{$_->expolygon}, @surfaces ], + offset2([ map @{$_->expolygon}, @surfaces ], -$distance_between_surfaces/2, +$distance_between_surfaces/2), + 1, + ); + push @surfaces, map Slic3r::Surface->new( + expolygon => $_, + surface_type => S_TYPE_INTERNALSOLID, + ), @{intersection_ex( + offset($collapsed, $distance_between_surfaces), + [ + (map @{$_->expolygon}, grep $_->surface_type == S_TYPE_INTERNALVOID, @surfaces), + (@$collapsed), + ], + 1, + )}; + } + + if (0) { + require "Slic3r/SVG.pm"; + Slic3r::SVG::output("fill_" . $layerm->print_z . ".svg", + expolygons => [ map $_->expolygon, grep !$_->is_solid, @surfaces ], + red_expolygons => [ map $_->expolygon, grep $_->is_solid, @surfaces ], + ); + } + + # Fills are of perl type Slic3r::ExtrusionPath::Collection, c++ type ExtrusionEntityCollection + my @fills = (); + SURFACE: foreach my $surface (@surfaces) { + next if $surface->surface_type == S_TYPE_INTERNALVOID; + my $filler = $layerm->region->config->fill_pattern; + my $density = $fill_density; + my $role = ($surface->surface_type == S_TYPE_TOP) ? FLOW_ROLE_TOP_SOLID_INFILL + : $surface->is_solid ? FLOW_ROLE_SOLID_INFILL + : FLOW_ROLE_INFILL; + my $is_bridge = $layerm->layer->id > 0 && $surface->is_bridge; + my $is_solid = $surface->is_solid; + + if ($surface->is_solid) { + $density = 100; + $filler = 'rectilinear'; + if ($surface->is_external && !$is_bridge) { + $filler = $layerm->region->config->external_fill_pattern; + } + } else { + next SURFACE unless $density > 0; + } + + # get filler object + my $f = $self->filler($filler); + + # calculate the actual flow we'll be using for this infill + my $h = $surface->thickness == -1 ? $layerm->layer->height : $surface->thickness; + my $flow = $layerm->region->flow( + $role, + $h, + $is_bridge || $f->use_bridge_flow, + $layerm->layer->id == 0, + -1, + $layerm->layer->object, + ); + + # calculate flow spacing for infill pattern generation + my $using_internal_flow = 0; + if (!$is_solid && !$is_bridge) { + # it's internal infill, so we can calculate a generic flow spacing + # for all layers, for avoiding the ugly effect of + # misaligned infill on first layer because of different extrusion width and + # layer height + my $internal_flow = $layerm->region->flow( + FLOW_ROLE_INFILL, + $layerm->layer->object->config->layer_height, # TODO: handle infill_every_layers? + 0, # no bridge + 0, # no first layer + -1, # auto width + $layerm->layer->object, + ); + $f->set_spacing($internal_flow->spacing); + $using_internal_flow = 1; + } else { + $f->set_spacing($flow->spacing); + } + + $f->set_layer_id($layerm->layer->id); + $f->set_z($layerm->layer->print_z); + $f->set_angle(deg2rad($layerm->region->config->fill_angle)); + $f->set_loop_clipping(scale($flow->nozzle_diameter) * &Slic3r::LOOP_CLIPPING_LENGTH_OVER_NOZZLE_DIAMETER); + + # apply half spacing using this flow's own spacing and generate infill + my @polylines = $f->fill_surface( + $surface, + density => $density/100, + layer_height => $h, + ); + next unless @polylines; + + + # calculate actual flow from spacing (which might have been adjusted by the infill + # pattern generator) + if ($using_internal_flow) { + # if we used the internal flow we're not doing a solid infill + # so we can safely ignore the slight variation that might have + # been applied to $f->flow_spacing + } else { + $flow = Slic3r::Flow->new_from_spacing( + spacing => $f->spacing, + nozzle_diameter => $flow->nozzle_diameter, + layer_height => $h, + bridge => $is_bridge || $f->use_bridge_flow, + ); + } + + # save into layer + { + my $role = $is_bridge ? EXTR_ROLE_BRIDGE + : $is_solid ? (($surface->surface_type == S_TYPE_TOP) ? EXTR_ROLE_TOPSOLIDFILL : EXTR_ROLE_SOLIDFILL) + : EXTR_ROLE_FILL; + + push @fills, my $collection = Slic3r::ExtrusionPath::Collection->new; + # Only concentric fills are not sorted. + $collection->no_sort($f->no_sort); + $collection->append( + map Slic3r::ExtrusionPath->new( + polyline => $_, + role => $role, + mm3_per_mm => $flow->mm3_per_mm, + width => $flow->width, + height => $flow->height, + ), map @$_, @polylines, + ); + } + } + + # add thin fill regions + # thin_fills are of C++ Slic3r::ExtrusionEntityCollection, perl type Slic3r::ExtrusionPath::Collection + # Unpacks the collection, creates multiple collections per path. + # The path type could be ExtrusionPath, ExtrusionLoop or ExtrusionEntityCollection. + # Why the paths are unpacked? + foreach my $thin_fill (@{$layerm->thin_fills}) { + push @fills, Slic3r::ExtrusionPath::Collection->new($thin_fill); + } + + return @fills; +} + +1; diff --git a/lib/Slic3r/Print/Object.pm b/lib/Slic3r/Print/Object.pm index 897268fe0..42a85e2b4 100644 --- a/lib/Slic3r/Print/Object.pm +++ b/lib/Slic3r/Print/Object.pm @@ -20,6 +20,13 @@ sub fill_maker { return Slic3r::Fill->new(bounding_box => $self->bounding_box); } +# Vojtech's implementation: Create the C++ filler. +# TODO: lazy +sub fill_maker2 { + my $self = shift; + return Slic3r::Fill2->new(bounding_box => $self->bounding_box); +} + sub region_volumes { my $self = shift; return [ map $self->get_region_volumes($_), 0..($self->region_count - 1) ]; diff --git a/xs/src/libslic3r/Fill/FillRectilinear2.cpp b/xs/src/libslic3r/Fill/FillRectilinear2.cpp index b521cc696..1f6e64784 100644 --- a/xs/src/libslic3r/Fill/FillRectilinear2.cpp +++ b/xs/src/libslic3r/Fill/FillRectilinear2.cpp @@ -14,7 +14,7 @@ #include "FillRectilinear2.hpp" -#define SLIC3R_DEBUG +// #define SLIC3R_DEBUG #ifdef SLIC3R_DEBUG #include "SVG.hpp" |