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New feature: brim connections
This commit is contained in:
Alessandro Ranellucci
parent
7dfea3ecf0
commit
e901514212
@ -1285,7 +1285,9 @@ sub load_print_toolpaths {
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return if !$print->step_done(STEP_SKIRT);
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return if !$print->step_done(STEP_BRIM);
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return if !$print->has_skirt && $print->config->brim_width == 0;
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return if !$print->has_skirt
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&& $print->config->brim_width == 0
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&& $print->config->brim_connections_width == 0;
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my $qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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my $tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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@ -479,7 +479,7 @@ sub build {
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perimeter_acceleration infill_acceleration bridge_acceleration
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first_layer_acceleration default_acceleration
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skirts skirt_distance skirt_height min_skirt_length
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brim_width
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brim_connections_width brim_width
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support_material support_material_threshold support_material_enforce_layers
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raft_layers
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support_material_pattern support_material_spacing support_material_angle
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@ -571,6 +571,7 @@ sub build {
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{
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my $optgroup = $page->new_optgroup('Brim');
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$optgroup->append_single_option_line('brim_width');
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$optgroup->append_single_option_line('brim_connections_width');
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}
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}
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@ -848,7 +849,7 @@ sub _update {
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$self->get_field($_)->toggle($have_skirt)
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for qw(skirt_distance skirt_height);
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my $have_brim = $config->brim_width > 0;
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my $have_brim = $config->brim_width > 0 || $config->brim_connections_width;
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# perimeter_extruder uses the same logic as in Print::extruders()
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$self->get_field('perimeter_extruder')->toggle($have_perimeters || $have_brim);
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@ -12,8 +12,9 @@ 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 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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offset2 union union_pt_chained JT_ROUND JT_SQUARE diff_pl);
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use Slic3r::Print::State ':steps';
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use Slic3r::Surface qw(S_TYPE_BOTTOM);
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our $status_cb;
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@ -356,7 +357,7 @@ sub make_brim {
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# checking whether we need to generate them
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$self->brim->clear;
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if ($self->config->brim_width == 0) {
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if ($self->config->brim_width == 0 && $self->config->brim_connections_width == 0) {
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$self->set_step_done(STEP_BRIM);
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return;
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}
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@ -390,7 +391,7 @@ sub make_brim {
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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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my $num_loops = int($self->config->brim_width / $flow->width + 0.5);
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for my $i (reverse 1 .. $num_loops) {
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# JT_SQUARE ensures no vertex is outside the given offset distance
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# -0.5 because islands are not represented by their centerlines
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@ -409,6 +410,65 @@ sub make_brim {
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),
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), reverse @{union_pt_chained(\@loops)});
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if ($self->config->brim_connections_width > 0) {
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# get islands to connects
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@islands = map convex_hull(\@$_), @islands;
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@islands = @{offset(\@islands, ($num_loops-0.2) * $flow->scaled_spacing, 10000, JT_SQUARE)};
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# compute centroid for each island
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my @centroids = map $_->centroid, @islands;
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# in order to check visibility we need to account for the connections width,
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# so let's use grown islands
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my $scaled_width = scale($self->config->brim_connections_width);
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my $grown = offset(\@islands, +$scaled_width/2);
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# find pairs of islands having direct visibility
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my @lines = ();
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for my $i (0..$#islands) {
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for my $j (($i+1)..$#islands) {
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# check visibility
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my $line = Slic3r::Line->new(@centroids[$i,$j]);
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next if @{diff_pl([$line->as_polyline], $grown)} != 1;
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push @lines, $line;
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}
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}
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my $filler = Slic3r::Filler->new_from_type('rectilinear');
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$filler->set_spacing($flow->spacing);
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$filler->set_dont_adjust(1);
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# subtract already generated connections in order to prevent crossings
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# and overextrusion
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my @other = ();
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foreach my $line (@lines) {
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my $expolygons = diff_ex(
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$line->grow($scaled_width/2),
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[ @islands, @other ],
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);
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push @other, map $_->clone, map @$_, @$expolygons;
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$filler->set_angle($line->direction);
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foreach my $expolygon (@$expolygons) {
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my $paths = $filler->fill_surface(
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Slic3r::Surface->new(expolygon => $expolygon, surface_type => S_TYPE_BOTTOM),
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layer_height => $first_layer_height,
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density => 1,
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);
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$self->brim->append(map Slic3r::ExtrusionPath->new(
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polyline => $_,
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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 => $first_layer_height,
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), @$paths);
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}
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}
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}
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$self->set_step_done(STEP_BRIM);
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}
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@ -357,7 +357,7 @@ sub process_layer {
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# check whether we're going to apply spiralvase logic
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if (defined $self->_spiral_vase) {
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$self->_spiral_vase->enable(
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($layer->id > 0 || $self->print->config->brim_width == 0)
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($layer->id > 0 || $self->print->config->brim_width == 0 || $self->print->config->brim_connections_width == 0)
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&& ($layer->id >= $self->print->config->skirt_height && !$self->print->has_infinite_skirt)
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&& !defined(first { $_->region->config->bottom_solid_layers > $layer->id } @{$layer->regions})
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&& !defined(first { $_->perimeters->items_count > 1 } @{$layer->regions})
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@ -447,7 +447,7 @@ sub process_layer {
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$gcode .= $self->_gcodegen->set_extruder($self->print->regions->[0]->config->perimeter_extruder-1);
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$self->_gcodegen->set_origin(Slic3r::Pointf->new(0,0));
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$self->_gcodegen->avoid_crossing_perimeters->set_use_external_mp(1);
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$gcode .= $self->_gcodegen->extrude_loop($_, 'brim', $object->config->support_material_speed)
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$gcode .= $self->_gcodegen->extrude($_, 'brim', $object->config->support_material_speed)
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for @{$self->print->brim};
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$self->_brim_done(1);
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$self->_gcodegen->avoid_crossing_perimeters->set_use_external_mp(0);
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@ -163,7 +163,8 @@ Print::invalidate_state_by_config_options(const std::vector<t_config_option_key>
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|| *opt_key == "min_skirt_length"
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|| *opt_key == "ooze_prevention") {
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steps.insert(psSkirt);
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} else if (*opt_key == "brim_width") {
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} else if (*opt_key == "brim_width"
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|| *opt_key == "brim_connections_width") {
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steps.insert(psBrim);
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steps.insert(psSkirt);
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} else if (*opt_key == "nozzle_diameter"
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@ -304,7 +305,7 @@ Print::object_extruders() const
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FOREACH_REGION(this, region) {
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// these checks reflect the same logic used in the GUI for enabling/disabling
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// extruder selection fields
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if ((*region)->config.perimeters.value > 0 || this->config.brim_width.value > 0)
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if ((*region)->config.perimeters.value > 0 || this->config.brim_width.value > 0 || this->config.brim_connections_width.value > 0)
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extruders.insert((*region)->config.perimeter_extruder - 1);
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if ((*region)->config.fill_density.value > 0)
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@ -91,6 +91,14 @@ PrintConfigDef::PrintConfigDef()
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def->min = 0;
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def->default_value = new ConfigOptionFloat(60);
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def = this->add("brim_connections_width", coFloat);
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def->label = "Brim connections width";
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def->tooltip = "If set to a positive value, straight connections will be built on the first layer between adjacent objects.";
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def->sidetext = "mm";
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def->cli = "brim-connections-width=f";
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def->min = 0;
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def->default_value = new ConfigOptionFloat(0);
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def = this->add("brim_width", coFloat);
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def->label = "Brim width";
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def->tooltip = "Horizontal width of the brim that will be printed around each object on the first layer.";
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@ -366,6 +366,7 @@ class PrintConfig : public GCodeConfig
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ConfigOptionInt bed_temperature;
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ConfigOptionFloat bridge_acceleration;
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ConfigOptionInt bridge_fan_speed;
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ConfigOptionFloat brim_connections_width;
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ConfigOptionFloat brim_width;
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ConfigOptionBool complete_objects;
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ConfigOptionBool cooling;
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@ -425,6 +426,7 @@ class PrintConfig : public GCodeConfig
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OPT_PTR(bed_temperature);
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OPT_PTR(bridge_acceleration);
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OPT_PTR(bridge_fan_speed);
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OPT_PTR(brim_connections_width);
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OPT_PTR(brim_width);
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OPT_PTR(complete_objects);
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OPT_PTR(cooling);
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