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more work on process_layer.
This commit is contained in:
Joseph Lenox
parent
7d135252b0
commit
2bd1d142c8
@ -434,6 +434,171 @@ PrintGCode::process_layer(size_t idx, const Layer* layer, const Points& copies)
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}
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}
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// extrude brim
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// extrude brim
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if (this->_brim_done) {
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gcode += gcodegen.set_extruder(print.brim_extruder() - 1);
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gcodegen.set_origin(Pointf(0,0));
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gcodegen.avoid_crossing_perimeters.use_external_mp = true;
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for (const auto& b : print.brim.entities) {
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gcode += gcodegen.extrude(*b, "brim", obj.config.get_abs_value("support_material_speed"));
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}
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this->_brim_done = true;
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gcodegen.avoid_crossing_perimeters.use_external_mp = false;
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// allow a straight travel move to the first object point
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gcodegen.avoid_crossing_perimeters.disable_once = true;
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}
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auto copy_idx = 0U;
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for (const auto& copy : copies) {
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if (config.label_printed_objects) {
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gcode += "; printing object " + obj.model_object().name + " id:" + std::to_string(idx) + " copy " + std::to_string(copy_idx) + "\n";
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}
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// when starting a new object, use the external motion planner for the first travel move
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if (this->_last_obj_copy.first != copy && this->_last_obj_copy.second )
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gcodegen.avoid_crossing_perimeters.use_external_mp = true;
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this->_last_obj_copy.first = copy;
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this->_last_obj_copy.second = true;
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gcodegen.set_origin(Pointf::new_unscale(copy));
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// extrude support material before other things because it might use a lower Z
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// and also because we avoid travelling on other things when printing it
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if(layer->is_support()) {
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const SupportLayer* slayer = dynamic_cast<const SupportLayer*>(layer);
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ExtrusionEntityCollection paths;
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if (slayer->support_interface_fills.size() > 0) {
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gcode += gcodegen.set_extruder(obj.config.support_material_interface_extruder - 1);
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slayer->support_interface_fills.chained_path_from(gcodegen.last_pos(), &paths, false);
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for (const auto& path : paths) {
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gcode += gcodegen.extrude(*path, "support material interface", obj.config.get_abs_value("support_material_interface_speed"));
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}
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}
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if (slayer->support_fills.size() > 0) {
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gcode += gcodegen.set_extruder(obj.config.support_material_extruder - 1);
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slayer->support_fills.chained_path_from(gcodegen.last_pos(), &paths, false);
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for (const auto& path : paths) {
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gcode += gcodegen.extrude(*path, "support material", obj.config.get_abs_value("support_material_speed"));
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}
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}
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}
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// We now define a strategy for building perimeters and fills. The separation
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// between regions doesn't matter in terms of printing order, as we follow
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// another logic instead:
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// - we group all extrusions by extruder so that we minimize toolchanges
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// - we start from the last used extruder
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// - for each extruder, we group extrusions by island
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// - for each island, we extrude perimeters first, unless user set the infill_first
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// option
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// (Still, we have to keep track of regions because we need to apply their config)
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// group extrusions by extruder and then by island
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std::map<size_t,std::tuple<ExtrusionEntityCollection, ExtrusionEntityCollection> > by_extruder; // extruder_id => [ { perimeters => \@perimeters, infill => \@infill } ]
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// cache bounding boxes of layer slices
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std::vector<BoundingBox> layer_slices_bb;
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std::transform(layer->slices.cbegin(), layer->slices.cend(), std::back_inserter(layer_slices_bb), [] (const ExPolygon& s)-> BoundingBox { return s.bounding_box(); });
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auto point_inside_surface { [&layer_slices_bb, &layer] (size_t i, Point& point) -> bool {
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const auto& bbox {layer_slices_bb.at(i)};
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return bbox.contains(point) && layer->slices.at(i).contour.contains(point);
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}};
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const auto n_slices {layer->slices.size() - 1};
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for (auto region_id = 0U; region_id < print.regions.size(); ++region_id) {
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}
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}
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/*
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my $copy_idx = 0;
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for my $copy (@$object_copies) {
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my $n_slices = $layer->slices->count - 1;
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foreach my $region_id (0..($self->print->region_count-1)) {
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my $layerm = $layer->regions->[$region_id] or next;
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my $region = $self->print->get_region($region_id);
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# process perimeters
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{
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my $extruder_id = $region->config->perimeter_extruder-1;
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foreach my $perimeter_coll (@{$layerm->perimeters}) {
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next if $perimeter_coll->empty; # this shouldn't happen but first_point() would fail
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# init by_extruder item only if we actually use the extruder
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$by_extruder{$extruder_id} //= [];
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# $perimeter_coll is an ExtrusionPath::Collection object representing a single slice
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for my $i (0 .. $n_slices) {
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if (
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# $perimeter_coll->first_point does not fit inside any slice
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$i == $n_slices
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# $perimeter_coll->first_point fits inside ith slice
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|| $point_inside_surface->($i, $perimeter_coll->first_point)) {
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$by_extruder{$extruder_id}[$i] //= { perimeters => {} };
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$by_extruder{$extruder_id}[$i]{perimeters}{$region_id} //= [];
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push @{ $by_extruder{$extruder_id}[$i]{perimeters}{$region_id} }, @$perimeter_coll;
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last;
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}
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}
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}
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}
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# process infill
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# $layerm->fills is a collection of ExtrusionPath::Collection objects, each one containing
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# the ExtrusionPath objects of a certain infill "group" (also called "surface"
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# throughout the code). We can redefine the order of such Collections but we have to
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# do each one completely at once.
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foreach my $fill (@{$layerm->fills}) {
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next if $fill->empty; # this shouldn't happen but first_point() would fail
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# init by_extruder item only if we actually use the extruder
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my $extruder_id = $fill->[0]->is_solid_infill
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? $region->config->solid_infill_extruder-1
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: $region->config->infill_extruder-1;
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$by_extruder{$extruder_id} //= [];
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# $fill is an ExtrusionPath::Collection object
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for my $i (0 .. $n_slices) {
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if ($i == $n_slices
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|| $point_inside_surface->($i, $fill->first_point)) {
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$by_extruder{$extruder_id}[$i] //= { infill => {} };
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$by_extruder{$extruder_id}[$i]{infill}{$region_id} //= [];
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push @{ $by_extruder{$extruder_id}[$i]{infill}{$region_id} }, $fill;
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last;
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}
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}
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}
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}
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# tweak extruder ordering to save toolchanges
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my @extruders = sort { $a <=> $b } keys %by_extruder;
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if (@extruders > 1) {
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my $last_extruder_id = $self->_gcodegen.writer->extruder->id;
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if (exists $by_extruder{$last_extruder_id}) {
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@extruders = (
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$last_extruder_id,
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grep $_ != $last_extruder_id, @extruders,
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);
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}
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}
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foreach my $extruder_id (@extruders) {
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$gcode .= $self->_gcodegen.set_extruder($extruder_id);
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foreach my $island (@{ $by_extruder{$extruder_id} }) {
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if ($self->print->config->infill_first) {
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$gcode .= $self->_extrude_infill($island->{infill} // {});
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$gcode .= $self->_extrude_perimeters($island->{perimeters} // {});
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} else {
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$gcode .= $self->_extrude_perimeters($island->{perimeters} // {});
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$gcode .= $self->_extrude_infill($island->{infill} // {});
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}
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}
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}
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if ($self->config->label_printed_objects) {
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$gcode .= "; stop printing object " . $object->model_object()->name . " id:" . $obj_idx . " copy " . $copy_idx . "\n";
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}
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$copy_idx = $copy_idx + 1;
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}
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*/
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// write the resulting gcode
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// write the resulting gcode
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fh << this->filter(gcode);
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fh << this->filter(gcode);
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