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Finish up process_layer

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This commit is contained in:
Benjamin Landers 2018-07-24 02:04:29 -07:00
parent 0d1f5ec57c
commit fd1a4c396f
3 changed files with 102 additions and 76 deletions
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3
xs/src/libslic3r/ExtrusionEntity.hpp
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@ -52,6 +52,9 @@ public:
virtual double min_mm3_per_mm() const = 0;
virtual Polyline as_polyline() const = 0;
virtual double length() const { return 0; };
virtual bool is_perimeter() const {return false;};
virtual bool is_infill() const {return false;};
virtual bool is_solid_infill() const {return false;};
};
typedef std::vector<ExtrusionEntity*> ExtrusionEntitiesPtr;

171
xs/src/libslic3r/PrintGCode.cpp
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@ -492,118 +492,137 @@ PrintGCode::process_layer(size_t idx, const Layer* layer, const Points& copies)
// (Still, we have to keep track of regions because we need to apply their config)
// group extrusions by extruder and then by island
std::map<size_t,std::tuple<ExtrusionEntityCollection, ExtrusionEntityCollection> > by_extruder; // extruder_id => [ { perimeters => \@perimeters, infill => \@infill } ]
// extruder island
std::map<size_t,std::map<size_t,
// region
std::tuple<std::map<size_t,ExtrusionEntityCollection>, // perimeters
std::map<size_t,ExtrusionEntityCollection>> // infill
>> by_extruder;
// cache bounding boxes of layer slices
std::vector<BoundingBox> layer_slices_bb;
std::transform(layer->slices.cbegin(), layer->slices.cend(), std::back_inserter(layer_slices_bb), [] (const ExPolygon& s)-> BoundingBox { return s.bounding_box(); });
auto point_inside_surface { [&layer_slices_bb, &layer] (size_t i, Point& point) -> bool {
auto point_inside_surface { [&layer_slices_bb, &layer] (size_t i, Point point) -> bool {
const auto& bbox {layer_slices_bb.at(i)};
return bbox.contains(point) && layer->slices.at(i).contour.contains(point);
}};
const auto n_slices {layer->slices.size()};
for (auto region_id = 0U; region_id < print.regions.size(); ++region_id) {
}
}
/*
my $copy_idx = 0;
for my $copy (@$object_copies) {
my $n_slices = $layer->slices->count - 1;
foreach my $region_id (0..($self->print->region_count-1)) {
my $layerm = $layer->regions->[$region_id] or next;
my $region = $self->print->get_region($region_id);
auto* layerm = layer->get_region(region_id); //or next; TODO: handle error case
auto* region = print.get_region(region_id);
# process perimeters
// process perimeters
{
my $extruder_id = $region->config->perimeter_extruder-1;
foreach my $perimeter_coll (@{$layerm->perimeters}) {
next if $perimeter_coll->empty; # this shouldn't happen but first_point() would fail
auto extruder_id = region->config.perimeter_extruder-1;
// Casting away const just to avoid double dereferences
for(auto* perimeter_coll : const_cast<LayerRegion*>(layerm)->perimeters) {
if(perimeter_coll->length() == 0) continue; // this shouldn't happen but first_point() would fail
# init by_extruder item only if we actually use the extruder
$by_extruder{$extruder_id} //= [];
# $perimeter_coll is an ExtrusionPath::Collection object representing a single slice
for my $i (0 .. $n_slices) {
if (
# $perimeter_coll->first_point does not fit inside any slice
$i == $n_slices
# $perimeter_coll->first_point fits inside ith slice
|| $point_inside_surface->($i, $perimeter_coll->first_point)) {
$by_extruder{$extruder_id}[$i] //= { perimeters => {} };
$by_extruder{$extruder_id}[$i]{perimeters}{$region_id} //= [];
push @{ $by_extruder{$extruder_id}[$i]{perimeters}{$region_id} }, @$perimeter_coll;
last;
// perimeter_coll is an ExtrusionPath::Collection object representing a single slice
for(auto i = 0U; i < n_slices; i++){
if (// perimeter_coll->first_point does not fit inside any slice
i == n_slices - 1
// perimeter_coll->first_point fits inside ith slice
|| point_inside_surface(i, perimeter_coll->first_point())) {
std::get<0>(by_extruder[extruder_id][i])[region_id].append(*perimeter_coll);
break;
}
}
}
}
# process infill
# $layerm->fills is a collection of ExtrusionPath::Collection objects, each one containing
# the ExtrusionPath objects of a certain infill "group" (also called "surface"
# throughout the code). We can redefine the order of such Collections but we have to
# do each one completely at once.
foreach my $fill (@{$layerm->fills}) {
next if $fill->empty; # this shouldn't happen but first_point() would fail
// process infill
// $layerm->fills is a collection of ExtrusionPath::Collection objects, each one containing
// the ExtrusionPath objects of a certain infill "group" (also called "surface"
// throughout the code). We can redefine the order of such Collections but we have to
// do each one completely at once.
for(auto* fill : const_cast<LayerRegion*>(layerm)->fills) {
if(fill->length() == 0) continue; // this shouldn't happen but first_point() would fail
# init by_extruder item only if we actually use the extruder
my $extruder_id = $fill->[0]->is_solid_infill
? $region->config->solid_infill_extruder-1
: $region->config->infill_extruder-1;
auto extruder_id = fill->is_solid_infill()
? region->config.solid_infill_extruder-1
: region->config.infill_extruder-1;
$by_extruder{$extruder_id} //= [];
# $fill is an ExtrusionPath::Collection object
for my $i (0 .. $n_slices) {
if ($i == $n_slices
|| $point_inside_surface->($i, $fill->first_point)) {
$by_extruder{$extruder_id}[$i] //= { infill => {} };
$by_extruder{$extruder_id}[$i]{infill}{$region_id} //= [];
push @{ $by_extruder{$extruder_id}[$i]{infill}{$region_id} }, $fill;
last;
// $fill is an ExtrusionPath::Collection object
for(auto i = 0U; i < n_slices; i++){
if (i == n_slices - 1
|| point_inside_surface(i, fill->first_point())) {
std::get<1>(by_extruder[extruder_id][i])[region_id].append(*fill);
break;
}
}
}
}
# tweak extruder ordering to save toolchanges
my @extruders = sort { $a <=> $b } keys %by_extruder;
if (@extruders > 1) {
my $last_extruder_id = $self->_gcodegen.writer->extruder->id;
if (exists $by_extruder{$last_extruder_id}) {
@extruders = (
$last_extruder_id,
grep $_ != $last_extruder_id, @extruders,
);
}
}
// tweak extruder ordering to save toolchanges
foreach my $extruder_id (@extruders) {
$gcode .= $self->_gcodegen.set_extruder($extruder_id);
foreach my $island (@{ $by_extruder{$extruder_id} }) {
if ($self->print->config->infill_first) {
$gcode .= $self->_extrude_infill($island->{infill} // {});
$gcode .= $self->_extrude_perimeters($island->{perimeters} // {});
auto last_extruder = gcodegen.writer.extruder()->id;
if (by_extruder.count(last_extruder)) {
for(auto &island : by_extruder[last_extruder]) {
if (print.config.infill_first()) {
gcode += this->_extrude_infill(std::get<1>(island.second));
gcode += this->_extrude_perimeters(std::get<0>(island.second));
} else {
$gcode .= $self->_extrude_perimeters($island->{perimeters} // {});
$gcode .= $self->_extrude_infill($island->{infill} // {});
gcode += this->_extrude_perimeters(std::get<0>(island.second));
gcode += this->_extrude_infill(std::get<1>(island.second));
}
}
}
if ($self->config->label_printed_objects) {
$gcode .= "; stop printing object " . $object->model_object()->name . " id:" . $obj_idx . " copy " . $copy_idx . "\n";
for(auto &pair : by_extruder) {
if(pair.first == last_extruder)continue;
gcode += gcodegen.set_extruder(pair.first);
for(auto &island : pair.second) {
if (print.config.infill_first()) {
gcode += this->_extrude_infill(std::get<1>(island.second));
gcode += this->_extrude_perimeters(std::get<0>(island.second));
} else {
gcode += this->_extrude_perimeters(std::get<0>(island.second));
gcode += this->_extrude_infill(std::get<1>(island.second));
}
}
}
$copy_idx = $copy_idx + 1;
if (config.label_printed_objects) {
gcode += "; stop printing object " + obj.model_object().name + " id:" + std::to_string(idx) + " copy " + std::to_string(copy_idx) + "\n";
}
copy_idx++;
}
*/
// write the resulting gcode
fh << this->filter(gcode);
}
// Extrude perimeters: Decide where to put seams (hide or align seams).
std::string
PrintGCode::_extrude_perimeters(std::map<size_t,ExtrusionEntityCollection> &by_region)
{
std::string gcode = "";
for(auto& pair : by_region) {
this->_gcodegen.config.apply(this->_print.get_region(pair.first)->config);
for(auto& ee : pair.second){
gcode += this->_gcodegen.extrude(*ee, "perimeter");
}
}
return gcode;
}
// Chain the paths hierarchically by a greedy algorithm to minimize a travel distance.
std::string
PrintGCode::_extrude_infill(std::map<size_t,ExtrusionEntityCollection> &by_region)
{
std::string gcode = "";
for(auto& pair : by_region) {
this->_gcodegen.config.apply(this->_print.get_region(pair.first)->config);
ExtrusionEntityCollection tmp;
pair.second.chained_path_from(this->_gcodegen.last_pos(),&tmp);
for(auto& ee : tmp){
gcode += this->_gcodegen.extrude(*ee, "infill");
}
}
return gcode;
}
void
PrintGCode::_print_first_layer_temperature(bool wait)
{

4
xs/src/libslic3r/PrintGCode.hpp
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@ -61,7 +61,11 @@ private:
/// Utility function to print config options as gcode comments
void _print_config(const ConfigBase& config);
// Extrude perimeters: Decide where to put seams (hide or align seams).
std::string _extrude_perimeters(std::map<size_t,ExtrusionEntityCollection> &by_region);
// Chain the paths hierarchically by a greedy algorithm to minimize a travel distance.
std::string _extrude_infill(std::map<size_t,ExtrusionEntityCollection> &by_region);
};
} // namespace Slic3r