3DPrinting/PrusaSlicer-NonPlainar
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Merge branch 'master' into lm_low_wipe_tower

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This commit is contained in:
Lukas Matena 2019-10-01 13:24:25 +02:00
commit 61cee54dd3
92 changed files with 1767 additions and 1029 deletions
src/libslic3r
GCode.cpp

182
src/libslic3r/GCode.cpp
View file

@ -6,6 +6,7 @@
#include "Geometry.hpp"
#include "GCode/PrintExtents.hpp"
#include "GCode/WipeTower.hpp"
#include "ShortestPath.hpp"
#include "Utils.hpp"
#include <algorithm>
@ -691,7 +692,7 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
if (print->is_step_done(psGCodeExport) && boost::filesystem::exists(boost::filesystem::path(path)))
return;
print->set_started(psGCodeExport);
print->set_started(psGCodeExport);
BOOST_LOG_TRIVIAL(info) << "Exporting G-code..." << log_memory_info();
@ -1192,7 +1193,7 @@ void GCode::_do_export(Print &print, FILE *file)
for (const LayerToPrint &ltp : layers_to_print) {
std::vector<LayerToPrint> lrs;
lrs.emplace_back(std::move(ltp));
this->process_layer(file, print, lrs, tool_ordering.tools_for_layer(ltp.print_z()), &copy - object.copies().data());
this->process_layer(file, print, lrs, tool_ordering.tools_for_layer(ltp.print_z()), nullptr, &copy - object.copies().data());
print.throw_if_canceled();
}
#ifdef HAS_PRESSURE_EQUALIZER
@ -1206,12 +1207,8 @@ void GCode::_do_export(Print &print, FILE *file)
}
}
} else {
// Order objects using a nearest neighbor search.
std::vector<size_t> object_indices;
Points object_reference_points;
for (PrintObject *object : print.objects())
object_reference_points.push_back(object->copies().front());
Slic3r::Geometry::chained_path(object_reference_points, object_indices);
// Order object instances using a nearest neighbor search.
std::vector<std::pair<size_t, size_t>> print_object_instances_ordering = chain_print_object_instances(print);
// Sort layers by Z.
// All extrusion moves with the same top layer height are extruded uninterrupted.
std::vector<std::pair<coordf_t, std::vector<LayerToPrint>>> layers_to_print = collect_layers_to_print(print);
@ -1250,7 +1247,7 @@ void GCode::_do_export(Print &print, FILE *file)
const LayerTools &layer_tools = tool_ordering.tools_for_layer(layer.first);
if (m_wipe_tower && layer_tools.has_wipe_tower)
m_wipe_tower->next_layer();
this->process_layer(file, print, layer.second, layer_tools, size_t(-1));
this->process_layer(file, print, layer.second, layer_tools, &print_object_instances_ordering, size_t(-1));
print.throw_if_canceled();
}
#ifdef HAS_PRESSURE_EQUALIZER
@ -1447,7 +1444,7 @@ static bool custom_gcode_sets_temperature(const std::string &gcode, const int mc
// Skip the rest of the line.
for (; *ptr != 0 && *ptr != '\r' && *ptr != '\n'; ++ ptr);
// Skip the end of line indicators.
for (; *ptr == '\r' || *ptr == '\n'; ++ ptr);
for (; *ptr == '\r' || *ptr == '\n'; ++ ptr);
}
return temp_set_by_gcode;
}
@ -1561,8 +1558,54 @@ inline std::vector<GCode::ObjectByExtruder::Island>& object_islands_by_extruder(
return islands;
}
std::vector<GCode::InstanceToPrint> GCode::sort_print_object_instances(
std::vector<GCode::ObjectByExtruder> &objects_by_extruder,
const std::vector<LayerToPrint> &layers,
// Ordering must be defined for normal (non-sequential print).
const std::vector<std::pair<size_t, size_t>> *ordering,
// For sequential print, the instance of the object to be printing has to be defined.
const size_t single_object_instance_idx)
{
std::vector<InstanceToPrint> out;
if (ordering == nullptr) {
// Sequential print, single object is being printed.
for (ObjectByExtruder &object_by_extruder : objects_by_extruder) {
const size_t layer_id = &object_by_extruder - objects_by_extruder.data();
const PrintObject *print_object = layers[layer_id].object();
if (print_object)
out.emplace_back(object_by_extruder, layer_id, *print_object, single_object_instance_idx);
}
} else {
// Create mapping from PrintObject* to ObjectByExtruder*.
std::vector<std::pair<const PrintObject*, ObjectByExtruder*>> sorted;
sorted.reserve(objects_by_extruder.size());
for (ObjectByExtruder &object_by_extruder : objects_by_extruder) {
const size_t layer_id = &object_by_extruder - objects_by_extruder.data();
const PrintObject *print_object = layers[layer_id].object();
if (print_object)
sorted.emplace_back(print_object, &object_by_extruder);
}
std::sort(sorted.begin(), sorted.end());
if (! sorted.empty()) {
const Print &print = *sorted.front().first->print();
out.reserve(sorted.size());
for (const std::pair<size_t, size_t> &instance_id : *ordering) {
const PrintObject &print_object = *print.objects()[instance_id.first];
std::pair<const PrintObject*, ObjectByExtruder*> key(&print_object, nullptr);
auto it = std::lower_bound(sorted.begin(), sorted.end(), key);
if (it != sorted.end() && it->first == &print_object)
// ObjectByExtruder for this PrintObject was found.
out.emplace_back(*it->second, it->second - objects_by_extruder.data(), print_object, instance_id.second);
}
}
}
return out;
}
// In sequential mode, process_layer is called once per each object and its copy,
// therefore layers will contain a single entry and single_object_idx will point to the copy of the object.
// therefore layers will contain a single entry and single_object_instance_idx will point to the copy of the object.
// In non-sequential mode, process_layer is called per each print_z height with all object and support layers accumulated.
// For multi-material prints, this routine minimizes extruder switches by gathering extruder specific extrusion paths
// and performing the extruder specific extrusions together.
@ -1573,14 +1616,16 @@ void GCode::process_layer(
// Set of object & print layers of the same PrintObject and with the same print_z.
const std::vector<LayerToPrint> &layers,
const LayerTools &layer_tools,
// Pairs of PrintObject index and its instance index.
const std::vector<std::pair<size_t, size_t>> *ordering,
// If set to size_t(-1), then print all copies of all objects.
// Otherwise print a single copy of a single object.
const size_t single_object_idx)
const size_t single_object_instance_idx)
{
assert(! layers.empty());
// assert(! layer_tools.extruders.empty());
// Either printing all copies of all objects, or just a single copy of a single object.
assert(single_object_idx == size_t(-1) || layers.size() == 1);
assert(single_object_instance_idx == size_t(-1) || layers.size() == 1);
if (layer_tools.extruders.empty())
// Nothing to extrude.
@ -1794,6 +1839,17 @@ void GCode::process_layer(
layer_surface_bboxes.reserve(n_slices);
for (const ExPolygon &expoly : layer.slices.expolygons)
layer_surface_bboxes.push_back(get_extents(expoly.contour));
// Traverse the slices in an increasing order of bounding box size, so that the islands inside another islands are tested first,
// so we can just test a point inside ExPolygon::contour and we may skip testing the holes.
std::vector<size_t> slices_test_order;
slices_test_order.reserve(n_slices);
for (size_t i = 0; i < n_slices; ++ i)
slices_test_order.emplace_back(i);
std::sort(slices_test_order.begin(), slices_test_order.end(), [&layer_surface_bboxes](int i, int j) {
const Vec2d s1 = layer_surface_bboxes[i].size().cast<double>();
const Vec2d s2 = layer_surface_bboxes[j].size().cast<double>();
return s1.x() * s1.y() < s2.x() * s2.y();
});
auto point_inside_surface = [&layer, &layer_surface_bboxes](const size_t i, const Point &point) {
const BoundingBox &bbox = layer_surface_bboxes[i];
return point(0) >= bbox.min(0) && point(0) < bbox.max(0) &&
@ -1841,16 +1897,19 @@ void GCode::process_layer(
extruder,
&layer_to_print - layers.data(),
layers.size(), n_slices+1);
for (size_t i = 0; i <= n_slices; ++i)
for (size_t i = 0; i <= n_slices; ++ i) {
bool last = i == n_slices;
size_t island_idx = last ? n_slices : slices_test_order[i];
if (// fill->first_point does not fit inside any slice
i == n_slices ||
last ||
// fill->first_point fits inside ith slice
point_inside_surface(i, fill->first_point())) {
if (islands[i].by_region.empty())
islands[i].by_region.assign(print.regions().size(), ObjectByExtruder::Island::Region());
islands[i].by_region[region_id].append(entity_type, fill, entity_overrides, layer_to_print.object()->copies().size());
point_inside_surface(island_idx, fill->first_point())) {
if (islands[island_idx].by_region.empty())
islands[island_idx].by_region.assign(print.regions().size(), ObjectByExtruder::Island::Region());
islands[island_idx].by_region[region_id].append(entity_type, fill, entity_overrides, layer_to_print.object()->copies().size());
break;
}
}
}
}
}
@ -1915,62 +1974,49 @@ void GCode::process_layer(
if (objects_by_extruder_it == by_extruder.end())
continue;
std::vector<InstanceToPrint> instances_to_print = sort_print_object_instances(objects_by_extruder_it->second, layers, ordering, single_object_instance_idx);
// We are almost ready to print. However, we must go through all the objects twice to print the the overridden extrusions first (infill/perimeter wiping feature):
bool is_anything_overridden = const_cast<LayerTools&>(layer_tools).wiping_extrusions().is_anything_overridden();
for (int print_wipe_extrusions = is_anything_overridden; print_wipe_extrusions>=0; --print_wipe_extrusions) {
if (is_anything_overridden && print_wipe_extrusions == 0)
gcode+="; PURGING FINISHED\n";
for (ObjectByExtruder &object_by_extruder : objects_by_extruder_it->second) {
const size_t layer_id = &object_by_extruder - objects_by_extruder_it->second.data();
const PrintObject *print_object = layers[layer_id].object();
if (print_object == nullptr)
// This layer is empty for this particular object, it has neither object extrusions nor support extrusions at this print_z.
continue;
m_config.apply(print_object->config(), true);
m_layer = layers[layer_id].layer();
for (InstanceToPrint &instance_to_print : instances_to_print) {
m_config.apply(instance_to_print.print_object.config(), true);
m_layer = layers[instance_to_print.layer_id].layer();
if (m_config.avoid_crossing_perimeters)
m_avoid_crossing_perimeters.init_layer_mp(union_ex(m_layer->slices, true));
Points copies;
if (single_object_idx == size_t(-1))
copies = print_object->copies();
else
copies.push_back(print_object->copies()[single_object_idx]);
// Sort the copies by the closest point starting with the current print position.
unsigned int copy_id = 0;
for (const Point &copy : copies) {
if (this->config().gcode_label_objects)
gcode += std::string("; printing object ") + print_object->model_object()->name + " id:" + std::to_string(layer_id) + " copy " + std::to_string(copy_id) + "\n";
// When starting a new object, use the external motion planner for the first travel move.
std::pair<const PrintObject*, Point> this_object_copy(print_object, copy);
if (m_last_obj_copy != this_object_copy)
m_avoid_crossing_perimeters.use_external_mp_once = true;
m_last_obj_copy = this_object_copy;
this->set_origin(unscale(copy));
if (object_by_extruder.support != nullptr && !print_wipe_extrusions) {
m_layer = layers[layer_id].support_layer;
gcode += this->extrude_support(
// support_extrusion_role is erSupportMaterial, erSupportMaterialInterface or erMixed for all extrusion paths.
object_by_extruder.support->chained_path_from(m_last_pos, false, object_by_extruder.support_extrusion_role));
m_layer = layers[layer_id].layer();
}
for (ObjectByExtruder::Island &island : object_by_extruder.islands) {
const auto& by_region_specific = is_anything_overridden ? island.by_region_per_copy(copy_id, extruder_id, print_wipe_extrusions) : island.by_region;
if (print.config().infill_first) {
gcode += this->extrude_infill(print, by_region_specific);
gcode += this->extrude_perimeters(print, by_region_specific, lower_layer_edge_grids[layer_id]);
} else {
gcode += this->extrude_perimeters(print, by_region_specific, lower_layer_edge_grids[layer_id]);
gcode += this->extrude_infill(print,by_region_specific);
}
}
if (this->config().gcode_label_objects)
gcode += std::string("; stop printing object ") + print_object->model_object()->name + " id:" + std::to_string(layer_id) + " copy " + std::to_string(copy_id) + "\n";
++ copy_id;
if (this->config().gcode_label_objects)
gcode += std::string("; printing object ") + instance_to_print.print_object.model_object()->name + " id:" + std::to_string(instance_to_print.layer_id) + " copy " + std::to_string(instance_to_print.instance_id) + "\n";
// When starting a new object, use the external motion planner for the first travel move.
const Point &offset = instance_to_print.print_object.copies()[instance_to_print.instance_id];
std::pair<const PrintObject*, Point> this_object_copy(&instance_to_print.print_object, offset);
if (m_last_obj_copy != this_object_copy)
m_avoid_crossing_perimeters.use_external_mp_once = true;
m_last_obj_copy = this_object_copy;
this->set_origin(unscale(offset));
if (instance_to_print.object_by_extruder.support != nullptr && !print_wipe_extrusions) {
m_layer = layers[instance_to_print.layer_id].support_layer;
gcode += this->extrude_support(
// support_extrusion_role is erSupportMaterial, erSupportMaterialInterface or erMixed for all extrusion paths.
instance_to_print.object_by_extruder.support->chained_path_from(m_last_pos, instance_to_print.object_by_extruder.support_extrusion_role));
m_layer = layers[instance_to_print.layer_id].layer();
}
for (ObjectByExtruder::Island &island : instance_to_print.object_by_extruder.islands) {
const auto& by_region_specific = is_anything_overridden ? island.by_region_per_copy(instance_to_print.instance_id, extruder_id, print_wipe_extrusions) : island.by_region;
if (print.config().infill_first) {
gcode += this->extrude_infill(print, by_region_specific);
gcode += this->extrude_perimeters(print, by_region_specific, lower_layer_edge_grids[instance_to_print.layer_id]);
} else {
gcode += this->extrude_perimeters(print, by_region_specific, lower_layer_edge_grids[instance_to_print.layer_id]);
gcode += this->extrude_infill(print,by_region_specific);
}
}
if (this->config().gcode_label_objects)
gcode += std::string("; stop printing object ") + instance_to_print.print_object.model_object()->name + " id:" + std::to_string(instance_to_print.layer_id) + " copy " + std::to_string(instance_to_print.instance_id) + "\n";
}
}
}
@ -2574,12 +2620,10 @@ std::string GCode::extrude_infill(const Print &print, const std::vector<ObjectBy
std::string gcode;
for (const ObjectByExtruder::Island::Region &region : by_region) {
m_config.apply(print.regions()[&region - &by_region.front()]->config());
ExtrusionEntityCollection chained = region.infills.chained_path_from(m_last_pos, false);
for (ExtrusionEntity *fill : chained.entities) {
for (ExtrusionEntity *fill : region.infills.chained_path_from(m_last_pos).entities) {
auto *eec = dynamic_cast<ExtrusionEntityCollection*>(fill);
if (eec) {
ExtrusionEntityCollection chained2 = eec->chained_path_from(m_last_pos, false);
for (ExtrusionEntity *ee : chained2.entities)
for (ExtrusionEntity *ee : eec->chained_path_from(m_last_pos).entities)
gcode += this->extrude_entity(*ee, "infill");
} else
gcode += this->extrude_entity(*fill, "infill");