3D-printing/OrcaSlicer
1
0
Fork 0
mirror of https://github.com/SoftFever/OrcaSlicer.git synced 2025-07-08 07:27:41 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

ENH: optimize the efficiency of auto lift

Browse source 
Signed-off-by: qing.zhang <qing.zhang@bambulab.com>
Change-Id: I9c1679cc80ae23ff066df6e2fe98b5530a9d2288
This commit is contained in:
qing.zhang 2023-05-12 17:23:27 +08:00 • committed by Lane.Wei
parent 1b0b14c0f2
commit 1d0476fa44
7 changed files with 70 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

58
src/libslic3r/GCode.cpp
View file

@ -4006,27 +4006,47 @@ bool GCode::needs_retraction(const Polyline &travel, ExtrusionRole role, LiftTyp
std::pair<float, float> z_range;
z_range.second = m_layer ? m_layer->print_z : 0.f;
z_range.first = std::max(0.f, z_range.second - protect_z_scaled);
for (auto object : m_curr_print->objects()) {
BoundingBox obj_bbox = object->bounding_box();
std::vector<LayerPtrs> layers_of_objects;
std::vector<BoundingBox> boundingBox_for_objects;
std::vector<size_t> idx_of_object_sorted = m_curr_print->layers_sorted_for_object(z_range.first, z_range.second, layers_of_objects, boundingBox_for_objects);
for (size_t i = 0; i < idx_of_object_sorted.size();i++) {
size_t idx = idx_of_object_sorted[i];
BoundingBox obj_bbox = boundingBox_for_objects[idx];
BoundingBox travel_bbox = get_extents(travel);
obj_bbox.offset(scale_(EPSILON));
if (!obj_bbox.overlap(travel_bbox))
continue;
for (auto layer : object->layers()) {
if (layer->print_z < z_range.first)
continue;
Polygon object_box;
Polygons temp;
object_box.points.push_back(Point(obj_bbox.min(0), obj_bbox.min(1)));
object_box.points.push_back(Point(obj_bbox.max(0), obj_bbox.min(1)));
object_box.points.push_back(Point(obj_bbox.max(0), obj_bbox.max(1)));
object_box.points.push_back(Point(obj_bbox.min(0), obj_bbox.max(1)));
temp.push_back(object_box);
if (intersection_pl(travel, temp).empty())
continue;
if (layer->print_z > z_range.second + EPSILON)
break;
std::sort(layers_of_objects[idx].begin(), layers_of_objects[idx].end(), [](auto left, auto right) { return left->loverhangs_bbox.area() > right->loverhangs_bbox.area();
});
for (ExPolygon& overhang : layer->loverhangs) {
if (overhang.contains(travel))
return true;
for (const auto &layer : layers_of_objects[idx]) {
for (const ExPolygon &overhang : layer->loverhangs) {
BoundingBox bbox1 = get_extents(overhang);
travel_bbox.inflated(1);
if (!bbox1.overlap(travel_bbox))
continue;
if (intersection_pl(travel, overhang).empty())
continue;
return true;
}
}
}
return false;
};
@ -4034,19 +4054,13 @@ bool GCode::needs_retraction(const Polyline &travel, ExtrusionRole role, LiftTyp
for (int i = 0; i < m_config.z_hop.size(); i++)
max_z_hop = std::max(max_z_hop, (float)m_config.z_hop.get_at(i));
float travel_len_thresh = max_z_hop / tan(GCodeWriter::slope_threshold);
float accum_len = 0.f;
Polyline clipped_travel;
for (auto line : travel.lines()) {
if (accum_len + line.length() > travel_len_thresh + EPSILON) {
Point end_pnt = line.a + line.normal() * (travel_len_thresh - accum_len);
clipped_travel.append(Polyline(line.a, end_pnt));
break;
}
else {
clipped_travel.append(Polyline(line.a, line.b));
accum_len += line.length();
}
}
clipped_travel.append(Polyline(travel.points[0], travel.points[1]));
if (clipped_travel.length() > travel_len_thresh)
clipped_travel.points.back() = clipped_travel.points.front()+(clipped_travel.points.back() - clipped_travel.points.front()) * (travel_len_thresh / clipped_travel.length());
//BBS: force to retract when leave from external perimeter for a long travel
//Better way is judging whether the travel move direction is same with last extrusion move.