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ENH: sync with master on sharp tail and cantilever detection

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Change-Id: Id514d47d868fd02a8ac02ef85ef33ef48a2bd7c7
This commit is contained in:
Arthur 2022-12-08 15:11:39 +08:00 • committed by Lane.Wei
parent 967909937d
commit 4bab300e18
2 changed files with 22 additions and 8 deletions
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16
src/libslic3r/TreeSupport.cpp
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@ -844,9 +844,13 @@ void TreeSupport::detect_object_overhangs()
if (layer->lower_layer == nullptr) {
for (auto& slice : layer->lslices) {
auto bbox_size = get_extents(slice).size();
if (slice.area() > area_thresh_well_supported
|| (bbox_size.x()>length_thresh_well_supported && bbox_size.y()>length_thresh_well_supported))
if (/*slice.area() > area_thresh_well_supported || */
(bbox_size.x()>length_thresh_well_supported && bbox_size.y()>length_thresh_well_supported))
regions_well_supported.emplace_back(slice);
else if(g_config_support_sharp_tails){
layer->sharp_tails.push_back(slice);
layer->sharp_tails_height.insert({ &slice, layer->height });
}
}
continue;
}
@ -932,12 +936,13 @@ void TreeSupport::detect_object_overhangs()
// 2.2 If sharp tail below, check whether it support this region enough.
float supported_area = area(supported_by_lower);
BoundingBox bbox = get_extents(supported_by_lower);
#if 0
// judge by area isn't reliable, failure cases include 45 degree rotated cube
if (supported_area > area_thresh_well_supported) {
is_sharp_tail = false;
break;
}
#endif
if (bbox.size().x() > length_thresh_well_supported && bbox.size().y() > length_thresh_well_supported) {
is_sharp_tail = false;
break;
@ -950,7 +955,6 @@ void TreeSupport::detect_object_overhangs()
break;
}
}
if (accum_height >= sharp_tail_max_support_height) {
is_sharp_tail = false;
break;
@ -1061,7 +1065,7 @@ void TreeSupport::detect_object_overhangs()
}
dist_max = std::max(dist_max, dist_pt);
}
if (dist_max > scale_(5)) { // this cluster is cantilever, add all expolygons to sharp tail
if (dist_max > scale_(3)) { // this cluster is cantilever if the farmost point is larger than 3mm away from base
for (auto it = cluster.layer_overhangs.begin(); it != cluster.layer_overhangs.end(); it++) {
int layer_nr = it->first;
auto p_overhang = it->second;