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FIX: do not merge overhangs when buildplate_only is on

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Jira: STUDIO-3024
Change-Id: I87f73a556945d1b1640c515336ca108f65b88bdf
(cherry picked from commit 1c09513324bb965647bbb157be1cacaf9371ce07)
This commit is contained in:
Arthur 2023-05-29 16:06:15 +08:00 • committed by Lane.Wei
parent 3ea602091e
commit 12d0a51362
1 changed files with 4 additions and 2 deletions
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6
src/libslic3r/TreeSupport.cpp
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@ -1142,7 +1142,7 @@ void TreeSupport::detect_overhangs(bool detect_first_sharp_tail_only)
#ifdef SUPPORT_TREE_DEBUG_TO_SVG
for (const SupportLayer* layer : m_object->support_layers()) {
if (layer->overhang_areas.empty() && blockers[layer->id()].empty())
if (layer->overhang_areas.empty() && (blockers.size()<=layer->id() || blockers[layer->id()].empty()))
continue;
SVG svg(format("SVG/overhang_areas_%s.svg", layer->print_z), m_object->bounding_box());
@ -1981,6 +1981,7 @@ void TreeSupport::draw_circles(const std::vector<std::vector<Node*>>& contact_no
int bottom_gap_layers = round(m_slicing_params.gap_object_support / m_slicing_params.layer_height);
const coordf_t branch_radius = config.tree_support_branch_diameter.value / 2;
const coordf_t branch_radius_scaled = scale_(branch_radius);
bool on_buildplate_only = config.support_on_build_plate_only.value;
Polygon branch_circle; //Pre-generate a circle with correct diameter so that we don't have to recompute those (co)sines every time.
// Use square support if there are too many nodes per layer because circle support needs much longer time to compute
@ -2113,7 +2114,8 @@ void TreeSupport::draw_circles(const std::vector<std::vector<Node*>>& contact_no
}
area.emplace_back(ExPolygon(circle));
// merge overhang to get a smoother interface surface
if (top_interface_layers > 0 && node.support_roof_layers_below > 0) {
// Do not merge when buildplate_only is on, because some underneath nodes may have been deleted.
if (top_interface_layers > 0 && node.support_roof_layers_below > 0 && !on_buildplate_only) {
ExPolygons overhang_expanded;
if (node.overhang->contour.size() > 100 || node.overhang->holes.size()>1)
overhang_expanded.emplace_back(*node.overhang);