mozhe
/
BambuStudio
5
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ENH: improve hybrid tree support 

1. keep all polygon nodes in drop_nodes
2. prevent generating too small polygon nodes

jira: STUDIO-8107
Change-Id: I1311158ab15097eb10727a8d6884b0bcd8136ef1
This commit is contained in:
Arthur 2024-09-11 17:13:03 +08:00 committed by Lane.Wei
parent 1fa7359913
commit 038b92a536
1 changed files with 18 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
src/libslic3r/Support/TreeSupport.cpp
View File

@ -2754,21 +2754,12 @@ void TreeSupport::drop_nodes()
const bool to_buildplate = true;
// keep only the part that won't be removed by the next layer
ExPolygons overhangs_next = diff_clipped({ node.overhang }, get_collision(0, obj_layer_nr_next));
// find the biggest overhang if there are many
float area_biggest = -1;
int index_biggest = -1;
for (int i = 0; i < overhangs_next.size(); i++) {
float a=area(overhangs_next[i]);
if (a > area_biggest) {
area_biggest = a;
index_biggest = i;
}
}
if (index_biggest >= 0) {
SupportNode* next_node = m_ts_data->create_node(p_node->position, p_node->distance_to_top + 1, obj_layer_nr_next, p_node->support_roof_layers_below - 1, to_buildplate,
p_node, print_z_next, height_next);
for(auto& overhang:overhangs_next) {
Point next_pt = overhang.contour.centroid();
SupportNode *next_node = m_ts_data->create_node(next_pt, p_node->distance_to_top + 1, obj_layer_nr_next, p_node->support_roof_layers_below - 1,
to_buildplate, p_node, print_z_next, height_next);
next_node->max_move_dist = 0;
next_node->overhang = std::move(overhangs_next[index_biggest]);
next_node->overhang = std::move(overhang);
m_ts_data->m_mutex.lock();
contact_nodes[layer_nr_next].emplace_back(next_node);
m_ts_data->m_mutex.unlock();
@ -3432,15 +3423,20 @@ void TreeSupport::generate_contact_points()
ExPolygons overhangs_regular;
if (support_style == smsTreeHybrid && overhang_part.area() > m_support_params.thresh_big_overhang && !is_sharp_tail) {
overhangs_regular = offset_ex(intersection_ex({overhang_part}, m_ts_data->m_layer_outlines_below[layer_nr - 1]), radius_scaled);
overhangs_regular = diff_ex(overhangs_regular, relevant_forbidden);
ExPolygons overhangs_normal = diff_ex({overhang_part}, overhangs_regular);
for(auto& overhang:overhangs_normal) {
BoundingBox overhang_bounds = get_extents(overhang);
double radius = unscale_(overhang_bounds.radius());
Point candidate = overhang_bounds.center();
SupportNode *contact_node = insert_point(candidate, overhang, radius, true, true);
contact_node->type = ePolygon;
curr_nodes.emplace_back(contact_node);
if (area(overhangs_normal) > m_support_params.thresh_big_overhang) {
// if the outside area is still big, we can need normal nodes
for (auto &overhang : overhangs_normal) {
BoundingBox overhang_bounds = get_extents(overhang);
double radius = unscale_(overhang_bounds.radius());
Point candidate = overhang_bounds.center();
SupportNode *contact_node = insert_point(candidate, overhang, radius, true, true);
contact_node->type = ePolygon;
curr_nodes.emplace_back(contact_node);
}
}else{
// otherwise, all nodes should be circle nodes
overhangs_regular = ExPolygons{overhang_part};
}
} else {
overhangs_regular = ExPolygons{overhang_part};