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FIX: tree support has empty layers for some models

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Root cause:
support_floor_layers_above is not properly set,
so adjust_layer_height() fails to detect extremes,
and then deletes the middle layers.

Also reduce max_bridge_length to 10mm.

Jira: STUDIO-1084

Change-Id: I1e72a0600ec7e2b812705e45b47b76189152daac
This commit is contained in:
Arthur 2022-10-18 10:46:54 +08:00 • committed by Lane.Wei
parent 631897c0a6
commit 3fecdd6e7d
2 changed files with 14 additions and 12 deletions
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24
src/libslic3r/TreeSupport.cpp
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@ -1976,7 +1976,7 @@ void TreeSupport::draw_circles(const std::vector<std::vector<Node*>>& contact_no
const int CIRCLE_RESOLUTION = SQUARE_SUPPORT ? 4 : 100; // The number of vertices in each circle.
for (unsigned int i = 0; i < CIRCLE_RESOLUTION; i++)
for (int i = 0; i < CIRCLE_RESOLUTION; i++)
{
double angle;
if (SQUARE_SUPPORT)
@ -2043,6 +2043,7 @@ void TreeSupport::draw_circles(const std::vector<std::vector<Node*>>& contact_no
ExPolygons& roof_1st_layer = ts_layer->roof_1st_layer;
ExPolygons& floor_areas = ts_layer->floor_areas;
BOOST_LOG_TRIVIAL(debug) << "circles at layer " << layer_nr << " contact nodes size=" << contact_nodes[layer_nr].size();
//Draw the support areas and add the roofs appropriately to the support roof instead of normal areas.
ts_layer->lslices.reserve(contact_nodes[layer_nr].size());
for (const Node* p_node : contact_nodes[layer_nr])
@ -2288,7 +2289,8 @@ void TreeSupport::draw_circles(const std::vector<std::vector<Node*>>& contact_no
int layer_nr_lower = layer_nr - 1;
for (layer_nr_lower; layer_nr_lower >= 0; layer_nr_lower--) {
if (!m_object->get_tree_support_layer(layer_nr_lower + m_raft_layers)->area_groups.empty()) break;
}
}
if (layer_nr_lower < 0) continue;
auto& area_groups_lower = m_object->get_tree_support_layer(layer_nr_lower + m_raft_layers)->area_groups;
for (const auto& area_group : ts_layer->area_groups) {
@ -2589,7 +2591,8 @@ void TreeSupport::drop_nodes(std::vector<std::vector<Node*>>& contact_nodes)
size_t new_support_roof_layers_below = std::max(node.support_roof_layers_below, neighbour->support_roof_layers_below) - 1;
const bool to_buildplate = !is_inside_ex(m_ts_data->get_avoidance(0, layer_nr - 1), next_position);
Node* next_node = new Node(next_position, new_distance_to_top, node.skin_direction, new_support_roof_layers_below, to_buildplate, p_node,p_node->print_z,p_node->height);
Node * next_node = new Node(next_position, new_distance_to_top, node.skin_direction, new_support_roof_layers_below, to_buildplate, p_node,
m_object->get_layer(layer_nr - 1)->print_z, p_node->height);
next_node->movement = next_position - node.position;
contact_nodes[layer_nr - 1].push_back(next_node);
@ -2637,21 +2640,20 @@ void TreeSupport::drop_nodes(std::vector<std::vector<Node*>>& contact_nodes)
{
unsupported_branch_leaves.push_front({ layer_nr, p_node });
}
/*else {
else {
Node* pn = p_node;
for (int i = 0; i < bottom_interface_layers && pn; i++, pn = pn->parent)
pn->support_floor_layers_above = bottom_interface_layers - i;
for (int i = 0; i <= bottom_interface_layers && pn; i++, pn = pn->parent)
pn->support_floor_layers_above = bottom_interface_layers - i + 1; // +1 so the parent node has support_floor_layers_above=2
to_delete.insert(p_node);
}*/
}
continue;
}
// if the link between parent and current is cut by contours, delete this branch
// if the link between parent and current is cut by contours, mark current as bottom contact node
if (p_node->parent && intersection_ln({p_node->position, p_node->parent->position}, layer_contours).empty()==false)
{
//unsupported_branch_leaves.push_front({ layer_nr, p_node });
Node* pn = p_node->parent;
for (int i = 0; i < bottom_interface_layers && pn; i++, pn = pn->parent)
pn->support_floor_layers_above = bottom_interface_layers - i;
for (int i = 0; i <= bottom_interface_layers && pn; i++, pn = pn->parent)
pn->support_floor_layers_above = bottom_interface_layers - i + 1;
to_delete.insert(p_node);
continue;
}