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FIX: smooth_nodes may crash due to broken parent-child chain

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Change-Id: I770df691b41c6f18a0cb97e49e9e2251afe02e1a
(cherry picked from commit 2b5cdf0337fff277f7b949da568d6cdaa28a0d35)
This commit is contained in:
lane.wei 2023-02-15 12:03:55 +08:00 • committed by Lane.Wei
parent 8d7fb45164
commit 5df5cb9ff4
1 changed files with 5 additions and 1 deletions
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6
src/libslic3r/TreeSupport.cpp
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@ -3000,7 +3000,11 @@ void TreeSupport::drop_nodes(std::vector<std::vector<Node*>>& contact_nodes)
std::vector<Node*>::iterator to_erase = std::find(contact_nodes[i_layer].begin(), contact_nodes[i_layer].end(), i_node);
if (to_erase != contact_nodes[i_layer].end())
{
to_free_node_set.insert(*to_erase);
// update the parent-child chain
if(i_node->parent)
i_node->parent->child = i_node->child;
if(i_node->child)
i_node->child->parent = i_node->parent;
contact_nodes[i_layer].erase(to_erase);
to_free_node_set.insert(i_node);