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Bugfix: custom seam identification

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Bounding boxes of polygons could overlap. Ask the AABB tree for all possible candidates.
Might be faster than searching for the closest triangle, that requires traversing the whole depth of the tree every time.
This commit is contained in:
Lukas Matena 2020-12-04 16:34:23 +01:00
parent 985a4a8bf3
commit 997ee971b4
2 changed files with 24 additions and 25 deletions
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12
src/libslic3r/GCode/SeamPlacer.cpp
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@ -569,11 +569,13 @@ void SeamPlacer::get_enforcers_and_blockers(size_t layer_id,
auto is_inside = [](const Point& pt,
const CustomTrianglesPerLayer& custom_data) -> bool {
assert(! custom_data.polys.empty());
// Now ask the AABB tree which polygon we should check and check it.
size_t candidate = AABBTreeIndirect::get_candidate_idx(custom_data.tree, pt);
if (candidate != size_t(-1)
&& custom_data.polys[candidate].contains(pt))
return true;
// Now ask the AABB tree which polygons we should check and check them.
std::vector<size_t> candidates;
AABBTreeIndirect::get_candidate_idxs(custom_data.tree, pt, candidates);
if (! candidates.empty())
for (size_t idx : candidates)
if (custom_data.polys[idx].contains(pt))
return true;
return false;
};