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Fix of merging bridging regions:

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Fixed building a DAG of overlapping regions in expand_bridges_detect_orientations()
This commit is contained in:
Vojtech Bubnik 2023-05-04 17:25:26 +02:00
parent ccc193959b
commit 00ea0847b8
1 changed files with 5 additions and 2 deletions
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7
src/libslic3r/LayerRegion.cpp
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@ -230,10 +230,13 @@ Surfaces expand_bridges_detect_orientations(
bboxes[it - it_begin].overlap(bboxes[it2 - it_begin]) && bboxes[it - it_begin].overlap(bboxes[it2 - it_begin]) &&
// One may ignore holes, they are irrelevant for intersection test. // One may ignore holes, they are irrelevant for intersection test.
! intersection(it->expolygon.contour, it2->expolygon.contour).empty()) { ! intersection(it->expolygon.contour, it2->expolygon.contour).empty()) {
// The two bridge regions intersect. Give them the same group id. // The two bridge regions intersect. Give them the same (lower) group id.
uint32_t id = group_id(it->src_id); uint32_t id = group_id(it->src_id);
uint32_t id2 = group_id(it2->src_id); uint32_t id2 = group_id(it2->src_id);
bridges[it->src_id].group_id = bridges[it2->src_id].group_id = std::min(id, id2); if (id < id2)
bridges[id2].group_id = id;
else
bridges[id].group_id = id2;
} }
} }
} }