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Fix of safety_offset() after ClipperUtils refactoring.

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Fixes Solid infill where there should be none #6482
Also the safety offsetting was revised to be enabled only where needed,
the "do safety offset" is now easy to discover by
a new ApplySafetyOffset::Yes enum, and safety offset over union, which
is better done by offset() / offset_ex() has been replaced with
new union_safety_offset() / union_safety_offset_ex() functions, which
better convey their meaning and which could be better optimized than
union() with the safety offset applied.
This commit is contained in:
Vojtech Bubnik 2021-05-05 12:16:40 +02:00
parent cc68a292d1
commit 7d4b3f2992
10 changed files with 210 additions and 194 deletions
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2
src/libslic3r/BridgeDetector.cpp
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@ -58,7 +58,7 @@ void BridgeDetector::initialize()
// detect anchors as intersection between our bridge expolygon and the lower slices
// safety offset required to avoid Clipper from detecting empty intersection while Boost actually found some edges
this->_anchor_regions = intersection_ex(grown, to_polygons(this->lower_slices), true);
this->_anchor_regions = intersection_ex(grown, union_safety_offset(this->lower_slices));
/*
if (0) {