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Improve performance by migrating to Clipper2 2.0.1 (#15969)

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Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
This commit is contained in:
Ian Bassi
2026-10-02 17:33:41 -03:00
committed by GitHub
co-authored by Rodrigo Faselli
parent 70bc02467b
commit 222c6a2df5
78 changed files with 3028 additions and 7038 deletions
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src/libslic3r/Algorithm/LineSplit.cpp
+2 -9
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@@ -14,7 +14,7 @@ static std::atomic<std::uint32_t> g_dbg_id = 0;
#endif
// Z for points from clip polygon
static constexpr auto CLIP_IDX = std::numeric_limits<ClipperLib_Z::cInt>::max();
static constexpr auto CLIP_IDX = std::numeric_limits<coord_t>::max();
static void cb_split_line(const ClipperZUtils::ZPoint& e1bot,
const ClipperZUtils::ZPoint& e1top,
@@ -91,14 +91,7 @@ SplittedLine do_split_line(const ClipperZUtils::ZPath& path, const ExPolygons& c
clip_path.emplace_back(ClipperZUtils::to_zpath<false>(hole.points, CLIP_IDX));
}
ClipperLib_Z::Clipper zclipper;
zclipper.PreserveCollinear(true);
zclipper.ZFillFunction(cb_split_line);
zclipper.AddPaths(clip_path, ClipperLib_Z::ptClip, true);
zclipper.AddPath(path, ClipperLib_Z::ptSubject, false);
ClipperLib_Z::PolyTree polytree;
zclipper.Execute(ClipperLib_Z::ctIntersection, polytree, ClipperLib_Z::pftNonZero, ClipperLib_Z::pftNonZero);
ClipperLib_Z::PolyTreeToPaths(std::move(polytree), intersections);
intersections = ClipperZUtils::clip_zpaths(ctIntersection, ClipperZUtils::ZPaths{ path }, true, clip_path, cb_split_line, true);
}
if (intersections.empty()) {
return {};