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Fix of G-code path planning: Infill lines were incorrectly ordered

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for islands with another islands in their holes.

Improvement of chaining of infill lines for 3D honeycomb, Gyroid and
Honeycomb infill: New TSP chaining algorithm is used.
This commit is contained in:
bubnikv 2019-09-27 09:51:07 +02:00
parent d06831076d
commit e65ab90c16
9 changed files with 58 additions and 46 deletions
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14
src/libslic3r/ShortestPath.cpp
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@ -339,6 +339,20 @@ std::vector<size_t> chain_points(const Points &points, Point *start_near)
return out;
}
Polylines chain_infill_polylines(Polylines &polylines)
{
auto segment_end_point = [&polylines](size_t idx, bool first_point) -> const Point& { return first_point ? polylines[idx].first_point() : polylines[idx].last_point(); };
std::vector<std::pair<size_t, bool>> ordered = chain_segments<Point, decltype(segment_end_point)>(segment_end_point, polylines.size(), nullptr);
Polylines out;
out.reserve(polylines.size());
for (auto &segment_and_reversal : ordered) {
out.emplace_back(std::move(polylines[segment_and_reversal.first]));
if (segment_and_reversal.second)
out.back().reverse();
}
return out;
}
template<class T> static inline T chain_path_items(const Points &points, const T &items)
{
auto segment_end_point = [&points](size_t idx, bool /* first_point */) -> const Point& { return points[idx]; };