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FIX: lightning infill may fail for some cases

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Change-Id: Ibc6e4e4262ef9fc0b36a936acc52a3b60dca2cb4
(cherry picked from commit e3b7c5c3404aa200c4b852b3963a7a0aae8837d2)
This commit is contained in:
Arthur
2022-12-07 10:54:43 +08:00
committed by Lane.Wei
parent 8375c73ac9
commit 6a644c271c
9 changed files with 34 additions and 36 deletions
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7
src/libslic3r/Fill/Lightning/DistanceField.cpp
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@@ -43,7 +43,8 @@ DistanceField::DistanceField(const coord_t& radius, const Polygons& current_outl
m_supporting_radius2 = Slic3r::sqr(int64_t(radius));
// Sample source polygons with a regular grid sampling pattern.
const BoundingBox overhang_bbox = get_extents(current_overhang);
for (const ExPolygon &expoly : union_ex(current_overhang)) {
ExPolygons expolys = offset2_ex(union_ex(current_overhang), -m_cell_size / 2, m_cell_size / 2); // remove dangling lines which causes sample_grid_pattern crash (fails the OUTER_LOW assertions)
for (const ExPolygon &expoly : expolys) {
const Points sampled_points = sample_grid_pattern(expoly, m_cell_size, overhang_bbox);
const size_t unsupported_points_prev_size = m_unsupported_points.size();
m_unsupported_points.resize(unsupported_points_prev_size + sampled_points.size());
@@ -94,10 +95,6 @@ DistanceField::DistanceField(const coord_t& radius, const Polygons& current_outl
void DistanceField::update(const Point& to_node, const Point& added_leaf)
{
std::ofstream out1("z:/misc/lightning.txt", std::ios::app);
out1 << m_unsupported_points.size() << std::endl;
out1.close();
Vec2d v = (added_leaf - to_node).cast<double>();
auto l2 = v.squaredNorm();
Vec2d extent = Vec2d(-v.y(), v.x()) * m_supporting_radius / sqrt(l2);