3DPrinting/PrusaSlicer-NonPlainar
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Fixed asserts in connecting islands and in perimeter overhangs

Browse source 
due to self intersections in clipped clipping rectangle.
This commit is contained in:
Vojtech Bubnik 2022-12-06 14:43:15 +01:00
parent 767a556443
commit 7f6f63db0f
2 changed files with 31 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

15
src/libslic3r/Layer.cpp
View file

@ -317,13 +317,16 @@ void Layer::build_up_down_graph(Layer& below, Layer& above)
coord_t* end = srcs + 4;
std::sort(begin, end);
end = std::unique(begin, end);
assert(begin + 2 == end);
if (begin + 1 == end)
if (begin + 1 == end) {
// Self intersection may happen on source contour. Just copy the Z value.
pt.z() = *begin;
else if (begin + 2 <= end) {
// store a -1 based negative index into the "intersections" vector here.
m_intersections.emplace_back(srcs[0], srcs[1]);
pt.z() = -coord_t(m_intersections.size());
} else {
assert(begin + 2 == end);
if (begin + 2 <= end) {
// store a -1 based negative index into the "intersections" vector here.
m_intersections.emplace_back(srcs[0], srcs[1]);
pt.z() = -coord_t(m_intersections.size());
}
}
}
const std::vector<std::pair<coord_t, coord_t>>& intersections() const { return m_intersections; }