diff options
| author | supermerill <merill@free.fr> | 2022-08-11 03:36:51 +0300 |
|---|---|---|
| committer | supermerill <merill@free.fr> | 2022-09-16 17:01:43 +0300 |
| commit | da264107c71a6d9bdad486ed9a4ee67fdda9657f (patch) | |
| tree | 29ac69d30d222081d0068201e69666f93c6ae4be | |
| parent | eab5d801234a595fdcc28019e2afb3b4c5fc86fa (diff) | |
fix empty vector access
| -rw-r--r-- | src/libslic3r/PrintObjectSlice.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/libslic3r/PrintObjectSlice.cpp b/src/libslic3r/PrintObjectSlice.cpp index a135c6569..06d029802 100644 --- a/src/libslic3r/PrintObjectSlice.cpp +++ b/src/libslic3r/PrintObjectSlice.cpp @@ -502,7 +502,8 @@ std::string fix_slicing_errors(LayerPtrs &layers, const std::function<void()> &t while (! layers.empty() && (layers.front()->lslices.empty() || layers.front()->empty())) { delete layers.front(); layers.erase(layers.begin()); - layers.front()->lower_layer = nullptr; + if(!layers.empty()) + layers.front()->lower_layer = nullptr; for (size_t i = 0; i < layers.size(); ++ i) layers[i]->set_id(layers[i]->id() - 1); } @@ -697,6 +698,7 @@ ExPolygons PrintObject::_shrink_contour_holes(double contour_delta, double not_c Polygons contours; ExPolygons holes; for (const Polygon& hole : ex_poly.holes) { + assert(hole.points.size() >= 3); //check if convex to reduce it // check whether first point forms a convex angle //note: we allow a deviation of 5.7° (0.01rad = 0.57°) |