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Fix arrange crash with incorrect geometries. Guard the case with tests.

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This commit is contained in:
tamasmeszaros 2019-09-23 11:58:39 +02:00
parent 4aec14ddab
commit a6f5fe7bea
6 changed files with 92 additions and 120 deletions
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18
src/libslic3r/Arrange.cpp
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@ -618,19 +618,21 @@ void arrange(ArrangePolygons & arrangables,
items.reserve(arrangables.size());
// Create Item from Arrangeable
auto process_arrangeable =
[](const ArrangePolygon &arrpoly, std::vector<Item> &outp)
auto process_arrangeable = [](const ArrangePolygon &arrpoly,
std::vector<Item> & outp)
{
Polygon p = arrpoly.poly.contour;
const Vec2crd & offs = arrpoly.translation;
double rotation = arrpoly.rotation;
Polygon p = arrpoly.poly.contour;
const Vec2crd &offs = arrpoly.translation;
double rotation = arrpoly.rotation;
if (p.is_counter_clockwise()) p.reverse();
clppr::Polygon clpath(Slic3rMultiPoint_to_ClipperPath(p));
auto firstp = clpath.Contour.front();
clpath.Contour.emplace_back(firstp);
if (!clpath.Contour.empty()) {
auto firstp = clpath.Contour.front();
clpath.Contour.emplace_back(firstp);
}
outp.emplace_back(std::move(clpath));
outp.back().rotation(rotation);