3DPrinting/PrusaSlicer-NonPlainar
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Fixed a crash when Arachne returns extrusion with zero-length (just two same endpoints).

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This commit is contained in:
Lukáš Hejl 2022-06-10 11:43:41 +02:00
parent 4b00b78e7f
commit 18124b07a2
1 changed files with 10 additions and 1 deletions
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11
src/libslic3r/PerimeterGenerator.cpp
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@ -405,7 +405,9 @@ static ExtrusionEntityCollection traverse_extrusions(const PerimeterGenerator &p
// Reapply the nearest point search for starting point.
// We allow polyline reversal because Clipper may have randomly reversed polylines during clipping.
chain_and_reorder_extrusion_paths(paths, &paths.front().first_point());
// Arachne sometimes creates extrusion with zero-length (just two same endpoints);
if (!paths.empty())
chain_and_reorder_extrusion_paths(paths, &paths.front().first_point());
} else {
extrusion_paths_append(paths, *extrusion, role, is_external ? perimeter_generator.ext_perimeter_flow : perimeter_generator.perimeter_flow);
}
@ -463,6 +465,13 @@ void PerimeterGenerator::process_arachne()
Arachne::WallToolPaths wallToolPaths(last_p, ext_perimeter_spacing, perimeter_spacing, coord_t(loop_number + 1), 0, *this->object_config, *this->print_config);
std::vector<Arachne::VariableWidthLines> perimeters = wallToolPaths.getToolPaths();
if (perimeters.size() == 1 && perimeters.front().size() == 2 && perimeters.front().front().junctions.size() == 2) {
for (const Point &pt : last_p.front().points) {
std::cout << "(" << pt.x() << ", " << pt.y() << ")," << std::endl;
}
std::cout << "" << std::endl;
}
int start_perimeter = int(perimeters.size()) - 1;
int end_perimeter = -1;
int direction = -1;