3DPrinting/PrusaSlicer-NonPlainar
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Fixed missing retractions for travels crossing support islands

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The bug was introduced in 576c167 (GCode.cpp)
This commit is contained in:
Lukas Matena 2022-08-15 17:22:45 +02:00
parent deac513faa
commit 43315fc1a1
3 changed files with 4 additions and 1 deletions
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2
src/libslic3r/ClipperUtils.cpp
View File

@ -705,6 +705,8 @@ Slic3r::Polylines diff_pl(const Slic3r::Polylines &subject, const Slic3r::Polygo
{ return _clipper_pl_open(ClipperLib::ctDifference, ClipperUtils::PolylinesProvider(subject), ClipperUtils::PolygonsProvider(clip)); }
Slic3r::Polylines diff_pl(const Slic3r::Polyline &subject, const Slic3r::ExPolygon &clip)
{ return _clipper_pl_open(ClipperLib::ctDifference, ClipperUtils::SinglePathProvider(subject.points), ClipperUtils::ExPolygonProvider(clip)); }
Slic3r::Polylines diff_pl(const Slic3r::Polyline &subject, const Slic3r::ExPolygons &clip)
{ return _clipper_pl_open(ClipperLib::ctDifference, ClipperUtils::SinglePathProvider(subject.points), ClipperUtils::ExPolygonsProvider(clip)); }
Slic3r::Polylines diff_pl(const Slic3r::Polylines &subject, const Slic3r::ExPolygon &clip)
{ return _clipper_pl_open(ClipperLib::ctDifference, ClipperUtils::PolylinesProvider(subject), ClipperUtils::ExPolygonProvider(clip)); }
Slic3r::Polylines diff_pl(const Slic3r::Polylines &subject, const Slic3r::ExPolygons &clip)

1
src/libslic3r/ClipperUtils.hpp
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@ -408,6 +408,7 @@ Slic3r::ExPolygons diff_ex(const Slic3r::Surfaces &subject, const Slic3r::Surfac
Slic3r::ExPolygons diff_ex(const Slic3r::SurfacesPtr &subject, const Slic3r::Polygons &clip, ApplySafetyOffset do_safety_offset = ApplySafetyOffset::No);
Slic3r::Polylines diff_pl(const Slic3r::Polylines &subject, const Slic3r::Polygons &clip);
Slic3r::Polylines diff_pl(const Slic3r::Polyline &subject, const Slic3r::ExPolygon &clip);
Slic3r::Polylines diff_pl(const Slic3r::Polyline &subject, const Slic3r::ExPolygons &clip);
Slic3r::Polylines diff_pl(const Slic3r::Polylines &subject, const Slic3r::ExPolygon &clip);
Slic3r::Polylines diff_pl(const Slic3r::Polylines &subject, const Slic3r::ExPolygons &clip);
Slic3r::Polylines diff_pl(const Slic3r::Polygons &subject, const Slic3r::Polygons &clip);

2
src/libslic3r/GCode.cpp
View File

@ -3137,7 +3137,7 @@ bool GCode::needs_retraction(const Polyline &travel, ExtrusionRole role)
if (role == erSupportMaterial) {
const SupportLayer* support_layer = dynamic_cast<const SupportLayer*>(m_layer);
//FIXME support_layer->support_islands.contains should use some search structure!
if (support_layer != NULL && ! intersection_pl(travel, support_layer->support_islands).empty())
if (support_layer != NULL && diff_pl(travel, support_layer->support_islands).empty())
// skip retraction if this is a travel move inside a support material island
//FIXME not retracting over a long path may cause oozing, which in turn may result in missing material
// at the end of the extrusion path!