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Don't consider top surface as safe for 'only_retract_when_crossing_perimeters'

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supermerill/SuperSlicer#2128
This commit is contained in:
supermerill 2022-01-04 22:54:36 +01:00
parent f0548ab5f7
commit 74e01b5759
3 changed files with 17 additions and 5 deletions
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13
src/libslic3r/GCode.cpp
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@ -4432,13 +4432,20 @@ bool GCode::can_cross_perimeter(const Polyline& travel, bool offset)
//if (inside) {
//contained inside at least one bb
//construct m_layer_slices_offseted if needed
if (m_layer_slices_offseted.layer != m_layer && offset) {
if (m_layer_slices_offseted.layer != m_layer) {
m_layer_slices_offseted.layer = m_layer;
m_layer_slices_offseted.diameter = scale_t(EXTRUDER_CONFIG_WITH_DEFAULT(nozzle_diameter, 0.4));
m_layer_slices_offseted.slices = offset_ex(m_layer->lslices, -m_layer_slices_offseted.diameter * 1.5f);
m_layer_slices_offseted.slices = m_layer->lslices;
m_layer_slices_offseted.slices_offsetted = offset_ex(m_layer->lslices, -m_layer_slices_offseted.diameter * 1.5f);
//remove top surfaces
for (const LayerRegion* reg : m_layer->regions()) {
m_layer_slices_offseted.slices_offsetted = diff_ex(m_layer_slices_offseted.slices_offsetted, to_expolygons(reg->fill_surfaces.filter_by_type_flag(SurfaceType::stPosTop)));
m_layer_slices_offseted.slices = diff_ex(m_layer_slices_offseted.slices, to_expolygons(reg->fill_surfaces.filter_by_type_flag(SurfaceType::stPosTop)));
}
}
// test if a expoly contains the entire travel
for (const ExPolygon &poly : offset ? m_layer_slices_offseted.slices : m_layer->lslices)
for (const ExPolygon &poly : offset ? m_layer_slices_offseted.slices_offsetted : m_layer_slices_offseted.slices)
if (poly.contains(travel)) {
return false;
}

7
src/libslic3r/GCode.hpp
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@ -367,8 +367,11 @@ private:
// For crossing perimeter retraction detection (contain the layer & nozzle widdth used to construct it)
// !!!! not thread-safe !!!! if threaded per layer, please store it in the thread.
struct SliceOffsetted {
ExPolygons slices; const Layer* layer; coord_t diameter;
} m_layer_slices_offseted{ {},nullptr, 0};
ExPolygons slices;
ExPolygons slices_offsetted;
const Layer* layer;
coord_t diameter;
} m_layer_slices_offseted{ {},{},nullptr, 0};
double m_volumetric_speed;
// Support for the extrusion role markers. Which marker is active?
ExtrusionRole m_last_extrusion_role;

2
src/libslic3r/SurfaceCollection.hpp
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@ -19,7 +19,9 @@ public:
operator ExPolygons() const;
void simplify(double tolerance);
void group(std::vector<SurfacesPtr> *retval);
// get all surfaces that have this exact SurfaceType
SurfacesConstPtr filter_by_type(const SurfaceType type) const;
// get all surfaces that have this SurfaceType flag in their SurfaceType
SurfacesConstPtr filter_by_type_flag(const SurfaceType allowed, const SurfaceType not_allowed = stNone) const;
SurfacesConstPtr filter_by_types(const SurfaceType *types, int ntypes) const;
void keep_type(const SurfaceType type);