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Reverted the perimeter generator to not save the perimeter areas.

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These could be calculated from the fill areas if needed.
On the other side, the non-classified (non-split) fill areas are stored
now for use in the "ensure vertical wall thickness" feature,
also the non-split fill areas are re-used when recalculating the infills.
This is safer than trying to stitch the fill region together from the
classified fragments.

Modified the "ensure vertical wall thickness" feature to use the non-split
fill areas instead of perimeter areas for the calculation
of non-supported regions. This is cheaper as the fill areas contain
roughly half the edges.
This commit is contained in:
bubnikv
2016-11-17 23:22:59 +01:00
parent 2085a482c7
commit 79f5a16536
12 changed files with 94 additions and 116 deletions
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12
xs/src/libslic3r/Layer.hpp
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@@ -36,8 +36,11 @@ class LayerRegion
// collection of extrusion paths/loops filling gaps
ExtrusionEntityCollection thin_fills;
// Unspecified fill polygons, used for overhang detection ("ensure vertical wall thickness feature")
// and for re-starting of infills.
ExPolygons fill_expolygons;
// collection of surfaces for infill generation
SurfaceCollection fill_surfaces;
SurfaceCollection fill_surfaces;
// Collection of perimeter surfaces. This is a cached result of diff(slices, fill_surfaces).
// While not necessary, the memory consumption is meager and it speeds up calculation.
@@ -63,7 +66,7 @@ class LayerRegion
void merge_slices();
void slices_to_fill_surfaces_clipped();
void prepare_fill_surfaces();
void make_perimeters(const SurfaceCollection &slices, SurfaceCollection* perimeter_surfaces, SurfaceCollection* fill_surfaces);
void make_perimeters(const SurfaceCollection &slices, SurfaceCollection* fill_surfaces);
void process_external_surfaces(const Layer* lower_layer);
double infill_area_threshold() const;
@@ -103,10 +106,9 @@ public:
// collection of expolygons generated by slicing the original geometry;
// also known as 'islands' (all regions and surface types are merged here)
// The slices are chained by the shortest traverse distance and this traversal
// order will be recovered by the G-code generator.
ExPolygonCollection slices;
// Surfaces of the perimeters including their gap fill.
ExPolygonCollection perimeter_expolygons;
size_t region_count() const;
const LayerRegion* get_region(int idx) const { return this->regions.at(idx); }