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Collect the perimeter surfaces when generating perimeters.

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The perimeter surfaces are later used for performing infill
below overhangs and to maintan configured vertical wall thickness
at sloping surfaces.
This commit is contained in:
bubnikv 2016-09-26 13:44:23 +02:00
parent 8f04f5d5f6
commit e0d1aa8a1a
7 changed files with 226 additions and 22 deletions
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27
xs/src/libslic3r/Layer.hpp
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@ -38,6 +38,11 @@ class LayerRegion
// collection of surfaces for infill generation
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.
// The perimeter_surfaces keep the IDs of the slices (top/bottom/)
SurfaceCollection perimeter_surfaces;
// collection of expolygons representing the bridged areas (thus not
// needing support material)
Polygons bridged;
@ -56,10 +61,16 @@ class LayerRegion
Flow flow(FlowRole role, bool bridge = false, double width = -1) const;
void merge_slices();
void prepare_fill_surfaces();
void make_perimeters(const SurfaceCollection &slices, SurfaceCollection* fill_surfaces);
void make_perimeters(const SurfaceCollection &slices, SurfaceCollection* perimeter_surfaces, SurfaceCollection* fill_surfaces);
void process_external_surfaces(const Layer* lower_layer);
double infill_area_threshold() const;
void export_region_slices_to_svg(const char *path);
void export_region_fill_surfaces_to_svg(const char *path);
// Export to "out/LayerRegion-name-%d.svg" with an increasing index with every export.
void export_region_slices_to_svg_debug(const char *name);
void export_region_fill_surfaces_to_svg_debug(const char *name);
private:
Layer *_layer;
PrintRegion *_region;
@ -74,7 +85,7 @@ typedef std::vector<LayerRegion*> LayerRegionPtrs;
class Layer {
friend class PrintObject;
public:
public:
size_t id() const;
void set_id(size_t id);
PrintObject* object();
@ -91,6 +102,8 @@ class Layer {
// collection of expolygons generated by slicing the original geometry;
// also known as 'islands' (all regions and surface types are merged here)
ExPolygonCollection slices;
// Surfaces of the perimeters including their gap fill.
ExPolygonCollection perimeter_expolygons;
size_t region_count() const;
@ -102,8 +115,14 @@ class Layer {
template <class T> bool any_internal_region_slice_contains(const T &item) const;
template <class T> bool any_bottom_region_slice_contains(const T &item) const;
void make_perimeters();
void export_region_slices_to_svg(const char *path);
void export_region_fill_surfaces_to_svg(const char *path);
// Export to "out/LayerRegion-name-%d.svg" with an increasing index with every export.
void export_region_slices_to_svg_debug(const char *name);
void export_region_fill_surfaces_to_svg_debug(const char *name);
protected:
protected:
size_t _id; // sequential number of layer, 0-based
PrintObject *_object;