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Diffstat (limited to 'src/libslic3r/Layer.hpp')
| -rw-r--r-- | src/libslic3r/Layer.hpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/libslic3r/Layer.hpp b/src/libslic3r/Layer.hpp new file mode 100644 index 000000000..8dbe850cc --- /dev/null +++ b/src/libslic3r/Layer.hpp @@ -0,0 +1,179 @@ +#ifndef slic3r_Layer_hpp_ +#define slic3r_Layer_hpp_ + +#include "libslic3r.h" +#include "Flow.hpp" +#include "SurfaceCollection.hpp" +#include "ExtrusionEntityCollection.hpp" +#include "ExPolygonCollection.hpp" +#include "PolylineCollection.hpp" + + +namespace Slic3r { + +class Layer; +class PrintRegion; +class PrintObject; + +class LayerRegion +{ +public: + Layer* layer() { return m_layer; } + const Layer* layer() const { return m_layer; } + PrintRegion* region() { return m_region; } + const PrintRegion* region() const { return m_region; } + + // collection of surfaces generated by slicing the original geometry + // divided by type top/bottom/internal + SurfaceCollection slices; + + // collection of extrusion paths/loops filling gaps + // These fills are generated by the perimeter generator. + // They are not printed on their own, but they are copied to this->fills during infill generation. + 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; + + // 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; + + // collection of polylines representing the unsupported bridge edges + PolylineCollection unsupported_bridge_edges; + + // ordered collection of extrusion paths/loops to build all perimeters + // (this collection contains only ExtrusionEntityCollection objects) + ExtrusionEntityCollection perimeters; + + // ordered collection of extrusion paths to fill surfaces + // (this collection contains only ExtrusionEntityCollection objects) + ExtrusionEntityCollection fills; + + Flow flow(FlowRole role, bool bridge = false, double width = -1) const; + void slices_to_fill_surfaces_clipped(); + void prepare_fill_surfaces(); + void make_perimeters(const SurfaceCollection &slices, 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) const; + void export_region_fill_surfaces_to_svg(const char *path) const; + // Export to "out/LayerRegion-name-%d.svg" with an increasing index with every export. + void export_region_slices_to_svg_debug(const char *name) const; + void export_region_fill_surfaces_to_svg_debug(const char *name) const; + + // Is there any valid extrusion assigned to this LayerRegion? + bool has_extrusions() const { return ! this->perimeters.entities.empty() || ! this->fills.entities.empty(); } + +protected: + friend class Layer; + + LayerRegion(Layer *layer, PrintRegion *region) : m_layer(layer), m_region(region) {} + ~LayerRegion() {} + +private: + Layer *m_layer; + PrintRegion *m_region; +}; + + +typedef std::vector<LayerRegion*> LayerRegionPtrs; + +class Layer +{ +public: + size_t id() const { return m_id; } + void set_id(size_t id) { m_id = id; } + PrintObject* object() { return m_object; } + const PrintObject* object() const { return m_object; } + + Layer *upper_layer; + Layer *lower_layer; + bool slicing_errors; + coordf_t slice_z; // Z used for slicing in unscaled coordinates + coordf_t print_z; // Z used for printing in unscaled coordinates + coordf_t height; // layer height in unscaled coordinates + + // 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; + + size_t region_count() const { return m_regions.size(); } + const LayerRegion* get_region(int idx) const { return m_regions.at(idx); } + LayerRegion* get_region(int idx) { return m_regions[idx]; } + LayerRegion* add_region(PrintRegion* print_region); + const LayerRegionPtrs& regions() const { return m_regions; } + + void make_slices(); + void merge_slices(); + template <class T> bool any_internal_region_slice_contains(const T &item) const { + for (const LayerRegion *layerm : m_regions) if (layerm->slices.any_internal_contains(item)) return true; + return false; + } + template <class T> bool any_bottom_region_slice_contains(const T &item) const { + for (const LayerRegion *layerm : m_regions) if (layerm->slices.any_bottom_contains(item)) return true; + return false; + } + void make_perimeters(); + void make_fills(); + + void export_region_slices_to_svg(const char *path) const; + void export_region_fill_surfaces_to_svg(const char *path) const; + // Export to "out/LayerRegion-name-%d.svg" with an increasing index with every export. + void export_region_slices_to_svg_debug(const char *name) const; + void export_region_fill_surfaces_to_svg_debug(const char *name) const; + + // Is there any valid extrusion assigned to this LayerRegion? + virtual bool has_extrusions() const { for (auto layerm : m_regions) if (layerm->has_extrusions()) return true; return false; } + +protected: + friend class PrintObject; + + Layer(size_t id, PrintObject *object, coordf_t height, coordf_t print_z, coordf_t slice_z) : + upper_layer(nullptr), lower_layer(nullptr), slicing_errors(false), + slice_z(slice_z), print_z(print_z), height(height), + m_id(id), m_object(object) {} + virtual ~Layer(); + +private: + // sequential number of layer, 0-based + size_t m_id; + PrintObject *m_object; + LayerRegionPtrs m_regions; +}; + +class SupportLayer : public Layer +{ +public: + // Polygons covered by the supports: base, interface and contact areas. + ExPolygonCollection support_islands; + // Extrusion paths for the support base and for the support interface and contacts. + ExtrusionEntityCollection support_fills; + + // Is there any valid extrusion assigned to this LayerRegion? + virtual bool has_extrusions() const { return ! support_fills.empty(); } + +protected: + friend class PrintObject; + + // The constructor has been made public to be able to insert additional support layers for the skirt or a wipe tower + // between the raft and the object first layer. + SupportLayer(size_t id, PrintObject *object, coordf_t height, coordf_t print_z, coordf_t slice_z) : + Layer(id, object, height, print_z, slice_z) {} + virtual ~SupportLayer() {} +}; + +} + +#endif |