#ifndef slic3r_PerimeterGenerator_hpp_ #define slic3r_PerimeterGenerator_hpp_ #include "libslic3r.h" #include #include "ExPolygonCollection.hpp" #include "Flow.hpp" #include "Polygon.hpp" #include "PrintConfig.hpp" #include "SurfaceCollection.hpp" namespace Slic3r { // Hierarchy of perimeters. class PerimeterGeneratorLoop { public: // Polygon of this contour. Polygon polygon; // Is it a contour or a hole? // Contours are CCW oriented, holes are CW oriented. bool is_contour; // Depth in the hierarchy. External perimeter has depth = 0. An external perimeter could be both a contour and a hole. unsigned short depth; // Children contour, may be both CCW and CW oriented (outer contours or holes). std::vector children; PerimeterGeneratorLoop(Polygon polygon, unsigned short depth, bool is_contour) : polygon(polygon), is_contour(is_contour), depth(depth) {} // External perimeter. It may be CCW or CW oriented (outer contour or hole contour). bool is_external() const { return this->depth == 0; } // An island, which may have holes, but it does not have another internal island. bool is_internal_contour() const; }; typedef std::vector PerimeterGeneratorLoops; class PerimeterGenerator { public: // Inputs: const SurfaceCollection *slices; const ExPolygonCollection *lower_slices; double layer_height; int layer_id; Flow perimeter_flow; Flow ext_perimeter_flow; Flow overhang_flow; Flow solid_infill_flow; const PrintRegionConfig *config; const PrintObjectConfig *object_config; const PrintConfig *print_config; // Outputs: ExtrusionEntityCollection *loops; ExtrusionEntityCollection *gap_fill; SurfaceCollection *fill_surfaces; PerimeterGenerator( // Input: const SurfaceCollection* slices, double layer_height, Flow flow, const PrintRegionConfig* config, const PrintObjectConfig* object_config, const PrintConfig* print_config, // Output: // Loops with the external thin walls ExtrusionEntityCollection* loops, // Gaps without the thin walls ExtrusionEntityCollection* gap_fill, // Infills without the gap fills SurfaceCollection* fill_surfaces) : slices(slices), lower_slices(NULL), layer_height(layer_height), layer_id(-1), perimeter_flow(flow), ext_perimeter_flow(flow), overhang_flow(flow), solid_infill_flow(flow), config(config), object_config(object_config), print_config(print_config), loops(loops), gap_fill(gap_fill), fill_surfaces(fill_surfaces), _ext_mm3_per_mm(-1), _mm3_per_mm(-1), _mm3_per_mm_overhang(-1) {} void process(); private: double _ext_mm3_per_mm; double _mm3_per_mm; double _mm3_per_mm_overhang; Polygons _lower_slices_p; ExtrusionEntityCollection _traverse_loops(const PerimeterGeneratorLoops &loops, ThickPolylines &thin_walls) const; ExtrusionEntityCollection _variable_width(const ThickPolylines &polylines, ExtrusionRole role, Flow flow) const; }; } #endif