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74 lines
3.6 KiB
C++
74 lines
3.6 KiB
C++
///|/ Copyright (c) Prusa Research 2019 - 2023 Vojtěch Bubník @bubnikv, Lukáš Matěna @lukasmatena
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///|/
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///|/ PrusaSlicer is released under the terms of the AGPLv3 or higher
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///|/
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#ifndef slic3r_ShortestPath_hpp_
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#define slic3r_ShortestPath_hpp_
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#include <stddef.h>
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#include <utility>
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#include <vector>
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#include <cstddef>
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#include "libslic3r.h"
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#include "ExtrusionEntity.hpp"
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#include "Point.hpp"
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#include "libslic3r/ExPolygon.hpp"
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#include "libslic3r/Polyline.hpp"
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namespace Slic3r {
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class ExtrusionEntityCollection;
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class Line;
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namespace ClipperLib {
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class PolyNode;
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using PolyNodes = std::vector<PolyNode*, PointsAllocator<PolyNode*>>;
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}
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class ExPolygon;
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using ExPolygons = std::vector<ExPolygon>;
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// Used by chain_expolygons()
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std::vector<size_t> chain_points(const Points &points, Point *start_near = nullptr);
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// Used to give layer islands a print order.
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std::vector<size_t> chain_expolygons(const ExPolygons &expolygons, Point *start_near = nullptr);
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// Chain extrusion entities by a shortest distance. Returns the ordered extrusions together with a "reverse" flag.
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// Set input "reversed" to true if the vector of "entities" is to be considered to be reversed once already.
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std::vector<std::pair<size_t, bool>> chain_extrusion_entities(const std::vector<ExtrusionEntity*> &entities, const Point *start_near = nullptr, const bool reversed = false);
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// Reorder & reverse extrusion entities in place based on the "chain" ordering.
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void reorder_extrusion_entities(std::vector<ExtrusionEntity*> &entities, const std::vector<std::pair<size_t, bool>> &chain);
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// Reorder & reverse extrusion entities in place.
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void chain_and_reorder_extrusion_entities(std::vector<ExtrusionEntity*> &entities, const Point *start_near = nullptr);
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// Chain extrusion entities by a shortest distance. Returns the ordered extrusions together with a "reverse" flag.
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// Set input "reversed" to true if the vector of "entities" is to be considered to be reversed.
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ExtrusionEntityReferences chain_extrusion_references(const std::vector<ExtrusionEntity*> &entities, const Point *start_near = nullptr, const bool reversed = false);
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// The same as above, respect eec.no_sort flag.
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ExtrusionEntityReferences chain_extrusion_references(const ExtrusionEntityCollection &eec, const Point *start_near = nullptr, const bool reversed = false);
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std::vector<std::pair<size_t, bool>> chain_extrusion_paths(std::vector<ExtrusionPath> &extrusion_paths, const Point *start_near = nullptr);
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void reorder_extrusion_paths(std::vector<ExtrusionPath> &extrusion_paths, std::vector<std::pair<size_t, bool>> &chain);
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void chain_and_reorder_extrusion_paths(std::vector<ExtrusionPath> &extrusion_paths, const Point *start_near = nullptr);
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Polylines chain_polylines(Polylines &&src, const Point *start_near = nullptr);
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inline Polylines chain_polylines(const Polylines& src, const Point* start_near = nullptr) { Polylines tmp(src); return chain_polylines(std::move(tmp), start_near); }
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ClipperLib::PolyNodes chain_clipper_polynodes(const Points &points, const ClipperLib::PolyNodes &items);
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// Chain instances of print objects by an approximate shortest path.
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// Returns pairs of PrintObject idx and instance of that PrintObject.
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class Print;
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struct PrintInstance;
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std::vector<const PrintInstance*> chain_print_object_instances(const Print &print);
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// Chain lines into polylines.
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Polylines chain_lines(const std::vector<Line> &lines, const double point_distance_epsilon);
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} // namespace Slic3r
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#endif /* slic3r_ShortestPath_hpp_ */
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