QIDISlicer1.0.0

src/libslic3r/Arachne/SkeletalTrapezoidationEdge.hpp

@@ -0,0 +1,122 @@
+//Copyright (c) 2021 Ultimaker B.V.
+//CuraEngine is released under the terms of the AGPLv3 or higher.
+
+#ifndef SKELETAL_TRAPEZOIDATION_EDGE_H
+#define SKELETAL_TRAPEZOIDATION_EDGE_H
+
+#include <memory> // smart pointers
+#include <list>
+#include <vector>
+
+#include "utils/ExtrusionJunction.hpp"
+
+namespace Slic3r::Arachne
+{
+
+class SkeletalTrapezoidationEdge
+{
+private:
+    enum class Central { UNKNOWN = -1, NO, YES };
+
+public:
+    /*!
+     * Representing the location along an edge where the anchor position of a transition should be placed.
+     */
+    struct TransitionMiddle
+    {
+        coord_t pos; // Position along edge as measure from edge.from.p
+        int lower_bead_count;
+        coord_t feature_radius; // The feature radius at which this transition is placed
+        TransitionMiddle(coord_t pos, int lower_bead_count, coord_t feature_radius)
+            : pos(pos), lower_bead_count(lower_bead_count)
+            , feature_radius(feature_radius)
+        {}
+    };
+
+    /*!
+     * Represents the location along an edge where the lower or upper end of a transition should be placed.
+     */
+    struct TransitionEnd
+    {
+        coord_t pos; // Position along edge as measure from edge.from.p, where the edge is always the half edge oriented from lower to higher R
+        int lower_bead_count;
+        bool is_lower_end; // Whether this is the ed of the transition with lower bead count
+        TransitionEnd(coord_t pos, int lower_bead_count, bool is_lower_end)
+            : pos(pos), lower_bead_count(lower_bead_count), is_lower_end(is_lower_end)
+        {}
+    };
+
+    enum class EdgeType
+    {
+        NORMAL = 0, // from voronoi diagram
+        EXTRA_VD = 1, // introduced to voronoi diagram in order to make the gMAT
+        TRANSITION_END = 2 // introduced to voronoi diagram in order to make the gMAT
+    };
+    EdgeType type;
+
+    SkeletalTrapezoidationEdge() : SkeletalTrapezoidationEdge(EdgeType::NORMAL) {}
+    SkeletalTrapezoidationEdge(const EdgeType &type) : type(type), is_central(Central::UNKNOWN) {}
+
+    bool isCentral() const
+    {
+        assert(is_central != Central::UNKNOWN);
+        return is_central == Central::YES;
+    }
+    void setIsCentral(bool b)
+    {
+        is_central = b ? Central::YES : Central::NO;
+    }
+    bool centralIsSet() const
+    {
+        return is_central != Central::UNKNOWN;
+    }
+
+    bool hasTransitions(bool ignore_empty = false) const
+    {
+        return transitions.use_count() > 0 && (ignore_empty || ! transitions.lock()->empty());
+    }
+    void setTransitions(std::shared_ptr<std::list<TransitionMiddle>> storage)
+    {
+        transitions = storage;
+    }
+    std::shared_ptr<std::list<TransitionMiddle>> getTransitions()
+    {
+        return transitions.lock();
+    }
+
+    bool hasTransitionEnds(bool ignore_empty = false) const
+    {
+        return transition_ends.use_count() > 0 && (ignore_empty || ! transition_ends.lock()->empty());
+    }
+    void setTransitionEnds(std::shared_ptr<std::list<TransitionEnd>> storage)
+    {
+        transition_ends = storage;
+    }
+    std::shared_ptr<std::list<TransitionEnd>> getTransitionEnds()
+    {
+        return transition_ends.lock();
+    }
+
+    bool hasExtrusionJunctions(bool ignore_empty = false) const
+    {
+        return extrusion_junctions.use_count() > 0 && (ignore_empty || ! extrusion_junctions.lock()->empty());
+    }
+    void setExtrusionJunctions(std::shared_ptr<LineJunctions> storage)
+    {
+        extrusion_junctions = storage;
+    }
+    std::shared_ptr<LineJunctions> getExtrusionJunctions()
+    {
+        return extrusion_junctions.lock();
+    }
+
+private:
+    Central is_central; //! whether the edge is significant; whether the source segments have a sharp angle; -1 is unknown
+
+    std::weak_ptr<std::list<TransitionMiddle>> transitions;
+    std::weak_ptr<std::list<TransitionEnd>> transition_ends;
+    std::weak_ptr<LineJunctions> extrusion_junctions;
+};
+
+} // namespace Slic3r::Arachne
+#endif // SKELETAL_TRAPEZOIDATION_EDGE_H