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127 lines
6.7 KiB
C++
127 lines
6.7 KiB
C++
#ifndef slic3r_ExtrusionEntityCollection_hpp_
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#define slic3r_ExtrusionEntityCollection_hpp_
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#include "libslic3r.h"
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#include "ExtrusionEntity.hpp"
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namespace Slic3r {
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// Remove those items from extrusion_entities, that do not match role.
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// Do nothing if role is mixed.
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// Removed elements are NOT being deleted.
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void filter_by_extrusion_role_in_place(ExtrusionEntitiesPtr &extrusion_entities, ExtrusionRole role);
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// Return new vector of ExtrusionEntities* with only those items from input extrusion_entities, that match role.
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// Return all extrusion entities if role is mixed.
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// Returned extrusion entities are shared with the source vector, they are NOT cloned, they are considered to be owned by extrusion_entities.
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inline ExtrusionEntitiesPtr filter_by_extrusion_role(const ExtrusionEntitiesPtr &extrusion_entities, ExtrusionRole role)
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{
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ExtrusionEntitiesPtr out { extrusion_entities };
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filter_by_extrusion_role_in_place(out, role);
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return out;
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}
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class ExtrusionEntityCollection : public ExtrusionEntity
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{
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public:
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ExtrusionEntity* clone() const override;
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// Create a new object, initialize it with this object using the move semantics.
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ExtrusionEntity* clone_move() override { return new ExtrusionEntityCollection(std::move(*this)); }
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ExtrusionEntitiesPtr entities; // we own these entities
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bool no_sort;
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ExtrusionEntityCollection(): no_sort(false) {}
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ExtrusionEntityCollection(const ExtrusionEntityCollection &other) : no_sort(other.no_sort) { this->append(other.entities); }
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ExtrusionEntityCollection(ExtrusionEntityCollection &&other) : entities(std::move(other.entities)), no_sort(other.no_sort) {}
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explicit ExtrusionEntityCollection(const ExtrusionPaths &paths);
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ExtrusionEntityCollection& operator=(const ExtrusionEntityCollection &other);
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ExtrusionEntityCollection& operator=(ExtrusionEntityCollection &&other)
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{ this->entities = std::move(other.entities); this->no_sort = other.no_sort; return *this; }
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~ExtrusionEntityCollection() { clear(); }
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explicit operator ExtrusionPaths() const;
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bool is_collection() const override { return true; }
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ExtrusionRole role() const override {
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ExtrusionRole out = erNone;
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for (const ExtrusionEntity *ee : entities) {
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ExtrusionRole er = ee->role();
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out = (out == erNone || out == er) ? er : erMixed;
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}
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return out;
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}
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bool can_reverse() const override { return !this->no_sort; }
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bool empty() const { return this->entities.empty(); }
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void clear();
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void swap (ExtrusionEntityCollection &c);
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void append(const ExtrusionEntity &entity) { this->entities.emplace_back(entity.clone()); }
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void append(ExtrusionEntity &&entity) { this->entities.emplace_back(entity.clone_move()); }
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void append(const ExtrusionEntitiesPtr &entities) {
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this->entities.reserve(this->entities.size() + entities.size());
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for (const ExtrusionEntity *ptr : entities)
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this->entities.emplace_back(ptr->clone());
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}
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void append(ExtrusionEntitiesPtr &&src) {
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if (entities.empty())
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entities = std::move(src);
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else {
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std::move(std::begin(src), std::end(src), std::back_inserter(entities));
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src.clear();
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}
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}
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void append(const ExtrusionPaths &paths) {
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this->entities.reserve(this->entities.size() + paths.size());
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for (const ExtrusionPath &path : paths)
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this->entities.emplace_back(path.clone());
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}
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void append(ExtrusionPaths &&paths) {
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this->entities.reserve(this->entities.size() + paths.size());
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for (ExtrusionPath &path : paths)
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this->entities.emplace_back(new ExtrusionPath(std::move(path)));
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}
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void replace(size_t i, const ExtrusionEntity &entity);
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void remove(size_t i);
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static ExtrusionEntityCollection chained_path_from(const ExtrusionEntitiesPtr &extrusion_entities, const Point &start_near, ExtrusionRole role = erMixed);
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ExtrusionEntityCollection chained_path_from(const Point &start_near, ExtrusionRole role = erMixed) const
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{ return this->no_sort ? *this : chained_path_from(this->entities, start_near, role); }
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void reverse() override;
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const Point& first_point() const override { return this->entities.front()->first_point(); }
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const Point& last_point() const override { return this->entities.back()->last_point(); }
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// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion width.
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// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
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void polygons_covered_by_width(Polygons &out, const float scaled_epsilon) const override;
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// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion spacing.
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// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
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// Useful to calculate area of an infill, which has been really filled in by a 100% rectilinear infill.
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void polygons_covered_by_spacing(Polygons &out, const float scaled_epsilon) const override;
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Polygons polygons_covered_by_width(const float scaled_epsilon = 0.f) const
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{ Polygons out; this->polygons_covered_by_width(out, scaled_epsilon); return out; }
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Polygons polygons_covered_by_spacing(const float scaled_epsilon = 0.f) const
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{ Polygons out; this->polygons_covered_by_spacing(out, scaled_epsilon); return out; }
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size_t items_count() const;
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/// Returns a flattened copy of this ExtrusionEntityCollection. That is, all of the items in its entities vector are not collections.
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/// You should be iterating over flatten().entities if you are interested in the underlying ExtrusionEntities (and don't care about hierarchy).
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/// \param preserve_ordering Flag to method that will flatten if and only if the underlying collection is sortable when True (default: False).
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ExtrusionEntityCollection flatten(bool preserve_ordering = false) const;
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double min_mm3_per_mm() const override;
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double total_volume() const override { double volume=0.; for (const auto& ent : entities) volume+=ent->total_volume(); return volume; }
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// Following methods shall never be called on an ExtrusionEntityCollection.
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Polyline as_polyline() const override {
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throw std::runtime_error("Calling as_polyline() on a ExtrusionEntityCollection");
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return Polyline();
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};
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void collect_polylines(Polylines &dst) const override {
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for (ExtrusionEntity* extrusion_entity : this->entities)
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extrusion_entity->collect_polylines(dst);
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}
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double length() const override {
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throw std::runtime_error("Calling length() on a ExtrusionEntityCollection");
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return 0.;
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}
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};
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} // namespace Slic3r
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#endif
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