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			484 lines
		
	
	
	
		
			24 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			484 lines
		
	
	
	
		
			24 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| #ifndef slic3r_Print_hpp_
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| #define slic3r_Print_hpp_
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| 
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| #include "PrintBase.hpp"
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| 
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| #include "BoundingBox.hpp"
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| #include "Flow.hpp"
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| #include "Point.hpp"
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| #include "Layer.hpp"
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| #include "Model.hpp"
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| #include "Slicing.hpp"
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| #include "GCode/ToolOrdering.hpp"
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| #include "GCode/WipeTower.hpp"
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| #include "GCode/ThumbnailData.hpp"
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| #if ENABLE_GCODE_VIEWER
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| #include "GCode/GCodeProcessor.hpp"
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| #endif // ENABLE_GCODE_VIEWER
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| 
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| #include "libslic3r.h"
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| 
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| namespace Slic3r {
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| 
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| class Print;
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| class PrintObject;
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| class ModelObject;
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| class GCode;
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| #if !ENABLE_GCODE_VIEWER
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| class GCodePreviewData;
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| #endif // !ENABLE_GCODE_VIEWER
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| enum class SlicingMode : uint32_t;
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| 
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| // Print step IDs for keeping track of the print state.
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| enum PrintStep {
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|     psSkirt, 
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|     psBrim,
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|     // Synonym for the last step before the Wipe Tower / Tool Ordering, for the G-code preview slider to understand that 
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|     // all the extrusions are there for the layer slider to add color changes etc.
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|     psExtrusionPaths = psBrim,
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|     psWipeTower,
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|     // psToolOrdering is a synonym to psWipeTower, as the Wipe Tower calculates and modifies the ToolOrdering,
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|     // while if printing without the Wipe Tower, the ToolOrdering is calculated as well.
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|     psToolOrdering = psWipeTower,
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|     psGCodeExport,
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|     psCount,
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| };
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| 
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| enum PrintObjectStep {
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|     posSlice, posPerimeters, posPrepareInfill,
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|     posInfill, posIroning, posSupportMaterial, posCount,
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| };
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| 
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| // A PrintRegion object represents a group of volumes to print
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| // sharing the same config (including the same assigned extruder(s))
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| class PrintRegion
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| {
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|     friend class Print;
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| 
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| // Methods NOT modifying the PrintRegion's state:
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| public:
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|     const Print*                print() const { return m_print; }
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|     const PrintRegionConfig&    config() const { return m_config; }
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| 	// 1-based extruder identifier for this region and role.
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| 	unsigned int 				extruder(FlowRole role) const;
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|     Flow                        flow(FlowRole role, double layer_height, bool bridge, bool first_layer, double width, const PrintObject &object) const;
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|     // Average diameter of nozzles participating on extruding this region.
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|     coordf_t                    nozzle_dmr_avg(const PrintConfig &print_config) const;
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|     // Average diameter of nozzles participating on extruding this region.
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|     coordf_t                    bridging_height_avg(const PrintConfig &print_config) const;
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| 
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|     // Collect 0-based extruder indices used to print this region's object.
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| 	void                        collect_object_printing_extruders(std::vector<unsigned int> &object_extruders) const;
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| 	static void                 collect_object_printing_extruders(const PrintConfig &print_config, const PrintRegionConfig ®ion_config, std::vector<unsigned int> &object_extruders);
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| 
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| // Methods modifying the PrintRegion's state:
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| public:
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|     Print*                      print() { return m_print; }
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|     void                        set_config(const PrintRegionConfig &config) { m_config = config; }
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|     void                        set_config(PrintRegionConfig &&config) { m_config = std::move(config); }
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|     void                        config_apply_only(const ConfigBase &other, const t_config_option_keys &keys, bool ignore_nonexistent = false) 
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|                                         { this->m_config.apply_only(other, keys, ignore_nonexistent); }
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| 
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| protected:
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|     size_t             m_refcnt;
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| 
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| private:
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|     Print             *m_print;
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|     PrintRegionConfig  m_config;
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|     
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|     PrintRegion(Print* print) : m_refcnt(0), m_print(print) {}
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|     PrintRegion(Print* print, const PrintRegionConfig &config) : m_refcnt(0), m_print(print), m_config(config) {}
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|     ~PrintRegion() = default;
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| };
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| 
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| 
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| typedef std::vector<Layer*> LayerPtrs;
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| typedef std::vector<SupportLayer*> SupportLayerPtrs;
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| class BoundingBoxf3;        // TODO: for temporary constructor parameter
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| 
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| // Single instance of a PrintObject.
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| // As multiple PrintObjects may be generated for a single ModelObject (their instances differ in rotation around Z),
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| // ModelObject's instancess will be distributed among these multiple PrintObjects.
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| struct PrintInstance
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| {
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|     // Parent PrintObject
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|     PrintObject 		*print_object;
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|     // Source ModelInstance of a ModelObject, for which this print_object was created.
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| 	const ModelInstance *model_instance;
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| 	// Shift of this instance's center into the world coordinates.
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| 	Point 				 shift;
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| };
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| 
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| typedef std::vector<PrintInstance> PrintInstances;
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| 
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| class PrintObject : public PrintObjectBaseWithState<Print, PrintObjectStep, posCount>
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| {
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| private: // Prevents erroneous use by other classes.
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|     typedef PrintObjectBaseWithState<Print, PrintObjectStep, posCount> Inherited;
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| 
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| public:
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|     // vector of (layer height ranges and vectors of volume ids), indexed by region_id
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|     std::vector<std::vector<std::pair<t_layer_height_range, int>>> region_volumes;
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| 
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|     // Size of an object: XYZ in scaled coordinates. The size might not be quite snug in XY plane.
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|     const Vec3crd&          size() const			{ return m_size; }
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|     const PrintObjectConfig& config() const         { return m_config; }    
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|     const LayerPtrs&        layers() const          { return m_layers; }
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|     const SupportLayerPtrs& support_layers() const  { return m_support_layers; }
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|     const Transform3d&      trafo() const           { return m_trafo; }
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|     const PrintInstances&   instances() const       { return m_instances; }
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| 
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|     // Bounding box is used to align the object infill patterns, and to calculate attractor for the rear seam.
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|     // The bounding box may not be quite snug.
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|     BoundingBox             bounding_box()    const { return BoundingBox(Point(- m_size.x() / 2, - m_size.y() / 2), Point(m_size.x() / 2, m_size.y() / 2)); }
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|     // Height is used for slicing, for sorting the objects by height for sequential printing and for checking vertical clearence in sequential print mode.
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|     // The height is snug.
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|     coord_t 				height() 		  const { return m_size.z(); }
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|     // Centering offset of the sliced mesh from the scaled and rotated mesh of the model.
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|     const Point& 			center_offset()   const { return m_center_offset; }
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| 
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|     // adds region_id, too, if necessary
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|     void add_region_volume(unsigned int region_id, int volume_id, const t_layer_height_range &layer_range) {
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|         if (region_id >= region_volumes.size())
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| 			region_volumes.resize(region_id + 1);
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|         region_volumes[region_id].emplace_back(layer_range, volume_id);
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|     }
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|     // This is the *total* layer count (including support layers)
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|     // this value is not supposed to be compared with Layer::id
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|     // since they have different semantics.
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|     size_t 			total_layer_count() const { return this->layer_count() + this->support_layer_count(); }
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|     size_t 			layer_count() const { return m_layers.size(); }
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|     void 			clear_layers();
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|     const Layer* 	get_layer(int idx) const { return m_layers[idx]; }
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|     Layer* 			get_layer(int idx) 		 { return m_layers[idx]; }
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|     // Get a layer exactly at print_z.
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|     const Layer*	get_layer_at_printz(coordf_t print_z) const {
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|         auto it = Slic3r::lower_bound_by_predicate(m_layers.begin(), m_layers.end(), [print_z](const Layer *layer) { return layer->print_z < print_z; });
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| 		return (it == m_layers.end() || (*it)->print_z != print_z) ? nullptr : *it;
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| 	}
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|     Layer*			get_layer_at_printz(coordf_t print_z) { return const_cast<Layer*>(std::as_const(*this).get_layer_at_printz(print_z)); }
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|     // Get a layer approximately at print_z.
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|     const Layer*	get_layer_at_printz(coordf_t print_z, coordf_t epsilon) const {
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|         coordf_t limit = print_z - epsilon;
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|         auto it = Slic3r::lower_bound_by_predicate(m_layers.begin(), m_layers.end(), [limit](const Layer *layer) { return layer->print_z < limit; });
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|         return (it == m_layers.end() || (*it)->print_z > print_z + epsilon) ? nullptr : *it;
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| 	}
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|     Layer*			get_layer_at_printz(coordf_t print_z, coordf_t epsilon) { return const_cast<Layer*>(std::as_const(*this).get_layer_at_printz(print_z, epsilon)); }
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| 
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|     // print_z: top of the layer; slice_z: center of the layer.
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|     Layer* add_layer(int id, coordf_t height, coordf_t print_z, coordf_t slice_z);
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| 
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|     size_t support_layer_count() const { return m_support_layers.size(); }
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|     void clear_support_layers();
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|     SupportLayer* get_support_layer(int idx) { return m_support_layers[idx]; }
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|     SupportLayer* add_support_layer(int id, coordf_t height, coordf_t print_z);
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|     SupportLayerPtrs::const_iterator insert_support_layer(SupportLayerPtrs::const_iterator pos, size_t id, coordf_t height, coordf_t print_z, coordf_t slice_z);
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|     void delete_support_layer(int idx);
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|     
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|     // Initialize the layer_height_profile from the model_object's layer_height_profile, from model_object's layer height table, or from slicing parameters.
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|     // Returns true, if the layer_height_profile was changed.
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|     static bool update_layer_height_profile(const ModelObject &model_object, const SlicingParameters &slicing_parameters, std::vector<coordf_t> &layer_height_profile);
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| 
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|     // Collect the slicing parameters, to be used by variable layer thickness algorithm,
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|     // by the interactive layer height editor and by the printing process itself.
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|     // The slicing parameters are dependent on various configuration values
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|     // (layer height, first layer height, raft settings, print nozzle diameter etc).
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|     const SlicingParameters&    slicing_parameters() const { return m_slicing_params; }
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|     static SlicingParameters    slicing_parameters(const DynamicPrintConfig &full_config, const ModelObject &model_object, float object_max_z);
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| 
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|     // returns 0-based indices of extruders used to print the object (without brim, support and other helper extrusions)
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|     std::vector<unsigned int>   object_extruders() const;
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| 
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|     // Called when slicing to SVG (see Print.pm sub export_svg), and used by perimeters.t
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|     void slice();
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| 
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|     // Helpers to slice support enforcer / blocker meshes by the support generator.
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|     std::vector<ExPolygons>     slice_support_volumes(const ModelVolumeType &model_volume_type) const;
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|     std::vector<ExPolygons>     slice_support_blockers() const { return this->slice_support_volumes(ModelVolumeType::SUPPORT_BLOCKER); }
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|     std::vector<ExPolygons>     slice_support_enforcers() const { return this->slice_support_volumes(ModelVolumeType::SUPPORT_ENFORCER); }
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| 
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|     // Helpers to project custom supports on slices
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|     void project_and_append_custom_supports(FacetSupportType type, std::vector<ExPolygons>& expolys) const;
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|     void project_and_append_custom_enforcers(std::vector<ExPolygons>& enforcers) const { project_and_append_custom_supports(FacetSupportType::ENFORCER, enforcers); }
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|     void project_and_append_custom_blockers(std::vector<ExPolygons>& blockers) const { project_and_append_custom_supports(FacetSupportType::BLOCKER, blockers); }
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| 
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| private:
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|     // to be called from Print only.
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|     friend class Print;
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| 
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| 	PrintObject(Print* print, ModelObject* model_object, const Transform3d& trafo, PrintInstances&& instances);
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| 	~PrintObject() = default;
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| 
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|     void                    config_apply(const ConfigBase &other, bool ignore_nonexistent = false) { this->m_config.apply(other, ignore_nonexistent); }
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|     void                    config_apply_only(const ConfigBase &other, const t_config_option_keys &keys, bool ignore_nonexistent = false) { this->m_config.apply_only(other, keys, ignore_nonexistent); }
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|     PrintBase::ApplyStatus  set_instances(PrintInstances &&instances);
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|     // Invalidates the step, and its depending steps in PrintObject and Print.
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|     bool                    invalidate_step(PrintObjectStep step);
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|     // Invalidates all PrintObject and Print steps.
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|     bool                    invalidate_all_steps();
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|     // Invalidate steps based on a set of parameters changed.
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|     bool                    invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys);
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|     // If ! m_slicing_params.valid, recalculate.
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|     void                    update_slicing_parameters();
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| 
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|     static PrintObjectConfig object_config_from_model_object(const PrintObjectConfig &default_object_config, const ModelObject &object, size_t num_extruders);
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|     static PrintRegionConfig region_config_from_model_volume(const PrintRegionConfig &default_region_config, const DynamicPrintConfig *layer_range_config, const ModelVolume &volume, size_t num_extruders);
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| 
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| private:
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|     void make_perimeters();
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|     void prepare_infill();
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|     void infill();
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|     void ironing();
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|     void generate_support_material();
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| 
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|     void _slice(const std::vector<coordf_t> &layer_height_profile);
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|     std::string _fix_slicing_errors();
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|     void simplify_slices(double distance);
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|     bool has_support_material() const;
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|     void detect_surfaces_type();
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|     void process_external_surfaces();
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|     void discover_vertical_shells();
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|     void bridge_over_infill();
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|     void clip_fill_surfaces();
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|     void discover_horizontal_shells();
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|     void combine_infill();
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|     void _generate_support_material();
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| 
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|     // XYZ in scaled coordinates
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|     Vec3crd									m_size;
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|     PrintObjectConfig                       m_config;
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|     // Translation in Z + Rotation + Scaling / Mirroring.
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|     Transform3d                             m_trafo = Transform3d::Identity();
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|     // Slic3r::Point objects in scaled G-code coordinates
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|     std::vector<PrintInstance>              m_instances;
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|     // The mesh is being centered before thrown to Clipper, so that the Clipper's fixed coordinates require less bits.
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|     // This is the adjustment of the  the Object's coordinate system towards PrintObject's coordinate system.
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|     Point                                   m_center_offset;
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| 
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|     SlicingParameters                       m_slicing_params;
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|     LayerPtrs                               m_layers;
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|     SupportLayerPtrs                        m_support_layers;
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| 
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|     // this is set to true when LayerRegion->slices is split in top/internal/bottom
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|     // so that next call to make_perimeters() performs a union() before computing loops
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|     bool                    				m_typed_slices = false;
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| 
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|     std::vector<ExPolygons> slice_region(size_t region_id, const std::vector<float> &z, SlicingMode mode) const;
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|     std::vector<ExPolygons> slice_modifiers(size_t region_id, const std::vector<float> &z) const;
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|     std::vector<ExPolygons> slice_volumes(const std::vector<float> &z, SlicingMode mode, const std::vector<const ModelVolume*> &volumes) const;
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|     std::vector<ExPolygons> slice_volume(const std::vector<float> &z, SlicingMode mode, const ModelVolume &volume) const;
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|     std::vector<ExPolygons> slice_volume(const std::vector<float> &z, const std::vector<t_layer_height_range> &ranges, SlicingMode mode, const ModelVolume &volume) const;
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| };
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| 
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| struct WipeTowerData
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| {
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|     // Following section will be consumed by the GCodeGenerator.
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|     // Tool ordering of a non-sequential print has to be known to calculate the wipe tower.
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|     // Cache it here, so it does not need to be recalculated during the G-code generation.
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|     ToolOrdering                                         &tool_ordering;
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|     // Cache of tool changes per print layer.
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|     std::unique_ptr<std::vector<WipeTower::ToolChangeResult>> priming;
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|     std::vector<std::vector<WipeTower::ToolChangeResult>> tool_changes;
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|     std::unique_ptr<WipeTower::ToolChangeResult>          final_purge;
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|     std::vector<float>                                    used_filament;
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|     int                                                   number_of_toolchanges;
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| 
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|     // Depth of the wipe tower to pass to GLCanvas3D for exact bounding box:
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|     float                                                 depth;
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|     float                                                 brim_width;
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| 
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|     void clear() {
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|         priming.reset(nullptr);
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|         tool_changes.clear();
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|         final_purge.reset(nullptr);
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|         used_filament.clear();
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|         number_of_toolchanges = -1;
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|         depth = 0.f;
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|         brim_width = 0.f;
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|     }
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| 
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| private:
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| 	// Only allow the WipeTowerData to be instantiated internally by Print, 
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| 	// as this WipeTowerData shares reference to Print::m_tool_ordering.
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| 	friend class Print;
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| 	WipeTowerData(ToolOrdering &tool_ordering) : tool_ordering(tool_ordering) { clear(); }
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| 	WipeTowerData(const WipeTowerData & /* rhs */) = delete;
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| 	WipeTowerData &operator=(const WipeTowerData & /* rhs */) = delete;
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| };
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| 
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| struct PrintStatistics
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| {
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|     PrintStatistics() { clear(); }
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|     std::string                     estimated_normal_print_time;
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|     std::string                     estimated_silent_print_time;
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|     std::vector<std::pair<CustomGcodeType, std::string>>    estimated_normal_custom_gcode_print_times;
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|     std::vector<std::pair<CustomGcodeType, std::string>>    estimated_silent_custom_gcode_print_times;
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|     double                          total_used_filament;
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|     double                          total_extruded_volume;
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|     double                          total_cost;
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|     int                             total_toolchanges;
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|     double                          total_weight;
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|     double                          total_wipe_tower_cost;
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|     double                          total_wipe_tower_filament;
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|     std::map<size_t, float>         filament_stats;
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| 
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|     // Config with the filled in print statistics.
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|     DynamicConfig           config() const;
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|     // Config with the statistics keys populated with placeholder strings.
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|     static DynamicConfig    placeholders();
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|     // Replace the print statistics placeholders in the path.
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|     std::string             finalize_output_path(const std::string &path_in) const;
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| 
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|     void clear() {
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|         estimated_normal_print_time.clear();
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|         estimated_silent_print_time.clear();
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|         estimated_normal_custom_gcode_print_times.clear();
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|         estimated_silent_custom_gcode_print_times.clear();
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|         total_used_filament    = 0.;
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|         total_extruded_volume  = 0.;
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|         total_cost             = 0.;
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|         total_toolchanges      = 0;
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|         total_weight           = 0.;
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|         total_wipe_tower_cost  = 0.;
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|         total_wipe_tower_filament = 0.;
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|         filament_stats.clear();
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|     }
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| };
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| 
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| typedef std::vector<PrintObject*> PrintObjectPtrs;
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| typedef std::vector<PrintRegion*> PrintRegionPtrs;
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| 
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| // The complete print tray with possibly multiple objects.
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| class Print : public PrintBaseWithState<PrintStep, psCount>
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| {
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| private: // Prevents erroneous use by other classes.
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|     typedef PrintBaseWithState<PrintStep, psCount> Inherited;
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| 
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| public:
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|     Print() = default;
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| 	virtual ~Print() { this->clear(); }
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| 
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| 	PrinterTechnology	technology() const noexcept override { return ptFFF; }
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| 
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|     // Methods, which change the state of Print / PrintObject / PrintRegion.
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|     // The following methods are synchronized with process() and export_gcode(),
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|     // so that process() and export_gcode() may be called from a background thread.
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|     // In case the following methods need to modify data processed by process() or export_gcode(),
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|     // a cancellation callback is executed to stop the background processing before the operation.
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|     void                clear() override;
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|     bool                empty() const override { return m_objects.empty(); }
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| 
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|     ApplyStatus         apply(const Model &model, DynamicPrintConfig config) override;
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| 
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|     void                process() override;
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|     // Exports G-code into a file name based on the path_template, returns the file path of the generated G-code file.
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|     // If preview_data is not null, the preview_data is filled in for the G-code visualization (not used by the command line Slic3r).
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| #if ENABLE_GCODE_VIEWER
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|     std::string         export_gcode(const std::string& path_template, GCodeProcessor::Result* result, ThumbnailsGeneratorCallback thumbnail_cb = nullptr);
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| #else
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|     std::string         export_gcode(const std::string& path_template, GCodePreviewData* preview_data, ThumbnailsGeneratorCallback thumbnail_cb = nullptr);
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| #endif // ENABLE_GCODE_VIEWER
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| 
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|     // methods for handling state
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|     bool                is_step_done(PrintStep step) const { return Inherited::is_step_done(step); }
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|     // Returns true if an object step is done on all objects and there's at least one object.    
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|     bool                is_step_done(PrintObjectStep step) const;
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|     // Returns true if the last step was finished with success.
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|     bool                finished() const override { return this->is_step_done(psGCodeExport); }
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| 
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|     bool                has_infinite_skirt() const;
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|     bool                has_skirt() const;
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| 
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|     // Returns an empty string if valid, otherwise returns an error message.
 | |
|     std::string         validate() const override;
 | |
|     double              skirt_first_layer_height() const;
 | |
|     Flow                brim_flow() const;
 | |
|     Flow                skirt_flow() const;
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|     
 | |
|     std::vector<unsigned int> object_extruders() const;
 | |
|     std::vector<unsigned int> support_material_extruders() const;
 | |
|     std::vector<unsigned int> extruders() const;
 | |
|     double              max_allowed_layer_height() const;
 | |
|     bool                has_support_material() const;
 | |
|     // Make sure the background processing has no access to this model_object during this call!
 | |
|     void                auto_assign_extruders(ModelObject* model_object) const;
 | |
| 
 | |
|     const PrintConfig&          config() const { return m_config; }
 | |
|     const PrintObjectConfig&    default_object_config() const { return m_default_object_config; }
 | |
|     const PrintRegionConfig&    default_region_config() const { return m_default_region_config; }
 | |
|     //FIXME returning const vector to non-const PrintObject*, caller could modify PrintObjects!
 | |
|     const PrintObjectPtrs&      objects() const { return m_objects; }
 | |
|     PrintObject*                get_object(size_t idx) { return m_objects[idx]; }
 | |
|     const PrintObject*          get_object(size_t idx) const { return m_objects[idx]; }
 | |
|     const PrintRegionPtrs&      regions() const { return m_regions; }
 | |
|     // How many of PrintObject::copies() over all print objects are there?
 | |
|     // If zero, then the print is empty and the print shall not be executed.
 | |
|     unsigned int                num_object_instances() const;
 | |
| 
 | |
|     const ExtrusionEntityCollection& skirt() const { return m_skirt; }
 | |
|     const ExtrusionEntityCollection& brim() const { return m_brim; }
 | |
| 
 | |
|     const PrintStatistics&      print_statistics() const { return m_print_statistics; }
 | |
| 
 | |
|     // Wipe tower support.
 | |
|     bool                        has_wipe_tower() const;
 | |
|     const WipeTowerData&        wipe_tower_data(size_t extruders_cnt = 0, double first_layer_height = 0., double nozzle_diameter = 0.) const;
 | |
|     const ToolOrdering& 		tool_ordering() const { return m_tool_ordering; }
 | |
| 
 | |
| 	std::string                 output_filename(const std::string &filename_base = std::string()) const override;
 | |
| 
 | |
|     // Accessed by SupportMaterial
 | |
|     const PrintRegion*  get_region(size_t idx) const  { return m_regions[idx]; }
 | |
|     const ToolOrdering& get_tool_ordering() const { return m_wipe_tower_data.tool_ordering; }   // #ys_FIXME just for testing
 | |
| 
 | |
| protected:
 | |
|     // methods for handling regions
 | |
|     PrintRegion*        get_region(size_t idx)        { return m_regions[idx]; }
 | |
|     PrintRegion*        add_region();
 | |
|     PrintRegion*        add_region(const PrintRegionConfig &config);
 | |
| 
 | |
|     // Invalidates the step, and its depending steps in Print.
 | |
|     bool                invalidate_step(PrintStep step);
 | |
| 
 | |
| private:
 | |
| 	void 				config_diffs(
 | |
| 		const DynamicPrintConfig &new_full_config, 
 | |
| 		t_config_option_keys &print_diff, t_config_option_keys &object_diff, t_config_option_keys ®ion_diff, 
 | |
| 		t_config_option_keys &full_config_diff, 
 | |
| 		DynamicPrintConfig &filament_overrides) const;
 | |
| 
 | |
|     bool                invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys);
 | |
| 
 | |
|     void                _make_skirt();
 | |
|     void                _make_brim();
 | |
|     void                _make_wipe_tower();
 | |
| 
 | |
|     // Declared here to have access to Model / ModelObject / ModelInstance
 | |
|     static void         model_volume_list_update_supports(ModelObject &model_object_dst, const ModelObject &model_object_src);
 | |
| 
 | |
|     PrintConfig                             m_config;
 | |
|     PrintObjectConfig                       m_default_object_config;
 | |
|     PrintRegionConfig                       m_default_region_config;
 | |
|     PrintObjectPtrs                         m_objects;
 | |
|     PrintRegionPtrs                         m_regions;
 | |
| 
 | |
|     // Ordered collections of extrusion paths to build skirt loops and brim.
 | |
|     ExtrusionEntityCollection               m_skirt;
 | |
|     ExtrusionEntityCollection               m_brim;
 | |
| 
 | |
|     // Following section will be consumed by the GCodeGenerator.
 | |
|     ToolOrdering 							m_tool_ordering;
 | |
|     WipeTowerData                           m_wipe_tower_data {m_tool_ordering};
 | |
| 
 | |
|     // Estimated print time, filament consumed.
 | |
|     PrintStatistics                         m_print_statistics;
 | |
| 
 | |
|     // To allow GCode to set the Print's GCodeExport step status.
 | |
|     friend class GCode;
 | |
|     // Allow PrintObject to access m_mutex and m_cancel_callback.
 | |
|     friend class PrintObject;
 | |
| };
 | |
| 
 | |
| } /* slic3r_Print_hpp_ */
 | |
| 
 | |
| #endif
 | 
