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Diffstat (limited to 'src/libslic3r/GCode/ToolOrdering.hpp')
| -rw-r--r-- | src/libslic3r/GCode/ToolOrdering.hpp | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/libslic3r/GCode/ToolOrdering.hpp b/src/libslic3r/GCode/ToolOrdering.hpp new file mode 100644 index 000000000..4dcf6516a --- /dev/null +++ b/src/libslic3r/GCode/ToolOrdering.hpp @@ -0,0 +1,162 @@ +// Ordering of the tools to minimize tool switches. + +#ifndef slic3r_ToolOrdering_hpp_ +#define slic3r_ToolOrdering_hpp_ + +#include "libslic3r.h" + +namespace Slic3r { + +class Print; +class PrintObject; +class LayerTools; + + + +// Object of this class holds information about whether an extrusion is printed immediately +// after a toolchange (as part of infill/perimeter wiping) or not. One extrusion can be a part +// of several copies - this has to be taken into account. +class WipingExtrusions +{ +public: + bool is_anything_overridden() const { // if there are no overrides, all the agenda can be skipped - this function can tell us if that's the case + return something_overridden; + } + + // This is called from GCode::process_layer - see implementation for further comments: + const std::vector<int>* get_extruder_overrides(const ExtrusionEntity* entity, int correct_extruder_id, int num_of_copies); + + // This function goes through all infill entities, decides which ones will be used for wiping and + // marks them by the extruder id. Returns volume that remains to be wiped on the wipe tower: + float mark_wiping_extrusions(const Print& print, unsigned int old_extruder, unsigned int new_extruder, float volume_to_wipe); + + void ensure_perimeters_infills_order(const Print& print); + + bool is_overriddable(const ExtrusionEntityCollection& ee, const PrintConfig& print_config, const PrintObject& object, const PrintRegion& region) const; + + void set_layer_tools_ptr(const LayerTools* lt) { m_layer_tools = lt; } + +private: + int first_nonsoluble_extruder_on_layer(const PrintConfig& print_config) const; + int last_nonsoluble_extruder_on_layer(const PrintConfig& print_config) const; + + // This function is called from mark_wiping_extrusions and sets extruder that it should be printed with (-1 .. as usual) + void set_extruder_override(const ExtrusionEntity* entity, unsigned int copy_id, int extruder, unsigned int num_of_copies); + + // Returns true in case that entity is not printed with its usual extruder for a given copy: + bool is_entity_overridden(const ExtrusionEntity* entity, int copy_id) const { + return (entity_map.find(entity) == entity_map.end() ? false : entity_map.at(entity).at(copy_id) != -1); + } + + std::map<const ExtrusionEntity*, std::vector<int>> entity_map; // to keep track of who prints what + bool something_overridden = false; + const LayerTools* m_layer_tools; // so we know which LayerTools object this belongs to +}; + + + +class LayerTools +{ +public: + LayerTools(const coordf_t z, const PrintConfig* print_config_ptr = nullptr) : + print_z(z), + has_object(false), + has_support(false), + has_wipe_tower(false), + wipe_tower_partitions(0), + wipe_tower_layer_height(0.) {} + + // Changing these operators to epsilon version can make a problem in cases where support and object layers get close to each other. + // In case someone tries to do it, make sure you know what you're doing and test it properly (slice multiple objects at once with supports). + bool operator< (const LayerTools &rhs) const { return print_z < rhs.print_z; } + bool operator==(const LayerTools &rhs) const { return print_z == rhs.print_z; } + + bool is_extruder_order(unsigned int a, unsigned int b) const; + + coordf_t print_z; + bool has_object; + bool has_support; + // Zero based extruder IDs, ordered to minimize tool switches. + std::vector<unsigned int> extruders; + // Will there be anything extruded on this layer for the wipe tower? + // Due to the support layers possibly interleaving the object layers, + // wipe tower will be disabled for some support only layers. + bool has_wipe_tower; + // Number of wipe tower partitions to support the required number of tool switches + // and to support the wipe tower partitions above this one. + size_t wipe_tower_partitions; + coordf_t wipe_tower_layer_height; + + WipingExtrusions& wiping_extrusions() { + m_wiping_extrusions.set_layer_tools_ptr(this); + return m_wiping_extrusions; + } + +private: + // This object holds list of extrusion that will be used for extruder wiping + WipingExtrusions m_wiping_extrusions; +}; + + + +class ToolOrdering +{ +public: + ToolOrdering() {} + + // For the use case when each object is printed separately + // (print.config.complete_objects is true). + ToolOrdering(const PrintObject &object, unsigned int first_extruder = (unsigned int)-1, bool prime_multi_material = false); + + // For the use case when all objects are printed at once. + // (print.config.complete_objects is false). + ToolOrdering(const Print &print, unsigned int first_extruder = (unsigned int)-1, bool prime_multi_material = false); + + void clear() { m_layer_tools.clear(); } + + // Get the first extruder printing, including the extruder priming areas, returns -1 if there is no layer printed. + unsigned int first_extruder() const { return m_first_printing_extruder; } + + // Get the first extruder printing the layer_tools, returns -1 if there is no layer printed. + unsigned int last_extruder() const { return m_last_printing_extruder; } + + // For a multi-material print, the printing extruders are ordered in the order they shall be primed. + const std::vector<unsigned int>& all_extruders() const { return m_all_printing_extruders; } + + // Find LayerTools with the closest print_z. + LayerTools& tools_for_layer(coordf_t print_z); + const LayerTools& tools_for_layer(coordf_t print_z) const + { return *const_cast<const LayerTools*>(&const_cast<const ToolOrdering*>(this)->tools_for_layer(print_z)); } + + const LayerTools& front() const { return m_layer_tools.front(); } + const LayerTools& back() const { return m_layer_tools.back(); } + std::vector<LayerTools>::const_iterator begin() const { return m_layer_tools.begin(); } + std::vector<LayerTools>::const_iterator end() const { return m_layer_tools.end(); } + bool empty() const { return m_layer_tools.empty(); } + std::vector<LayerTools>& layer_tools() { return m_layer_tools; } + bool has_wipe_tower() const { return ! m_layer_tools.empty() && m_first_printing_extruder != (unsigned int)-1 && m_layer_tools.front().wipe_tower_partitions > 0; } + +private: + void initialize_layers(std::vector<coordf_t> &zs); + void collect_extruders(const PrintObject &object); + void reorder_extruders(unsigned int last_extruder_id); + void fill_wipe_tower_partitions(const PrintConfig &config, coordf_t object_bottom_z); + void collect_extruder_statistics(bool prime_multi_material); + + std::vector<LayerTools> m_layer_tools; + // First printing extruder, including the multi-material priming sequence. + unsigned int m_first_printing_extruder = (unsigned int)-1; + // Final printing extruder. + unsigned int m_last_printing_extruder = (unsigned int)-1; + // All extruders, which extrude some material over m_layer_tools. + std::vector<unsigned int> m_all_printing_extruders; + + + const PrintConfig* m_print_config_ptr = nullptr; +}; + + + +} // namespace SLic3r + +#endif /* slic3r_ToolOrdering_hpp_ */ |