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// Ordering of the tools to minimize tool switches.
#ifndef slic3r_ToolOrdering_hpp_
#define slic3r_ToolOrdering_hpp_
#include "../libslic3r.h"
#include <utility>
#include <boost/container/small_vector.hpp>
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;
}
// When allocating extruder overrides of an object's ExtrusionEntity, overrides for maximum 3 copies are allocated in place.
typedef boost::container::small_vector<int32_t, 3> ExtruderPerCopy;
// This is called from GCode::process_layer - see implementation for further comments:
const ExtruderPerCopy* get_extruder_overrides(const ExtrusionEntity* entity, int correct_extruder_id, size_t 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;
bool is_overriddable_and_mark(const ExtrusionEntityCollection& ee, const PrintConfig& print_config, const PrintObject& object, const PrintRegion& region) {
bool out = this->is_overriddable(ee, print_config, object, region);
this->something_overridable |= out;
return out;
}
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, size_t copy_id, int extruder, size_t 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, size_t copy_id) const {
auto it = entity_map.find(entity);
return it == entity_map.end() ? false : it->second[copy_id] != -1;
}
std::map<const ExtrusionEntity*, ExtruderPerCopy> entity_map; // to keep track of who prints what
bool something_overridable = false;
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) : print_z(z) {}
// 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;
bool has_extruder(unsigned int extruder) const { return std::find(this->extruders.begin(), this->extruders.end(), extruder) != this->extruders.end(); }
// Return a zero based extruder from the region, or extruder_override if overriden.
unsigned int perimeter_extruder(const PrintRegion ®ion) const;
unsigned int infill_extruder(const PrintRegion ®ion) const;
unsigned int solid_infill_extruder(const PrintRegion ®ion) const;
// Returns a zero based extruder this eec should be printed with, according to PrintRegion config or extruder_override if overriden.
unsigned int extruder(const ExtrusionEntityCollection &extrusions, const PrintRegion ®ion) const;
coordf_t print_z = 0.;
bool has_object = false;
bool has_support = false;
// Zero based extruder IDs, ordered to minimize tool switches.
std::vector<unsigned int> extruders;
// If per layer extruder switches are inserted by the G-code preview slider, this value contains the new (1 based) extruder, with which the whole object layer is being printed with.
// If not overriden, it is set to 0.
unsigned int extruder_override = 0;
// 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 = false;
// 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 = 0;
coordf_t wipe_tower_layer_height = 0.;
// Custom G-code (color change, extruder switch, pause) to be performed before this layer starts to print.
const CustomGCode::Item *custom_gcode = nullptr;
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, 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, bool prime_multi_material = false);
void clear() { m_layer_tools.clear(); }
// Only valid for non-sequential print:
// Assign a pointer to a custom G-code to the respective ToolOrdering::LayerTools.
// Ignore color changes, which are performed on a layer and for such an extruder, that the extruder will not be printing above that layer.
// If multiple events are planned over a span of a single layer, use the last one.
void assign_custom_gcodes(const Print &print);
// 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.
const LayerTools& tools_for_layer(coordf_t print_z) const;
LayerTools& tools_for_layer(coordf_t print_z) { return const_cast<LayerTools&>(std::as_const(*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, const std::vector<std::pair<double, unsigned int>> &per_layer_extruder_switches);
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_ */
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