mirror of
https://github.com/SoftFever/OrcaSlicer.git
synced 2025-07-10 16:27:54 -06:00
ec86d94f02
collides with the maximum allowed layer height at the Printer Extruder 0.25mm. Works around "MMU2s and supports on prusaslicer 2.2.0 issue #3919"
789 lines
39 KiB
C++
789 lines
39 KiB
C++
#include "Print.hpp"
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#include "ToolOrdering.hpp"
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// #define SLIC3R_DEBUG
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// Make assert active if SLIC3R_DEBUG
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#ifdef SLIC3R_DEBUG
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#define DEBUG
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#define _DEBUG
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#undef NDEBUG
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#endif
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#include <cassert>
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#include <limits>
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#include <libslic3r.h>
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#include "../GCodeWriter.hpp"
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namespace Slic3r {
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// Returns true in case that extruder a comes before b (b does not have to be present). False otherwise.
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bool LayerTools::is_extruder_order(unsigned int a, unsigned int b) const
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{
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if (a == b)
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return false;
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for (auto extruder : extruders) {
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if (extruder == a)
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return true;
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if (extruder == b)
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return false;
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}
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return false;
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}
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// Return a zero based extruder from the region, or extruder_override if overriden.
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unsigned int LayerTools::perimeter_extruder(const PrintRegion ®ion) const
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{
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assert(region.config().perimeter_extruder.value > 0);
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return ((this->extruder_override == 0) ? region.config().perimeter_extruder.value : this->extruder_override) - 1;
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}
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unsigned int LayerTools::infill_extruder(const PrintRegion ®ion) const
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{
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assert(region.config().infill_extruder.value > 0);
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return ((this->extruder_override == 0) ? region.config().infill_extruder.value : this->extruder_override) - 1;
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}
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unsigned int LayerTools::solid_infill_extruder(const PrintRegion ®ion) const
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{
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assert(region.config().solid_infill_extruder.value > 0);
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return ((this->extruder_override == 0) ? region.config().solid_infill_extruder.value : this->extruder_override) - 1;
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}
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// Returns a zero based extruder this eec should be printed with, according to PrintRegion config or extruder_override if overriden.
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unsigned int LayerTools::extruder(const ExtrusionEntityCollection &extrusions, const PrintRegion ®ion) const
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{
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assert(region.config().perimeter_extruder.value > 0);
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assert(region.config().infill_extruder.value > 0);
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assert(region.config().solid_infill_extruder.value > 0);
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// 1 based extruder ID.
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unsigned int extruder = ((this->extruder_override == 0) ?
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(is_infill(extrusions.role()) ?
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(is_solid_infill(extrusions.entities.front()->role()) ? region.config().solid_infill_extruder : region.config().infill_extruder) :
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region.config().perimeter_extruder.value) :
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this->extruder_override);
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return (extruder == 0) ? 0 : extruder - 1;
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}
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// For the use case when each object is printed separately
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// (print.config().complete_objects is true).
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ToolOrdering::ToolOrdering(const PrintObject &object, unsigned int first_extruder, bool prime_multi_material)
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{
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if (object.layers().empty())
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return;
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// Initialize the print layers for just a single object.
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{
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std::vector<coordf_t> zs;
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zs.reserve(zs.size() + object.layers().size() + object.support_layers().size());
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for (auto layer : object.layers())
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zs.emplace_back(layer->print_z);
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for (auto layer : object.support_layers())
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zs.emplace_back(layer->print_z);
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this->initialize_layers(zs);
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}
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// Collect extruders reuqired to print the layers.
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this->collect_extruders(object, std::vector<std::pair<double, unsigned int>>());
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// Reorder the extruders to minimize tool switches.
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this->reorder_extruders(first_extruder);
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this->fill_wipe_tower_partitions(object.print()->config(), object.layers().front()->print_z - object.layers().front()->height, object.config().layer_height);
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this->collect_extruder_statistics(prime_multi_material);
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}
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// For the use case when all objects are printed at once.
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// (print.config().complete_objects is false).
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ToolOrdering::ToolOrdering(const Print &print, unsigned int first_extruder, bool prime_multi_material)
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{
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m_print_config_ptr = &print.config();
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// Initialize the print layers for all objects and all layers.
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coordf_t object_bottom_z = 0.;
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coordf_t max_layer_height = 0.;
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{
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std::vector<coordf_t> zs;
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for (auto object : print.objects()) {
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zs.reserve(zs.size() + object->layers().size() + object->support_layers().size());
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for (auto layer : object->layers())
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zs.emplace_back(layer->print_z);
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for (auto layer : object->support_layers())
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zs.emplace_back(layer->print_z);
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// Find first object layer that is not empty and save its print_z
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for (const Layer* layer : object->layers())
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if (layer->has_extrusions()) {
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object_bottom_z = layer->print_z - layer->height;
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break;
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}
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max_layer_height = std::max(max_layer_height, object->config().layer_height.value);
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}
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this->initialize_layers(zs);
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}
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// Use the extruder switches from Model::custom_gcode_per_print_z to override the extruder to print the object.
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// Do it only if all the objects were configured to be printed with a single extruder.
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std::vector<std::pair<double, unsigned int>> per_layer_extruder_switches;
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if (auto num_extruders = unsigned(print.config().nozzle_diameter.size());
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num_extruders > 1 && print.object_extruders().size() == 1 && // the current Print's configuration is CustomGCode::MultiAsSingle
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print.model().custom_gcode_per_print_z.mode == CustomGCode::MultiAsSingle) {
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// Printing a single extruder platter on a printer with more than 1 extruder (or single-extruder multi-material).
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// There may be custom per-layer tool changes available at the model.
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per_layer_extruder_switches = custom_tool_changes(print.model().custom_gcode_per_print_z, num_extruders);
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}
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// Collect extruders reuqired to print the layers.
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for (auto object : print.objects())
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this->collect_extruders(*object, per_layer_extruder_switches);
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// Reorder the extruders to minimize tool switches.
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this->reorder_extruders(first_extruder);
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this->fill_wipe_tower_partitions(print.config(), object_bottom_z, max_layer_height);
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this->collect_extruder_statistics(prime_multi_material);
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}
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void ToolOrdering::initialize_layers(std::vector<coordf_t> &zs)
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{
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sort_remove_duplicates(zs);
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// Merge numerically very close Z values.
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for (size_t i = 0; i < zs.size();) {
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// Find the last layer with roughly the same print_z.
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size_t j = i + 1;
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coordf_t zmax = zs[i] + EPSILON;
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for (; j < zs.size() && zs[j] <= zmax; ++ j) ;
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// Assign an average print_z to the set of layers with nearly equal print_z.
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m_layer_tools.emplace_back(LayerTools(0.5 * (zs[i] + zs[j-1])));
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i = j;
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}
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}
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// Collect extruders reuqired to print layers.
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void ToolOrdering::collect_extruders(const PrintObject &object, const std::vector<std::pair<double, unsigned int>> &per_layer_extruder_switches)
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{
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// Collect the support extruders.
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for (auto support_layer : object.support_layers()) {
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LayerTools &layer_tools = this->tools_for_layer(support_layer->print_z);
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ExtrusionRole role = support_layer->support_fills.role();
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bool has_support = role == erMixed || role == erSupportMaterial;
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bool has_interface = role == erMixed || role == erSupportMaterialInterface;
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unsigned int extruder_support = object.config().support_material_extruder.value;
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unsigned int extruder_interface = object.config().support_material_interface_extruder.value;
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if (has_support)
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layer_tools.extruders.push_back(extruder_support);
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if (has_interface)
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layer_tools.extruders.push_back(extruder_interface);
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if (has_support || has_interface)
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layer_tools.has_support = true;
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}
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// Extruder overrides are ordered by print_z.
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std::vector<std::pair<double, unsigned int>>::const_iterator it_per_layer_extruder_override;
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it_per_layer_extruder_override = per_layer_extruder_switches.begin();
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unsigned int extruder_override = 0;
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// Collect the object extruders.
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for (auto layer : object.layers()) {
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LayerTools &layer_tools = this->tools_for_layer(layer->print_z);
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// Override extruder with the next
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for (; it_per_layer_extruder_override != per_layer_extruder_switches.end() && it_per_layer_extruder_override->first < layer->print_z + EPSILON; ++ it_per_layer_extruder_override)
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extruder_override = (int)it_per_layer_extruder_override->second;
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// Store the current extruder override (set to zero if no overriden), so that layer_tools.wiping_extrusions().is_overridable_and_mark() will use it.
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layer_tools.extruder_override = extruder_override;
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// What extruders are required to print this object layer?
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for (size_t region_id = 0; region_id < object.region_volumes.size(); ++ region_id) {
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const LayerRegion *layerm = (region_id < layer->regions().size()) ? layer->regions()[region_id] : nullptr;
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if (layerm == nullptr)
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continue;
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const PrintRegion ®ion = *object.print()->regions()[region_id];
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if (! layerm->perimeters.entities.empty()) {
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bool something_nonoverriddable = true;
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if (m_print_config_ptr) { // in this case complete_objects is false (see ToolOrdering constructors)
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something_nonoverriddable = false;
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for (const auto& eec : layerm->perimeters.entities) // let's check if there are nonoverriddable entities
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if (!layer_tools.wiping_extrusions().is_overriddable_and_mark(dynamic_cast<const ExtrusionEntityCollection&>(*eec), *m_print_config_ptr, object, region))
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something_nonoverriddable = true;
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}
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if (something_nonoverriddable)
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layer_tools.extruders.emplace_back((extruder_override == 0) ? region.config().perimeter_extruder.value : extruder_override);
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layer_tools.has_object = true;
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}
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bool has_infill = false;
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bool has_solid_infill = false;
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bool something_nonoverriddable = false;
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for (const ExtrusionEntity *ee : layerm->fills.entities) {
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// fill represents infill extrusions of a single island.
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const auto *fill = dynamic_cast<const ExtrusionEntityCollection*>(ee);
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ExtrusionRole role = fill->entities.empty() ? erNone : fill->entities.front()->role();
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if (is_solid_infill(role))
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has_solid_infill = true;
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else if (role != erNone)
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has_infill = true;
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if (m_print_config_ptr) {
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if (! layer_tools.wiping_extrusions().is_overriddable_and_mark(*fill, *m_print_config_ptr, object, region))
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something_nonoverriddable = true;
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}
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}
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if (something_nonoverriddable || !m_print_config_ptr) {
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if (extruder_override == 0) {
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if (has_solid_infill)
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layer_tools.extruders.emplace_back(region.config().solid_infill_extruder);
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if (has_infill)
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layer_tools.extruders.emplace_back(region.config().infill_extruder);
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} else if (has_solid_infill || has_infill)
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layer_tools.extruders.emplace_back(extruder_override);
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}
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if (has_solid_infill || has_infill)
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layer_tools.has_object = true;
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}
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}
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for (auto& layer : m_layer_tools) {
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// Sort and remove duplicates
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sort_remove_duplicates(layer.extruders);
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// make sure that there are some tools for each object layer (e.g. tall wiping object will result in empty extruders vector)
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if (layer.extruders.empty() && layer.has_object)
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layer.extruders.emplace_back(0); // 0="dontcare" extruder - it will be taken care of in reorder_extruders
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}
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}
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// Reorder extruders to minimize layer changes.
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void ToolOrdering::reorder_extruders(unsigned int last_extruder_id)
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{
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if (m_layer_tools.empty())
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return;
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if (last_extruder_id == (unsigned int)-1) {
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// The initial print extruder has not been decided yet.
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// Initialize the last_extruder_id with the first non-zero extruder id used for the print.
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last_extruder_id = 0;
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for (size_t i = 0; i < m_layer_tools.size() && last_extruder_id == 0; ++ i) {
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const LayerTools < = m_layer_tools[i];
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for (unsigned int extruder_id : lt.extruders)
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if (extruder_id > 0) {
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last_extruder_id = extruder_id;
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break;
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}
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}
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if (last_extruder_id == 0)
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// Nothing to extrude.
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return;
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} else
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// 1 based index
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++ last_extruder_id;
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for (LayerTools < : m_layer_tools) {
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if (lt.extruders.empty())
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continue;
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if (lt.extruders.size() == 1 && lt.extruders.front() == 0)
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lt.extruders.front() = last_extruder_id;
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else {
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if (lt.extruders.front() == 0)
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// Pop the "don't care" extruder, the "don't care" region will be merged with the next one.
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lt.extruders.erase(lt.extruders.begin());
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// Reorder the extruders to start with the last one.
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for (size_t i = 1; i < lt.extruders.size(); ++ i)
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if (lt.extruders[i] == last_extruder_id) {
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// Move the last extruder to the front.
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memmove(lt.extruders.data() + 1, lt.extruders.data(), i * sizeof(unsigned int));
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lt.extruders.front() = last_extruder_id;
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break;
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}
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}
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last_extruder_id = lt.extruders.back();
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}
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// Reindex the extruders, so they are zero based, not 1 based.
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for (LayerTools < : m_layer_tools)
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for (unsigned int &extruder_id : lt.extruders) {
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assert(extruder_id > 0);
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-- extruder_id;
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}
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}
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void ToolOrdering::fill_wipe_tower_partitions(const PrintConfig &config, coordf_t object_bottom_z, coordf_t max_object_layer_height)
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{
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if (m_layer_tools.empty())
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return;
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// Count the minimum number of tool changes per layer.
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size_t last_extruder = size_t(-1);
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for (LayerTools < : m_layer_tools) {
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lt.wipe_tower_partitions = lt.extruders.size();
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if (! lt.extruders.empty()) {
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if (last_extruder == size_t(-1) || last_extruder == lt.extruders.front())
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// The first extruder on this layer is equal to the current one, no need to do an initial tool change.
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-- lt.wipe_tower_partitions;
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last_extruder = lt.extruders.back();
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}
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}
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// Propagate the wipe tower partitions down to support the upper partitions by the lower partitions.
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for (int i = int(m_layer_tools.size()) - 2; i >= 0; -- i)
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m_layer_tools[i].wipe_tower_partitions = std::max(m_layer_tools[i + 1].wipe_tower_partitions, m_layer_tools[i].wipe_tower_partitions);
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//FIXME this is a hack to get the ball rolling.
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for (LayerTools < : m_layer_tools)
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lt.has_wipe_tower = (lt.has_object && lt.wipe_tower_partitions > 0) || lt.print_z < object_bottom_z + EPSILON;
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// Test for a raft, insert additional wipe tower layer to fill in the raft separation gap.
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double max_layer_height = std::numeric_limits<double>::max();
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for (size_t i = 0; i < config.nozzle_diameter.values.size(); ++ i) {
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double mlh = config.max_layer_height.values[i];
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if (mlh == 0.)
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mlh = 0.75 * config.nozzle_diameter.values[i];
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max_layer_height = std::min(max_layer_height, mlh);
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}
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// The Prusa3D Fast (0.35mm layer height) print profile sets a higher layer height than what is normally allowed
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// by the nozzle. This is a hack and it works by increasing extrusion width.
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max_layer_height = std::max(max_layer_height, max_object_layer_height);
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for (size_t i = 0; i + 1 < m_layer_tools.size(); ++ i) {
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const LayerTools < = m_layer_tools[i];
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const LayerTools <_next = m_layer_tools[i + 1];
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if (lt.print_z < object_bottom_z + EPSILON && lt_next.print_z >= object_bottom_z + EPSILON) {
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// lt is the last raft layer. Find the 1st object layer.
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size_t j = i + 1;
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for (; j < m_layer_tools.size() && ! m_layer_tools[j].has_wipe_tower; ++ j);
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if (j < m_layer_tools.size()) {
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const LayerTools <_object = m_layer_tools[j];
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coordf_t gap = lt_object.print_z - lt.print_z;
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assert(gap > 0.f);
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if (gap > max_layer_height + EPSILON) {
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// Insert one additional wipe tower layer between lh.print_z and lt_object.print_z.
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LayerTools lt_new(0.5f * (lt.print_z + lt_object.print_z));
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// Find the 1st layer above lt_new.
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for (j = i + 1; j < m_layer_tools.size() && m_layer_tools[j].print_z < lt_new.print_z - EPSILON; ++ j);
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if (std::abs(m_layer_tools[j].print_z - lt_new.print_z) < EPSILON) {
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m_layer_tools[j].has_wipe_tower = true;
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} else {
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LayerTools <_extra = *m_layer_tools.insert(m_layer_tools.begin() + j, lt_new);
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//LayerTools <_prev = m_layer_tools[j];
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LayerTools <_next = m_layer_tools[j + 1];
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assert(! m_layer_tools[j - 1].extruders.empty() && ! lt_next.extruders.empty());
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// FIXME: Following assert tripped when running combine_infill.t. I decided to comment it out for now.
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// If it is a bug, it's likely not critical, because this code is unchanged for a long time. It might
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// still be worth looking into it more and decide if it is a bug or an obsolete assert.
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//assert(lt_prev.extruders.back() == lt_next.extruders.front());
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lt_extra.has_wipe_tower = true;
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lt_extra.extruders.push_back(lt_next.extruders.front());
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lt_extra.wipe_tower_partitions = lt_next.wipe_tower_partitions;
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}
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}
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}
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break;
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}
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}
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// If the model contains empty layers (such as https://github.com/prusa3d/Slic3r/issues/1266), there might be layers
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// that were not marked as has_wipe_tower, even when they should have been. This produces a crash with soluble supports
|
|
// and maybe other problems. We will therefore go through layer_tools and detect and fix this.
|
|
// So, if there is a non-object layer starting with different extruder than the last one ended with (or containing more than one extruder),
|
|
// we'll mark it with has_wipe tower.
|
|
assert(! m_layer_tools.empty() && m_layer_tools.front().has_wipe_tower);
|
|
if (! m_layer_tools.empty() && m_layer_tools.front().has_wipe_tower) {
|
|
for (size_t i = 0; i + 1 < m_layer_tools.size();) {
|
|
const LayerTools < = m_layer_tools[i];
|
|
assert(lt.has_wipe_tower);
|
|
assert(! lt.extruders.empty());
|
|
// Find the next layer with wipe tower or mark a layer as such.
|
|
size_t j = i + 1;
|
|
for (; j < m_layer_tools.size() && ! m_layer_tools[j].has_wipe_tower; ++ j) {
|
|
LayerTools <_next = m_layer_tools[j];
|
|
if (lt_next.extruders.empty()) {
|
|
//FIXME Vojtech: Lukasi, proc?
|
|
j = m_layer_tools.size();
|
|
break;
|
|
}
|
|
if (lt_next.extruders.front() != lt.extruders.back() || lt_next.extruders.size() > 1) {
|
|
// Support only layer, soluble layers? Otherwise the layer should have been already marked as having wipe tower.
|
|
assert(lt_next.has_support && ! lt_next.has_object);
|
|
lt_next.has_wipe_tower = true;
|
|
break;
|
|
}
|
|
}
|
|
if (j == m_layer_tools.size())
|
|
// No wipe tower above layer i, therefore no need to add any wipe tower layer above i.
|
|
break;
|
|
// We should also check that the next wipe tower layer is no further than max_layer_height.
|
|
// This algorith may in theory create very thin wipe layer j if layer closely below j is marked as wipe tower.
|
|
// This may happen if printing with non-soluble break away supports.
|
|
// On the other side it should not hurt as there will be no wipe, just perimeter and sparse infill printed
|
|
// at that particular wipe tower layer without extruder change.
|
|
double last_wipe_tower_print_z = lt.print_z;
|
|
assert(m_layer_tools[j].has_wipe_tower);
|
|
for (size_t k = i + 1; k < j; ++k) {
|
|
assert(! m_layer_tools[k].has_wipe_tower);
|
|
if (m_layer_tools[k + 1].print_z - last_wipe_tower_print_z > max_layer_height + EPSILON) {
|
|
m_layer_tools[k].has_wipe_tower = true;
|
|
last_wipe_tower_print_z = m_layer_tools[k].print_z;
|
|
}
|
|
}
|
|
i = j;
|
|
}
|
|
}
|
|
|
|
// Calculate the wipe_tower_layer_height values.
|
|
coordf_t wipe_tower_print_z_last = 0.;
|
|
for (LayerTools < : m_layer_tools)
|
|
if (lt.has_wipe_tower) {
|
|
lt.wipe_tower_layer_height = lt.print_z - wipe_tower_print_z_last;
|
|
wipe_tower_print_z_last = lt.print_z;
|
|
}
|
|
}
|
|
|
|
void ToolOrdering::collect_extruder_statistics(bool prime_multi_material)
|
|
{
|
|
m_first_printing_extruder = (unsigned int)-1;
|
|
for (const auto < : m_layer_tools)
|
|
if (! lt.extruders.empty()) {
|
|
m_first_printing_extruder = lt.extruders.front();
|
|
break;
|
|
}
|
|
|
|
m_last_printing_extruder = (unsigned int)-1;
|
|
for (auto lt_it = m_layer_tools.rbegin(); lt_it != m_layer_tools.rend(); ++ lt_it)
|
|
if (! lt_it->extruders.empty()) {
|
|
m_last_printing_extruder = lt_it->extruders.back();
|
|
break;
|
|
}
|
|
|
|
m_all_printing_extruders.clear();
|
|
for (const auto < : m_layer_tools) {
|
|
append(m_all_printing_extruders, lt.extruders);
|
|
sort_remove_duplicates(m_all_printing_extruders);
|
|
}
|
|
|
|
if (prime_multi_material && ! m_all_printing_extruders.empty()) {
|
|
// Reorder m_all_printing_extruders in the sequence they will be primed, the last one will be m_first_printing_extruder.
|
|
// Then set m_first_printing_extruder to the 1st extruder primed.
|
|
m_all_printing_extruders.erase(
|
|
std::remove_if(m_all_printing_extruders.begin(), m_all_printing_extruders.end(),
|
|
[ this ](const unsigned int eid) { return eid == m_first_printing_extruder; }),
|
|
m_all_printing_extruders.end());
|
|
m_all_printing_extruders.emplace_back(m_first_printing_extruder);
|
|
m_first_printing_extruder = m_all_printing_extruders.front();
|
|
}
|
|
}
|
|
|
|
// 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 ToolOrdering::assign_custom_gcodes(const Print &print)
|
|
{
|
|
// Only valid for non-sequential print.
|
|
assert(! print.config().complete_objects.value);
|
|
|
|
const CustomGCode::Info &custom_gcode_per_print_z = print.model().custom_gcode_per_print_z;
|
|
if (custom_gcode_per_print_z.gcodes.empty())
|
|
return;
|
|
|
|
auto num_extruders = unsigned(print.config().nozzle_diameter.size());
|
|
CustomGCode::Mode mode =
|
|
(num_extruders == 1) ? CustomGCode::SingleExtruder :
|
|
print.object_extruders().size() == 1 ? CustomGCode::MultiAsSingle : CustomGCode::MultiExtruder;
|
|
CustomGCode::Mode model_mode = print.model().custom_gcode_per_print_z.mode;
|
|
std::vector<unsigned char> extruder_printing_above(num_extruders, false);
|
|
auto custom_gcode_it = custom_gcode_per_print_z.gcodes.rbegin();
|
|
// Tool changes and color changes will be ignored, if the model's tool/color changes were entered in mm mode and the print is in non mm mode
|
|
// or vice versa.
|
|
bool ignore_tool_and_color_changes = (mode == CustomGCode::MultiExtruder) != (model_mode == CustomGCode::MultiExtruder);
|
|
// If printing on a single extruder machine, make the tool changes trigger color change (M600) events.
|
|
bool tool_changes_as_color_changes = mode == CustomGCode::SingleExtruder && model_mode == CustomGCode::MultiAsSingle;
|
|
|
|
// From the last layer to the first one:
|
|
for (auto it_lt = m_layer_tools.rbegin(); it_lt != m_layer_tools.rend(); ++ it_lt) {
|
|
LayerTools < = *it_lt;
|
|
// Add the extruders of the current layer to the set of extruders printing at and above this print_z.
|
|
for (unsigned int i : lt.extruders)
|
|
extruder_printing_above[i] = true;
|
|
// Skip all custom G-codes above this layer and skip all extruder switches.
|
|
for (; custom_gcode_it != custom_gcode_per_print_z.gcodes.rend() && (custom_gcode_it->print_z > lt.print_z + EPSILON || custom_gcode_it->gcode == ToolChangeCode); ++ custom_gcode_it);
|
|
if (custom_gcode_it == custom_gcode_per_print_z.gcodes.rend())
|
|
// Custom G-codes were processed.
|
|
break;
|
|
// Some custom G-code is configured for this layer or a layer below.
|
|
const CustomGCode::Item &custom_gcode = *custom_gcode_it;
|
|
// print_z of the layer below the current layer.
|
|
coordf_t print_z_below = 0.;
|
|
if (auto it_lt_below = it_lt; ++ it_lt_below != m_layer_tools.rend())
|
|
print_z_below = it_lt_below->print_z;
|
|
if (custom_gcode.print_z > print_z_below + 0.5 * EPSILON) {
|
|
// The custom G-code applies to the current layer.
|
|
bool color_change = custom_gcode.gcode == ColorChangeCode;
|
|
bool tool_change = custom_gcode.gcode == ToolChangeCode;
|
|
bool pause_or_custom_gcode = ! color_change && ! tool_change;
|
|
bool apply_color_change = ! ignore_tool_and_color_changes &&
|
|
// If it is color change, it will actually be useful as the exturder above will print.
|
|
(color_change ?
|
|
mode == CustomGCode::SingleExtruder ||
|
|
(custom_gcode.extruder <= int(num_extruders) && extruder_printing_above[unsigned(custom_gcode.extruder - 1)]) :
|
|
tool_change && tool_changes_as_color_changes);
|
|
if (pause_or_custom_gcode || apply_color_change)
|
|
lt.custom_gcode = &custom_gcode;
|
|
// Consume that custom G-code event.
|
|
++ custom_gcode_it;
|
|
}
|
|
}
|
|
}
|
|
|
|
const LayerTools& ToolOrdering::tools_for_layer(coordf_t print_z) const
|
|
{
|
|
auto it_layer_tools = std::lower_bound(m_layer_tools.begin(), m_layer_tools.end(), LayerTools(print_z - EPSILON));
|
|
assert(it_layer_tools != m_layer_tools.end());
|
|
coordf_t dist_min = std::abs(it_layer_tools->print_z - print_z);
|
|
for (++ it_layer_tools; it_layer_tools != m_layer_tools.end(); ++ it_layer_tools) {
|
|
coordf_t d = std::abs(it_layer_tools->print_z - print_z);
|
|
if (d >= dist_min)
|
|
break;
|
|
dist_min = d;
|
|
}
|
|
-- it_layer_tools;
|
|
assert(dist_min < EPSILON);
|
|
return *it_layer_tools;
|
|
}
|
|
|
|
// This function is called from Print::mark_wiping_extrusions and sets extruder this entity should be printed with (-1 .. as usual)
|
|
void WipingExtrusions::set_extruder_override(const ExtrusionEntity* entity, size_t copy_id, int extruder, size_t num_of_copies)
|
|
{
|
|
something_overridden = true;
|
|
|
|
auto entity_map_it = (entity_map.emplace(entity, ExtruderPerCopy())).first; // (add and) return iterator
|
|
ExtruderPerCopy& copies_vector = entity_map_it->second;
|
|
copies_vector.resize(num_of_copies, -1);
|
|
|
|
if (copies_vector[copy_id] != -1)
|
|
std::cout << "ERROR: Entity extruder overriden multiple times!!!\n"; // A debugging message - this must never happen.
|
|
|
|
copies_vector[copy_id] = extruder;
|
|
}
|
|
|
|
// Finds first non-soluble extruder on the layer
|
|
int WipingExtrusions::first_nonsoluble_extruder_on_layer(const PrintConfig& print_config) const
|
|
{
|
|
const LayerTools& lt = *m_layer_tools;
|
|
for (auto extruders_it = lt.extruders.begin(); extruders_it != lt.extruders.end(); ++extruders_it)
|
|
if (!print_config.filament_soluble.get_at(*extruders_it))
|
|
return (*extruders_it);
|
|
|
|
return (-1);
|
|
}
|
|
|
|
// Finds last non-soluble extruder on the layer
|
|
int WipingExtrusions::last_nonsoluble_extruder_on_layer(const PrintConfig& print_config) const
|
|
{
|
|
const LayerTools& lt = *m_layer_tools;
|
|
for (auto extruders_it = lt.extruders.rbegin(); extruders_it != lt.extruders.rend(); ++extruders_it)
|
|
if (!print_config.filament_soluble.get_at(*extruders_it))
|
|
return (*extruders_it);
|
|
|
|
return (-1);
|
|
}
|
|
|
|
// Decides whether this entity could be overridden
|
|
bool WipingExtrusions::is_overriddable(const ExtrusionEntityCollection& eec, const PrintConfig& print_config, const PrintObject& object, const PrintRegion& region) const
|
|
{
|
|
if (print_config.filament_soluble.get_at(m_layer_tools->extruder(eec, region)))
|
|
return false;
|
|
|
|
if (object.config().wipe_into_objects)
|
|
return true;
|
|
|
|
if (!region.config().wipe_into_infill || eec.role() != erInternalInfill)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
// Following function iterates through all extrusions on the layer, remembers those that could be used for wiping after toolchange
|
|
// and returns volume that is left to be wiped on the wipe tower.
|
|
float WipingExtrusions::mark_wiping_extrusions(const Print& print, unsigned int old_extruder, unsigned int new_extruder, float volume_to_wipe)
|
|
{
|
|
const LayerTools& lt = *m_layer_tools;
|
|
const float min_infill_volume = 0.f; // ignore infill with smaller volume than this
|
|
|
|
if (! this->something_overridable || volume_to_wipe <= 0. || print.config().filament_soluble.get_at(old_extruder) || print.config().filament_soluble.get_at(new_extruder))
|
|
return std::max(0.f, volume_to_wipe); // Soluble filament cannot be wiped in a random infill, neither the filament after it
|
|
|
|
// we will sort objects so that dedicated for wiping are at the beginning:
|
|
PrintObjectPtrs object_list = print.objects();
|
|
std::sort(object_list.begin(), object_list.end(), [](const PrintObject* a, const PrintObject* b) { return a->config().wipe_into_objects; });
|
|
|
|
// We will now iterate through
|
|
// - first the dedicated objects to mark perimeters or infills (depending on infill_first)
|
|
// - second through the dedicated ones again to mark infills or perimeters (depending on infill_first)
|
|
// - then all the others to mark infills (in case that !infill_first, we must also check that the perimeter is finished already
|
|
// this is controlled by the following variable:
|
|
bool perimeters_done = false;
|
|
|
|
for (int i=0 ; i<(int)object_list.size() + (perimeters_done ? 0 : 1); ++i) {
|
|
if (!perimeters_done && (i==(int)object_list.size() || !object_list[i]->config().wipe_into_objects)) { // we passed the last dedicated object in list
|
|
perimeters_done = true;
|
|
i=-1; // let's go from the start again
|
|
continue;
|
|
}
|
|
|
|
const PrintObject* object = object_list[i];
|
|
|
|
// Finds this layer:
|
|
const Layer* this_layer = object->get_layer_at_printz(lt.print_z, EPSILON);
|
|
if (this_layer == nullptr)
|
|
continue;
|
|
size_t num_of_copies = object->instances().size();
|
|
|
|
// iterate through copies (aka PrintObject instances) first, so that we mark neighbouring infills to minimize travel moves
|
|
for (unsigned int copy = 0; copy < num_of_copies; ++copy) {
|
|
|
|
for (size_t region_id = 0; region_id < object->region_volumes.size(); ++ region_id) {
|
|
const auto& region = *object->print()->regions()[region_id];
|
|
|
|
if (!region.config().wipe_into_infill && !object->config().wipe_into_objects)
|
|
continue;
|
|
|
|
bool wipe_into_infill_only = ! object->config().wipe_into_objects && region.config().wipe_into_infill;
|
|
if (print.config().infill_first != perimeters_done || wipe_into_infill_only) {
|
|
for (const ExtrusionEntity* ee : this_layer->regions()[region_id]->fills.entities) { // iterate through all infill Collections
|
|
auto* fill = dynamic_cast<const ExtrusionEntityCollection*>(ee);
|
|
|
|
if (!is_overriddable(*fill, print.config(), *object, region))
|
|
continue;
|
|
|
|
if (wipe_into_infill_only && ! print.config().infill_first)
|
|
// In this case we must check that the original extruder is used on this layer before the one we are overridding
|
|
// (and the perimeters will be finished before the infill is printed):
|
|
if (!lt.is_extruder_order(lt.perimeter_extruder(region), new_extruder))
|
|
continue;
|
|
|
|
if ((!is_entity_overridden(fill, copy) && fill->total_volume() > min_infill_volume)) { // this infill will be used to wipe this extruder
|
|
set_extruder_override(fill, copy, new_extruder, num_of_copies);
|
|
if ((volume_to_wipe -= float(fill->total_volume())) <= 0.f)
|
|
// More material was purged already than asked for.
|
|
return 0.f;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now the same for perimeters - see comments above for explanation:
|
|
if (object->config().wipe_into_objects && print.config().infill_first == perimeters_done)
|
|
{
|
|
for (const ExtrusionEntity* ee : this_layer->regions()[region_id]->perimeters.entities) {
|
|
auto* fill = dynamic_cast<const ExtrusionEntityCollection*>(ee);
|
|
if (is_overriddable(*fill, print.config(), *object, region) && !is_entity_overridden(fill, copy) && fill->total_volume() > min_infill_volume) {
|
|
set_extruder_override(fill, copy, new_extruder, num_of_copies);
|
|
if ((volume_to_wipe -= float(fill->total_volume())) <= 0.f)
|
|
// More material was purged already than asked for.
|
|
return 0.f;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Some purge remains to be done on the Wipe Tower.
|
|
assert(volume_to_wipe > 0.);
|
|
return volume_to_wipe;
|
|
}
|
|
|
|
|
|
|
|
// Called after all toolchanges on a layer were mark_infill_overridden. There might still be overridable entities,
|
|
// that were not actually overridden. If they are part of a dedicated object, printing them with the extruder
|
|
// they were initially assigned to might mean violating the perimeter-infill order. We will therefore go through
|
|
// them again and make sure we override it.
|
|
void WipingExtrusions::ensure_perimeters_infills_order(const Print& print)
|
|
{
|
|
if (! this->something_overridable)
|
|
return;
|
|
|
|
const LayerTools& lt = *m_layer_tools;
|
|
unsigned int first_nonsoluble_extruder = first_nonsoluble_extruder_on_layer(print.config());
|
|
unsigned int last_nonsoluble_extruder = last_nonsoluble_extruder_on_layer(print.config());
|
|
|
|
for (const PrintObject* object : print.objects()) {
|
|
// Finds this layer:
|
|
const Layer* this_layer = object->get_layer_at_printz(lt.print_z, EPSILON);
|
|
if (this_layer == nullptr)
|
|
continue;
|
|
size_t num_of_copies = object->instances().size();
|
|
|
|
for (size_t copy = 0; copy < num_of_copies; ++copy) { // iterate through copies first, so that we mark neighbouring infills to minimize travel moves
|
|
for (size_t region_id = 0; region_id < object->region_volumes.size(); ++ region_id) {
|
|
const auto& region = *object->print()->regions()[region_id];
|
|
|
|
if (!region.config().wipe_into_infill && !object->config().wipe_into_objects)
|
|
continue;
|
|
|
|
for (const ExtrusionEntity* ee : this_layer->regions()[region_id]->fills.entities) { // iterate through all infill Collections
|
|
auto* fill = dynamic_cast<const ExtrusionEntityCollection*>(ee);
|
|
|
|
if (!is_overriddable(*fill, print.config(), *object, region)
|
|
|| is_entity_overridden(fill, copy) )
|
|
continue;
|
|
|
|
// This infill could have been overridden but was not - unless we do something, it could be
|
|
// printed before its perimeter, or not be printed at all (in case its original extruder has
|
|
// not been added to LayerTools
|
|
// Either way, we will now force-override it with something suitable:
|
|
if (print.config().infill_first
|
|
|| object->config().wipe_into_objects // in this case the perimeter is overridden, so we can override by the last one safely
|
|
|| lt.is_extruder_order(lt.perimeter_extruder(region), last_nonsoluble_extruder // !infill_first, but perimeter is already printed when last extruder prints
|
|
|| ! lt.has_extruder(lt.infill_extruder(region)))) // we have to force override - this could violate infill_first (FIXME)
|
|
set_extruder_override(fill, copy, (print.config().infill_first ? first_nonsoluble_extruder : last_nonsoluble_extruder), num_of_copies);
|
|
else {
|
|
// In this case we can (and should) leave it to be printed normally.
|
|
// Force overriding would mean it gets printed before its perimeter.
|
|
}
|
|
}
|
|
|
|
// Now the same for perimeters - see comments above for explanation:
|
|
for (const ExtrusionEntity* ee : this_layer->regions()[region_id]->perimeters.entities) { // iterate through all perimeter Collections
|
|
auto* fill = dynamic_cast<const ExtrusionEntityCollection*>(ee);
|
|
if (is_overriddable(*fill, print.config(), *object, region) && ! is_entity_overridden(fill, copy))
|
|
set_extruder_override(fill, copy, (print.config().infill_first ? last_nonsoluble_extruder : first_nonsoluble_extruder), num_of_copies);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Following function is called from GCode::process_layer and returns pointer to vector with information about which extruders should be used for given copy of this entity.
|
|
// If this extrusion does not have any override, nullptr is returned.
|
|
// Otherwise it modifies the vector in place and changes all -1 to correct_extruder_id (at the time the overrides were created, correct extruders were not known,
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// so -1 was used as "print as usual").
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// The resulting vector therefore keeps track of which extrusions are the ones that were overridden and which were not. If the extruder used is overridden,
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// its number is saved as is (zero-based index). Regular extrusions are saved as -number-1 (unfortunately there is no negative zero).
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const WipingExtrusions::ExtruderPerCopy* WipingExtrusions::get_extruder_overrides(const ExtrusionEntity* entity, int correct_extruder_id, size_t num_of_copies)
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{
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ExtruderPerCopy *overrides = nullptr;
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auto entity_map_it = entity_map.find(entity);
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if (entity_map_it != entity_map.end()) {
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overrides = &entity_map_it->second;
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overrides->resize(num_of_copies, -1);
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// Each -1 now means "print as usual" - we will replace it with actual extruder id (shifted it so we don't lose that information):
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std::replace(overrides->begin(), overrides->end(), -1, -correct_extruder_id-1);
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}
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return overrides;
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}
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} // namespace Slic3r
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