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#include "../ClipperUtils.hpp"
#include "../ExtrusionEntityCollection.hpp"
#include "../Surface.hpp"
#include <cmath>
#include <algorithm>
#include <iostream>
#include "FillSmooth.hpp"
namespace Slic3r {
Polylines FillSmooth::fill_surface(const Surface *surface, const FillParams ¶ms) const
{
//ERROR: you shouldn't call that. Default to the rectilinear one.
printf("FillSmooth::fill_surface() : you call the wrong method (fill_surface instead of fill_surface_extrusion).\n");
Polylines polylines_out;
return polylines_out;
}
/// @idx: the index of the step (0 = first step, 1 = second step, ...) The first lay down the volume and the others smoothen the surface.
void FillSmooth::perform_single_fill(const int idx, ExtrusionEntityCollection &eecroot, const Surface &srf_source,
const FillParams ¶ms) const {
if (srf_source.expolygon.empty()) return;
// Save into layer smoothing path.
ExtrusionEntityCollection *eec = new ExtrusionEntityCollection();
eec->set_can_sort_reverse(!params.monotonic, !params.monotonic);
FillParams params_modifided = params;
if (params.config != NULL && idx > 0) params_modifided.density /= (float)params.config->fill_smooth_width.get_abs_value(1);
else if (params.config != NULL && idx == 0) params_modifided.density *= 1;
else params_modifided.density *= (float)percentWidth[idx];
// reduce flow for each increase in density
params_modifided.flow_mult *= params.density;
params_modifided.flow_mult /= params_modifided.density;
// split the flow between steps
if (params.config != NULL && idx > 0) params_modifided.flow_mult *= (float)params.config->fill_smooth_distribution.get_abs_value(1);
else if (params.config != NULL && idx == 0) params_modifided.flow_mult *= (1.f - (float)params.config->fill_smooth_distribution.get_abs_value(1));
else params_modifided.flow_mult *= (float)percentFlow[idx];
//set role
if (rolePass[idx] != erNone)
params_modifided.role = rolePass[idx];
//choose if we are going to extrude with or without overlap
if ((params.flow.bridge && idx == 0) || has_overlap[idx] || this->no_overlap_expolygons.empty()){
this->fill_expolygon(idx, *eec, srf_source, params_modifided);
}
else{
Surface surfaceNoOverlap(srf_source);
//use half overlap instead of none.
ExPolygons half_overlap = offset_ex(this->no_overlap_expolygons, scale_(this->overlap / 2));
half_overlap = intersection_ex({ srf_source.expolygon }, half_overlap);
for (const ExPolygon &poly : half_overlap) {
if (poly.empty()) continue;
surfaceNoOverlap.expolygon = poly;
this->fill_expolygon(idx, *eec, surfaceNoOverlap, params_modifided);
}
}
if (eec->entities.empty()) delete eec;
else eecroot.entities.push_back(eec);
}
void FillSmooth::fill_expolygon(const int idx, ExtrusionEntityCollection &eec, const Surface &srf_to_fill,
const FillParams ¶ms_init) const {
FillParams params = params_init;
std::unique_ptr<Fill> f2 = std::unique_ptr<Fill>(Fill::new_from_type(fillPattern[idx]));
f2->bounding_box = this->bounding_box;
f2->init_spacing(this->get_spacing(), params);
f2->layer_id = this->layer_id;
f2->z = this->z;
f2->angle = anglePass[idx] + this->angle;
// Maximum length of the perimeter segment linking two infill lines.
f2->link_max_length = this->link_max_length;
// Used by the concentric infill pattern to clip the loops to create extrusion paths.
f2->loop_clipping = this->loop_clipping;
Polylines polylines_layer = f2->fill_surface(&srf_to_fill, params);
if (!polylines_layer.empty()) {
//get the role
ExtrusionRole good_role = params.role;
if (good_role == erNone || good_role == erCustom) {
good_role = params.flow.bridge && idx == 0 ? erBridgeInfill : rolePass[idx];
}
//get the flow
float mult_flow = 1;
if (params.fill_exactly && idx == 0) {
// compute the volume to extrude
double volume_to_occupy = compute_unscaled_volume_to_fill(&srf_to_fill, params);
//compute the path of the nozzle
double length_tot = 0;
int nb_lines = 0;
for (Polyline& pline : polylines_layer) {
Lines lines = pline.lines();
for (Line& line : lines) {
length_tot += unscaled(line.length());
nb_lines++;
}
}
//compute flow to remove spacing_ratio from the equation
double extruded_volume = 0;
if (params.flow.spacing_ratio < 1.f && !params.flow.bridge) {
// the spacing is larger than usual. get the flow from the current spacing
Flow test_flow = Flow::new_from_spacing(params.flow.spacing(), params.flow.nozzle_diameter, params.flow.height, 1, params.flow.bridge);
extruded_volume = test_flow.mm3_per_mm() * length_tot / params.density;
} else
extruded_volume = params.flow.mm3_per_mm() * length_tot / params.density;
if (extruded_volume == 0) extruded_volume = volume_to_occupy;
// print
mult_flow = (float)std::min(2., volume_to_occupy / extruded_volume);
BOOST_LOG_TRIVIAL(info) << "Layer " << layer_id << " Ironing process " << idx << " extrude " << extruded_volume << " mm3 for a volume of " << volume_to_occupy << " mm3 : we mult the flow by " << mult_flow;
}
extrusion_entities_append_paths(
eec.entities, std::move(polylines_layer),
good_role,
params.flow.mm3_per_mm() * params.flow_mult * mult_flow,
//min-reduced flow width for a better view (it's mostly a gui thing, but some support code can want to mess with it)
(float)(params.flow.width * (params.flow_mult* mult_flow < 0.1 ? 0.1 : params.flow_mult * mult_flow)), (float)params.flow.height);
}
}
void FillSmooth::fill_surface_extrusion(const Surface *surface, const FillParams ¶ms, ExtrusionEntitiesPtr &out) const
{
coordf_t init_spacing = this->get_spacing();
//create root node
ExtrusionEntityCollection *eecroot = new ExtrusionEntityCollection();
//you don't want to sort the extrusions: big infill first, small second
eecroot->set_can_sort_reverse(false, false);
// first infill
FillParams first_pass_params = params;
//if(first_pass_params.role != ExtrusionRole::erSupportMaterial && first_pass_params.role != ExtrusionRole::erSupportMaterialInterface)
//s first_pass_params.role = ExtrusionRole::erSolidInfill;
perform_single_fill(0, *eecroot, *surface, first_pass_params);
//use monotonic for ironing pass
FillParams monotonic_params = params;
monotonic_params.monotonic = true;
//second infill
if (nbPass > 1){
perform_single_fill(1, *eecroot, *surface, monotonic_params);
}
// third infill
if (nbPass > 2){
perform_single_fill(2, *eecroot, *surface, monotonic_params);
}
if (!eecroot->entities.empty())
out.push_back(eecroot);
else delete eecroot;
}
} // namespace Slic3r
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