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aab8a12801
ConcentricGapFill pattern was used for internal narrow solid infill. Use arachne engine instead to remove gap fill inside the pattern and improve the extrusion path Signed-off-by: salt.wei <salt.wei@bambulab.com> Change-Id: I758d7c72eb71cc37026b7cebf746cc345014c3f5 (cherry picked from commit 0b6bacd21a091afc13d7b36a69e5b10f155bc6f8)
683 lines
29 KiB
C++
683 lines
29 KiB
C++
#include <assert.h>
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#include <stdio.h>
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#include <memory>
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#include "../ClipperUtils.hpp"
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#include "../Geometry.hpp"
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#include "../Layer.hpp"
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#include "../Print.hpp"
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#include "../PrintConfig.hpp"
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#include "../Surface.hpp"
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#include "FillBase.hpp"
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#include "FillRectilinear.hpp"
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#include "FillConcentricInternal.hpp"
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#define NARROW_INFILL_AREA_THRESHOLD 3
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namespace Slic3r {
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struct SurfaceFillParams
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{
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// Zero based extruder ID.
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unsigned int extruder = 0;
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// Infill pattern, adjusted for the density etc.
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InfillPattern pattern = InfillPattern(0);
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// FillBase
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// in unscaled coordinates
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coordf_t spacing = 0.;
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// infill / perimeter overlap, in unscaled coordinates
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coordf_t overlap = 0.;
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// Angle as provided by the region config, in radians.
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float angle = 0.f;
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// Is bridging used for this fill? Bridging parameters may be used even if this->flow.bridge() is not set.
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bool bridge;
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// Non-negative for a bridge.
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float bridge_angle = 0.f;
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// FillParams
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float density = 0.f;
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// Don't adjust spacing to fill the space evenly.
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// bool dont_adjust = false;
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// Length of the infill anchor along the perimeter line.
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// 1000mm is roughly the maximum length line that fits into a 32bit coord_t.
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float anchor_length = 1000.f;
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float anchor_length_max = 1000.f;
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// width, height of extrusion, nozzle diameter, is bridge
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// For the output, for fill generator.
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Flow flow;
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// For the output
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ExtrusionRole extrusion_role = ExtrusionRole(0);
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// Various print settings?
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// Index of this entry in a linear vector.
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size_t idx = 0;
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bool operator<(const SurfaceFillParams &rhs) const {
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#define RETURN_COMPARE_NON_EQUAL(KEY) if (this->KEY < rhs.KEY) return true; if (this->KEY > rhs.KEY) return false;
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#define RETURN_COMPARE_NON_EQUAL_TYPED(TYPE, KEY) if (TYPE(this->KEY) < TYPE(rhs.KEY)) return true; if (TYPE(this->KEY) > TYPE(rhs.KEY)) return false;
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// Sort first by decreasing bridging angle, so that the bridges are processed with priority when trimming one layer by the other.
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if (this->bridge_angle > rhs.bridge_angle) return true;
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if (this->bridge_angle < rhs.bridge_angle) return false;
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RETURN_COMPARE_NON_EQUAL(extruder);
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RETURN_COMPARE_NON_EQUAL_TYPED(unsigned, pattern);
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RETURN_COMPARE_NON_EQUAL(spacing);
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RETURN_COMPARE_NON_EQUAL(overlap);
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RETURN_COMPARE_NON_EQUAL(angle);
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RETURN_COMPARE_NON_EQUAL(density);
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// RETURN_COMPARE_NON_EQUAL_TYPED(unsigned, dont_adjust);
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RETURN_COMPARE_NON_EQUAL(anchor_length);
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RETURN_COMPARE_NON_EQUAL(anchor_length_max);
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RETURN_COMPARE_NON_EQUAL(flow.width());
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RETURN_COMPARE_NON_EQUAL(flow.height());
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RETURN_COMPARE_NON_EQUAL(flow.nozzle_diameter());
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RETURN_COMPARE_NON_EQUAL_TYPED(unsigned, bridge);
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RETURN_COMPARE_NON_EQUAL_TYPED(unsigned, extrusion_role);
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return false;
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}
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bool operator==(const SurfaceFillParams &rhs) const {
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return this->extruder == rhs.extruder &&
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this->pattern == rhs.pattern &&
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this->spacing == rhs.spacing &&
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this->overlap == rhs.overlap &&
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this->angle == rhs.angle &&
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this->bridge == rhs.bridge &&
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// this->bridge_angle == rhs.bridge_angle &&
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this->density == rhs.density &&
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// this->dont_adjust == rhs.dont_adjust &&
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this->anchor_length == rhs.anchor_length &&
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this->anchor_length_max == rhs.anchor_length_max &&
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this->flow == rhs.flow &&
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this->extrusion_role == rhs.extrusion_role;
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}
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};
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struct SurfaceFill {
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SurfaceFill(const SurfaceFillParams& params) : region_id(size_t(-1)), surface(stCount, ExPolygon()), params(params) {}
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size_t region_id;
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Surface surface;
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ExPolygons expolygons;
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SurfaceFillParams params;
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};
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// BBS: used to judge whether the internal solid infill area is narrow
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static bool is_narrow_infill_area(const ExPolygon& expolygon)
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{
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ExPolygons offsets = offset_ex(expolygon, -scale_(NARROW_INFILL_AREA_THRESHOLD));
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if (offsets.empty())
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return true;
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return false;
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}
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std::vector<SurfaceFill> group_fills(const Layer &layer)
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{
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std::vector<SurfaceFill> surface_fills;
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// Fill in a map of a region & surface to SurfaceFillParams.
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std::set<SurfaceFillParams> set_surface_params;
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std::vector<std::vector<const SurfaceFillParams*>> region_to_surface_params(layer.regions().size(), std::vector<const SurfaceFillParams*>());
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SurfaceFillParams params;
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bool has_internal_voids = false;
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const PrintObjectConfig& object_config = layer.object()->config();
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for (size_t region_id = 0; region_id < layer.regions().size(); ++ region_id) {
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const LayerRegion &layerm = *layer.regions()[region_id];
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region_to_surface_params[region_id].assign(layerm.fill_surfaces.size(), nullptr);
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for (const Surface &surface : layerm.fill_surfaces.surfaces)
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if (surface.surface_type == stInternalVoid)
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has_internal_voids = true;
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else {
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const PrintRegionConfig ®ion_config = layerm.region().config();
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FlowRole extrusion_role = surface.is_top() ? frTopSolidInfill : (surface.is_solid() ? frSolidInfill : frInfill);
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bool is_bridge = layer.id() > 0 && surface.is_bridge();
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params.extruder = layerm.region().extruder(extrusion_role);
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params.pattern = region_config.sparse_infill_pattern.value;
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params.density = float(region_config.sparse_infill_density);
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if (surface.is_solid()) {
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params.density = 100.f;
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//FIXME for non-thick bridges, shall we allow a bottom surface pattern?
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params.pattern = (surface.is_external() && ! is_bridge) ?
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(surface.is_top() ? region_config.top_surface_pattern.value : region_config.bottom_surface_pattern.value) :
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region_config.top_surface_pattern == ipMonotonic ? ipMonotonic : ipRectilinear;
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} else if (params.density <= 0)
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continue;
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params.extrusion_role =
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is_bridge ?
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erBridgeInfill :
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(surface.is_solid() ?
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(surface.is_top() ? erTopSolidInfill : (surface.is_bottom()? erBottomSurface : erSolidInfill)) :
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erInternalInfill);
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params.bridge_angle = float(surface.bridge_angle);
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params.angle = float(Geometry::deg2rad(region_config.infill_direction.value));
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// Calculate the actual flow we'll be using for this infill.
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params.bridge = is_bridge || Fill::use_bridge_flow(params.pattern);
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params.flow = params.bridge ?
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//BBS: always enable thick bridge for internal bridge
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layerm.bridging_flow(extrusion_role, (surface.is_bridge() && !surface.is_external()) || object_config.thick_bridges) :
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layerm.flow(extrusion_role, (surface.thickness == -1) ? layer.height : surface.thickness);
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// Calculate flow spacing for infill pattern generation.
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if (surface.is_solid() || is_bridge) {
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params.spacing = params.flow.spacing();
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// Don't limit anchor length for solid or bridging infill.
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params.anchor_length = 1000.f;
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params.anchor_length_max = 1000.f;
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} else {
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// Internal infill. Calculating infill line spacing independent of the current layer height and 1st layer status,
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// so that internall infill will be aligned over all layers of the current region.
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params.spacing = layerm.region().flow(*layer.object(), frInfill, layer.object()->config().layer_height, false).spacing();
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// Anchor a sparse infill to inner perimeters with the following anchor length:
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params.anchor_length = float(Fill::infill_anchor * 0.01 * params.spacing);
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params.anchor_length_max = Fill::infill_anchor_max;
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params.anchor_length = std::min(params.anchor_length, params.anchor_length_max);
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}
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auto it_params = set_surface_params.find(params);
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if (it_params == set_surface_params.end())
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it_params = set_surface_params.insert(it_params, params);
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region_to_surface_params[region_id][&surface - &layerm.fill_surfaces.surfaces.front()] = &(*it_params);
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}
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}
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surface_fills.reserve(set_surface_params.size());
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for (const SurfaceFillParams ¶ms : set_surface_params) {
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const_cast<SurfaceFillParams&>(params).idx = surface_fills.size();
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surface_fills.emplace_back(params);
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}
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for (size_t region_id = 0; region_id < layer.regions().size(); ++ region_id) {
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const LayerRegion &layerm = *layer.regions()[region_id];
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for (const Surface &surface : layerm.fill_surfaces.surfaces)
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if (surface.surface_type != stInternalVoid) {
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const SurfaceFillParams *params = region_to_surface_params[region_id][&surface - &layerm.fill_surfaces.surfaces.front()];
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if (params != nullptr) {
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SurfaceFill &fill = surface_fills[params->idx];
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if (fill.region_id == size_t(-1)) {
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fill.region_id = region_id;
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fill.surface = surface;
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fill.expolygons.emplace_back(std::move(fill.surface.expolygon));
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} else
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fill.expolygons.emplace_back(surface.expolygon);
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}
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}
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}
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{
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Polygons all_polygons;
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for (SurfaceFill &fill : surface_fills)
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if (! fill.expolygons.empty()) {
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if (fill.expolygons.size() > 1 || ! all_polygons.empty()) {
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Polygons polys = to_polygons(std::move(fill.expolygons));
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// Make a union of polygons, use a safety offset, subtract the preceding polygons.
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// Bridges are processed first (see SurfaceFill::operator<())
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fill.expolygons = all_polygons.empty() ? union_safety_offset_ex(polys) : diff_ex(polys, all_polygons, ApplySafetyOffset::Yes);
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append(all_polygons, std::move(polys));
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} else if (&fill != &surface_fills.back())
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append(all_polygons, to_polygons(fill.expolygons));
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}
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}
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// we need to detect any narrow surfaces that might collapse
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// when adding spacing below
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// such narrow surfaces are often generated in sloping walls
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// by bridge_over_infill() and combine_infill() as a result of the
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// subtraction of the combinable area from the layer infill area,
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// which leaves small areas near the perimeters
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// we are going to grow such regions by overlapping them with the void (if any)
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// TODO: detect and investigate whether there could be narrow regions without
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// any void neighbors
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if (has_internal_voids) {
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// Internal voids are generated only if "infill_only_where_needed" or "infill_every_layers" are active.
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coord_t distance_between_surfaces = 0;
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Polygons surfaces_polygons;
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Polygons voids;
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int region_internal_infill = -1;
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int region_solid_infill = -1;
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int region_some_infill = -1;
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for (SurfaceFill &surface_fill : surface_fills)
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if (! surface_fill.expolygons.empty()) {
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distance_between_surfaces = std::max(distance_between_surfaces, surface_fill.params.flow.scaled_spacing());
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append((surface_fill.surface.surface_type == stInternalVoid) ? voids : surfaces_polygons, to_polygons(surface_fill.expolygons));
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if (surface_fill.surface.surface_type == stInternalSolid)
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region_internal_infill = (int)surface_fill.region_id;
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if (surface_fill.surface.is_solid())
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region_solid_infill = (int)surface_fill.region_id;
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if (surface_fill.surface.surface_type != stInternalVoid)
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region_some_infill = (int)surface_fill.region_id;
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}
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if (! voids.empty() && ! surfaces_polygons.empty()) {
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// First clip voids by the printing polygons, as the voids were ignored by the loop above during mutual clipping.
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voids = diff(voids, surfaces_polygons);
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// Corners of infill regions, which would not be filled with an extrusion path with a radius of distance_between_surfaces/2
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Polygons collapsed = diff(
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surfaces_polygons,
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opening(surfaces_polygons, float(distance_between_surfaces /2), float(distance_between_surfaces / 2 + ClipperSafetyOffset)));
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//FIXME why the voids are added to collapsed here? First it is expensive, second the result may lead to some unwanted regions being
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// added if two offsetted void regions merge.
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// polygons_append(voids, collapsed);
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ExPolygons extensions = intersection_ex(expand(collapsed, float(distance_between_surfaces)), voids, ApplySafetyOffset::Yes);
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// Now find an internal infill SurfaceFill to add these extrusions to.
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SurfaceFill *internal_solid_fill = nullptr;
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unsigned int region_id = 0;
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if (region_internal_infill != -1)
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region_id = region_internal_infill;
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else if (region_solid_infill != -1)
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region_id = region_solid_infill;
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else if (region_some_infill != -1)
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region_id = region_some_infill;
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const LayerRegion& layerm = *layer.regions()[region_id];
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for (SurfaceFill &surface_fill : surface_fills)
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if (surface_fill.surface.surface_type == stInternalSolid && std::abs(layer.height - surface_fill.params.flow.height()) < EPSILON) {
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internal_solid_fill = &surface_fill;
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break;
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}
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if (internal_solid_fill == nullptr) {
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// Produce another solid fill.
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params.extruder = layerm.region().extruder(frSolidInfill);
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params.pattern = layerm.region().config().top_surface_pattern == ipMonotonic ? ipMonotonic : ipRectilinear;
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params.density = 100.f;
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params.extrusion_role = erInternalInfill;
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params.angle = float(Geometry::deg2rad(layerm.region().config().infill_direction.value));
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// calculate the actual flow we'll be using for this infill
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params.flow = layerm.flow(frSolidInfill);
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params.spacing = params.flow.spacing();
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surface_fills.emplace_back(params);
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surface_fills.back().surface.surface_type = stInternalSolid;
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surface_fills.back().surface.thickness = layer.height;
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surface_fills.back().expolygons = std::move(extensions);
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} else {
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append(extensions, std::move(internal_solid_fill->expolygons));
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internal_solid_fill->expolygons = union_ex(extensions);
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}
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}
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}
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// BBS: detect narrow internal solid infill area and use ipConcentricInternal pattern instead
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if (layer.object()->config().detect_narrow_internal_solid_infill) {
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size_t surface_fills_size = surface_fills.size();
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for (size_t i = 0; i < surface_fills_size; i++) {
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if (surface_fills[i].surface.surface_type != stInternalSolid)
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continue;
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size_t expolygons_size = surface_fills[i].expolygons.size();
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std::vector<size_t> narrow_expolygons_index;
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narrow_expolygons_index.reserve(expolygons_size);
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// BBS: get the index list of narrow expolygon
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for (size_t j = 0; j < expolygons_size; j++)
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if (is_narrow_infill_area(surface_fills[i].expolygons[j]))
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narrow_expolygons_index.push_back(j);
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if (narrow_expolygons_index.size() == 0) {
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// BBS: has no narrow expolygon
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continue;
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}
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else if (narrow_expolygons_index.size() == expolygons_size) {
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// BBS: all expolygons are narrow, directly change the fill pattern
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surface_fills[i].params.pattern = ipConcentricInternal;
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}
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else {
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// BBS: some expolygons are narrow, spilit surface_fills[i] and rearrange the expolygons
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params = surface_fills[i].params;
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params.pattern = ipConcentricInternal;
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surface_fills.emplace_back(params);
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surface_fills.back().region_id = surface_fills[i].region_id;
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surface_fills.back().surface.surface_type = stInternalSolid;
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surface_fills.back().surface.thickness = surface_fills[i].surface.thickness;
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for (size_t j = 0; j < narrow_expolygons_index.size(); j++) {
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// BBS: move the narrow expolygons to new surface_fills.back();
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surface_fills.back().expolygons.emplace_back(std::move(surface_fills[i].expolygons[narrow_expolygons_index[j]]));
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}
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for (int j = narrow_expolygons_index.size() - 1; j >= 0; j--) {
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// BBS: delete the narrow expolygons from old surface_fills
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surface_fills[i].expolygons.erase(surface_fills[i].expolygons.begin() + narrow_expolygons_index[j]);
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}
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}
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}
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}
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return surface_fills;
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}
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#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
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void export_group_fills_to_svg(const char *path, const std::vector<SurfaceFill> &fills)
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{
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BoundingBox bbox;
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for (const auto &fill : fills)
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for (const auto &expoly : fill.expolygons)
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bbox.merge(get_extents(expoly));
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Point legend_size = export_surface_type_legend_to_svg_box_size();
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Point legend_pos(bbox.min(0), bbox.max(1));
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bbox.merge(Point(std::max(bbox.min(0) + legend_size(0), bbox.max(0)), bbox.max(1) + legend_size(1)));
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SVG svg(path, bbox);
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const float transparency = 0.5f;
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for (const auto &fill : fills)
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for (const auto &expoly : fill.expolygons)
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svg.draw(expoly, surface_type_to_color_name(fill.surface.surface_type), transparency);
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export_surface_type_legend_to_svg(svg, legend_pos);
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svg.Close();
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}
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#endif
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// friend to Layer
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void Layer::make_fills(FillAdaptive::Octree* adaptive_fill_octree, FillAdaptive::Octree* support_fill_octree)
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{
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for (LayerRegion *layerm : m_regions)
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layerm->fills.clear();
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#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
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// this->export_region_fill_surfaces_to_svg_debug("10_fill-initial");
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#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
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std::vector<SurfaceFill> surface_fills = group_fills(*this);
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const Slic3r::BoundingBox bbox = this->object()->bounding_box();
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const auto resolution = this->object()->print()->config().resolution.value;
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#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
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{
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static int iRun = 0;
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export_group_fills_to_svg(debug_out_path("Layer-fill_surfaces-10_fill-final-%d.svg", iRun ++).c_str(), surface_fills);
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}
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#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
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for (SurfaceFill &surface_fill : surface_fills) {
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// Create the filler object.
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std::unique_ptr<Fill> f = std::unique_ptr<Fill>(Fill::new_from_type(surface_fill.params.pattern));
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f->set_bounding_box(bbox);
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f->layer_id = this->id();
|
|
f->z = this->print_z;
|
|
f->angle = surface_fill.params.angle;
|
|
f->adapt_fill_octree = (surface_fill.params.pattern == ipSupportCubic) ? support_fill_octree : adaptive_fill_octree;
|
|
|
|
if (surface_fill.params.pattern == ipConcentricInternal) {
|
|
FillConcentricInternal *fill_concentric = dynamic_cast<FillConcentricInternal *>(f.get());
|
|
assert(fill_concentric != nullptr);
|
|
fill_concentric->print_config = &this->object()->print()->config();
|
|
fill_concentric->print_object_config = &this->object()->config();
|
|
}
|
|
|
|
// calculate flow spacing for infill pattern generation
|
|
bool using_internal_flow = ! surface_fill.surface.is_solid() && ! surface_fill.params.bridge;
|
|
double link_max_length = 0.;
|
|
if (! surface_fill.params.bridge) {
|
|
#if 0
|
|
link_max_length = layerm.region()->config().get_abs_value(surface.is_external() ? "external_fill_link_max_length" : "fill_link_max_length", flow.spacing());
|
|
// printf("flow spacing: %f, is_external: %d, link_max_length: %lf\n", flow.spacing(), int(surface.is_external()), link_max_length);
|
|
#else
|
|
if (surface_fill.params.density > 80.) // 80%
|
|
link_max_length = 3. * f->spacing;
|
|
#endif
|
|
}
|
|
|
|
// Maximum length of the perimeter segment linking two infill lines.
|
|
f->link_max_length = (coord_t)scale_(link_max_length);
|
|
// Used by the concentric infill pattern to clip the loops to create extrusion paths.
|
|
f->loop_clipping = coord_t(scale_(surface_fill.params.flow.nozzle_diameter()) * LOOP_CLIPPING_LENGTH_OVER_NOZZLE_DIAMETER);
|
|
|
|
// apply half spacing using this flow's own spacing and generate infill
|
|
FillParams params;
|
|
params.density = float(0.01 * surface_fill.params.density);
|
|
params.dont_adjust = false; // surface_fill.params.dont_adjust;
|
|
params.anchor_length = surface_fill.params.anchor_length;
|
|
params.anchor_length_max = surface_fill.params.anchor_length_max;
|
|
params.resolution = resolution;
|
|
|
|
// BBS
|
|
params.flow = surface_fill.params.flow;
|
|
params.extrusion_role = surface_fill.params.extrusion_role;
|
|
params.using_internal_flow = using_internal_flow;
|
|
params.no_extrusion_overlap = surface_fill.params.overlap;
|
|
|
|
LayerRegion* layerm = this->m_regions[surface_fill.region_id];
|
|
for (ExPolygon& expoly : surface_fill.expolygons) {
|
|
f->no_overlap_expolygons = intersection_ex(layerm->fill_no_overlap_expolygons, ExPolygons() = { expoly });
|
|
// Spacing is modified by the filler to indicate adjustments. Reset it for each expolygon.
|
|
f->spacing = surface_fill.params.spacing;
|
|
surface_fill.surface.expolygon = std::move(expoly);
|
|
// BBS: make fill
|
|
f->fill_surface_extrusion(&surface_fill.surface,
|
|
params,
|
|
m_regions[surface_fill.region_id]->fills.entities);
|
|
}
|
|
}
|
|
|
|
// add thin fill regions
|
|
// Unpacks the collection, creates multiple collections per path.
|
|
// The path type could be ExtrusionPath, ExtrusionLoop or ExtrusionEntityCollection.
|
|
// Why the paths are unpacked?
|
|
for (LayerRegion *layerm : m_regions)
|
|
for (const ExtrusionEntity *thin_fill : layerm->thin_fills.entities) {
|
|
ExtrusionEntityCollection &collection = *(new ExtrusionEntityCollection());
|
|
layerm->fills.entities.push_back(&collection);
|
|
collection.entities.push_back(thin_fill->clone());
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
for (LayerRegion *layerm : m_regions)
|
|
for (size_t i = 0; i < layerm->fills.entities.size(); ++ i)
|
|
assert(dynamic_cast<ExtrusionEntityCollection*>(layerm->fills.entities[i]) != nullptr);
|
|
#endif
|
|
}
|
|
|
|
// Create ironing extrusions over top surfaces.
|
|
void Layer::make_ironing()
|
|
{
|
|
// LayerRegion::slices contains surfaces marked with SurfaceType.
|
|
// Here we want to collect top surfaces extruded with the same extruder.
|
|
// A surface will be ironed with the same extruder to not contaminate the print with another material leaking from the nozzle.
|
|
|
|
// First classify regions based on the extruder used.
|
|
struct IroningParams {
|
|
int extruder = -1;
|
|
bool just_infill = false;
|
|
// Spacing of the ironing lines, also to calculate the extrusion flow from.
|
|
double line_spacing;
|
|
// Height of the extrusion, to calculate the extrusion flow from.
|
|
double height;
|
|
double speed;
|
|
double angle;
|
|
|
|
bool operator<(const IroningParams &rhs) const {
|
|
if (this->extruder < rhs.extruder)
|
|
return true;
|
|
if (this->extruder > rhs.extruder)
|
|
return false;
|
|
if (int(this->just_infill) < int(rhs.just_infill))
|
|
return true;
|
|
if (int(this->just_infill) > int(rhs.just_infill))
|
|
return false;
|
|
if (this->line_spacing < rhs.line_spacing)
|
|
return true;
|
|
if (this->line_spacing > rhs.line_spacing)
|
|
return false;
|
|
if (this->height < rhs.height)
|
|
return true;
|
|
if (this->height > rhs.height)
|
|
return false;
|
|
if (this->speed < rhs.speed)
|
|
return true;
|
|
if (this->speed > rhs.speed)
|
|
return false;
|
|
if (this->angle < rhs.angle)
|
|
return true;
|
|
if (this->angle > rhs.angle)
|
|
return false;
|
|
return false;
|
|
}
|
|
|
|
bool operator==(const IroningParams &rhs) const {
|
|
return this->extruder == rhs.extruder && this->just_infill == rhs.just_infill &&
|
|
this->line_spacing == rhs.line_spacing && this->height == rhs.height && this->speed == rhs.speed &&
|
|
this->angle == rhs.angle;
|
|
}
|
|
|
|
LayerRegion *layerm = nullptr;
|
|
|
|
// IdeaMaker: ironing
|
|
// ironing flowrate (5% percent)
|
|
// ironing speed (10 mm/sec)
|
|
|
|
// Kisslicer:
|
|
// iron off, Sweep, Group
|
|
// ironing speed: 15 mm/sec
|
|
|
|
// Cura:
|
|
// Pattern (zig-zag / concentric)
|
|
// line spacing (0.1mm)
|
|
// flow: from normal layer height. 10%
|
|
// speed: 20 mm/sec
|
|
};
|
|
|
|
std::vector<IroningParams> by_extruder;
|
|
double default_layer_height = this->object()->config().layer_height;
|
|
|
|
for (LayerRegion *layerm : m_regions)
|
|
if (! layerm->slices.empty()) {
|
|
IroningParams ironing_params;
|
|
const PrintRegionConfig &config = layerm->region().config();
|
|
if (config.ironing_type != IroningType::NoIroning &&
|
|
(config.ironing_type == IroningType::AllSolid ||
|
|
(config.top_shell_layers > 0 &&
|
|
(config.ironing_type == IroningType::TopSurfaces ||
|
|
(config.ironing_type == IroningType::TopmostOnly && layerm->layer()->upper_layer == nullptr))))) {
|
|
if (config.wall_filament == config.solid_infill_filament || config.wall_loops == 0) {
|
|
// Iron the whole face.
|
|
ironing_params.extruder = config.solid_infill_filament;
|
|
} else {
|
|
// Iron just the infill.
|
|
ironing_params.extruder = config.solid_infill_filament;
|
|
}
|
|
}
|
|
if (ironing_params.extruder != -1) {
|
|
//TODO just_infill is currently not used.
|
|
ironing_params.just_infill = false;
|
|
ironing_params.line_spacing = config.ironing_spacing;
|
|
ironing_params.height = default_layer_height * 0.01 * config.ironing_flow;
|
|
ironing_params.speed = config.ironing_speed;
|
|
ironing_params.angle = config.infill_direction * M_PI / 180.;
|
|
ironing_params.layerm = layerm;
|
|
by_extruder.emplace_back(ironing_params);
|
|
}
|
|
}
|
|
std::sort(by_extruder.begin(), by_extruder.end());
|
|
|
|
FillRectilinear fill;
|
|
FillParams fill_params;
|
|
fill.set_bounding_box(this->object()->bounding_box());
|
|
fill.layer_id = this->id();
|
|
fill.z = this->print_z;
|
|
fill.overlap = 0;
|
|
fill_params.density = 1.;
|
|
fill_params.monotonic = true;
|
|
|
|
for (size_t i = 0; i < by_extruder.size();) {
|
|
// Find span of regions equivalent to the ironing operation.
|
|
IroningParams &ironing_params = by_extruder[i];
|
|
size_t j = i;
|
|
for (++ j; j < by_extruder.size() && ironing_params == by_extruder[j]; ++ j) ;
|
|
|
|
// Create the ironing extrusions for regions <i, j)
|
|
ExPolygons ironing_areas;
|
|
double nozzle_dmr = this->object()->print()->config().nozzle_diameter.get_at(ironing_params.extruder - 1);
|
|
if (ironing_params.just_infill) {
|
|
//TODO just_infill is currently not used.
|
|
// Just infill.
|
|
} else {
|
|
// Infill and perimeter.
|
|
// Merge top surfaces with the same ironing parameters.
|
|
Polygons polys;
|
|
Polygons infills;
|
|
for (size_t k = i; k < j; ++ k) {
|
|
const IroningParams &ironing_params = by_extruder[k];
|
|
const PrintRegionConfig ®ion_config = ironing_params.layerm->region().config();
|
|
bool iron_everything = region_config.ironing_type == IroningType::AllSolid;
|
|
bool iron_completely = iron_everything;
|
|
if (iron_everything) {
|
|
// Check whether there is any non-solid hole in the regions.
|
|
bool internal_infill_solid = region_config.sparse_infill_density.value > 95.;
|
|
for (const Surface &surface : ironing_params.layerm->fill_surfaces.surfaces)
|
|
if ((! internal_infill_solid && surface.surface_type == stInternal) || surface.surface_type == stInternalBridge || surface.surface_type == stInternalVoid) {
|
|
// Some fill region is not quite solid. Don't iron over the whole surface.
|
|
iron_completely = false;
|
|
break;
|
|
}
|
|
}
|
|
if (iron_completely) {
|
|
// Iron everything. This is likely only good for solid transparent objects.
|
|
for (const Surface &surface : ironing_params.layerm->slices.surfaces)
|
|
polygons_append(polys, surface.expolygon);
|
|
} else {
|
|
for (const Surface &surface : ironing_params.layerm->slices.surfaces)
|
|
if (surface.surface_type == stTop || (iron_everything && surface.surface_type == stBottom))
|
|
// stBottomBridge is not being ironed on purpose, as it would likely destroy the bridges.
|
|
polygons_append(polys, surface.expolygon);
|
|
}
|
|
if (iron_everything && ! iron_completely) {
|
|
// Add solid fill surfaces. This may not be ideal, as one will not iron perimeters touching these
|
|
// solid fill surfaces, but it is likely better than nothing.
|
|
for (const Surface &surface : ironing_params.layerm->fill_surfaces.surfaces)
|
|
if (surface.surface_type == stInternalSolid)
|
|
polygons_append(infills, surface.expolygon);
|
|
}
|
|
}
|
|
|
|
if (! infills.empty() || j > i + 1) {
|
|
// Ironing over more than a single region or over solid internal infill.
|
|
if (! infills.empty())
|
|
// For IroningType::AllSolid only:
|
|
// Add solid infill areas for layers, that contain some non-ironable infil (sparse infill, bridge infill).
|
|
append(polys, std::move(infills));
|
|
polys = union_safety_offset(polys);
|
|
}
|
|
// Trim the top surfaces with half the nozzle diameter.
|
|
ironing_areas = intersection_ex(polys, offset(this->lslices, - float(scale_(0.5 * nozzle_dmr))));
|
|
}
|
|
|
|
// Create the filler object.
|
|
fill.spacing = ironing_params.line_spacing;
|
|
fill.angle = float(ironing_params.angle + 0.25 * M_PI);
|
|
fill.link_max_length = (coord_t)scale_(3. * fill.spacing);
|
|
double extrusion_height = ironing_params.height * fill.spacing / nozzle_dmr;
|
|
float extrusion_width = Flow::rounded_rectangle_extrusion_width_from_spacing(float(nozzle_dmr), float(extrusion_height));
|
|
double flow_mm3_per_mm = nozzle_dmr * extrusion_height;
|
|
Surface surface_fill(stTop, ExPolygon());
|
|
for (ExPolygon &expoly : ironing_areas) {
|
|
surface_fill.expolygon = std::move(expoly);
|
|
Polylines polylines;
|
|
try {
|
|
polylines = fill.fill_surface(&surface_fill, fill_params);
|
|
} catch (InfillFailedException &) {
|
|
}
|
|
if (! polylines.empty()) {
|
|
// Save into layer.
|
|
ExtrusionEntityCollection *eec = nullptr;
|
|
ironing_params.layerm->fills.entities.push_back(eec = new ExtrusionEntityCollection());
|
|
// Don't sort the ironing infill lines as they are monotonicly ordered.
|
|
eec->no_sort = true;
|
|
extrusion_entities_append_paths(
|
|
eec->entities, std::move(polylines),
|
|
erIroning,
|
|
flow_mm3_per_mm, extrusion_width, float(extrusion_height));
|
|
}
|
|
}
|
|
|
|
// Regions up to j were processed.
|
|
i = j;
|
|
}
|
|
}
|
|
|
|
} // namespace Slic3r
|