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ENH: add arachne engine for narrow internal solid infill

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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)
This commit is contained in:
salt.wei 2022-08-10 16:11:39 +08:00 • committed by Lane.Wei
parent cbefb77de3
commit aab8a12801
54 changed files with 7922 additions and 30 deletions
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14
src/libslic3r/Fill/Fill.cpp
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@ -11,6 +11,7 @@
#include "FillBase.hpp"
#include "FillRectilinear.hpp"
#include "FillConcentricInternal.hpp"
#define NARROW_INFILL_AREA_THRESHOLD 3
@ -303,7 +304,7 @@ std::vector<SurfaceFill> group_fills(const Layer &layer)
}
}
// BBS: detect narrow internal solid infill area and use ipConcentricGapFill pattern instead
// BBS: detect narrow internal solid infill area and use ipConcentricInternal pattern instead
if (layer.object()->config().detect_narrow_internal_solid_infill) {
size_t surface_fills_size = surface_fills.size();
for (size_t i = 0; i < surface_fills_size; i++) {
@ -324,12 +325,12 @@ std::vector<SurfaceFill> group_fills(const Layer &layer)
}
else if (narrow_expolygons_index.size() == expolygons_size) {
// BBS: all expolygons are narrow, directly change the fill pattern
surface_fills[i].params.pattern = ipConcentricGapFill;
surface_fills[i].params.pattern = ipConcentricInternal;
}
else {
// BBS: some expolygons are narrow, spilit surface_fills[i] and rearrange the expolygons
params = surface_fills[i].params;
params.pattern = ipConcentricGapFill;
params.pattern = ipConcentricInternal;
surface_fills.emplace_back(params);
surface_fills.back().region_id = surface_fills[i].region_id;
surface_fills.back().surface.surface_type = stInternalSolid;
@ -401,6 +402,13 @@ void Layer::make_fills(FillAdaptive::Octree* adaptive_fill_octree, FillAdaptive:
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.;