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optimize cross hatch infill to enchance strength (#5495)

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Optimize the cross-hatch infill pattern to improve strength when low infill density is used.
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SoftFever 2024-05-29 23:03:47 +08:00 • committed by GitHub
parent c14ae13788
commit 8b1bf13021
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1 changed files with 7 additions and 1 deletions
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8
src/libslic3r/Fill/FillCrossHatch.cpp
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@ -1,6 +1,7 @@
#include "../ClipperUtils.hpp" #include "../ClipperUtils.hpp"
#include "../ShortestPath.hpp" #include "../ShortestPath.hpp"
#include "../Surface.hpp" #include "../Surface.hpp"
#include <cmath>
#include "FillCrossHatch.hpp" #include "FillCrossHatch.hpp"
@ -193,7 +194,12 @@ void FillCrossHatch ::_fill_surface_single(
bb.merge(align_to_grid(bb.min, Point(line_spacing * 4, line_spacing * 4))); bb.merge(align_to_grid(bb.min, Point(line_spacing * 4, line_spacing * 4)));
// generate pattern // generate pattern
Polylines polylines = generate_infill_layers(scale_(this->z), 1, line_spacing, bb.size()(0), bb.size()(1)); //Orca: optimize the cross-hatch infill pattern to improve strength when low infill density is used.
double repeat_ratio = 1.0;
if (params.density < 0.3)
repeat_ratio = std::clamp(1.0 - std::exp(-5 * params.density), 0.2, 1.0);
Polylines polylines = generate_infill_layers(scale_(this->z), repeat_ratio, line_spacing, bb.size()(0), bb.size()(1));
// shift the pattern to the actual space // shift the pattern to the actual space
for (Polyline &pl : polylines) { pl.translate(bb.min); } for (Polyline &pl : polylines) { pl.translate(bb.min); }