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Add "2D Lattice" fill pattern for lightweight aircraft structures (#8293)

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* Add 2D lattice infill pattern

* Add state invalidation behavior for lattice infill angles

* Update SurfaceFillParams methods to account for lattice infill angles

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>
Co-authored-by: Noisyfox <timemanager.rick@gmail.com>
This commit is contained in:
Eric Maglio 2025-02-11 16:39:29 -08:00 • committed by GitHub
parent c21b044a9c
commit 5145707801
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13 changed files with 89 additions and 5 deletions
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17
src/libslic3r/Fill/FillRectilinear.cpp
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@ -3002,6 +3002,23 @@ Polylines FillGrid::fill_surface(const Surface *surface, const FillParams &param
return polylines_out;
}
Polylines Fill2DLattice::fill_surface(const Surface *surface, const FillParams &params)
{
Polylines polylines_out;
coordf_t dx1 = tan(Geometry::deg2rad(params.lattice_angle_1)) * z;
coordf_t dx2 = tan(Geometry::deg2rad(params.lattice_angle_2)) * z;
if (! this->fill_surface_by_multilines(
surface, params,
{ { float(M_PI / 2.), float(dx1) }, { float(M_PI / 2.), float(dx2) } },
polylines_out))
BOOST_LOG_TRIVIAL(error) << "Fill2DLattice::fill_surface() failed to fill a region.";
if (this->layer_id % 2 == 1)
for (int i = 0; i < polylines_out.size(); i++)
std::reverse(polylines_out[i].begin(), polylines_out[i].end());
return polylines_out;
}
Polylines FillTriangles::fill_surface(const Surface *surface, const FillParams &params)
{
Polylines polylines_out;