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New sparse infill: "stars" - David's star shaped infill.

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This is very similar to a "triangles" infill, but maximum two lines
intersect at a single point.

added utility function get_extents_vector()
This commit is contained in:
bubnikv 2016-11-09 15:39:12 +01:00
parent eb0ab38618
commit 317e9131e8
10 changed files with 52 additions and 3 deletions
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16
xs/src/libslic3r/Fill/FillRectilinear2.cpp
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@ -1517,12 +1517,26 @@ Polylines FillTriangles::fill_surface(const Surface *surface, const FillParams &
Polylines polylines_out;
if (! fill_surface_by_lines(surface, params2, 0.f, 0., polylines_out) ||
! fill_surface_by_lines(surface, params2, float(M_PI / 3.), 0., polylines_out) ||
! fill_surface_by_lines(surface, params2, float(2. * M_PI / 3.), 0., polylines_out)) {
! fill_surface_by_lines(surface, params2, float(2. * M_PI / 3.), 0.5 * this->spacing / params2.density, polylines_out)) {
printf("FillTriangles::fill_surface() failed to fill a region.\n");
}
return polylines_out;
}
Polylines FillStars::fill_surface(const Surface *surface, const FillParams &params)
{
// Each linear fill covers 1/3 of the target coverage.
FillParams params2 = params;
params2.density *= 0.333333333f;
Polylines polylines_out;
if (! fill_surface_by_lines(surface, params2, 0.f, 0., polylines_out) ||
! fill_surface_by_lines(surface, params2, float(M_PI / 3.), 0., polylines_out) ||
! fill_surface_by_lines(surface, params2, float(2. * M_PI / 3.), 0., polylines_out)) {
printf("FillStars::fill_surface() failed to fill a region.\n");
}
return polylines_out;
}
Polylines FillCubic::fill_surface(const Surface *surface, const FillParams &params)
{
// Each linear fill covers 1/3 of the target coverage.