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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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1
xs/src/libslic3r/Fill/FillBase.cpp
View file

@ -25,6 +25,7 @@ Fill* Fill::new_from_type(const InfillPattern type)
case ipLine: return new FillLine();
case ipGrid: return new FillGrid2();
case ipTriangles: return new FillTriangles();
case ipStars: return new FillStars();
case ipCubic: return new FillCubic();
// case ipGrid: return new FillGrid();
case ipArchimedeanChords: return new FillArchimedeanChords();

2
xs/src/libslic3r/Fill/FillBase.hpp
View file

@ -49,7 +49,7 @@ public:
// in radians, ccw, 0 = East
float angle;
// In scaled coordinates. Maximum lenght of a perimeter segment connecting two infill lines.
// Used by the FillRectilinear2, FillGrid2, FillTriangles and FillCubic.
// Used by the FillRectilinear2, FillGrid2, FillTriangles, FillStars and FillCubic.
// If left to zero, the links will not be limited.
coord_t link_max_length;
// In scaled coordinates. Used by the concentric infill pattern to clip the loops to create extrusion paths.

16
xs/src/libslic3r/Fill/FillRectilinear2.cpp
View file

@ -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.

11
xs/src/libslic3r/Fill/FillRectilinear2.hpp
View file

@ -41,6 +41,17 @@ protected:
virtual float _layer_angle(size_t idx) const { return 0.f; }
};
class FillStars : public FillRectilinear2
{
public:
virtual ~FillStars() {}
virtual Polylines fill_surface(const Surface *surface, const FillParams &params);
protected:
// The grid fill will keep the angle constant between the layers, see the implementation of Slic3r::Fill.
virtual float _layer_angle(size_t idx) const { return 0.f; }
};
class FillCubic : public FillRectilinear2
{
public: