Polygons
union_pt_chained(const Polygons &subject, bool safety_offset_)
{
ClipperLib::PolyTree polytree = union_pt(subject, safety_offset_);
Polygons retval;
traverse_pt(polytree.Childs, &retval);
return retval;
}
void union_pt_chained(const Slic3r::Polygons &subject, Slic3r::Polygons* retval, bool safety_offset_)
{
ClipperLib::PolyTree pt;
union_pt(subject, &pt, safety_offset_);
if (&subject == retval)
// It is safe to use the same variable for input and output, because this function makes
// a temporary copy of the results.
retval->clear();
traverse_pt(pt.Childs, retval);
}
void union_pt_chained(const Slic3r::Polygons &subject, Slic3r::Polygons &retval, bool safety_offset_)
{
ClipperLib::PolyTree pt;
union_pt(subject, pt, safety_offset_);
traverse_pt(pt.Childs, retval);
}
