void _clipper(ClipperLib::ClipType clipType, const Slic3r::Polygons &subject,
const Slic3r::Polygons &clip, Slic3r::Polygons* retval, bool safety_offset_)
{
// perform operation
ClipperLib::Paths output;
_clipper_do<ClipperLib::Paths>(clipType, subject, clip, &output, ClipperLib::pftNonZero, safety_offset_);
// convert into Polygons
ClipperPaths_to_Slic3rMultiPoints(output, retval);
}
void
offset(const Slic3r::Polygons &polygons, Slic3r::Polygons &retval, const float delta,
double scale, ClipperLib::JoinType joinType, double miterLimit)
{
// perform offset
ClipperLib::Paths output;
offset(polygons, output, delta, scale, joinType, miterLimit);
// convert into ExPolygons
ClipperPaths_to_Slic3rMultiPoints(output, retval);
}
void
offset2(const Slic3r::Polygons &polygons, Slic3r::Polygons* retval, const float delta1,
const float delta2, const ClipperLib::JoinType joinType, const double miterLimit)
{
// perform offset
ClipperLib::Paths output;
offset2(polygons, &output, delta1, delta2, joinType, miterLimit);
// convert into ExPolygons
ClipperPaths_to_Slic3rMultiPoints(output, retval);
}
void _clipper(ClipperLib::ClipType clipType, const Slic3r::Polylines &subject,
const Slic3r::Polygons &clip, Slic3r::Polylines &retval)
{
// perform operation
ClipperLib::PolyTree polytree;
_clipper_do(clipType, subject, clip, polytree, ClipperLib::pftNonZero);
// convert into Polygons
ClipperLib::Paths output;
ClipperLib::PolyTreeToPaths(polytree, output);
ClipperPaths_to_Slic3rMultiPoints(output, retval);
}
void
offset2(const Slic3r::Polygons &polygons, Slic3r::Polygons &retval, const float delta1,
const float delta2, const double scale, const ClipperLib::JoinType joinType, const double miterLimit)
{
// perform offset
ClipperLib::Paths* output = new ClipperLib::Paths();
offset2(polygons, *output, delta1, delta2, scale, joinType, miterLimit);
// convert into ExPolygons
ClipperPaths_to_Slic3rMultiPoints(*output, retval);
delete output;
}
Slic3r::Polygons offset(const Slic3r::ExPolygons &expolygons, const float delta,
ClipperLib::JoinType joinType, double miterLimit)
{
// perform offset
ClipperLib::Paths output;
offset(expolygons, &output, delta, joinType, miterLimit);
// convert into ExPolygons
Slic3r::Polygons retval;
ClipperPaths_to_Slic3rMultiPoints(output, &retval);
return retval;
}
void _clipper(ClipperLib::ClipType clipType, const Slic3r::Polylines &subject,
const Slic3r::Polygons &clip, Slic3r::Polylines* retval, bool safety_offset_)
{
PROFILE_FUNC();
// perform operation
ClipperLib::PolyTree polytree;
_clipper_do(clipType, subject, clip, &polytree, ClipperLib::pftNonZero, safety_offset_);
// convert into Polylines
ClipperLib::Paths output;
ClipperLib::PolyTreeToPaths(polytree, output);
ClipperPaths_to_Slic3rMultiPoints(output, retval);
}
void simplify_polygons(const Slic3r::Polygons &subject, Slic3r::Polygons &retval)
{
// convert into Clipper polygons
ClipperLib::Paths* input_subject = new ClipperLib::Paths();
Slic3rMultiPoints_to_ClipperPaths(subject, *input_subject);
ClipperLib::Paths* output = new ClipperLib::Paths();
ClipperLib::SimplifyPolygons(*input_subject, *output, ClipperLib::pftNonZero);
delete input_subject;
// convert into Slic3r polygons
ClipperPaths_to_Slic3rMultiPoints(*output, retval);
delete output;
}
void simplify_polygons(const Slic3r::Polygons &subject, Slic3r::Polygons* retval, bool preserve_collinear)
{
// convert into Clipper polygons
ClipperLib::Paths input_subject, output;
Slic3rMultiPoints_to_ClipperPaths(subject, &input_subject);
if (preserve_collinear) {
ClipperLib::Clipper c;
c.PreserveCollinear(true);
c.StrictlySimple(true);
c.AddPaths(input_subject, ClipperLib::ptSubject, true);
c.Execute(ClipperLib::ctUnion, output, ClipperLib::pftNonZero, ClipperLib::pftNonZero);
} else {
ClipperLib::SimplifyPolygons(input_subject, output, ClipperLib::pftNonZero);
}
// convert into Slic3r polygons
ClipperPaths_to_Slic3rMultiPoints(output, retval);
}
