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Clipper optimization:

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1) Removed the already commented-out scaling / unscaling when doing
   "safe offsetting"
2) Removed some of the "safe offsetting" at calls where it never was used.
3) Reworked Clipper & ClipperUtils to pass Polygons / ExPolygons / Surfaces
   as input parameters without conversion to ClipperLib::Paths. This
   should save a lot of memory allocation and copying.
4) Reworked conversions from ClipperLib::Paths & PolyTree to Polygons /
   ExPolygons to use the move operator to avoid many unnecessary allocations.
5) Reworked some "union with safe ofsetting" to "offset_ex", which should
   be cheaper.
This commit is contained in:
Vojtech Bubnik
2021-04-30 11:49:57 +02:00
parent b327314b02
commit 9fbba855ef
15 changed files with 616 additions and 722 deletions
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2
src/libslic3r/Layer.cpp
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@@ -185,7 +185,7 @@ void Layer::make_perimeters()
}
// merge the surfaces assigned to each group
for (std::pair<const unsigned short,Surfaces> &surfaces_with_extra_perimeters : slices)
new_slices.append(offset_ex(to_expolygons(surfaces_with_extra_perimeters.second), 10.f), surfaces_with_extra_perimeters.second.front());
new_slices.append(offset_ex(to_expolygons(surfaces_with_extra_perimeters.second), ClipperSafetyOffset), surfaces_with_extra_perimeters.second.front());
}
// make perimeters