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.

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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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src/libslic3r/ClipperUtils.cpp

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