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Improve performance by migrating to Clipper2 2.0.1 (#15969)

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Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
This commit is contained in:
Ian Bassi
2026-10-02 17:33:41 -03:00
committed by GitHub
co-authored by Rodrigo Faselli
parent 70bc02467b
commit 222c6a2df5
78 changed files with 3028 additions and 7038 deletions
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src/libslic3r/NSVGUtils.cpp
+9 -9
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@@ -500,26 +500,26 @@ Polylines to_dashes(const Polyline &polyline, const DashesParam& param)
HealedExPolygons stroke_to_expolygons(const LinesPath &lines_path, const NSVGshape &shape, const NSVGLineParams &param)
{
// convert stroke to polygon
ClipperLib::JoinType join_type = ClipperLib::JoinType::jtSquare;
JoinType join_type = jtSquare;
switch (static_cast<NSVGlineJoin>(shape.strokeLineJoin)) {
case NSVGlineJoin::NSVG_JOIN_BEVEL: join_type = ClipperLib::JoinType::jtSquare; break;
case NSVGlineJoin::NSVG_JOIN_MITER: join_type = ClipperLib::JoinType::jtMiter; break;
case NSVGlineJoin::NSVG_JOIN_ROUND: join_type = ClipperLib::JoinType::jtRound; break;
case NSVGlineJoin::NSVG_JOIN_BEVEL: join_type = jtSquare; break;
case NSVGlineJoin::NSVG_JOIN_MITER: join_type = jtMiter; break;
case NSVGlineJoin::NSVG_JOIN_ROUND: join_type = jtRound; break;
}
double mitter = shape.miterLimit * param.scale;
if (join_type == ClipperLib::JoinType::jtRound) {
if (join_type == jtRound) {
// mitter is used as ArcTolerance
// http://www.angusj.com/delphi/clipper/documentation/Docs/Units/ClipperLib/Classes/ClipperOffset/Properties/ArcTolerance.htm
mitter = std::pow(param.tesselation_tolerance, 1/3.);
}
float stroke_width = static_cast<float>(shape.strokeWidth * param.scale);
ClipperLib::EndType end_type = ClipperLib::EndType::etOpenButt;
EndType end_type = etOpenButt;
switch (static_cast<NSVGlineCap>(shape.strokeLineCap)) {
case NSVGlineCap::NSVG_CAP_BUTT: end_type = ClipperLib::EndType::etOpenButt; break;
case NSVGlineCap::NSVG_CAP_ROUND: end_type = ClipperLib::EndType::etOpenRound; break;
case NSVGlineCap::NSVG_CAP_SQUARE: end_type = ClipperLib::EndType::etOpenSquare; break;
case NSVGlineCap::NSVG_CAP_BUTT: end_type = etOpenButt; break;
case NSVGlineCap::NSVG_CAP_ROUND: end_type = etOpenRound; break;
case NSVGlineCap::NSVG_CAP_SQUARE: end_type = etOpenSquare; break;
}
Polygons result;