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#609 fix a bug that can happens when (positive) offsetting with a big miter limit and two island merge

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supermerill 2020-10-29 00:03:13 +01:00
parent 491e49a2eb
commit b63d791685
1 changed files with 2 additions and 0 deletions
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src/libslic3r/Fill/FillRectilinear2.cpp
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@ -2768,6 +2768,8 @@ FillRectilinear2Peri::fill_surface_extrusion(const Surface *surface, const FillP
ExPolygons path_perimeter = offset2_ex(surface->expolygon,
scale_(-this->get_spacing()), scale_(this->get_spacing() / 2),
ClipperLib::jtMiter, scale_(this->get_spacing()) * 10);
//fix a bug that can happens when (positive) offsetting with a big miter limit and two island merge. See https://github.com/supermerill/SuperSlicer/issues/609
path_perimeter = intersection_ex(path_perimeter, offset_ex(surface->expolygon, scale_(-this->get_spacing() / 2)));
for (ExPolygon &expolygon : path_perimeter) {
expolygon.contour.make_counter_clockwise();
polylines_1.push_back(expolygon.contour.split_at_index(0));