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Further rework of ClipperUtils: Replaced many to_polygons() /

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to_expolygons() calls with templated ClipperUtils variants to avoid
memory allocation and copying.
This commit is contained in:
Vojtech Bubnik 2021-05-03 11:39:53 +02:00
parent 9fbba855ef
commit 09a80d954c
22 changed files with 437 additions and 398 deletions
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10
src/libslic3r/Layer.cpp
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@ -39,11 +39,11 @@ void Layer::make_slices()
ExPolygons slices;
if (m_regions.size() == 1) {
// optimization: if we only have one region, take its slices
slices = m_regions.front()->slices;
slices = to_expolygons(m_regions.front()->slices.surfaces);
} else {
Polygons slices_p;
for (LayerRegion *layerm : m_regions)
polygons_append(slices_p, to_polygons(layerm->slices));
polygons_append(slices_p, to_polygons(layerm->slices.surfaces));
slices = union_ex(slices_p);
}
@ -105,7 +105,7 @@ ExPolygons Layer::merged(float offset_scaled) const
const PrintRegionConfig &config = layerm->region()->config();
// Our users learned to bend Slic3r to produce empty volumes to act as subtracters. Only add the region if it is non-empty.
if (config.bottom_solid_layers > 0 || config.top_solid_layers > 0 || config.fill_density > 0. || config.perimeters > 0)
append(polygons, offset(to_expolygons(layerm->slices.surfaces), offset_scaled));
append(polygons, offset(layerm->slices.surfaces, offset_scaled));
}
ExPolygons out = union_ex(polygons);
if (offset_scaled2 != 0.f)
@ -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), ClipperSafetyOffset), surfaces_with_extra_perimeters.second.front());
new_slices.append(offset_ex(surfaces_with_extra_perimeters.second, ClipperSafetyOffset), surfaces_with_extra_perimeters.second.front());
}
// make perimeters
@ -196,7 +196,7 @@ void Layer::make_perimeters()
if (!fill_surfaces.surfaces.empty()) {
for (LayerRegionPtrs::iterator l = layerms.begin(); l != layerms.end(); ++l) {
// Separate the fill surfaces.
ExPolygons expp = intersection_ex(to_polygons(fill_surfaces), (*l)->slices);
ExPolygons expp = intersection_ex(fill_surfaces.surfaces, (*l)->slices.surfaces);
(*l)->fill_expolygons = expp;
(*l)->fill_surfaces.set(std::move(expp), fill_surfaces.surfaces.front());
}