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ENH: speed up one wall top generate

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Signed-off-by: qing.zhang <qing.zhang@bambulab.com>
Change-Id: I141565bea3ca4d3fbcc9569b175af5d4f5cdd40e
This commit is contained in:
qing.zhang 2023-03-08 15:10:57 +08:00 • committed by Lane.Wei
parent 246ff2653d
commit 0cc953ad41
3 changed files with 28 additions and 4 deletions
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12
src/libslic3r/ClipperUtils.cpp
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@ -147,6 +147,18 @@ void clip_clipper_polygon_with_subject_bbox(const Polygon &src, const BoundingBo
out.erase(std::remove_if(out.begin(), out.end(), [](const Polygon &polygon) { return polygon.empty(); }), out.end()); out.erase(std::remove_if(out.begin(), out.end(), [](const Polygon &polygon) { return polygon.empty(); }), out.end());
return out; return out;
} }
[[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const ExPolygons &src, const BoundingBox &bbox)
{
Polygons out;
out.reserve(number_polygons(src));
for (const ExPolygon &p : src) {
Polygons temp = clip_clipper_polygons_with_subject_bbox(p, bbox);
out.insert(out.end(), temp.begin(), temp.end());
}
out.erase(std::remove_if(out.begin(), out.end(), [](const Polygon &polygon) {return polygon.empty(); }), out.end());
return out;
}
} }
static ExPolygons PolyTreeToExPolygons(ClipperLib::PolyTree &&polytree) static ExPolygons PolyTreeToExPolygons(ClipperLib::PolyTree &&polytree)

1
src/libslic3r/ClipperUtils.hpp
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@ -313,6 +313,7 @@ namespace ClipperUtils {
[[nodiscard]] Polygon clip_clipper_polygon_with_subject_bbox(const Polygon &src, const BoundingBox &bbox); [[nodiscard]] Polygon clip_clipper_polygon_with_subject_bbox(const Polygon &src, const BoundingBox &bbox);
[[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const Polygons &src, const BoundingBox &bbox); [[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const Polygons &src, const BoundingBox &bbox);
[[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const ExPolygon &src, const BoundingBox &bbox); [[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const ExPolygon &src, const BoundingBox &bbox);
[[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const ExPolygons &src, const BoundingBox &bbox);
} }

19
src/libslic3r/PerimeterGenerator.cpp
View file

@ -846,7 +846,16 @@ void PerimeterGenerator::process_classic()
offset_top_surface = 0; offset_top_surface = 0;
//don't takes into account too thin areas //don't takes into account too thin areas
double min_width_top_surface = std::max(double(ext_perimeter_spacing / 2 + 10), 1.0 * (double(perimeter_width))); double min_width_top_surface = std::max(double(ext_perimeter_spacing / 2 + 10), 1.0 * (double(perimeter_width)));
ExPolygons grown_upper_slices = offset_ex(*this->upper_slices, min_width_top_surface);
Polygons grown_upper_slices = offset(*this->upper_slices, min_width_top_surface);
//BBS: get boungding box of last
BoundingBox last_box = get_extents(last);
last_box.offset(SCALED_EPSILON);
// BBS: get the Polygons upper the polygon this layer
Polygons upper_polygons_series_clipped = ClipperUtils::clip_clipper_polygons_with_subject_bbox(grown_upper_slices, last_box);
//set the clip to a virtual "second perimeter" //set the clip to a virtual "second perimeter"
fill_clip = offset_ex(last, -double(ext_perimeter_spacing)); fill_clip = offset_ex(last, -double(ext_perimeter_spacing));
// get the real top surface // get the real top surface
@ -854,13 +863,15 @@ void PerimeterGenerator::process_classic()
ExPolygons bridge_checker; ExPolygons bridge_checker;
// BBS: check whether surface be bridge or not // BBS: check whether surface be bridge or not
if (this->lower_slices != NULL) { if (this->lower_slices != NULL) {
grown_lower_slices =*this->lower_slices; // BBS: get the Polygons below the polygon this layer
Polygons lower_polygons_series_clipped = ClipperUtils::clip_clipper_polygons_with_subject_bbox(*this->lower_slices, last_box);
double bridge_offset = std::max(double(ext_perimeter_spacing), (double(perimeter_width))); double bridge_offset = std::max(double(ext_perimeter_spacing), (double(perimeter_width)));
bridge_checker = offset_ex(diff_ex(last, grown_lower_slices, ApplySafetyOffset::Yes), 1.5 * bridge_offset); bridge_checker = offset_ex(diff_ex(last, lower_polygons_series_clipped, ApplySafetyOffset::Yes), 1.5 * bridge_offset);
} }
ExPolygons delete_bridge = diff_ex(last, bridge_checker, ApplySafetyOffset::Yes); ExPolygons delete_bridge = diff_ex(last, bridge_checker, ApplySafetyOffset::Yes);
ExPolygons top_polygons = diff_ex(delete_bridge, grown_upper_slices, ApplySafetyOffset::Yes); ExPolygons top_polygons = diff_ex(delete_bridge, upper_polygons_series_clipped, ApplySafetyOffset::Yes);
//get the not-top surface, from the "real top" but enlarged by external_infill_margin (and the min_width_top_surface we removed a bit before) //get the not-top surface, from the "real top" but enlarged by external_infill_margin (and the min_width_top_surface we removed a bit before)
ExPolygons temp_gap = diff_ex(top_polygons, fill_clip); ExPolygons temp_gap = diff_ex(top_polygons, fill_clip);
ExPolygons inner_polygons = diff_ex(last, ExPolygons inner_polygons = diff_ex(last,