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ENH: speed up the wall generator process by using bounding box

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Signed-off-by: qing.zhang <qing.zhang@bambulab.com>
Change-Id: Ifccbb33bc6df28136746f98020ef2cad002b5868
This commit is contained in:
qing.zhang 2023-03-06 15:13:36 +08:00 • committed by Lane.Wei
parent aba824bbb9
commit fdd659cefe
3 changed files with 122 additions and 11 deletions
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20
src/libslic3r/ClipperUtils.hpp
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@ -296,7 +296,25 @@ namespace ClipperUtils {
const SurfacesPtr &m_surfaces;
size_t m_size;
};
}
// For ClipperLib with Z coordinates.
using ZPoint = Vec3i32;
using ZPoints = std::vector<Vec3i32>;
// Clip source polygon to be used as a clipping polygon with a bouding box around the source (to be clipped) polygon.
// Useful as an optimization for expensive ClipperLib operations, for example when clipping source polygons one by one
// with a set of polygons covering the whole layer below.
void clip_clipper_polygon_with_subject_bbox(const Points &src, const BoundingBox &bbox, Points &out);
void clip_clipper_polygon_with_subject_bbox(const ZPoints &src, const BoundingBox &bbox, ZPoints &out);
[[nodiscard]] Points clip_clipper_polygon_with_subject_bbox(const Points &src, const BoundingBox &bbox);
[[nodiscard]] ZPoints clip_clipper_polygon_with_subject_bbox(const ZPoints &src, const BoundingBox &bbox);
void clip_clipper_polygon_with_subject_bbox(const Polygon &src, const BoundingBox &bbox, Polygon &out);
[[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 ExPolygon &src, const BoundingBox &bbox);
}
// Perform union of input polygons using the non-zero rule, convert to ExPolygons.
ExPolygons ClipperPaths_to_Slic3rExPolygons(const ClipperLib::Paths &input, bool do_union = false);