diff options
Diffstat (limited to 'src/libslic3r/MutablePolygon.hpp')
| -rw-r--r-- | src/libslic3r/MutablePolygon.hpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/libslic3r/MutablePolygon.hpp b/src/libslic3r/MutablePolygon.hpp index 1b2b4e445..ea41d6fb4 100644 --- a/src/libslic3r/MutablePolygon.hpp +++ b/src/libslic3r/MutablePolygon.hpp @@ -309,6 +309,28 @@ inline bool operator!=(const MutablePolygon &p1, const MutablePolygon &p2) { ret void remove_duplicates(MutablePolygon &polygon); void remove_duplicates(MutablePolygon &polygon, double eps); +// Remove nearly duplicate points. If a distance between two points is less than scaled_eps +// and if the angle between its surrounding lines is less than max_angle, the point will be removed. +// May reduce the polygon down to empty polygon. +void remove_duplicates(MutablePolygon &polygon, coord_t scaled_eps, const double max_angle); +inline ExPolygons remove_duplicates(ExPolygons expolygons, coord_t scaled_eps, double max_angle) +{ + MutablePolygon mp; + for (ExPolygon &expolygon : expolygons) { + mp.assign(expolygon.contour, expolygon.contour.size() * 2); + remove_duplicates(mp, scaled_eps, max_angle); + mp.polygon(expolygon.contour); + for (Polygon &hole : expolygon.holes) { + mp.assign(hole, hole.size() * 2); + remove_duplicates(mp, scaled_eps, max_angle); + mp.polygon(hole); + } + expolygon.holes.erase(std::remove_if(expolygon.holes.begin(), expolygon.holes.end(), [](const auto &p) { return p.empty(); }), expolygon.holes.end()); + } + expolygons.erase(std::remove_if(expolygons.begin(), expolygons.end(), [](const auto &p) { return p.empty(); }), expolygons.end()); + return expolygons; +} + void smooth_outward(MutablePolygon &polygon, coord_t clip_dist_scaled); inline Polygon smooth_outward(Polygon polygon, coord_t clip_dist_scaled) |