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1) Implemented anchoring of infill lines to perimeters with length

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limited anchors, while before a full perimeter segment was always
   taken if possible.
2) Adapted the line infills (grid, stars, triangles, cubic) to 1).
   This also solves a long standing issue of these infills producing
   anchors for each sweep direction independently, thus possibly
   overlapping and overextruding, which was quite detrimental
   in narrow areas.
3) Refactored cubic adaptive infill anchroing algorithm
   for performance and clarity.
This commit is contained in:
Vojtech Bubnik
2020-11-05 17:32:40 +01:00
parent 414fdaefc5
commit 239d588c5d
12 changed files with 1200 additions and 626 deletions
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7
src/libslic3r/Point.hpp
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@@ -132,6 +132,7 @@ public:
void rotate(double angle, const Point &center);
Point rotated(double angle) const { Point res(*this); res.rotate(angle); return res; }
Point rotated(double cos_a, double sin_a) const { Point res(*this); res.rotate(cos_a, sin_a); return res; }
Point rotated(double angle, const Point &center) const { Point res(*this); res.rotate(angle, center); return res; }
int nearest_point_index(const Points &points) const;
int nearest_point_index(const PointConstPtrs &points) const;
@@ -174,6 +175,12 @@ inline bool is_approx(const Vec3d &p1, const Vec3d &p2, double epsilon = EPSILON
return d.x() < epsilon && d.y() < epsilon && d.z() < epsilon;
}
inline Point lerp(const Point &a, const Point &b, double t)
{
assert((t >= -EPSILON) && (t <= 1. + EPSILON));
return ((1. - t) * a.cast<double>() + t * b.cast<double>()).cast<coord_t>();
}
namespace int128 {
// Exact orientation predicate,
// returns +1: CCW, 0: collinear, -1: CW.