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FIX: can't detect overhang degree on classic 

Jira: none

Signed-off-by: qing.zhang <qing.zhang@bambulab.com>
Change-Id: I299995c61c2f458bdca95b6f4ae06d87a718b350
This commit is contained in:
qing.zhang 2024-10-24 10:45:57 +08:00 committed by lane.wei
parent 007e4fdeb2
commit bd2843ce51
1 changed files with 36 additions and 1 deletions
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37
src/libslic3r/PerimeterGenerator.cpp
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@ -19,6 +19,7 @@ static const double narrow_loop_length_threshold = 10;
static const double min_degree_gap = 0.1;
static const int max_overhang_degree = overhang_sampling_number - 1;
static const std::vector<double> non_uniform_degree_map = { 0, 10, 25, 50, 75, 100};
static const int insert_point_count = 3;
//BBS: when the width of expolygon is smaller than
//ext_perimeter_width + ext_perimeter_spacing * (1 - SMALLER_EXT_INSET_OVERLAP_TOLERANCE),
//we think it's small detail area and will generate smaller line width for it
@ -339,6 +340,37 @@ public:
}
};
static void sampling_at_line_end(Polyline &poly, double mini_length, int insert_count)
{
Point end_point = poly.last_point();
const double length = poly.length();
if (length < mini_length * 2)
return;
if (length < mini_length * (insert_count * 2 - 1))
insert_count = 0.5 * length / mini_length;
poly.points.pop_back();
double length_count = 0;
Point dir = end_point - poly.first_point();
for (int count = 0; count < insert_count; ++count) {
length_count += mini_length;
poly.append(poly.first_point() + dir * (length_count / length));
}
dir *= -1;
for (int count = 0; count < insert_count; ++count) {
poly.append(end_point + dir * (length_count / length));
length_count -= mini_length;
}
poly.append(end_point);
}
static std::deque<PolylineWithDegree> detect_overahng_degree(Polygons lower_polygons,
Polylines middle_overhang_polyines,
const double &lower_bound,
@ -357,6 +389,9 @@ static std::deque<PolylineWithDegree> detect_overahng_degree(Polygons low
for (size_t polyline_idx = 0; polyline_idx < middle_overhang_polyines.size(); ++polyline_idx) {
//filter too short polyline
Polyline middle_poly = middle_overhang_polyines[polyline_idx];
//sample at start and end
if (middle_poly.size() == 2)
sampling_at_line_end(middle_poly, (upper_bound - lower_bound) / 2, insert_point_count);
Polyline polyline_with_insert_points;
points_overhang.clear();
@ -582,7 +617,7 @@ static ExtrusionEntityCollection traverse_loops(const PerimeterGenerator &perime
overhang_dist_boundary->second);
// BBS: add path with overhang degree
for (PolylineWithDegree polylines_collection : polylines_degree_collection) {
for (PolylineWithDegree &polylines_collection : polylines_degree_collection) {
extrusion_paths_append(paths,
std::move(polylines_collection.polyline),
polylines_collection.overhang_degree,