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fix issue in seam placer with arachne perimeter lines - the lines overlap

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with perimeter loops and the line was sometimes mistakenly chosen instead of
the loop and its aligned seam during seam placing
This commit is contained in:
Pavel Mikus 2022-08-19 12:22:44 +02:00 committed by PavelMikus
parent 6848ed29f1
commit c3e0ff6eda
1 changed files with 21 additions and 6 deletions
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27
src/libslic3r/GCode/SeamPlacer.cpp
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@ -1551,12 +1551,27 @@ void SeamPlacer::place_seam(const Layer *layer, ExtrusionLoop &loop, bool extern
m_seam_per_object.find(layer->object())->second.layers[layer_index];
// Find the closest perimeter in the SeamPlacer to the first point of this loop.
size_t closest_perimeter_point_index;
{
const Point &fp = loop.first_point();
Vec2f unscaled_p = unscaled<float>(fp);
closest_perimeter_point_index = find_closest_point(*layer_perimeters.points_tree.get(),
to_3d(unscaled_p, float(unscaled_z)));
size_t closest_perimeter_point_index = 0;
{ // local space for the closest_perimeter_point_index
Perimeter *closest_perimeter = nullptr;
size_t point_index = 0;
size_t path_index = 0;
while (point_index < loop.paths.back().size() || path_index < loop.paths.size()) {
Vec2f unscaled_p = unscaled<float>(loop.paths[path_index].polyline.points[point_index]);
closest_perimeter_point_index = find_closest_point(*layer_perimeters.points_tree.get(),
to_3d(unscaled_p, float(unscaled_z)));
if (closest_perimeter != &layer_perimeters.points[closest_perimeter_point_index].perimeter) {
closest_perimeter = &layer_perimeters.points[closest_perimeter_point_index].perimeter;
if (point_index + 1 < loop.paths[path_index].polyline.points.size()) {
point_index++;
} else {
path_index++;
point_index = 0;
}
} else {
break;
}
}
}
Vec3f seam_position;