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improve the filters of regions that will be turned into bridges

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This commit is contained in:
PavelMikus 2023-02-27 12:52:46 +01:00
parent e4910381b4
commit 43a155c476
1 changed files with 11 additions and 4 deletions
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15
src/libslic3r/PrintObject.cpp
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@ -1777,15 +1777,22 @@ void PrintObject::bridge_over_infill()
assert(candidate->surface_type == stInternalSolid); assert(candidate->surface_type == stInternalSolid);
Polygons bridged_area = expand(to_polygons(candidate->expolygon), flow.scaled_spacing()); Polygons bridged_area = expand(to_polygons(candidate->expolygon), flow.scaled_spacing());
Polygons infill_region = to_polygons(surface_to_region[candidate]->fill_expolygons()); Polygons infill_region = to_polygons(surface_to_region[candidate]->fill_expolygons());
bool touches_perimeter = !diff(bridged_area, infill_region).empty();
bool touches_solid_region_under = !intersection(bridged_area, not_sparse_infill).empty();
bridged_area = bridged_area =
intersection(bridged_area, intersection(bridged_area,
lower_layers_sparse_infill); // cut off parts which are not over sparse infill - material overflow lower_layers_sparse_infill); // cut off parts which are not over sparse infill - material overflow
if ((touches_perimeter || touches_solid_region_under) && shrink(bridged_area, 5.0 * flow.scaled_spacing()).empty()) { {
continue; Polygons area_without_perimeter_boundary_sections = intersection(bridged_area,
closing(infill_region, flow.scaled_width(),
flow.scaled_width() +
4.0 * flow.scaled_spacing()));
Polygons and_further_without_solid_supported_sections = diff(area_without_perimeter_boundary_sections,
expand(not_sparse_infill, 4.0 * flow.scaled_spacing()));
if (and_further_without_solid_supported_sections.empty()) {
continue;
}
} }
Polygons max_area = expand_area; Polygons max_area = expand_area;