3DPrinting/PrusaSlicer-NonPlainar
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Fix and improve region filtering

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PavelMikus 2023-03-13 13:02:08 +01:00 committed by Pavel Mikuš
parent 76209d89ff
commit 487d9209ed
1 changed files with 6 additions and 7 deletions
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13
src/libslic3r/PrintObject.cpp
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@ -1607,12 +1607,12 @@ void PrintObject::bridge_over_infill()
if (layer->lower_layer == nullptr) { if (layer->lower_layer == nullptr) {
continue; continue;
} }
auto spacing = layer->regions().front()->flow(frSolidInfill, true).scaled_spacing(); auto spacing = layer->regions().front()->flow(frSolidInfill).scaled_spacing();
Polygons unsupported_area; Polygons unsupported_area;
Polygons lower_layer_solids; Polygons lower_layer_solids;
for (const LayerRegion *region : layer->lower_layer->regions()) { for (const LayerRegion *region : layer->lower_layer->regions()) {
Polygons fill_polys = to_polygons(region->fill_expolygons()); Polygons fill_polys = to_polygons(region->fill_expolygons());
unsupported_area = union_(unsupported_area, fill_polys); unsupported_area = union_(unsupported_area, expand(fill_polys, spacing));
for (const Surface &surface : region->fill_surfaces()) { for (const Surface &surface : region->fill_surfaces()) {
if (surface.surface_type != stInternal || region->region().config().fill_density.value == 100) { if (surface.surface_type != stInternal || region->region().config().fill_density.value == 100) {
Polygons p = to_polygons(surface.expolygon); Polygons p = to_polygons(surface.expolygon);
@ -1621,17 +1621,16 @@ void PrintObject::bridge_over_infill()
} }
} }
//TODO if region touches the extremes, then check for its area and filter. otherwise, keep even the smallest one
lower_layer_solids = expand(lower_layer_solids, 4 * spacing); lower_layer_solids = expand(lower_layer_solids, 4 * spacing);
unsupported_area = shrink(unsupported_area, 4 * spacing); unsupported_area = shrink(unsupported_area, 5 * spacing);
unsupported_area = diff(unsupported_area, lower_layer_solids); unsupported_area = diff(unsupported_area, lower_layer_solids);
for (const LayerRegion *region : layer->regions()) { for (const LayerRegion *region : layer->regions()) {
SurfacesPtr region_internal_solids = region->fill_surfaces().filter_by_type(stInternalSolid); SurfacesPtr region_internal_solids = region->fill_surfaces().filter_by_type(stInternalSolid);
for (const Surface *s : region_internal_solids) { for (const Surface *s : region_internal_solids) {
Polygons unsupported = intersection(to_polygons(s->expolygon), unsupported_area); Polygons unsupported = intersection(to_polygons(s->expolygon), unsupported_area);
if (area(unsupported) > spacing * spacing) { bool partially_supported = area(unsupported) < area(to_polygons(s->expolygon)) - EPSILON;
if (!unsupported.empty() && (!partially_supported || area(unsupported) > 5 * 5 * spacing * spacing)) {
Polygons worth_bridging = intersection(to_polygons(s->expolygon), expand(unsupported, 5 * spacing)); Polygons worth_bridging = intersection(to_polygons(s->expolygon), expand(unsupported, 5 * spacing));
candidate_surfaces.push_back(CandidateSurface(s, worth_bridging, region, 0)); candidate_surfaces.push_back(CandidateSurface(s, worth_bridging, region, 0));