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ENH: optimize area of top surface

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Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: Ia3d1be6ad3b9f55ee1acda14d0be955055f6dfcb
(cherry picked from commit 448fd3043950613a4d91df256fa9ee52a57fcaca)
This commit is contained in:
salt.wei
2022-12-12 10:32:26 +08:00
committed by Lane.Wei
parent 9f4a54d280
commit 030d97bf78
3 changed files with 56 additions and 1 deletions
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11
src/libslic3r/LayerRegion.cpp
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@@ -152,11 +152,20 @@ void LayerRegion::process_external_surfaces(const Layer *lower_layer, const Poly
{
// Voids are sparse infills if infill rate is zero.
Polygons voids;
double max_grid_area = -1;
if (this->layer()->lower_layer != nullptr)
max_grid_area = this->layer()->lower_layer->get_sparse_infill_max_void_area();
for (const Surface &surface : this->fill_surfaces.surfaces) {
if (surface.is_top()) {
// Collect the top surfaces, inflate them and trim them by the bottom surfaces.
// This gives the priority to bottom surfaces.
surfaces_append(top, offset_ex(surface.expolygon, margin, EXTERNAL_SURFACES_OFFSET_PARAMETERS), surface);
if (max_grid_area < 0 || surface.expolygon.area() < max_grid_area)
surfaces_append(top, offset_ex(surface.expolygon, margin, EXTERNAL_SURFACES_OFFSET_PARAMETERS), surface);
else
//BBS: Don't need to expand too much in this situation. Expand 3mm to eliminate hole and 1mm for contour
surfaces_append(top, intersection_ex(offset(surface.expolygon.contour, margin / 3.0, EXTERNAL_SURFACES_OFFSET_PARAMETERS),
offset_ex(surface.expolygon, margin, EXTERNAL_SURFACES_OFFSET_PARAMETERS)), surface);
} else if (surface.surface_type == stBottom || (surface.surface_type == stBottomBridge && lower_layer == nullptr)) {
// Grown by 3mm.
surfaces_append(bottom, offset_ex(surface.expolygon, margin, EXTERNAL_SURFACES_OFFSET_PARAMETERS), surface);