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Fixed regression causing some bridges not to be detected correctly. #629

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This commit is contained in:
Alessandro Ranellucci
2012-08-25 20:04:29 +02:00
parent fe6c8fabdb
commit 896641cb7e
5 changed files with 43 additions and 26 deletions
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19
lib/Slic3r/Layer.pm
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@@ -358,13 +358,30 @@ sub prepare_fill_surfaces {
if ($Slic3r::Config->fill_density == 0) {
@surfaces = grep $_->surface_type != S_TYPE_INTERNAL, @surfaces;
}
# remove unprintable regions (they would slow down the infill process and also cause
# some weird failures during bridge neighbor detection)
{
my $distance = scale $self->infill_flow->spacing / 2;
@surfaces = map {
my $surface = $_;
# offset inwards
my @offsets = $surface->expolygon->offset_ex(-$distance);
@offsets = @{union_ex(Math::Clipper::offset([ map @$_, @offsets ], $distance, 100, JT_MITER))};
map Slic3r::Surface->new(
expolygon => $_,
surface_type => $surface->surface_type,
), @offsets;
} @surfaces;
}
# turn too small internal regions into solid regions
{
my $min_area = scale scale $Slic3r::Config->solid_infill_below_area; # scaling an area requires two calls!
my @small = grep $_->surface_type == S_TYPE_INTERNAL && $_->expolygon->contour->area <= $min_area, @surfaces;
$_->surface_type(S_TYPE_INTERNALSOLID) for @small;
Slic3r::debugf "identified %d small surfaces at layer %d\n", scalar(@small), $self->id if @small > 0;
Slic3r::debugf "identified %d small solid surfaces at layer %d\n", scalar(@small), $self->id if @small > 0;
}
$self->fill_surfaces([@surfaces]);