3DPrinting/PrusaSlicer-NonPlainar
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Add safety offset to thin wall regions to prevent overlapping geometry and corrupt Voronoi diagram

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Alessandro Ranellucci 2014-03-05 00:45:17 +01:00
parent e1f93fd112
commit 4a894b1e20
2 changed files with 3 additions and 4 deletions
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5
lib/Slic3r/Layer/Region.pm
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@ -99,6 +99,7 @@ sub make_perimeters {
my $diff = diff_ex(
\@last,
offset(\@offsets, +0.5*$pwidth),
1, # medial axis requires non-overlapping geometry
);
push @thin_walls, @$diff;
}
@ -222,9 +223,6 @@ sub make_perimeters {
$self->perimeters->append(@loops);
# process thin walls by collapsing slices to single passes
my $min_thin_wall_width = $pwidth/3;
my $min_thin_wall_length = 2*$pwidth;
#@thin_walls = @{offset2_ex([ map @$_, @thin_walls ], -0.5*$min_thin_wall_width, +0.5*$min_thin_wall_width)};
if (@thin_walls) {
my @p = map @{$_->medial_axis($pspacing)}, @thin_walls;
@ -240,6 +238,7 @@ sub make_perimeters {
}
my @paths = ();
my $min_thin_wall_length = 2*$pwidth;
for my $p (@p) {
next if $p->length < $min_thin_wall_length;
my %params = (

2
xs/src/Geometry.cpp
View File

@ -237,7 +237,7 @@ MedialAxis::is_valid_edge(const VD::edge_type& edge) const
// if we only process segments representing closed loops, none if the
// infinite edges (if any) would be part of our MAT anyway
if (edge.is_secondary() || edge.is_infinite()) return false;
/* If the cells sharing this edge have a common vertex, we're not interested
in this edge. Why? Because it means that the edge lies on the bisector of
two contiguous input lines and it was included in the Voronoi graph because