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Fix plater slowness after the introduction of the vertical projection

medial-thinwall
Alessandro Ranellucci 2012-11-29 19:13:52 +01:00
parent 93310a6a81
commit b495e15d7f
2 changed files with 10 additions and 8 deletions
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13
lib/Slic3r/GUI/Plater.pm
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@ -1119,20 +1119,21 @@ sub make_thumbnail {
my @points = map [ @$_[X,Y] ], @{$self->model_object->mesh->vertices};
my $mesh = $self->model_object->mesh;
my $thumbnail = Slic3r::ExPolygon::Collection->new(
expolygons => (@{$mesh->facets} <= 2000)
expolygons => (@{$mesh->facets} <= 5000)
? $mesh->horizontal_projection
: [ Slic3r::ExPolygon->new(convex_hull($mesh->vertices)) ],
);
for (map @$_, map @$_, @{$thumbnail->expolygons}) {
@$_ = map $_ * $self->thumbnail_scaling_factor, @$_;
}
for (@{$thumbnail->expolygons}) {
$_->simplify(0.3);
$_->rotate(Slic3r::Geometry::deg2rad($self->rotate));
$_->scale($self->scale);
foreach my $expolygon (@{$thumbnail->expolygons}) {
@$expolygon = grep $_->area >= 1, @$expolygon;
$expolygon->simplify(0.5);
$expolygon->rotate(Slic3r::Geometry::deg2rad($self->rotate));
$expolygon->scale($self->scale);
}
@{$thumbnail->expolygons} = grep @$_, @{$thumbnail->expolygons};
$thumbnail->align_to_origin;
$self->thumbnail($thumbnail); # ignored in multi-threaded environments
$self->free_model_object;

5
lib/Slic3r/TriangleMesh.pm
View File

@ -584,11 +584,12 @@ sub horizontal_projection {
my @f = ();
foreach my $facet (@{$self->facets}) {
push @f, [ map [ @{$self->vertices->[$_]}[X,Y] ], @$facet ];
push @f, Slic3r::Polygon->new([ map [ @{$self->vertices->[$_]}[X,Y] ], @$facet ]);
}
$_->make_counter_clockwise for @f;
my $scale_vector = Math::Clipper::integerize_coordinate_sets({ bits => 32 }, @f);
my $union = union_ex([ Slic3r::Geometry::Clipper::offset(\@f, 1) ]);
my $union = union_ex([ Slic3r::Geometry::Clipper::offset(\@f, 10000) ]);
Math::Clipper::unscale_coordinate_sets($scale_vector, $_) for @$union;
return $union;
}