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Ported horizontal_projection() to XS

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Alessandro Ranellucci 2013-11-23 19:41:40 +01:00
parent e75dbf37fa
commit 4d5d003ba7
4 changed files with 27 additions and 20 deletions
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20
lib/Slic3r/TriangleMesh.pm
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@ -29,24 +29,4 @@ sub bounding_box {
return Slic3r::Geometry::BoundingBox->new_from_bb($self->bb3);
}
# this will return *scaled* expolygons, so it is expected to be run
# on unscaled meshes
sub horizontal_projection {
my $self = shift;
my ($facets, $vertices) = ($self->facets, $self->vertices);
my @f = ();
foreach my $facet (@$facets) {
push @f, Slic3r::Polygon->new(
map [ map $_ / &Slic3r::SCALING_FACTOR, @{$vertices->[$_]}[X,Y] ], @$facet
);
}
$_->make_counter_clockwise for @f; # do this after scaling, as winding order might change while doing that
# the offset factor was tuned using groovemount.stl
return union_ex(offset(\@f, Slic3r::Geometry::scale 0.01), 1);
}
1;