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Use Clipper for line clipping

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Alessandro Ranellucci 2013-11-21 14:15:38 +01:00
parent 1d6a18071a
commit 3025c77675
20 changed files with 202 additions and 211 deletions
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22
lib/Slic3r/Fill/Honeycomb.pm
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@ -6,7 +6,7 @@ extends 'Slic3r::Fill::Base';
has 'cache' => (is => 'rw', default => sub {{}});
use Slic3r::Geometry qw(PI X Y MIN MAX scale scaled_epsilon);
use Slic3r::Geometry::Clipper qw(intersection);
use Slic3r::Geometry::Clipper qw(intersection intersection_pl);
sub angles () { [0, PI/3, PI/3*2] }
@ -88,17 +88,16 @@ sub fill_surface {
# consider polygons as polylines without re-appending the initial point:
# this cuts the last segment on purpose, so that the jump to the next
# path is more straight
@paths = map Slic3r::Polyline->new(@$_),
@{ Boost::Geometry::Utils::polygon_multi_linestring_intersection(
$surface->expolygon->pp,
[ map $_->pp, @polygons ],
) };
@paths = @{intersection_pl(
[ map Slic3r::Polyline->new(@$_), @polygons ],
[ @{$surface->expolygon} ],
)};
# connect paths
{
my $collection = Slic3r::Polyline::Collection->new(@paths);
@paths = ();
foreach my $path (@{$collection->chained_path(0)}) {
foreach my $path (@{$collection->chained_path_from($collection->leftmost_point, 0)}) {
if (@paths) {
# distance between first point of this path and last point of last path
my $distance = $paths[-1]->last_point->distance_to($path->first_point);
@ -115,11 +114,10 @@ sub fill_surface {
}
# clip paths again to prevent connection segments from crossing the expolygon boundaries
@paths = map Slic3r::Polyline->new(@$_),
@{ Boost::Geometry::Utils::multi_polygon_multi_linestring_intersection(
[ map $_->pp, @{$surface->expolygon->offset_ex(scaled_epsilon)} ],
[ map $_->pp, @paths ],
) } if @paths; # this temporary check is a workaround for the multilinestring bug in B::G::U
@paths = @{intersection_pl(
\@paths,
[ @{$surface->expolygon->offset_ex(scaled_epsilon)} ],
)};
}
return { flow_spacing => $params{flow_spacing} }, @paths;