82 lines
1.7 KiB
Perl
82 lines
1.7 KiB
Perl
package Slic3r::Line;
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use Moose;
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use Moose::Util::TypeConstraints;
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use Scalar::Util qw(weaken);
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has 'a' => (
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is => 'ro',
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isa => 'Slic3r::Point',
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required => 1,
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);
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has 'b' => (
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is => 'ro',
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isa => 'Slic3r::Point',
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required => 1,
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);
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has 'polyline' => (
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is => 'rw',
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isa => 'Slic3r::Polyline',
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weak_ref => 1,
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);
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has 'solid_side' => (
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is => 'rw',
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isa => enum([qw(left right)]), # going from a to b
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);
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sub BUILD {
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my $self = shift;
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# add a weak reference to this line in point objects
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# (avoid circular refs)
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for ($self->a, $self->b) {
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push @{ $_->lines }, $self;
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weaken($_->lines->[-1]);
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}
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}
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sub id {
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my $self = shift;
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return $self->a->id . "-" . $self->b->id;
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}
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sub coincides_with {
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my $self = shift;
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my ($line) = @_;
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return ($self->a->coincides_with($line->a) && $self->b->coincides_with($line->b))
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|| ($self->a->coincides_with($line->b) && $self->b->coincides_with($line->a));
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}
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sub has_endpoint {
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my $self = shift;
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my ($point) = @_;#printf " %s has endpoint %s: %s\n", $self->id, $point->id, ($point eq $self->a || $point eq $self->b);
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return $point->coincides_with($self->a) || $point->coincides_with($self->b);
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}
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sub slope {
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my $self = shift;
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return undef if $self->b->x == $self->a->x; # line is vertical
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return ($self->b->y - $self->a->y) / ($self->b->x - $self->a->x); #)
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}
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sub neighbors {
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my $self = shift;
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return grep $_ && $_ ne $self, map @{$_->lines}, $self->a, $self->b;
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}
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sub next {
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my $self = shift;
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return +(grep $_ && $_ ne $self, @{$self->b->lines})[0];
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}
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sub points {
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my $self = shift;
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return ($self->a, $self->b);
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}
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1;
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