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package Slic3r::Line;
use strict;
use warnings;
use Slic3r::Geometry qw(A B X Y);
sub new {
my $class = shift;
my $self;
if (@_ == 2) {
$self = [ @_ ];
} elsif (ref $_[0] eq 'ARRAY') {
$self = [ $_[0][0], $_[0][1] ];
} elsif ($_[0]->isa(__PACKAGE__)) {
return $_[0];
} else {
die "Invalid argument for $class->new";
}
bless $self, $class;
bless $_, 'Slic3r::Point' for @$self;
return $self;
}
sub cast {
my $class = shift;
my ($line) = @_;
return $line if ref $line eq __PACKAGE__;
return $class->new($line);
}
sub a { $_[0][0] }
sub b { $_[0][1] }
sub id {
my $self = shift;
return $self->a->id . "-" . $self->b->id;
}
sub ordered_id {
my $self = shift;
return join('-', sort map $_->id, @$self);
}
sub coordinates {
my $self = shift;
return ($self->a->coordinates, $self->b->coordinates);
}
sub coincides_with {
my $self = shift;
my ($line) = @_;
return ($self->a->coincides_with($line->a) && $self->b->coincides_with($line->b))
|| ($self->a->coincides_with($line->b) && $self->b->coincides_with($line->a));
}
sub has_endpoint {
my $self = shift;
my ($point) = @_;
return $point->coincides_with($self->a) || $point->coincides_with($self->b);
}
sub has_segment {
my $self = shift;
my ($line) = @_;
# a segment belongs to another segment if its points belong to it
return Slic3r::Geometry::point_in_segment($line->[0], $self)
&& Slic3r::Geometry::point_in_segment($line->[1], $self);
}
sub parallel_to {
my $self = shift;
my ($line) = @_;
return Slic3r::Geometry::lines_parallel($self, $line);
}
sub length {
my $self = shift;
return Slic3r::Geometry::line_length($self);
}
sub atan {
my $self = shift;
return Slic3r::Geometry::line_atan($self);
}
sub direction {
my $self = shift;
return Slic3r::Geometry::line_direction($self);
}
sub intersection {
my $self = shift;
my ($line, $require_crossing) = @_;
return Slic3r::Geometry::line_intersection($self, $line, $require_crossing);
}
sub point_on_left {
my $self = shift;
my ($point) = @_;
return Slic3r::Geometry::point_is_on_left_of_segment($point, $self);
}
sub midpoint {
my $self = shift;
return Slic3r::Point->new(
($self->[A][X] + $self->[B][X]) / 2,
($self->[A][Y] + $self->[B][Y]) / 2,
);
}
sub reverse {
my $self = shift;
@$self = reverse @$self;
}
1;
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