86 lines
2.0 KiB
Perl
86 lines
2.0 KiB
Perl
package Slic3r::Polyline;
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use Moo;
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use Math::Clipper qw();
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use Sub::Quote;
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# arrayref of ordered points
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has 'points' => (
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is => 'rw',
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required => 1,
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default => sub { [] },
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isa => quote_sub q{ use Carp; confess "invalid points" if grep ref $_ ne 'Slic3r::Point', @{$_[0]} },
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);
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sub id {
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my $self = shift;
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return join ' - ', map $_->id, @{$self->points};
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}
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sub cast {
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my $self = shift;
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my ($points) = @_;
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@$points = map { ref $_ eq 'ARRAY' ? Slic3r::Point->cast($_) : $_ } @$points;
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return __PACKAGE__->new(points => $points);
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}
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sub lines {
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my $self = shift;
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my @lines = ();
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my $previous_point;
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foreach my $point (@{ $self->points }) {
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if ($previous_point) {
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push @lines, Slic3r::Line->new(points => [ $previous_point, $point ]);
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}
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$previous_point = $point;
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}
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return @lines;
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}
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sub p {
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my $self = shift;
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return [ map $_->p, @{$self->points} ];
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}
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sub merge_continuous_lines {
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my $self = shift;
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my $last_line;
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foreach my $line ($self->lines) {
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if (defined $last_line && $line->parallel_to($last_line)) {
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# $line and $last_line are parallel and continuous,
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# so we can remove their common point from our polyline
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# find common point
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my ($common_point) = grep $_ eq $line->a || $_ eq $line->b, @{$last_line->points};
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# remove point from polyline
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@{$self->points} = grep $_ ne $common_point, @{$self->points};
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}
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$last_line = $line;
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}
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}
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sub reverse_points {
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my $self = shift;
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@{$self->points} = reverse @{$self->points};
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}
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sub is_counter_clockwise {
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my $self = shift;
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return Math::Clipper::is_counter_clockwise($self->p);
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}
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sub make_counter_clockwise {
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my $self = shift;
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$self->reverse_points if !$self->is_counter_clockwise;
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}
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sub make_clockwise {
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my $self = shift;
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$self->reverse_points if $self->is_counter_clockwise;
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}
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1;
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