package LaTeX::TikZ::Set::Polyline;
use strict;
use warnings;
=head1 NAME
LaTeX::TikZ::Set::Polyline - A set object representing a possibly closed path composed of contiguous lines.
=head1 VERSION
Version 0.02
=cut
our $VERSION = '0.02';
use LaTeX::TikZ::Set::Point;
use LaTeX::TikZ::Interface;
use LaTeX::TikZ::Functor;
use Any::Moose;
use Any::Moose 'Util::TypeConstraints';
=head1 RELATIONSHIPS
This class consumes the L role, and as such implements the L method.
=cut
with 'LaTeX::TikZ::Set::Op';
subtype 'LaTeX::TikZ::Set::Polyline::Vertices'
=> as 'ArrayRef[LaTeX::TikZ::Set::Point]'
=> where { @$_ >= 2 }
=> message { 'at least two LaTeX::TikZ::Set::Point objects are needed in order to build a polyline' };
coerce 'LaTeX::TikZ::Set::Polyline::Vertices'
=> from 'ArrayRef[Any]'
=> via { [ map LaTeX::TikZ::Set::Point->new(point => $_), @$_ ] };
=head1 ATTRIBUTES
=head2 C
The list of the successive vertices of the path.
=cut
has '_points' => (
is => 'ro',
isa => 'LaTeX::TikZ::Set::Polyline::Vertices',
init_arg => 'points',
required => 1,
coerce => 1,
);
sub points { @{$_[0]->_points} }
=head2 C
A boolean that indicates whether the path is closed or not.
=cut
has 'closed' => (
is => 'ro',
isa => 'Bool',
default => 0,
);
=head1 METHODS
=head2 C
=cut
sub path {
my $set = shift;
join ' -- ', map($_->path(@_), $set->points),
($set->closed ? 'cycle' : ());
}
LaTeX::TikZ::Interface->register(
polyline => sub {
shift;
__PACKAGE__->new(points => \@_);
},
closed_polyline => sub {
shift;
__PACKAGE__->new(points => \@_, closed => 1);
},
);
LaTeX::TikZ::Functor->default_rule(
(__PACKAGE__) => sub {
my ($functor, $set, @args) = @_;
$set->new(
points => [ map $_->$functor(@args), $set->points ],
closed => $set->closed,
);
}
);
__PACKAGE__->meta->make_immutable;
=head1 SEE ALSO
L, L.
=head1 AUTHOR
Vincent Pit, C<< >>, L.
You can contact me by mail or on C (vincent).
=head1 BUGS
Please report any bugs or feature requests to C, or through the web interface at L.
I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc LaTeX::TikZ
=head1 COPYRIGHT & LICENSE
Copyright 2010 Vincent Pit, all rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
=cut
1; # End of LaTeX::TikZ::Set::Polyline