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package LaTeX::TikZ::Set::Circle; |
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use strict; |
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use warnings; |
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=head1 NAME |
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LaTeX::TikZ::Set::Circle - A set object representing a circle. |
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=head1 VERSION |
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Version 0.02 |
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=cut |
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our $VERSION = '0.02'; |
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use LaTeX::TikZ::Set::Point; |
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use LaTeX::TikZ::Interface; |
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use LaTeX::TikZ::Functor; |
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use LaTeX::TikZ::Tools; |
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use Any::Moose; |
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use Any::Moose 'Util::TypeConstraints'; |
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=head1 RELATIONSHIPS |
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This class consumes the L<LaTeX::TikZ::Set::Op> role, and as such implements the L</path> method. |
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=cut |
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with 'LaTeX::TikZ::Set::Op'; |
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=head1 ATTRIBUTES |
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=head2 C<center> |
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A L<LaTeX::TikZ::Set::Point> object describing the center of the circle. |
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=cut |
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has 'center' => ( |
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is => 'ro', |
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isa => 'LaTeX::TikZ::Set::Point', |
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required => 1, |
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coerce => 1, |
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); |
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=head2 C<radius> |
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The radius of the circle as a non-negative real number. |
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=cut |
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has 'radius' => ( |
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is => 'ro', |
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isa => subtype('Num' => where { LaTeX::TikZ::Tools::numcmp($_, 0) > 0 }), |
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required => 1, |
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); |
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=head1 METHODS |
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=head2 C<path> |
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=cut |
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sub path { |
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my $set = shift; |
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my $tikz = $_[0]; |
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$set->center->path(@_) . ' circle (' . $tikz->len($set->radius) . ')'; |
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} |
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LaTeX::TikZ::Interface->register( |
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circle => sub { |
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shift; |
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__PACKAGE__->new(center => $_[0], radius => $_[1]); |
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}, |
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); |
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LaTeX::TikZ::Functor->default_rule( |
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(__PACKAGE__) => sub { |
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my ($functor, $set, @args) = @_; |
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$set->new( |
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center => $set->center->$functor(@args), |
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radius => $set->radius, |
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); |
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} |
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); |
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__PACKAGE__->meta->make_immutable; |
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=head1 SEE ALSO |
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L<LaTeX::TikZ>, L<LaTeX::TikZ::Set>, L<LaTeX::TikZ::Set::Op>. |
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=head1 AUTHOR |
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Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>. |
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You can contact me by mail or on C<irc.perl.org> (vincent). |
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=head1 BUGS |
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Please report any bugs or feature requests to C<bug-latex-tikz at rt.cpan.org>, or through the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=LaTeX-TikZ>. |
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I will be notified, and then you'll automatically be notified of progress on your bug as I make changes. |
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=head1 SUPPORT |
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You can find documentation for this module with the perldoc command. |
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perldoc LaTeX::TikZ |
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=head1 COPYRIGHT & LICENSE |
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Copyright 2010 Vincent Pit, all rights reserved. |
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This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. |
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=cut |
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1; # End of LaTeX::TikZ::Set::Circle |