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=encoding utf8

=head1 NAME

Math::Polygon::Convex - Collection of convex algorithms

=head1 INHERITANCE

 Math::Polygon::Convex
   is an Exporter

=head1 SYNOPSIS

  use Math::Polygon::Convex  qw/chainHull_2D/;

  my @points = ( [1,2], [2,4], [5,7], [1,2] );
  my $poly   = chainHull_2D @points;

=head1 DESCRIPTION

The "convex polygon" around a set of points, is the polygon with a minimal
size which contains all points.

This package contains one convex calculation algorithm, but may be extended
with alternative implementations in the future.

=head1 FUNCTIONS

=over 4

=item B<chainHull_2D>(@points)

Each POINT is an ARRAY of two elements: the X and Y coordinate of a point.
Returned is the enclosing convex L<Math::Polygon|Math::Polygon> object.

Algorithm by Dan Sunday,
L<https://geometryalgorithms.com/Archive/algorithm_0109/algorithm_0109.htm>

=back

=head1 SEE ALSO

This module is part of Math-Polygon version 2.00,
built on September 04, 2025. Website: F<http://perl.overmeer.net/CPAN/>

=head1 LICENSE

For contributors see file ChangeLog.

This software is copyright (c) 2004-2025 by Mark Overmeer.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.