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Manual Reference Pages  -  CHART::CLICKER::RENDERER::PIE (3)

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NAME

Chart::Clicker::Renderer::Pie - Pie renderer

CONTENTS

VERSION

version 2.88

SYNOPSIS



  my $pier = Chart::Clicker::Renderer::Pie->new;
  # Optionally set the stroke width
  $pier->brush->width(2);



DESCRIPTION

Chart::Clicker::Renderer::Pie renders a dataset as slices of a pie. The keys of like-named Series are totaled and keys are ignored. So for a dataset like:



  my $series = Chart::Clicker::Data::Series->new(
      keys    => [ 1, 2, 3 ],
      values  => [ 1, 2, 3],
  );

  my $series2 = Chart::Clicker::Data::Series->new(
      keys    => [ 1, 2, 3],
      values  => [ 1, 1, 1 ],
  );



The keys are discarded and a pie chart will be drawn with $series’ slice at 66% (1 + 2 + 3 = 6) and $series2’s at 33% (1 + 1 + 1 = 3).

ATTRIBUTES

ATTRIBUTES

    border_color

Set/Get the color to use for the border.

    brush

Set/Get a brush to be used for the pie’s border.

    gradient_color

If supplied, specifies a color to mix with each slice’s color for use as a radial gradient. The best results are usually gotten from mixing with a white or black and manipulating the alpha, like so:



  $ren->gradient_color(
    Graphics::Color::RGB->new(red => 1, green => 1, blue => 1, alpha => .3)
  );



The above will cause each generated color to fade toward a lighter version of itself. Adjust the alpha to increase or decrease the effect.

    brush

Set/Get whether or not the gradient is to be reversed.

    starting_angle

Set/Get a starting angle for the gradient.

AUTHOR

Cory G Watson <gphat@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2014 by Cold Hard Code, LLC.

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

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perl v5.20.3 CHART::CLICKER::RENDERER::PIE (3) 2014-04-01

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