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.\" ========================================================================
.\"
.IX Title "Chart::Clicker::Renderer::Pie 3pm"
.TH Chart::Clicker::Renderer::Pie 3pm "2016-12-28" "perl v5.24.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Chart::Clicker::Renderer::Pie \- Pie renderer
.SH "VERSION"
.IX Header "VERSION"
version 2.90
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\&  my $pier = Chart::Clicker::Renderer::Pie\->new;
\&  # Optionally set the stroke width
\&  $pier\->brush\->width(2);
.Ve
.SH "DESCRIPTION"
.IX Header "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:
.PP
.Vb 4
\&  my $series = Chart::Clicker::Data::Series\->new(
\&      keys    => [ 1, 2, 3 ],
\&      values  => [ 1, 2, 3],
\&  );
\&
\&  my $series2 = Chart::Clicker::Data::Series\->new(
\&      keys    => [ 1, 2, 3],
\&      values  => [ 1, 1, 1 ],
\&  );
.Ve
.PP
The keys are discarded and a pie chart will be drawn with \f(CW$series\fR' slice at
66% (1 + 2 + 3 = 6) and \f(CW$series2\fR's at 33% (1 + 1 + 1 = 3).
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.SS "border_color"
.IX Subsection "border_color"
Set/Get the color to use for the border.
.SS "brush"
.IX Subsection "brush"
Set/Get a brush to be used for the pie's border.
.SS "gradient_color"
.IX Subsection "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:
.PP
.Vb 3
\&  $ren\->gradient_color(
\&    Graphics::Color::RGB\->new(red => 1, green => 1, blue => 1, alpha => .3)
\&  );
.Ve
.PP
The above will cause each generated color to fade toward a lighter version of
itself.  Adjust the alpha to increase or decrease the effect.
.SS "brush"
.IX Subsection "brush"
Set/Get whether or not the gradient is to be reversed.
.SS "starting_angle"
.IX Subsection "starting_angle"
Set/Get a starting angle for the gradient.
.SH "AUTHOR"
.IX Header "AUTHOR"
Cory G Watson <gphat@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2016 by Cory G Watson.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.