Color::Spectrum - Just another HTML color generator.
# Procedural interface: use Color::Spectrum qw( generate ); my @color = generate(10, '#000000', '#FF0000' ); # OO interface: use Color::Spectrum; my $spectrum = Color::Spectrum->new; my @color = $spectrum->generate( 10, 'black', 'red' );
From the author, Mark Mills: "This is a rewrite of a script I wrote [around 1999] to make spectrums of colors for web page table tags. It uses a real simple geometric conversion that gets the job done. It can shade from dark to light, from saturated to dull, and around the spectrum all at the same time. It can go thru the spectrum in either direction."
Constructor. No args.
This method returns a list of size $elements which contains web colors starting from $start_color and ranging to $end_color.
# Procedural interface: @list = generate( $elements, $start_color, $end_color ); # OO interface: @list = $spectrum->generate( $elements, $start_color, $end_color );
Hue, saturation and intesity to red, green and blue.
Red, green and blue to hue, saturation and intesity.
Just call generate() more than once. If you want expand from one color to the next, and then back to the original color then simply reuse the returned array (minus the last element if you don't want the repeated color).
my @color = $spectrum->generate(4,'#000000','#FFFFFF'); print for @color, (reverse @color)[1..$#color];
If you want to expand from one color to the next, and then to yet another color, simply stack calls to generate() and take care to remove the repeated color each time:
my @color = ( $spectrum->generate(13,'#FF0000','#00FF00'), ($spectrum->generate(13,'#00FF00','#0000FF'))[1..12], );
Color::Library - Used to look up non hash value colors.
Please report any bugs or feature requests to either
bug-color-spectrum at rt.cpan.org
The Github project is https://github.com/jeffa/Color-Spectrum
You can find documentation for this module with the perldoc command.
You can also look for information at:
This package is maintained by Jeff Anderson,
<jeffa at cpan.org>
Copyright 2016 Mark Mills.
This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:
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