table of contents
Graphics::Color::RGB(3pm) | User Contributed Perl Documentation | Graphics::Color::RGB(3pm) |
NAME¶
Graphics::Color::RGB - RGB color modelVERSION¶
version 0.31SYNOPSIS¶
use Graphics::Color::RGB; my $color = Graphics::Color::RGB->new({ red => 1, blue => .31, green => .25, });
DESCRIPTION¶
Graphics::Color::RGB represents a Color in the sRGB color space. Individual color channels are expressed as decimal values from 0 to 1, 0 being a lack of that color (or opaque in the case of alpha) and 1 being full color (or transparent in the case of alpha). If no options are provided then new instance of RGB are opaque white, (that is equivalent to red => 1, green => 1, blue => 1, alpha => 1).Convenience methods are supplied to convert to various string values.
ATTRIBUTES¶
red¶
r¶
Set/Get the red component of this Color. Aliased to 'r' as well.green¶
g¶
Set/Get the green component of this Color. Aliased to 'g' as well.blue¶
b¶
Set/Get the blue component of this Color. Aliased to 'b' as well.alpha¶
a¶
Set/Get the alpha component of this Color. Aliased to 'a' as well.name¶
Get the name of this color. Only valid if the color was created by name.METHODS¶
as_string¶
Get a string version of this Color in the form of RED,GREEN,BLUE,ALPHAas_integer_string¶
Return an integer formatted value for this color. This format is suitable for CSS RGBA values.as_css_hex¶
Return a hex formatted value with a prepended '#' for use in CSS and HTML.as_hex_string ( [$prepend] )¶
Return a hex formatted value for this color. The output ignores the alpha channel because, per the W3C, there is no hexadecimal notiation for an RGBA value. Optionally allows you to include a string that will be prepended. This is a common way to add the "#".as_percent_string¶
Return a percent formatted value for this color. This format is suitable for CSS RGBA values.as_array¶
Get the RGB values as an array.as_array_with_alpha¶
Get the RGBA values as an arrayequal_to¶
Compares this color to the provided one. Returns 1 if true, else 0;not_equal_to¶
The opposite of equal_to.from_color_library ($color_id)¶
Attempts to retrieve the specified color-id using Color::Library. The result is then converted into a Graphics::Color::RGB object.from_hex_string($hex)¶
Attempts to create a Graphics::Color::RGB object from a hex string. Works with or without the leading # and with either 3 or 6 character hex strings.to_hsl¶
Creates this RGB color in HSL space. Returns a Graphics::Color::HSL object.to_hsv¶
Creates this RGB color in HSV space. Returns a Graphics::Color::HSV object.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.
2014-12-09 | perl v5.20.2 |