Graphics::Color::RGB - RGB color model
Contents
Attributes
redr
Set/Get the red component of this Color. Aliased to 'r' as well.
greeng
Set/Get the green component of this Color. Aliased to 'g' as well.
blueb
Set/Get the blue component of this Color. Aliased to 'b' as well.
alphaa
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.
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.
perl v5.34.0 2022-06-14 Graphics::Color::RGB(3pm)
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.
Methods
as_string
Get a string version of this Color in the form of RED,GREEN,BLUE,ALPHA
as_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([$prepend])
Return a hex formatted value for this color. The output ignores the alpha channel because, per the W3C,
there is no hexadecimal notiation for an RGBA value. Optionally allows you to include a string that will
be prepended. This is a common way to add the "#".
as_percent_string
Return a percent formatted value for this color. This format is suitable for CSS RGBA values.
as_array
Get the RGB values as an array.
as_array_with_alpha
Get the RGBA values as an array
equal_to
Compares this color to the provided one. Returns 1 if true, else 0;
not_equal_to
The opposite of equal_to.
from_color_library($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.
Name
Graphics::Color::RGB - RGB color model
Synopsis
use Graphics::Color::RGB;
my $color = Graphics::Color::RGB->new({
red => 1,
blue => .31,
green => .25,
});
Version
version 0.31
