graphics::color::hsv(3pm) [debian man page]
Graphics::Color::HSV(3pm) User Contributed Perl Documentation Graphics::Color::HSV(3pm) NAME
Graphics::Color::HSV - HSV color space VERSION
version 0.29 SYNOPSIS
use Graphics::Color::HSV; my $color = Graphics::Color::HSV->new({ hue => 120, saturation => .5, value => .25, }); DESCRIPTION
Graphics::Color::HSV represents a Color in an RGB color space. HSLV stands for Hue Saturation and Value. HSV is closely related to HSL. ATTRIBUTES
hue h Set/Get the hue component of this Color. saturation s Set/Get the saturation component of this Color. value v Set/Get the value component of this Color. alpha Set/Get the alpha component of this Color. 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 HUE,SATURATION,VALUE,ALPHA. as_percent_string Return a percent formatted value for this color. This format is suitable for CSS HSV values. as_array Get the HSV values as an array as_array_with_alpha> Get the HSVA 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. to_rgb Creates this HSV color in RGB space. Returns a Graphics::Color::RGB object. AUTHOR
Cory G Watson <gphat@cpan.org> COPYRIGHT AND LICENSE
This software is copyright (c) 2011 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 v5.12.4 2011-08-25 Graphics::Color::HSV(3pm)
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Graphics::Color::RGB(3pm) User Contributed Perl Documentation Graphics::Color::RGB(3pm) NAME
Graphics::Color::RGB - RGB color model VERSION
version 0.29 SYNOPSIS
use Graphics::Color::RGB; my $color = Graphics::Color::RGB->new({ red => 1, blue => .31, green => .25, }); DESCRIPTION
Graphics::Color::RGB represents a Color in the sRGB color space. Individual color channels are expressed as decimal values from 0 to 1, 0 being a lack of that color (or opaque in the case of alpha) and 1 being full color (or transparent in the case of alpha). If no options are provided then new instance of RGB are opaque white, (that is equivalent to red => 1, green => 1, blue => 1, alpha => 1). Convenience methods are supplied to convert to various string values. ATTRIBUTES
red r Set/Get the red component of this Color. Aliased to 'r' as well. green g Set/Get the green component of this Color. Aliased to 'g' as well. blue b Set/Get the blue component of this Color. Aliased to 'b' as well. alpha a Set/Get the alpha component of this Color. Aliased to 'a' as well. name Get the name of this color. Only valid if the color was created by name. METHODS
as_string Get a string version of this Color in the form of RED,GREEN,BLUE,ALPHA as_integer_string Return an integer formatted value for this color. This format is suitable for CSS RGBA values. as_css_hex Return a hex formatted value with a prepended '#' for use in CSS and HTML. as_hex_string ( [$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. AUTHOR
Cory G Watson <gphat@cpan.org> COPYRIGHT AND LICENSE
This software is copyright (c) 2011 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 v5.12.4 2011-08-11 Graphics::Color::RGB(3pm)