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color::library::color(3pm) [debian man page]

Color::Library::Color(3pm)				User Contributed Perl Documentation				Color::Library::Color(3pm)

NAME

       Color::Library::Color - Color entry for a Color::Library color dictionary

METHODS

       $id = $color->id
	   Returns the id of the color

	   A color id is in the format of <dictionary_id:color_name>, e.g.

	       svg:aliceblue
	       x11:bisque2
	       nbs-iscc-f:chromeyellow.66
	       vaccc:darkspringyellow

       $name = $color->name
	   Returns the name of the color, e.g.

	       aliceblue
	       bisque2
	       chromeyellow
	       darkspringyellow

       $title = $color->title
	   Returns the title of the color, e.g.

	       aliceblue
	       bisque2
	       chrome yellow
	       Dark Spring-Yellow

       $dictionary = $color->dictionary
	   Returns the Color::Library::Dictionary object that the color belongs to

       $hex = $color->hex
	   Returns the hex value of the color, e.g.

	       ff08ff
	       eed5b7
	       eaa221
	       669900

	   Note that $hex does NOT include the leading #, for that use $color->html, $color->css, or $color->svg

       $html = $color->html
       $css = $color->css
       $svg = $color->svg
	   Returns the hex value of the color with a leading #, suitable for use in HTML, CSS, or SVG documents, e.g.

	       #ff08ff
	       #eed5b7
	       #eaa221
	       #669900

       $value = $color->value
	   Returns the numeric value of the color, e.g.

	       15792383
	       15652279
	       15376929
	       6723840

       ($r, $g, $b) = $color->rgb
	   Returns r, g, and b values of the color as a 3 element list (list context), e.g.

	       (240, 248, 255)

       $rgb = $color->rgb
	   Returns r, g, and b values of the color in a 3 element array (scalar context), e.g.

	       [ 240, 248, 255 ]

       $color = Color::Library::Color->new( id => $id, name => $name, title => $title, value => $value )
       $color = Color::Library::Color->new( { id => $id, name => $name, title => $title, value => $value } )
       $color = Color::Library::Color->new( [[ $id, $name, $title, $rgb, $hex, $value ]] )
	   Returns a new Color::Library::Color object representing the specified color

	   You probably don't want/need to call this yourself

   FUNCTIONS
       $hex = Color::Library::Color::rgb2hex( $rgb )
       $hex = Color::Library::Color::rgb2hex( $r, $g, $b )
	   Converts an rgb value to its hex representation

       $value = Color::Library::Color::rgb2value( $rgb )
       $value = Color::Library::Color::rgb2value( $r, $g, $b )
	   Converts an rgb value to its numeric representation

       $rgb = Color::Library::Color::value2rgb( $value )
       ($r, $g, $b) = Color::Library::Color::value2rgb( $value )
	   Converts a numeric color value to its rgb representation

       ($r, $g, $b) = Color::Library::Color::parse_rgb_color( $hex )
       ($r, $g, $b) = Color::Library::Color::parse_rgb_color( $value )
	   Makes a best effort to convert a hex or numeric color value to its rgb representation

perl v5.14.2							    2011-12-07						Color::Library::Color(3pm)

Check Out this Related Man Page

Imager::Color::Float(3pm)				User Contributed Perl Documentation				 Imager::Color::Float(3pm)

NAME

       Imager::Color::Float - Rough floating point sample color handling

SYNOPSIS

	 $color = Imager::Color->new($red, $green, $blue);
	 $color = Imager::Color->new($red, $green, $blue, $alpha);
	 $color = Imager::Color->new("#C0C0FF"); # html color specification

	 $color->set($red, $green, $blue);
	 $color->set($red, $green, $blue, $alpha);
	 $color->set("#C0C0FF"); # html color specification

	 ($red, $green, $blue, $alpha) = $color->rgba();
	 @hsv = $color->hsv(); # not implemented but proposed

	 $color->info();

DESCRIPTION

       This module handles creating color objects used by Imager.  The idea is that in the future this module will be able to handle color space
       calculations as well.

       A floating point Imager color consists of up to four components, each in the range 0.0 to 1.0. Unfortunately the meaning of the components
       can change depending on the type of image you're dealing with:

       o   for 3 or 4 channel images the color components are red, green, blue, alpha.

       o   for 1 or 2 channel images the color components are gray, alpha, with the other two components ignored.

       An alpha value of zero is fully transparent, an alpha value of 1.0 is fully opaque.

METHODS

       new This creates a color object to pass to functions that need a color argument.

       set This changes an already defined color.  Note that this does not affect any places where the color has been used previously.

       rgba()
	   This returns the red, green, blue and alpha channels of the color the object contains.

       info
	   Calling info merely dumps the relevant color to the log.

AUTHOR

       Arnar M. Hrafnkelsson, addi@umich.edu And a great deal of help from others - see the "README" for a complete list.

SEE ALSO

       Imager(3), Imager::Color.

       http://imager.perl.org/

perl v5.14.2							    2011-06-06						 Imager::Color::Float(3pm)
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