1Imager::Color::Float(3)User Contributed Perl DocumentatioInmager::Color::Float(3)
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NAME

6       Imager::Color::Float - Rough floating point sample colour handling
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SYNOPSIS

9         $color = Imager::Color->new($red, $green, $blue);
10         $color = Imager::Color->new($red, $green, $blue, $alpha);
11         $color = Imager::Color->new("#C0C0FF"); # html color specification
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13         $color->set($red, $green, $blue);
14         $color->set($red, $green, $blue, $alpha);
15         $color->set("#C0C0FF"); # html color specification
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17         ($red, $green, $blue, $alpha) = $color->rgba();
18         @hsv = $color->hsv(); # not implemented but proposed
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20         $color->info();
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DESCRIPTION

23       This module handles creating color objects used by imager.  The idea is
24       that in the future this module will be able to handle colorspace calcu‐
25       lations as well.
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27       A floating point Imager color consists of up to four components, each
28       in the range 0.0 to 1.0. Unfortunately the meaning of the components
29       can change depending on the type of image you're dealing with:
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31       ·   for 3 or 4 channel images the color components are red, green,
32           blue, alpha.
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34       ·   for 1 or 2 channel images the color components are gray, alpha,
35           with the other two components ignored.
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37       An alpha value of zero is fully transparent, an alpha value of 1.0 is
38       fully opaque.
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METHODS

41       new This creates a color object to pass to functions that need a color
42           argument.
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44       set This changes an already defined color.  Note that this does not
45           affect any places where the color has been used previously.
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47       rgba
48           This returns the rgba code of the color the object contains.
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50       info
51           Calling info merely dumps the relevant colorcode to the log.
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AUTHOR

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

58       Imager(3), Imager::Color.
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60       http://imager.perl.org/
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64perl v5.8.8                       2008-03-28           Imager::Color::Float(3)
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