Class: Gauguin::Image::Pixel

Inherits:

Object

• Object
• Gauguin::Image::Pixel

Defined in:

lib/gauguin/image.rb

Constant Summary

MAX_CHANNEL_VALUE =

257

MAX_TRANSPARENCY =

65535

Instance Method Summary

• #initialize(magic_pixel) ⇒ Pixel constructor

  A new instance of Pixel.

• #to_rgb ⇒ Object
• #transparent? ⇒ Boolean

Constructor Details

#initialize(magic_pixel) ⇒ Pixel

Returns a new instance of Pixel.

# File 'lib/gauguin/image.rb', line 39

def initialize(magic_pixel)
  @magic_pixel = magic_pixel
end

Instance Method Details

#to_rgb ⇒ Object

# File 'lib/gauguin/image.rb', line 47

def to_rgb
  [:red, :green, :blue].map do |color|
    @magic_pixel.send(color) / MAX_CHANNEL_VALUE
  end
end

#transparent? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/gauguin/image.rb', line 43

def transparent?
  @magic_pixel.opacity >= MAX_TRANSPARENCY
end