Method: Color::RGB#-@

Defined in:
lib/color/rgb.rb

#-@ ⇒ Object

Numerically negate the color. This results in a color that is only usable for subtraction.



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# File 'lib/color/rgb.rb', line 558

def -@
  rgb = self.dup
  rgb.instance_variable_set(:@r, -rgb.r)
  rgb.instance_variable_set(:@g, -rgb.g)
  rgb.instance_variable_set(:@b, -rgb.b)
  rgb
end