Module: Colorizer

Extended by:
Colorizer
Included in:
Colorizer
Defined in:
lib/colorizer.rb

Overview

makandracards.com/makandra/24449-hash-any-ruby-object-into-an-rgb-color

Instance Method Summary collapse

Instance Method Details

#colorize(object) ⇒ Object 



5
6
7
8
9
10
11
 
# File 'lib/colorizer.rb', line 5

def colorize(object)
  # Inspired by Jeremy Ruten (http://stackoverflow.com/questions/1698318/ruby-generate-a-random-hex-color)
  hash = object.hash # hash an object, returns a Fixnum
  trimmed_hash = hash & 0xffffff # trim the hash to the size of 6 hex digits (& is bit-wise AND)
  hex_code = "%06x" % trimmed_hash # format as at least 6 hex digits, pad with zeros
  "##{hex_code}"
end

#colorize_similarly(object, saturation, lightness) ⇒ Object 



13
14
15
16
 
# File 'lib/colorizer.rb', line 13

def colorize_similarly(object, saturation, lightness)
  rnd = ((XXhash.xxh64(object) * 7) % 100) * 0.01
  hsl_to_rgb(rnd, saturation, lightness)
end