Module: Color

Defined in:
lib/color/util.rb,
lib/color.rb,
lib/color/hsb.rb,
lib/color/rgb.rb,
lib/color/scheme.rb,
lib/color/palette.rb,
lib/color/full_palette.rb,
lib/color/sample_palette.rb

Overview

shows a set of colors, in text and html

Defined Under Namespace

Classes: Analogous, Complementary, DoubleComplementary, FullPalette, HSB, Hues, Monochromatic, Palette, RGB, SamplePalette, Scheme, SplitComplementary, Triadic

Constant Summary collapse

VERSION = 
'0.0.1'

Class Method Summary collapse

Class Method Details

.check_constraint(val, str, minimum, maximum) ⇒ Object

should be riel



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# File 'lib/color/util.rb', line 6

def self.check_constraint(val, str, minimum, maximum)
  if val < minimum || val > maximum
    raise RuntimeError.new("#{str} must be (#{minimum} .. #{maximum}), not: #{val}")
  end
end

.distribution(total, len) ⇒ Object

returns an array, of length len, of numbers, equally (or near-equally) distributed for the total



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# File 'lib/color/util.rb', line 19

def self.distribution(total, len)
  base_per = total.to_f / len
  pivot    = total - (base_per.floor * len)
  
  (0 ... len).collect { |idx| base_per.floor + (idx < pivot ? 1 : 0) }
end

.random_in_range(from, to, interval) ⇒ Object 



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# File 'lib/color/util.rb', line 26

def self.random_in_range(from, to, interval)
  from + rand((to.to_f - from) / interval).round * interval
end

.round(num, places) ⇒ Object 



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# File 'lib/color/util.rb', line 12

def self.round(num, places)
  (num * 10 ** places).round / (10 ** places).to_f
end