Class: Iroki::Color::TwoGroupGradient

Inherits:
Gradient
  • Object
show all
Defined in:
lib/iroki/color/two_group_gradient.rb

Instance Attribute Summary collapse

Attributes inherited from Gradient

#color_hex_codes, #lumins, #max_lumin, #min_lumin, #samples, #single_color

Instance Method Summary collapse

Methods inherited from Gradient

#counts_to_rabunds, #patterns, #rabunds_to_lumins, #scale, #scale_reverse

Constructor Details

#initialize(samples, g1_counts, g2_counts, min_lumin, max_lumin) ⇒ TwoGroupGradient

Returns a new instance of TwoGroupGradient.



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# File 'lib/iroki/color/two_group_gradient.rb', line 24

def initialize samples,
               g1_counts,
               g2_counts,
               min_lumin,
               max_lumin

  assert(samples.count == g1_counts.count &&
               g1_counts.count == g2_counts.count,
               "Samples and counts are different lengths. " +
               "Check your biom file.")

  @min_lumin = min_lumin
  @max_lumin = max_lumin

  @samples = samples
  @g1_counts = g1_counts
  @g2_counts = g2_counts
  @g1_rabunds = counts_to_rabunds g1_counts
  @g2_rabunds = counts_to_rabunds g2_counts
  @color_hex_codes = calc_hex_codes @g1_rabunds, @g2_rabunds
end

Instance Attribute Details

#g1_counts ⇒ Object

Returns the value of attribute g1_counts.



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# File 'lib/iroki/color/two_group_gradient.rb', line 22

def g1_counts
  @g1_counts
end

#g1_rabunds ⇒ Object

Returns the value of attribute g1_rabunds.



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# File 'lib/iroki/color/two_group_gradient.rb', line 22

def g1_rabunds
  @g1_rabunds
end

#g2_counts ⇒ Object

Returns the value of attribute g2_counts.



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# File 'lib/iroki/color/two_group_gradient.rb', line 22

def g2_counts
  @g2_counts
end

#g2_rabunds ⇒ Object

Returns the value of attribute g2_rabunds.



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# File 'lib/iroki/color/two_group_gradient.rb', line 22

def g2_rabunds
  @g2_rabunds
end

Instance Method Details

#calc_hex_codes(g1_rabunds, g2_rabunds) ⇒ Object 



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# File 'lib/iroki/color/two_group_gradient.rb', line 94

def calc_hex_codes g1_rabunds, g2_rabunds
  g1_rabunds.zip(g2_rabunds).map do |ra1, ra2|
    if ra1.zero? && ra2.zero?
      Iroki::Color::GRAY.html
    else
      hex_code ra1, ra2
    end
  end
end

#hex_code(ra1, ra2) ⇒ Object 



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# File 'lib/iroki/color/two_group_gradient.rb', line 84

def hex_code ra1, ra2
  perc = mix_percent ra1, ra2

  col = Iroki::Color::GREEN.mix_with Iroki::Color::BLUE, perc

  col.luminosity = lumin_level ra1, ra2

  col.html
end

#lumin_level(ra1, ra2) ⇒ Object 



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# File 'lib/iroki/color/two_group_gradient.rb', line 68

def lumin_level ra1, ra2
  if ra1 > ra2
    scale_reverse ra1,
                  new_min=@min_lumin,
                  new_max=@max_lumin,
                  old_min=0.0,
                  old_max=1.0
  else
    scale_reverse ra2,
                  new_min=@min_lumin,
                  new_max=@max_lumin,
                  old_min=0.0,
                  old_max=1.0
  end
end

#mix_percent(ra1, ra2) ⇒ Object 



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# File 'lib/iroki/color/two_group_gradient.rb', line 64

def mix_percent ra1, ra2
  1 - percent_of_group1_color(ra1, ra2)
end

#percent_of_group1_color(ra1, ra2) ⇒ Object 



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# File 'lib/iroki/color/two_group_gradient.rb', line 46

def percent_of_group1_color ra1, ra2
  if ra1 > ra2
    1 - scale(ra2 / ra1,
              new_min=0.0,
              new_max=0.5,
              old_min=0.0,
              old_max=1.0)
  elsif ra1 < ra2
    scale(ra1 / ra2,
          new_min=0.0,
          new_max=0.5,
          old_min=0.0,
          old_max=1.0)
  else
    0.5
  end
end