Class: Borealis::Cluster

Inherits:
Object
  • Object
show all
Defined in:
lib/borealis/cluster.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(center) ⇒ Cluster

Returns a new instance of Cluster.



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# File 'lib/borealis/cluster.rb', line 5

def initialize(center)
  @center = center
  @colors = []
end

Instance Attribute Details

#center ⇒ Object (readonly)

Returns the value of attribute center.



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# File 'lib/borealis/cluster.rb', line 3

def center
  @center
end

#colors ⇒ Object (readonly)

Returns the value of attribute colors.



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# File 'lib/borealis/cluster.rb', line 3

def colors
  @colors
end

Instance Method Details

#recenter! ⇒ Object 



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# File 'lib/borealis/cluster.rb', line 10

def recenter!
  red_sum = green_sum = blue_sum = 0

  colors.each do |color|
    red_sum += color.red
    green_sum += color.green
    blue_sum += color.blue
  end

  old_center = @center
  @center = Color.new(
    red_sum / colors.length,
    green_sum / colors.length,
    blue_sum / colors.length
  )

  @colors.clear

  old_center.rgb_distance_to @center
end