Class: FoggyMirror::Processor

Inherits:
Object
  • Object
show all
Defined in:
lib/foggy-mirror/processor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(image_path, resolution: DEFAULT_RESOLUTION, overlap: 0.5, distribution: nil, random_offset: 0.5, random: Random.new, adapter: default_adapter, adapter_options: {}) ⇒ Processor

Returns a new instance of Processor.



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# File 'lib/foggy-mirror/processor.rb', line 7

def initialize(image_path, resolution: DEFAULT_RESOLUTION, overlap: 0.5, distribution: nil, random_offset: 0.5, random: Random.new, adapter: default_adapter, adapter_options: {})
  @image_path = image_path

  @resolution = resolution
  @overlap = overlap
  @distribution = distribution
  @random_offset = random_offset

  @random = random
  @adapter = resolve_adapter(adapter).new(image_path, **adapter_options)
end

Instance Attribute Details

#adapter ⇒ Object (readonly)

Returns the value of attribute adapter.



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# File 'lib/foggy-mirror/processor.rb', line 5

def adapter
  @adapter
end

#image_path ⇒ Object (readonly)

Returns the value of attribute image_path.



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# File 'lib/foggy-mirror/processor.rb', line 5

def image_path
  @image_path
end

#overlap ⇒ Object (readonly)

Returns the value of attribute overlap.



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# File 'lib/foggy-mirror/processor.rb', line 5

def overlap
  @overlap
end

#random ⇒ Object (readonly)

Returns the value of attribute random.



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# File 'lib/foggy-mirror/processor.rb', line 5

def random
  @random
end

#random_offset ⇒ Object (readonly)

Returns the value of attribute random_offset.



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# File 'lib/foggy-mirror/processor.rb', line 5

def random_offset
  @random_offset
end

#resolution ⇒ Object (readonly)

Returns the value of attribute resolution.



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# File 'lib/foggy-mirror/processor.rb', line 5

def resolution
  @resolution
end

Instance Method Details

#base_color ⇒ Object 



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# File 'lib/foggy-mirror/processor.rb', line 19

def base_color
  @base_color ||= Color.new(adapter.dominant_color)
end

#blobs ⇒ Object 



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# File 'lib/foggy-mirror/processor.rb', line 31

def blobs
  samples = color_samples

  increment = 1.0 / (resolution - 1)

  blobs = resolution.times.with_object([]) do |y, blobs|
    resolution.times do |x|
      xp = x * increment + increment * random_offset * (random.rand - 0.5)
      yp = y * increment + increment * random_offset * (random.rand - 0.5)
      r = increment * (1 + overlap)
      color = samples[y * resolution + x]

      blobs << Blob.new(x: xp, y: yp, r: r, color: color)
    end
  end

  case @distribution.to_s.downcase
  when 'shuffle'
    blobs.shuffle(random: random)
  when 'spiral_in'
    spiral_in(blobs)
  when 'spiral_out'
    spiral_in(blobs).reverse
  when 'scan_reverse'
    blobs.reverse
  when 'brightness'
    blobs.sort_by { |b| b.color.brightness }
  when 'brightness_reverse'
    blobs.sort_by { |b| 255 - b.color.brightness }
  else
    blobs
  end
end

#color_samples ⇒ Object 



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# File 'lib/foggy-mirror/processor.rb', line 69

def color_samples
  @color_samples ||= adapter.color_samples(resolution)
end

#data_uri ⇒ Object 



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# File 'lib/foggy-mirror/processor.rb', line 65

def data_uri
  @data_uri ||= adapter.data_uri(resolution)
end

#to_css(hash: false) ⇒ Object 



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# File 'lib/foggy-mirror/processor.rb', line 23

def to_css(hash: false)
  CSS.new(self).render(hash: hash)
end

#to_svg(strategy: nil) ⇒ Object 



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# File 'lib/foggy-mirror/processor.rb', line 27

def to_svg(strategy: nil)
  SVG.new(self).render
end