Class: Axon::Fit

Inherits:
Object
  • Object
show all
Includes:
Image, Enumerable
Defined in:
lib/axon/fit.rb

Instance Method Summary collapse

Methods included from Image

#crop, #fit, #scale_bilinear, #scale_nearest_neighbor, #to_jpeg, #to_png, #write_jpeg, #write_png

Constructor Details

#initialize(source, width, height) ⇒ Fit

Returns a new instance of Fit.



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# File 'lib/axon/fit.rb', line 6

def initialize(source, width, height)
  @source, @fit_width, @fit_height = source, width, height
end

Instance Method Details

#color_model ⇒ Object 



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# File 'lib/axon/fit.rb', line 14

def color_model
  @source.color_model
end

#components ⇒ Object 



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# File 'lib/axon/fit.rb', line 10

def components
  @source.components
end

#each ⇒ Object 



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# File 'lib/axon/fit.rb', line 26

def each
  r = calc_fit_ratio

  if r > 1
    scaler = NearestNeighborScaler.new(@source, r)
    scaler.each{ |*a| yield(*a) }
  elsif r < 1
    if r <= 0.5 && @source.kind_of?(JPEGReader)
      @source.scale_denom = calc_jpeg_pre_shrink(r)
      r = calc_fit_ratio
    end
    scaler = BilinearScaler.new(@source, r)
    scaler.each{ |*a| yield(*a) }
  else
    @source.each{ |*a| yield(*a) }
  end
end

#height ⇒ Object 



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# File 'lib/axon/fit.rb', line 22

def height
  @source.height * calc_fit_ratio
end

#width ⇒ Object 



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# File 'lib/axon/fit.rb', line 18

def width
  @source.width * calc_fit_ratio
end