Sha256: 18a3c3bd38e2f5d48e2cdf5711b581271ec0c323b0e2cb1f9a58e39d51609049
Contents?: true
Size: 1.13 KB
Versions: 2
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Stored size: 1.13 KB
Contents
module Riiif module Size # The width and height of the returned image is scaled to n% of the width and height # of the extracted region. The aspect ratio of the returned image is the same as that # of the extracted region. class Percent < Resize def initialize(info, percentage) @image_info = info @percentage = percentage end attr_reader :percentage # @return [String] a resize directive for imagemagick to use def to_imagemagick "#{percentage}%" end # @return [Integer] the height in pixels def height percent_of(image_info.height) end # @return [Integer] the width in pixels def width percent_of(image_info.width) end # @param [Integer] factor number of times to reduce by 1/2 def reduce(factor) pct = percentage.to_f * 2**factor Percent.new(image_info, pct) end private # @param [Integer] value a value to convert to the percentage # @return [Float] def percent_of(value) value * Integer(percentage).to_f / 100 end end end end
Version data entries
2 entries across 2 versions & 1 rubygems
Version | Path |
---|---|
riiif-2.0.0.beta2 | app/services/riiif/size/percent.rb |
riiif-2.0.0.beta1 | app/services/riiif/size/percent.rb |