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Contents
module Riiif
module Region
module Imagemagick
# decodes requested cooridnates into an imagemagick crop directive
class SquareDecoder
def initialize(image_info)
@image_info = image_info
end
# @return [String] a square region for imagemagick to decode
# (appropriate for passing to the -crop parameter)
def decode
min, max = [@image_info.width, @image_info.height].minmax
offset = (max - min) / 2
if @image_info.height >= @image_info.width
"#{min}x#{min}+0+#{offset}"
else
"#{min}x#{min}+#{offset}+0"
end
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems