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module IiifPrint
# Module for text extraction (OCR or otherwise)
module TextExtraction
class WordCoordsBuilder
# @params words [Array<Hash>] an array of hash objects that have the keys `:word` and `:coordinates`.
# @params width [Integer] the width of the "canvas" on which the words appear.
# @params height [Integer] the height of the "canvas" on which the words appear.
# @return [String] a JSON encoded string.
def self.json_coordinates_for(words:, width: nil, height: nil)
new(words, width, height).to_json
end
def initialize(words, width = nil, height = nil)
@words = words
@width = width
@height = height
end
# Output JSON flattened word coordinates
#
# @return [String] JSON serialization of flattened word coordinates
def to_json
coordinates = {}
@words.each do |w|
word_chars = w[:word]
word_coords = w[:coordinates]
if coordinates[word_chars]
coordinates[word_chars] << word_coords
else
coordinates[word_chars] = [word_coords]
end
end
payload = { width: @width, height: @height, coords: coordinates }
JSON.generate(payload)
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems