dmtx
Pure Ruby Data Matrix generator
Installation
In your Gemfile:
gem 'dmtx'
Usage
dmtx = Dmtx::DataMatrix.new('Chunky Bacon')
puts dmtx.to_s
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dmtx.width
=> 16
dmtx.height
=> 16
dmtx.encoding
=> :ascii
dmtx.encoded_message
=> [68, 105, 118, 111, 108, 122, 33, 67, 98, 100, 112, 111,
62, 103, 49, 93, 99, 53, 117, 202, 250, 186, 232, 14]
# Generate SVG
dmtx.to_svg
=> "<svg xmlns= ..."
# SVG default options
dmtx.to_svg(dim: 256, pad: 2, bgcolor: nil, color: '#000')
# Generate PNG with given module pixel size
dmtx.to_png
=> <ChunkyPNG::Image 160x160>
# raw PNG data
dmtx.to_png.to_s
=> "\x89PNG..."
# PNG default options
dmtx.to_png(mod: 8, pad: 2, bgcolor: nil, color: '#000')
# Integer representation
dmtx.to_i
=> 77194835539484717974890203635482091341863808501307723137647139603919014133759
# Binary representation
dmtx.to_i.to_s(2)
=> "1010101010101010
1011101010000011
1101011111110110
1001101011101001
1001100101001110
1011101111110011
1001011001001000
1000100001110101
1011000110111100
1011001001101011
1100000111111100
1010110110101011
1001101001000000
1111001010001101
1010111001110010
1111111111111111"
# Choose encoding
Dmtx::DataMatrix.new('Chunky Bacon', encoding: :txt)
# GS1 DataMatrix
Dmtx::DataMatrix.new("\x1d01095011010209171719050810ABCD1234\x1d2110", encoding: :gs1)