pngqr

PNGQR (Ping-queer?)

Pure Ruby Gem to generate PNG files of QR codes.

Usage

Example:

require 'pngqr'

Pngqr.encode 'https://github.com/andys', :file => 'output.png'

The parameters for encode() are the same as the rqrcode gem's new(), except:

1. we add :file if you want to output to a file instead of returning the PNG as a blob, and

2. you can :scale with an integer parameter and it will scale up the output image by that many times.

3. if you don't supply a :size, we auto-size by testing each size until we find the one that worked. It seems quick enough.

4. :border=>n lets you add an n pixel white border to the PNG

Dependencies

Gems: rqrcode and chunky_png (both pure ruby gems)

See: http://whomwah.github.com/rqrcode/

Contact the author

Andrew Snow [e-mail] Andys^ on irc.freenode.net @andy_snow on the twitter