QR Codes now available on the Google Chart API
July 10th, 2008 | Published in Google Code
You can easily render 2D bar codes, known as QR Codes, with the Google Chart API, along with pie charts and bar graphs. If you haven't seen a QR Code before, you are looking at one on the right hand side (To see more, do an image search for "QR Code".)QR Codes are a popular type of two-dimensional barcode. You can encode URLs, contact information, etc. into a black-and-white image like the one on the right. A QR-Code-enabled device can later scan the image and read back the original text. Learn more about QR Codes from Google Print Ads. If you don't have a reader Google also offers a QR Code decoder library: Zebra Crossing (ZXing).
This is how you can creating these with the Google Chart API:
Simply, there is a new chart type,
qr, with attributes to tell the service what to produce:
cht=qr
chl=
choe=
hello and world is written as %20 in the following example.