Excellent How do you plug that with a camera and image recognition system?
> Hi, > > didnt know Barcodes are so easy to implement in Smalltalk. So I started with > EAN13 barcode > together with unit tests. Project lives on: > > http://smalltalkhub.com/#!/~TorstenBergmann/Barcode > > You can also load it using the config browser in Pharo 2.0 now. > > It is already usable - thanks to the power of Pharo. Short Guide: > > ------------------------------------------------------------------------------------------------ > To instantiate: > > BarcodeEAN13 value: '2109876543210' > > You can get the binarySequence of a barcode: > > (BarcodeEAN13 value: '2109876543210') binarySequence > > calcuate the checksum (last digit: > > (BarcodeEAN13 value: '2109876543210') computeChecksum > > or visualize the barcode: > > BarcodeEAN13 example asForm asMorph openInWorld > > or to write to a file: > > PNGReadWriter putForm: BarcodeEAN13 example asForm onFileNamed: > 'sample.png' > > ------------------------------------------------------------------------------------------------ > > Feel free to extent with other barcode types. > > Have fun > T. > > <sample.png>
