setting 128 barcode bar width in zxing

[Sachin Kulshrestha]

Hi,

I've been on this for some time, would be extremely helpful if you can answer:

I need to add barcode bar size while generating barcode in zxing library's Code128writer.

I read the code and documentation but didn't find a suitable way.
the required bar width is 15mil, does zxing provide such functionality?

[Lachezar Dobrev]

ZXing creates Bar-Code rasters (black-and-white matrices).
The mil is when printing the bar-codes, which is not covered in
ZXing (it's your task).

When generating the bar-code request a width of 0px, which will
generate the least possible size (width wise). Then you can scale the
image using 1px -> 15 mil scaling, which would be around 66.7 ppi
(pixels per inch) if I am not badly mistaken (1mil is 0.001 inches
right?).

Alternatively check the printable size that you have available.
Let's say you have 2 inches available. That means you have 2000 mils
available for the bar-code, which means you have about 130 pixels
available, and you can request ZXing to generate 130 pixels wide
bar-code that you would scale 100% in your document.

HTH

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