Re: [MLUG] printing barcodes

["Mark Rages" <EMAIL:PROTECTED>]

On 11/18/06, Mike Miller <EMAIL:PROTECTED> wrote:
> On Fri, 17 Nov 2006, Jonathan King wrote:
>
> > There were LIMS vendors at Neurosciences for the past few years, and
> > there is a certain charm to having a system that can Just Work and
> > handle all of this stuff (and, in all likelihood, make labels for all
> > your samples and such as well).
>
> Printing barcodes for lab samples would be a very nice feature for us.
> I'm guessing that there is another way to get this done using something
> FOSS without resorting to the LIMS.  Does anyone know of such a thing?
>
> We'd need to be able to generate a bar code on the fly in a web browser.
> It doesn't sound like a hard problem, but it might be.
>
> Maybe this will work:
>
> http://kde-apps.org/content/show.php?content=9924
>
> It says "The generated barcodes can be directly printed or you can export
> them into images to use them in another application."  Which sounds like
> what we want.  We would want to read data from an SQL database and
> generate an image in the browser window.
>
> Mike

To automatically generate barcodes, use a commandline app:  GNU
barcode.  Perhaps installed on your system already.

http://www.gnu.org/software/barcode/barcode.html

One problem I had with this is it generates postscript output.  This
works fine when printed on a high-resolution printer.  But for
low-resolution media, raster output works better (each bar is a fixed
number of pixels).   Here's a little Python script to do it:
http://vivara.net/blog/?p=19

Regards,
Mark
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