[scribus] barcodes

john Culleton John at wexfordpress.com
Thu May 15 15:14:36 UTC 2014


On Wed, 14 May 2014 12:40:09 -0400
Gregory Pittman <gpittman at iglou.com> wrote:

> I think it's worth pointing out that there is
> more than one way to skin a barcode.
> 
> The main thing that the barcode generator
> offers is convenience. It's not the only way,
> and in some ways not the best method for
> generating codes.
> 
> Barcodes follow a set of rules that typically
> involve the following:
> 
> 1. Thin line elements
> 2. Thick line elements
> 3. Thin space elements
> 4. Thick space elements
> 5. Starting and stopping codes, to show where a
> barcode begins, and where it ends
> 6. Checksum elements
> 7. Some restrictions on which characters can be
> coded
> 
> Once you are able to get access to the rules of
> a particular code, it is not difficult (I
> wouldn't call it trivial) to create such codes
> within Scribus.
> 
> For example, the wiki contains some work I have
> done in regard to Code39:
> 
> http://wiki.scribus.net/canvas/Generating_a_Code39_Barcode
> http://wiki.scribus.net/canvas/A_Standard_Form_with_Barcodes_and_Custom_Entries
> 
> The latter page shows how to incorporate
> barcode generation as a function (makebars) in
> a larger script.
> 
> Mathematicians and coders talk about elegance
> in some formula or code. The elegance in these
> scripts, I think, is that they are native
> Scribus generators of barcodes, using lines and
> spaces of precise width and numerically spaced
> on the page. The length of the lines is also
> user definable, as is the font used when you
> wish to show the code in numerical format.
> 
> Greg
> 
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If you need bar codes for a book cover,
encompassing both the ISBN and the price code, the
easiest way is to use the Bookland web page.
Unfortunately the site is down for the moment. 
If anyone needs the program they can write me and
I will send them the tarball. 

-- 
John Culleton
Wexford Press
Free list of books for self-publishers:
http://wexfordpress.net/shortlist.html
PDF e-book: "Create Book Covers with Scribus"
available at
http://www.booklocker.com/books/4055.html



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