[iText-questions] Datamatrix DM_Extension FNC1 variable length GS1 element

[luc1291]

Hi
Im using the Option DM_EXTENSION for GS1 (Code 128 based) 2D Datamatrix
Barcodes. That works perfectly as long as I am only using not more then one
GS1 element of variable length. Just placed the variable length element at
the end of the 'text' and all is good.
Im using:
com.itextpdf.text.pdf.BarcodeDatamatrix.setOptions(int options)
for setting the DM_EXTENSION
and
com.itextpdf.text.pdf.BarcodeDatamatrix.generate(String text) throws
UnsupportedEncodingException
for generating the code

Working sample:
String text input data:
f.010764016651024611150819100000001422
->
GTIN(01) = 07640166510246
ProdDate(11) = 150819
Charge(10) = 0000001422
Charge is of variable length.

My question. How can I build a barcode with to variable length GS1 elements?
There needs to be a Group Separator tag (according Standard it is FNC1
(ASCII 232)).
How is this done?

It seems all after the . is taken as code and any attempts of placing a
group separator like <FNC1> or ASCII Code 232, etc fails. It is always
interpreted as part of the previous element.

Problem sample, Charge and Serialnumber (S/N) are of variable length:
Input data f.010764016651024611150819100000001422210001782387
-> should be
GTIN(01) = 07640166510246
ProdDate(11) = 150819
Charge(10) = 0000001422
S/N = 0001782387

but barcode reader shows
GTIN(01) = 07640166510246
ProdDate(11) = 150819
Charge(10) = 0000001422210001782387
so S/N and code of it is part of Charge

as mentioned above if I try to place a group separator e.g like this
Input data f.010764016651024611150819100000001422<FNC1>210001782387
->
barcode reader shows
GTIN(01) = 07640166510246
ProdDate(11) = 150819
Charge(10) = 0000001422<FNC1>210001782387
an notes that there is an error in the code

Thanks for any suggestions how to tell the BarcodeDatamatrix.generate that
there is a group separator and not only code (text)



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[luc1291]

Hi
I found a way. Not as nice and handy as I liked but it works.
Anyway, the solution is that the FNC1 group separator code needs to be
placed with unicode
\u001d
this is the information/group separator GS (hex 1d, ascii 29) 'character'







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your business applications. It resolves application problems quickly and
reduces your MTTR. Get your free trial!
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_______________________________________________
iText-questions mailing list
iText-***@lists.sourceforge.net
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iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php

[luc1291]

Hi gopinethi

sample:
you need the code for eg.
(01)07640166510246 (11)150819 (10)0000001422 (21)00176327

the string for the datamatrix.generate(string) needs to contain \u001d for
the <FNC1> separators.
I got the string from an other source and agreed with them that there the
<FNC1> separators are placed with the agreed 'tag' like eg. #FNC1# so the
string looks like this:
f.010764016651024611150819100000001422#FNC1#2100176327
this (or multiple) #FNC1# is now simply replace (with java string.replace)
with \u001d eg:
newstring = inputstring.replace("#FNC1#", "\u001d")
then
datamatrix.generate(newstring)
this will now generate the correct code

hope that helps





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Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/
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