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List:       fop-user
Subject:    Re: Ref-IDs in custom FOP 0.93 extension
From:       Stefan Haberl <stefan.haberl () hvb ! sozvers ! at>
Date:       2007-06-04 12:55:58
Message-ID: loom.20070604T144433-310 () post ! gmane ! org
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Hi,

> I had a look at the rendered PS files and it seems like the PS FOP 
> renderer is producing easily processable output. I'll go ahead and try to 
> use the EPSTranscoder of FOP to render the SVG DOM containing the barcode 
> into EPS and then enrich the original PS file. I'll let you know of the 
> results.

Just a follow up for anybody interested: This worked nicely. I ended up writing
a FOPBarcodePostscriptOutputStream which I can pass to FOP (or use individually
in a separate post-processing step). The Outputstream enriches the original
stream with the barcode, which I build as an SVG DOM Tree and render to PS with
Batik.

This works straight forward as expected using the Batik Transcoder API, except
that I had to add a ImageTranscoder.KEY_PIXEL_UNIT_TO_MILLIMETER Transcoding
Hint manually, as FOP seems to use 72dpi internally whereas Batik (1.6) uses 
96dpi.

Thanks again Jeremias for pointing me towards the right direction,
Stefan


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