On 30.06.2010 16:39:27 Martin Edge wrote:
> Hey Jeremias,
> 
> Bugger on the transparency - I suppose the printer would need to know how to
> deal with it. 
> 
> The reason I'm using postscript (and thankfully no longer PCL :)) - is I
> configure tray selections and duplexing, and PDF can't easily help me there.
> 
> 
> I will give your latest snapshot a try and see what happens - (I dont think
> I have a particularly old version) - and I will see how we go. 
> 
> As far as the painting of the barcode, I currently store it in the
> region-start, config as such;
> 
>        <fo:simple-page-master master-name="basicPage" page-height="297mm"
> page-width="210mm" margin-top="5mm" margin-bottom="5mm" margin-left="0mm"
> margin-right="3mm">
>           <fo:region-body margin-top="0mm" margin-bottom="5mm"
> margin-left="8mm" margin-right="0mm" />
>           <fo:region-after extent="5mm" />
>           <fo:region-start extent="8mm" />
>         </fo:simple-page-master>
> 
> So I suppose my options in this regard are;
> 1) see if there is a way to control which region gets loaded when (does
> order have any importance within the simple-page-master?)

FOP can't handle z-index, yet. :-(

> 2) Try to move what I currently use within region-start into region-body 

That's what I recommend if that's possible with your document. Then you
could use a fixed positioned block-container (absolute-position="fixed").

Option 3) Reorder the region-before after the region-body in the
intermediate format. Yuck. ;-)

> Will see how we go, if you have any advice on my two options, I'd love to
> hear it - might save me some time ;)
> 
> On a separate note; as I'm learning different printers I'm finding
> Postscript command docs - would shortcuts on how to achieve certain goals
> using some printers have some value on the wiki ?

Useful content for the Wiki is always welcome.

> Thanks!
> Martin
> 
> 
> 
> -----Original Message-----
> From: Jeremias Maerki [mailto:[email protected]] 
> Sent: Thursday, 1 July 2010 12:26 AM
> To: [email protected]
> Subject: Re: transparency in images
> 
> Hi Martin
> 
> First problem: PostScript doesn't support transparency. It only supports
> image masks using an array of mask colors, but that's not currently
> implemented in FOP. PDF has support for both and both are available in
> FOP.
> 
> The latest snapshot of my PDF plugin supports rendering PDF to
> PostScript (and every other output format supported by FOP) but only as
> far as Apache PDFBox can handle the PDF minus some potential
> restrictions of our PSGraphics2D.
> 
> Can't you try to paint the barcode and such after the page content so it
> lies above the original content?
> 
> On 30.06.2010 15:59:15 Martin Edge wrote:
> > Hey Guys,
> >  
> > Quick question - if I use a PNG as an image, is it's transparency
> properties
> > taken into account?
> >  
> > I am attempting to insert a PDF file as in within my document, however
> using
> > the PDF plugin, means it doesn't seem to happily output on postscript, so
> I
> > have had to convert the file to a JPG and use that. 
> >  
> > I generate barcodes and other information that sites on the outside of the
> > document, so if I use the image for the full page, it blanks out the
> barcode
> > and other text, and by shrinking the form it looks a little silly.
> >  
> > So, I was thinking, if transparency works, would I be able to see the
> > barcode, given it's in theory underneath the image?
> >  
> > Thanks
> > Martin
> 
> 
> 
> Jeremias Maerki
> 
> 
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Jeremias Maerki


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