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	Sun, 19 Feb 2017 00:18:27 -0800 (PST)
Date:	Sun, 19 Feb 2017 11:18:25 +0300
From:	"Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via geda-help AT delorie DOT com]" <geda-help AT delorie DOT com>
To:	geda-help AT delorie DOT com
Subject:	Re: [geda-help] printing to landscape A4 without margins, how ?
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On Sat, Feb 18, 2017 at 11:40:33PM +0100, karl AT aspodata DOT se wrote:
> Karl:
> > How do I print a sch file to a postscript file where the output is
> > supposed to completely fill the page ?
> > 
> > Formely, when gschem produced the postscript itself, I could do that
> > by specifying "without extents". With current gschem I can print,
> > but (probably) since I don't have cups installed, I just get some
> > dumb dialogue where I cannot change anything. It gives a posttscript
> > file in letter size and with some automatic margins.
> 
> Ok, I'll start over. This is a question about the gaf postscript 
> export, not the pdf export.
> 
> I have this small test schematics;
> 
> $ cat tt.sch 
> v 20121203 2
> C 0 0 1 0 0 EMBEDDEDA4liggande.sym
> [
> H 3 25 2 0 -1 -1 0 -1 -1 -1 -1 -1 3
> M 1800,37860
> L 0,37860
> L 0,36060
> H 3 25 2 0 -1 -1 0 -1 -1 -1 -1 -1 5
> M 1800,34260
> L 51840,34260
> L 51840,1860
> L 1800,1860
> L 1800,34260
> H 3 25 2 0 -1 -1 0 -1 -1 -1 -1 -1 3
> M 1800,60
> L 0,60
> L 0,1860
> H 3 25 2 0 -1 -1 0 -1 -1 -1 -1 -1 3
> M 53460,1860
> L 53460,60
> L 51660,60
> H 3 25 2 0 -1 -1 0 -1 -1 -1 -1 -1 3
> M 51660,37860
> L 53460,37860
> L 53460,36060
> ]
> T 4000 31000 9 80 1 0 0 0 1
> ABC
> $
> 
> If I do the obvious thing:
> 
>  gaf export -f ps -p iso_a4 -m 0 -o tt.ps tt.sch
> 
> I get a postscript file which shows fine in gv but at printout, the 
> content is rotated 90degrees relative the paper.

I have also stumbled upon the fact that different programs show
postscript/pdf files differently. Ghostscript is a preprocessing
program in Linux which outputs files to printer drivers (AFAICR),
so you can use it to see your page orientation before printing.

gs file.ps

There are various scripts in the ghostscript distribution that can
help to get what you want. Probably in your case it is simplest to
use ghostscript itself to change page orientation. The
work-around command is:

  gs -o x.ps -sDEVICE=pswrite -c '<</Orientation 1>> setpagedevice' -f tt.ps

The variable '/Orientation' can take values as follows:
  0-3 just to rotate page
  0i-3i to additionally exchange x<->y

Play with it and use gs to see what it does.

> The problem does not appear when then schematics rotated in gschem, 
> i.e. when the in gschem view on screen is "portrait".
> 
> Now, is this a bug in the cairo postscript routines or have I called 
> gaf export in the wrong way ?

It's probably a bug. I'm not certain.

HTH

-- 
  Vladimir

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