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Re: [Groff] Fancier placement of PSPICs?


From: Cedric Sodhi
Subject: Re: [Groff] Fancier placement of PSPICs?
Date: Wed, 7 Mar 2012 19:34:47 +0100
User-agent: Mutt/1.5.21 (2010-09-15)

Thanks Ted, one can really rely on you guys! I'ven't read the other
thread Patrik mentioned, yet, but your suggestion sounds reasonable easy
so I'll try it out right now.

Cedric

On Wed, Mar 07, 2012 at 06:09:18PM -0000, Ted Harding wrote:
> On 07-Mar-2012 Cedric Sodhi wrote:
> > Are there way to generally place an image different from
> > filling a whole page width?
> > 
> > By generically I mean doing so by using PSPIC and without
> > particular knowledge of the sourrounding text and the image's
> > dimension.
> > 
> > By differently I mean, for example, float the image in the
> > text, put multiple images into the same line, etc.
> > 
> > I'm trying to get multiple images into one line and also have
> > text flow arround a floating image.
> > 
> > Do I have to write my own version of PSPIC for something like that?
> 
> Regarding the first query, the general call for .PSPIC is:
> 
> .PSPIC [{-L|-R|-I <n>}] <filename> {<deswid> {<desht>} }
> 
> where:
>   [{-L|-R|-I <n>}]
>   is an optional placement (default is centred):
>   -L : left-justified
>   -R : right-justified
>   -I <n> : indented by a distance <n>
> 
>   <filename> is the name of the EPS file
> 
>   {<deswid> {desht} }
>   is an optional specification of desired width <deswid> and
>   (only if <deswid> is given) an optional height <desht>
> 
> So you can choose placement and size in the .PSPIC line.
> 
> Regarding your further queries, you could think of writing
> your own .PSPIC macro, but in view of the generality of your
> aims, it may be better to approach it with a tailored usage
> of the post-processor request
> 
>   \X'ps: import file llx lly urx ury width [ height ]'
> 
> which positions the bottom left-hand corner of the EPS figure
> at the current point (so use \h'...' and \v'...' to re-position
> it, maybe enclosing the whole in \Z'....' so that you know
> where you are when it's all over). Here, llx lly urx ury are
> of course the BoundingBox coordinates. They can be found by
> examining the %%BoundingBox line of the EPS file, but you
> can also elicit them within groff by
> 
>   .psbb <filename>
> 
> This sets groff registers \n[llx], \n[lly], \n[urx], \n[ury]
> from the %%BoundingBox line, and you can then do what you like.
> 
> "Floating" text round an embedded graphic is not particularly
> straightforward. You could set traps, but in practice I prefer
> toe "hand-craft" it. The basis for this is to use the .mk
> request when the graphic is about to occur, then enter the
> graphic (using \X'ps: import ... ' as above). Then use .rt
> to go back to the line where you were when about to import
> the graphic, then set any changes in page offset (.po) and/or
> line-length (.ll) and/or indentation (.in) to allow for the
> space which is occupied by the graphic, enter the text and,
> when the text has reached the point where it the next line
> will be output below the graphic, re-set to the oroginal
> values using .po, .ll, .in; and then carry on as usual.
> 
> Hoping this helps (it's a potentially big topic!).
> 
> Ted.
> then enter the text
> 
> -------------------------------------------------
> E-Mail: (Ted Harding) <address@hidden>
> Date: 07-Mar-2012  Time: 18:09:15
> This message was sent by XFMail
> -------------------------------------------------



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