Re: [Groff] pspic: Text around picture?

[Patrik Schindler]

Hello Werner,

Am 27.03.2009 um 16:13 schrieb Werner LEMBERG:

> AFAIK, no.


So, I'm again on the front ;-)


> It's much simpler: Just set (vertical) traps at the end of the image
> to reset the margins.


I didn't have the time to search the docs for that, but I had in mind  
that there's some kind of trigger I could use. Thanks for the pointer!


> A quick solution for an image which should appear exactly at the
> position where it is inserted in the source is straightforward.


If the image fits onto the page, I see no problem with that.


> It's far more complicated to do the same for floating images: Just  
> imagine
> that an image no longer fits on the current page and has to be shifted
> around...


You're right. Hm. Pspic simply leaves space. Consequently this is not  
what I intend. This means, there has to be another "if" - the image  
won't fit, pull it onto the next page.


> >  · Handle text around centered or indented pictures,
> Even TeX can't do this...


So that would be a huge plus for groff, won't it? ;-)


> >  · Provide some mechanism to center a picture description text under
> >    the picture (-L|-R|-I also) which also gets added to the margin
> >    calculation ("makes picture taller"),
> I don't really understand this.  Please give an example.


xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxx +---------+ xxxxxxxxxxx
xxxxx |         | xxxxxxxxxxx
xxxxx |         | xxxxxxxxxxx
xxxxx |         | xxxxxxxxxxx
xxxxx |         | xxxxxxxxxxx
xxxxx |         | xxxxxxxxxxx
xxxxx +---------+ xxxxxxxxxxx
xxxxx  pic1: foo  xxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxx


> >  · Provide similar mechanisms for PICtures
> It's basically the same: Put the pic drawing into a diversion so that
> its dimensions get calculated, which can then in turn be used to make
> the text float around the image.  However, there's the same problem as
> with other images, namely, what to do if the pic drawing is larger
> than the remaining space on the current page.


Could not be *that* hard, but I'm not really used to the groff  
registers and many escapes around if's and calculations, which makes  
me feel a bit handicapped ;-) AND I don't have a clue how to  
accomplish that nicely (say: fairly readable in a normal document).  
But that's and exercise for later. First, I'll stick with eps's.


> Below is a first simple try which you could use to start with.


Thank you *very* much! It works basically, great! The picture gets  
placed a bit too far to the right (exact the amount of space between  
text and image on the left side of the image), I'll have a look into  
that later.

May I ask how long you took to write that down?


:wq! PoC