[SciPy-user] xplt.eps question/problem?

[baecker at physik.tu-dresden.de]

On Sat, 15 Mar 2003, Travis Oliphant wrote:

[...]
> > BTW: the noepsi=1 version is (for my example) 17KB in size
> > and the one with noepsi=0, i.e. the default,
> > is 280KB, quite a difference!
>
> This is interesting.  This would indicate that running the ps file
> through ghostscript is adding quite a bit of information (could be fonts
> that gist assumes are available while ghostscript doesn't take any
> chances).  I'm not sure though.


According to man ps2epsi:
"
       ps2epsi  uses  gs(1)  to process a PostScript(tm) file and
       generate as output a new file which  conforms  to  Adobe's
       Encapsulated  PostScript  Interchange (EPSI) format.  EPSI
       is a special form of encapsulated PostScript  (EPS)  which
       adds  to  the  beginning  of  the  file  in  the  form  of
       PostScript comments a bitmapped version of the final  dis
       played page.  Programs which understand EPSI (usually word
       processors or DTP programs) can use this bitmap to give  a
       preview  version  on  screen  of the PostScript.  The dis
       played quality is often not very good (e.g.,  low  resolu
       tion,  no colours), but the final printed version uses the
       real PostScript, and thus has the normal PostScript  qual
       ity.

"
> If you use noepsi=1 then does the output .eps file work for you (i.e.
> can you embed the .eps file into another document or does it fill up a
> page)?

Inclusion with latex  both variants work fine.
(I will send you examples off-list)


> I have not fully tracked down the purpose for running gist postscript
> through ps2epsi --- this was done by the folks from LLNL originally.

I am not sure, but to me it does not look as being of such importance
(in the end I personally think that I'd rather
use noepsi=1 as default ...)

Arnd