[6366] in s-news-athena

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Re: Interactive preparation of presentation graphics from S

daemon@ATHENA.MIT.EDU (John Wallace)
Thu Feb 2 17:21:07 1995

Date: Thu, 2 Feb 1995 14:03:14 -0800 (PST)
From: John Wallace <jrw@fish.washington.edu>
To: Scott Blachowicz <scott@statsci.com>
Cc: S-news@utstat.toronto.edu
In-Reply-To: <m0ra6c1-000LgWC@arugula.statsci.com>



On Thu, 2 Feb 1995, Scott Blachowicz wrote:

> 
> >>>>> "John" == John Wallace <jrw@fish.washington.edu>;
> >>>>>           in S-news
> 
>  John> Postscript and metafiles are both vector based, the problem with 
>  John> postscript is the lack of a standard flavor that ports well.
> 
> I don't understand what you mean by this last "problem".  The problem with
> trying to edit Postscript is that it is a full programming language, so you'd
> need a Postscript language interpreter in your editor.  There isn't really any
> concept of graphical objects in Postscript - it is geared towards operators
> that put ink down on paper.  Not a whole lot of need to edit the ink. :-)
> 

CorelDraw has a Postscript language interpreter, but only for the Corel 
flavor.

In CorelDRAW I can use the drawing tools to hand make a plot with points 
and lines.  I can then export that to encapusulated postscript (corel 
flavor).  If I look at the file it has the normal postscript language 
text.  I can then read that file back into Corel and 'Ungroup' the 
elements and manipulate any point or line.  So clearly, if Splus wrote 
out corel flavor postscript it could be read in and manipulated just as 
the vector based windows metafile can.  (In fact, CorelTRACE, which 
vectorizes bitmap pictures, writes out to this corel flavor postscript 
for import into CorelDRAW.)

-jrw

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