Path: utzoo!attcan!uunet!motcid!derosa
From: derosa@motcid.UUCP (John DeRosa)
Newsgroups: comp.lang.postscript
Subject: Re: EPS and PS, the difference?
Message-ID: <1837@diamond2.UUCP>
Date: 23 Mar 90 18:13:15 GMT
References: <1816@diamond2.UUCP> <133322@sun.Eng.Sun.COM>
Distribution: comp
Organization: Motorola Inc., Cellular Infrastructure Div., Arlington Heights, IL
Lines: 49

henry@angel.Sun.COM (Henry McGilton--Software Products -- R.I.P.) writes:

>In article <1816@diamond2.UUCP>, derosa@motcid.UUCP (John DeRosa) writes:
>    *  ......code starting with #! Adobe.
>That should read something like   %!PS-Adobe

You are of course correct, working from memory (and being 
PostScript stupid) makes for errors like this.

>    *  SIDE ISSUE: If I have a PS file from Interleaf, I can 
>    *  print it on the sun with the lpr command and I get the 
>    *  picture/document (not the PS code).  If I try the 
>    *  same file on the mac and print it with a text editor
>    *  like Edit, I get the PS code printout, not the 
>    *  picture/document (downloading it with Widgets works
>    *  fine).  Why the difference?
>Chances are some prolog file is missing from the Mac version.

No, that's not it.  To start with, this is a sun document in PS.
I get it to the Mac and can download it to the Laser just fine.
But, if I just try to print it (i.e. using a text editor) I don't
get the real document, I get a listing of the PS code.  It would 
appear that the file is just fine PS, its something in the sending
that causes the laser to ignore the %!PS-Adobe in the first line that
should indicate "here comes postscript code, please draw a picture".
I had heard once that PS must be in a particular font!?  That would
not seem to be the problem, I'm only sending ASCII to the printer.

>I suspect that this is done to work around `deficiciencies'
>in the version of TranScript shipped with the Sun system.
>If a PS file starts with  %!PS-Adobe 2.0 or whatever, TranScript
>may attempt to perform page reversal on the file.  The
>version of TranScript shipped with Sun doesn't correctly
>handle PostScript programs included inside other PostScript programs.
>There's supposed to be a  %%BeginDocument / %%EndDocument
>convention to stop the page reversal program from trying to
>reverse pages in included documents, but TranScript doesn't
>implement this feature, so psrev breaks.

Thanks for the info.

Unfortunately, I still don't know how to convert Interleaf Graphics
to the Mac, I may never find a way.
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
=    John DeRosa, Motorola, Inc, Cellular Infrastructure Division           =
=                   e-mail: ...uunet!motcid!derosaj                         =
= I do not hold by employer responsible for any information in this message =
=      nor am I responsible for anything my employer may do or say.         =
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