From Ted.Harding@nessie.mcc.ac.uk  Fri Oct 30 02:20:36 1998
From: Ted.Harding@nessie.mcc.ac.uk ( (Ted Harding))
Date: Fri, 30 Oct 1998 02:20:36 -0000 (GMT)
Subject: EPS
In-Reply-To: <98Oct29.170631est.13465@mailgate.bank-banque-canada.ca>
Message-ID: <XFMail.981030022036.Ted.Harding@nessie.mcc.ac.uk>

On 29-Oct-98 Paul Gilbert wrote:
> Perhaps this has been mentioned and I wasn't paying attention. When I
> try to import a postscript file (which is EPS according to the R help on
> postscript) my Framemaker filter chokes. If I simply edit the first
> line of the file to put
> 
> %!PS-Adobe-3.0 EPSF-3.0
> rather than
> %!PS-Adobe-3.0
> 
> it works just fine. It sure would be simpler if the postscipt driver
> put this in the file.

It shouldn't have to. The PostScript Document Structuring Conventions
allow both forms "%!PS-Adobe-3.0" and "%!PS-Adobe-3.0 EPSF-3.0" with
the rider "Document composition programs should not use these keywords
[namely "EPSF-3.0" and others] when producing a document intended for
printing or display. Instead, they should use only the "%!PS-Adobe-3.0"
comment. Illustration applications may also use the EPSF-3.0 keyword."

Note "may also use". Since an EPS file can be recognised anyway by the
presence of %%BoundingBox somewhere, the EPSF-3.0 is not necessary.

Forcing R to produce "!PS-Adobe-3.0 EPSF-3.0" could break
printing/display software which conforms to the DSC according to the
above quote. The limitations of one program (Framemaker) should not
be used as a reason for producing output which could defeat compliant
software.

However, I wouldn't be against having "EPSF-3.0" as a user-selectable
option.

Best wishes,
Ted.

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E-Mail: (Ted Harding) <Ted.Harding@nessie.mcc.ac.uk>
Date: 30-Oct-98                                       Time: 02:20:36
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EPS
 (Ted Harding