Re: CGM and SGML

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2 total messages Started by M16302 Thu, 21 Jan 1993 21:15

#562

Author: M16302
Date: Thu, 21 Jan 1993 21:15

12 lines
1049 bytes

Can anyone tell me if and what happens if an SGML imports a CGM graphic.
Can it still be editited, at least in theory. Also, could someone tell me
the relationship, if any, between ODA and SGML.  Thanks.
 
Robert B. Shain                              EMAIL: RSHAIN @MITRE.ORG
The MITRE Corporation                        Voice: (703)883-5592
Center for Intellignence & Special Programs  FAX: (703)883-6991
Mailstop W955
7525 Colshire Drive                         "My other computer is a Cray"
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                                            "My other sport is ping pong"

Re: CGM and SGML

#565

Author: Erik Naggum
Date: Sat, 23 Jan 1993 20:14

35 lines
1836 bytes

[Robert B. Shain]
:
|   Can anyone tell me if and what happens if an SGML imports a CGM graphic.
|   Can it still be editited, at least in theory.

I don't really understand what you're asking about, so let me make a couple
stabs in the dark.  If I miss, please let me know.

SGML is a language, not a piece of software, so SGML as such doesn't import
CGM files.  However, SGML qua language has the ability to make a reference
to something and say that "this is in a special notation called CGM,
defined in so-and-so standard", so that an SGML implementation that
supports notations and supports the CGM notation may know what to do with
it.  The SGML document that contains a reference to the CGM file and
notation information about it (and thus effectively "imports" it), will
still be the human-readable, editable text file it was before the CGM file
was referenced.

Note also that CGM files come in three coding flavors: binary, character,
and "clear text".  The clear text files are certainly editable.

Hope this helps, anyway.

|   Also, could someone tell me the relationship, if any, between ODA and
|   SGML.  Thanks.

I don't think I want to do that just now.  Sorry.

Best regards,
</Erik>
--
Erik Naggum                 ISO  8879 SGML                    +47 295 0313
Oslo, Norway                ISO 10744 HyTime          Watch this ^ space
<erik@naggum.no>            ISO  9899 C                 Memento, terrigena
<SGML@ifi.uio.no>           ISO 10646 UCS             Memento, vita brevis

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