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Re: CIF or NOT CIF, (or nothing)

• To: Multiple recipients of list <imgcif-l@bnl.gov>
• Subject: Re: CIF or NOT CIF, (or nothing)
• From: Peter Keller <bsspak@bath.ac.uk>
• Date: Wed, 20 Dec 1995 08:38:40 -0500 (EST)

On Wed, 20 Dec 1995, Andy Hammersley wrote:

>                                                            For 4, if the
>    "header" section is very similar to CIF, then an extraction tool could be
>    used to extract the header section and create an ASCII file which could 
>    then be used with standard CIF tools. If the format used is well
>    defined and simply related to CIF (whilst being "binary"), this extraction 
>    tool could be very simple to write, and be very portable.

This is also a good approach, and I would add just one comment: There
should be an official version of such a tool (no matter how simple it is),
against which the operation of other software can be checked. This tool
should be maintained as the specification evolves. There are two reasons
for this, that occur to me:

(1) If every image user writes their own from scratch, you will be
surprised at how something which you thought was obvious has been
completely misunderstood by someone else. 

(2) Actually writing software while the specification is being drawn up,
means that implementation issues have a better chance of being spotted
early on. 

Season's greetings,
Peter.

========================================================================
Peter Keller.            \ 
Dept. of Biology and      \ "It is a pity that people are being killed
    Biochemistry,          \  by my guns"
University of Bath,         \ 
Bath, BA2 7AY, UK.           \          --- Mikhail Kalashnikov
------------------------------\-----------------------------------------
Tel. (+44/0)1225 826826 x 4302 | Email: P.A.Keller@bath.ac.uk (Internet)
Fax. (+44/0)1225 826449        |   P.A.Keller%bath.ac.uk@UKACRL (BITNET)
========================================================================

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