[Imgcif-l] CBF - Adding binary proprietary format header dump

Justin Anderson justin at rayonix.com
Mon Sep 24 20:51:33 BST 2007


Hi Harry, thanks for the reply.

We were wanting to dump in our binary header so that we could read it 
directly in to the marccd program and be able to recover the entire 
original header that way (regardless of which of our header items are 
mapped to CIF header fields).

What were your concerns with having it in the file?

Regards,

Justin


On 09/24/2007 02:38 PM, harry powell wrote:
> Hi
> 
> I don't understand why you'd want to add the binary header, to be  
> honest. I can see why you might want to have the contents of the  
> header as an ASCII comment section - but I think this should just be  
> a check while developing the file format.
> 
> Could you elaborate why you'd want it there?
> 
>> Hello everyone,
>>
>> We here would, in fact, like to add our binary header to the CBF file.
>> Should that just go into an additional binary section, with MIME  
>> header
>> and all of that?  If so, is there any recommendation as to how we can
>> refer to it in the CIF headers so that I can distinguish between the
>> binary image data and our binary header data?  My inclination is to  
>> add
>> the ".header_convention" column to my "_array_data" loop and fill  
>> it in
>> with "RAY_1.0" or something like that for the our binary header and  
>> with
>>   an empty value "" for the image data.
>>
>> e.g. :
>>
>> loop_
>> _array_data.array_id
>> _array_data.binary_id
>> _array_data.header_convention
>> _array_data.data
>>   ARRAY1 1 RAY_1.0
>> ;
>> --CIF-BINARY-FORMAT-SECTION--
>> <<MIME header for Rayonix binary header dump>>
>> <<Rayonix binary header dump>>
>> --CIF-BINARY-FORMAT-SECTION----
>> ;
>>   ARRAY2 2
>> ;
>> --CIF-BINARY-FORMAT-SECTION--
>> <<MIME header for image binary data>>
>> <<Image binary data>>
>> --CIF-BINARY-FORMAT-SECTION----
>> ;
>>
>>
>>
>>
>> Regards,
>>
>> -- 
>> Justin Anderson                    Rayonix, LLC (Formerly Mar USA)
>> Software Engineer                  justin at rayonix.com
>> 1880 Oak Ave. Ste. 120             Evanston, IL, USA 60201
>> 877.627.9729                       847.869.1548
>> _______________________________________________
>> imgcif-l mailing list
>> imgcif-l at iucr.org
>> http://scripts.iucr.org/mailman/listinfo/imgcif-l
> 
> Harry


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