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Re: [Imgcif-l] CBF - Adding binary proprietary format header dump
- To: The Crystallographic Binary File and its imgCIF application to image data <imgcif-l@iucr.org>
- Subject: Re: [Imgcif-l] CBF - Adding binary proprietary format header dump
- From: "Herbert J. Bernstein" <yaya@bernstein-plus-sons.com>
- Date: Tue, 25 Sep 2007 21:18:08 -0400 (EDT)
- In-Reply-To: <BAF629B7-03B9-41AC-9322-A49AC6B06FF5@mrc-lmb.cam.ac.uk>
- References: <46F7FCC6.1070704@rayonix.com><BAF629B7-03B9-41AC-9322-A49AC6B06FF5@mrc-lmb.cam.ac.uk>
One important point -- while, strictly speaking, there should be no harm in adding additional binary sections anywhere in a CBF, I believe people have gotten used to finding the image as the first (and in all current cases as the only) binary section. So, it might be a good idea to put such supplemental binary header binary sections after the image, so that packages that are looking for the image don't get confused. Personally I would agree with Harry that an ascii translation of binary header would be easier to work with in checking the format. That could appear before the image with the risk of confusion. Regards, Herbert ===================================================== Herbert J. Bernstein, Professor of Computer Science Dowling College, Kramer Science Center, KSC 121 Idle Hour Blvd, Oakdale, NY, 11769 +1-631-244-3035 yaya@dowling.edu ===================================================== On Mon, 24 Sep 2007, 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@rayonix.com > > 1880 Oak Ave. Ste. 120 Evanston, IL, USA 60201 > > 877.627.9729 847.869.1548 > > _______________________________________________ > > imgcif-l mailing list > > imgcif-l@iucr.org > > http://scripts.iucr.org/mailman/listinfo/imgcif-l > > Harry > -- > Dr Harry Powell, MRC Laboratory of Molecular Biology, MRC Centre, > Hills Road, Cambridge, CB2 2QH > > > > > _______________________________________________ > imgcif-l mailing list > imgcif-l@iucr.org > http://scripts.iucr.org/mailman/listinfo/imgcif-l > _______________________________________________ imgcif-l mailing list imgcif-l@iucr.org http://scripts.iucr.org/mailman/listinfo/imgcif-l
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