[Imgcif-l] Proposed Dictionary Changes for imgCIF dictionary

[Herbert J. Bernstein]

Several imgCIF dictionary changes were requested at the recent workshop
at BNL:

# New tags are needed to handle sparse pixel data, such as masks and
replacement values for overloaded pixels, e.g. tags to allow an
image to be presented as a list, rather than as an array.
# New tags are needed to report monitor values and other scan
dependent overall image data.
# Tags are needed for versioning.

Draft proposals on each of these items have been prepared.  The
sparse pixel data proposal in the form of a new "background-
offset-delta (BOD)" compression was posted to this list recently.

A new proposal for reporting monitor values and the proposal for
versioning put forward in 2007 have been incorporated in new
proposed DIFFRN_SCAN_FRAME_MONITOR and VARIANT
categories in a draft imgCIF dictionary:

http://www.medsbio.org/meetings/BNL_May08_imgCIF_Workshop_Report_files/cif_img_1.6_25May08.html


Comments, corrections and suggestions would be appreciated.

Regards,
   Herbert
-- 
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  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 at dowling.edu
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