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<p class="title">DRAFT DICTIONARY</p>
<p class="title"><font class="smalltitle"></font>CBF/imgCIF Extensions Dictionary</p>
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<p class="title">Draft version 1.5 for comment</p>
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<h5>Image dictionary (imgCIF) version 1.5.4</h5>
<h1>_array_structure.compression_type</h1><b>Name:</b><br /><tt class="cifdefinition">'_array_structure.compression_type'</tt>
<p><b>Definition:</b></p><pre class="cifdefinition">
Type of data-compression method used to compress the array
data.
</pre>
<p><b>Type:</b> ucode</p>
<p class="pack"><b>Mandatory item:</b> no</p>
<br /><b>The data value must be one of the following:</b><br /><br />
<table width="100%"><tr class="cifexample"><td width="50%">
<br /><tt>byte_offset</tt>
</td><td width="50%"> Using the 'byte_offset' compression scheme as per A. Hammersley
and the CBFlib manual, section 3.3.3
</td></tr></table>
<table width="100%"><tr class="cifexample"><td width="50%">
<br /><tt>canonical</tt>
</td><td width="50%"> Using the 'canonical' compression scheme (International Tables
for Crystallography Volume G, Section 5.6.3.1) and CBFlib
manual section 3.3.1
</td></tr></table>
<table width="100%"><tr class="cifexample"><td width="50%">
<br /><tt>none</tt>
</td><td width="50%"> Data are stored in normal format as defined by
_array_structure.encoding_type and
_array_structure.byte_order.
</td></tr></table>
<table width="100%"><tr class="cifexample"><td width="50%">
<br /><tt>packed</tt>
</td><td width="50%"> Using the 'packed' compression scheme, a CCP4-style packing
as per J. P. Abrahams pack_c.c and CBFlib manual, section 3.3.2.
</td></tr></table>
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<br /><tt>packed_v2</tt>
</td><td width="50%"> Using the 'packed' compression scheme, version 2, as per
J. P. Abrahams pack_c.c and CBFlib manual, section 3.3.2.
</td></tr></table>
<br />Enumeration default: </b>none
<p class="pack"><b>Category:</b> <a href="Carray_structure.html" class="catlink">array_structure</a></p>
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HTML version of draft dictionary created by modified version of makedicthtml by B. McMahon
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