CBF/imgCIF Extensions Dictionary

Draft version 1.5 for comment

[IUCr Home Page] [CIF Home Page] [CBF/imgCIF] [CBFlib]


Image dictionary (imgCIF) version 1.5.4




       The value of _diffrn_detector_element.center[2] is the Y
              component of the distortion-corrected beam centre in
              millimetres from the (0, 0) (lower-left) corner of the
              detector element viewed from the sample side.

              The X and Y axes are the laboratory coordinate system
              coordinates defined in the AXIS category measured
              when all positioning axes for the detector are at their zero
              settings.  If the resulting X or Y axis is then orthogonal to the
              detector, the Z axis is used instead of the orthogonal axis.

              Because of ambiguity about the setting used to determine this 
              center, use of this data item is deprecated. The data item
              which is referenced to the detector coordinate system and not
              directly to the laboratory coordinate system should be used 

Type: float

Mandatory item: no

Enumeration default: 0.0

Category: diffrn_detector_element

HTML version of draft dictionary created by modified version of makedicthtml by B. McMahon from modified version of imgCIF dcitionary 1.3.2 which is subject to the following copyright: