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Re: [Imgcif-l] Where are _diffrn_detector_element.center[1],[2]?

  • To: James Hester <[email protected]>, The Crystallographic Binary File and its imgCIF application to image data<[email protected]>
  • Subject: Re: [Imgcif-l] Where are _diffrn_detector_element.center[1],[2]?
  • From: "Herbert J. Bernstein via imgcif-l" <[email protected]>
  • Date: Mon, 15 Nov 2021 06:44:50 -0500
  • Cc: "Herbert J. Bernstein" <[email protected]>
  • In-Reply-To: <CAM+dB2f4y1Jwy2HLVS-ma13D=SScP9Jwk0+0oXEfs=zQwuSHEQ@mail.gmail.com>
  • References: <CAM+dB2f4y1Jwy2HLVS-ma13D=SScP9Jwk0+0oXEfs=zQwuSHEQ@mail.gmail.com>
They were deprecated in cif_img_1.6, so they are in the deprecated section
of the
dictionary (near the bottom).  Do you need them back for some reason?  --
Herbert

save__diffrn_detector_element.center[1]
    _item_description.description
;             The value of _diffrn_detector_element.center[1] is the *X*
              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
              centre, use of this data item is deprecated.  The data item
              _diffrn_data_frame.center_fast
              which is referenced to the detector coordinate system and not
              directly to the laboratory coordinate system should be used
              instead.

;
    _item.name                  '_diffrn_detector_element.center[1]'
    _item.category_id             diffrn_detector_element
    _item.mandatory_code          no
    _item_default.value           0.0
    _item_sub_category.id         vector
    _item_type.code               float
    _item_related.related_name  '_diffrn_data_frame.center_fast'
    _item_related.function_code   replacedby
    _item_units.code              millimetres

     save_


save__diffrn_detector_element.center[2]
    _item_description.description
;             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
              centre, use of this data item is deprecated. The data item
              _diffrn_data_frame.center_slow
              which is referenced to the detector coordinate system and not
              directly to the laboratory coordinate system should be used
              instead.

;
    _item.name                  '_diffrn_detector_element.center[2]'
    _item.category_id             diffrn_detector_element
    _item.mandatory_code          no
    _item_default.value           0.0
    _item_sub_category.id         vector
    _item_type.code               float
    _item_related.related_name  '_diffrn_data_frame.center_slow'
    _item_related.function_code   replacedby
    _item_units.code              millimetres

     save_







On Mon, Nov 15, 2021 at 12:48 AM James H via imgcif-l <[email protected]>
wrote:

> Hi all,
>
> I noticed that _diffrn_detector_element.centre[1],[2] are missing from
> imgCIF version 1.8.4 (
>
> http://www.bernstein-plus-sons.com/software/CBF/doc/cif_img_1.8.4.html#diffrn_
detector_element
> ).
> Is this an oversight or have they morphed into the
> _diffrn_detector_element.reference_center_* elements?
>
> thanks,
> James.
> --
> T +61 (02) 9717 9907
> F +61> M +61 (04) 0249 4148
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> imgcif-l mailing list
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