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

  • To: "Herbert J. Bernstein" <yayahjb@gmail.com>
  • Subject: Re: [Imgcif-l] Where are _diffrn_detector_element.center[1],[2]?
  • From: James H via imgcif-l <imgcif-l@iucr.org>
  • Date: Tue, 16 Nov 2021 10:43:12 +1100
  • Cc: James H <jamesrhester@gmail.com>, The Crystallographic Binary File and its imgCIF application to image data<imgcif-l@iucr.org>
  • In-Reply-To: <CABcsX269mC1T7tvhWSSp2OefJDBZ+2tiL-u_6V0erdUSdTb5aA@mail.gmail.com>
  • References: <CAM+dB2f4y1Jwy2HLVS-ma13D=SScP9Jwk0+0oXEfs=zQwuSHEQ@mail.gmail.com><CABcsX269mC1T7tvhWSSp2OefJDBZ+2tiL-u_6V0erdUSdTb5aA@mail.gmail.com>
Thanks Herbert, no I don't need them especially, I was just concerned that
they had been left out mistakenly because I only looked in the
diffrn_detector_element section. Should have just searched of course.

On Mon, 15 Nov 2021 at 22:45, Herbert J. Bernstein <yayahjb@gmail.com>
wrote:

> 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 t
o 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 t
o 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 <imgcif-l@iucr.org>
> 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 (02) 9717 3145
>> M +61 (04) 0249 4148
>> _______________________________________________
>> imgcif-l mailing list
>> imgcif-l@iucr.org
>> http://mailman.iucr.org/cgi-bin/mailman/listinfo/imgcif-l
>>
>

--
T +61 (02) 9717 9907
F +61 (02) 9717 3145
M +61 (04) 0249 4148
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