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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 _______________________________________________ imgcif-l mailing list imgcif-l@iucr.org http://mailman.iucr.org/cgi-bin/mailman/listinfo/imgcif-l
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