[Imgcif-l] CBFlib-0.8.1.1 with fix for cbf_get_detector_normal

[Herbert J. Bernstein]

The cbf_simple routines such as cbf_get_detector_normal were not
applying nested rotations to axis offsets.  A re-release of
CBFlib 0.8.1 as CBFlib 0.8.1.1 with a fix has been posted to
sourceforge

http://downloads.sf.net/cbflib/CBFlib-0.8.1.1.tar.gz

A similar 0.9 re-release is in preparation.  The SVN repository
has been updated for both CBFlib and CBFlib_bleeding_edge.

   -- HJB

=====================================================
  Herbert J. Bernstein, Professor of Computer Science
    Dowling College, Kramer Science Center, KSC 121
         Idle Hour Blvd, Oakdale, NY, 11769

                  +1-631-244-3035
                  yaya at dowling.edu
=====================================================

On Sat, 14 Aug 2010, Herbert J. Bernstein wrote:

> Found it.  The rotation matrices were calculated correctly, but were
> not being applied to any translation vectors.  I need
> to check the order of application of matrices and then I will
> prepare a corrected 0.8.1.1 kit and 0.9.1 kit.  I'll send you and the
> entire imgcif-l list a heads-up when they are ready to try.
>
> Thank you very much for spotting this error.
>
>
> =====================================================
> Herbert J. Bernstein, Professor of Computer Science
>   Dowling College, Kramer Science Center, KSC 121
>        Idle Hour Blvd, Oakdale, NY, 11769
>
>                 +1-631-244-3035
>                 yaya at dowling.edu
> =====================================================
>
> On Fri, 13 Aug 2010, Kaercher, Joerg wrote:
>
>> Here is how I test get_detector_normal.  These tests are made from Python. 
>> First, I read hewlon_01_0001.cbf and print the detector normal:
>> 
>> [-0.0, 0.0, 0.99999999999999989]
>> 
>> Then I edit the CBF and change the _diffrn_scan_axis.angle_start for PITCH 
>> from 0 to 5.  Now I read in the modified CBF and print the detector normal 
>> again:
>> 
>> [-0.0, 0.0, 0.99999999999999989]
>> 
>> Although the detector has been rotated 5 degrees about the Y axis, the 
>> normal still points along Z.
>> 
>> Regards,
>> Joerg
>>