[Nexus] Java code for UB matrix

[Dennis Mikkelson]

Hi Yang,
 
  The "Integrated Spectral Analysis Workbench" 
(http://www.pns.anl.gov/computing/isaw) is written in Java and has a 
number of classes that may be useful to you.  Specifically,

...gov/anl/ipns/MathTools/lattice_calc.java 
provides some generally useful calculations, such as factoring UB, 
getting lattice parameters, etc.


.../gov/anl/ipns/MathTools/LinearAlgebra.java
provides basic linear algebra routines, including finding a matrix that 
best maps a list of calculated peak positions to/from (h,k,l) values.


.../DataSetTools/instruments/SampleOrientation.java
represents goniometer angles Chi, Phi, Omega


.../DataSetTools/instruments/IPNS_SCD_SampleOrientation.java
represents using the sign conventions of the IPNS SCD.


These, and some related basic classes for vectors and matrices might be 
helpful.  If you have any questions regarding these classes in ISAW, 
please contact me.

Regards,
Dennis Mikkelson


FEI, Yang wrote:

> At the moment we are developing control program for TAS and Single 
> crystal machine.  This program is being developed in Java code, so I 
> just think if anyone has done the same job for the UB matrix 
> calculation in Java and can share the code with us that will be 
> greatly appreciated and save a lot of our time to recode the same 
> thing.  Thanks,
>
>  
>
> Yang
>
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