[cctbxbb] Introducing arbitrary translations in symmetry operations

Emre S. Tasci emre.tasci at ehu.es
Wed Jun 1 01:22:54 PDT 2011

Dear All,

We are trying to identify affine normalizers' space group from the 
additional operators, but having difficulties in introducing the 
arbitrary translations.

As an example, suppose that our "base" space group is 25, and the 
additional operators are:

which, combined, defines P1 mmm

But we couldn't find a way to introduce "x,y,z+t" while we are 
"expand_smx"ing the space group with these operators.

Any ideas how to do this?

With my thanks in advance,

Emre S. Tasci - http://www.emresururi.com
Fisica de la Materia Condensada
Facultad de Ciencia y Tecnologia
Universidad del Pais Vasco
Apartado 644
48080 Bilbao / Spain

More information about the cctbxbb mailing list