STRATEGY will reconstruct a crystal orientation matrix from the cell parameters and
the crystal orientation taken from the x-file. The actual crystal orientation matrix
is a product of four rotation matrices (three around the laboratory
axes:
,
and
, and one
around the spindle axis:
) and the standard orientation matrix
. The standard orientation is influenced by the two DENZO
commands spindle axis and vertical axis. Only six different combinations of
different spindle axis and vertical axis are supported (see also
section limitations);
these are given below.
Table: Allowed combinations of spindle axis and vertical axis used for the
calculation of the standard orientation matrix.
The crystal orientation matrices ,
and
and the spindle matrix
are functions of the DENZO parameters
crystal rotx roty rotz
and
oscillation start
. They are expressed in the
STRATEGY laboratory axes: