4.8. - Four-Circle Files
Most questions regarding the behavior of spec when used with a
four-circle
diffractometer can ultimately be resolved by consulting the
appropriate source code.
The file
geo_fourc.c
in the standard distribution of spec contains the code for all the
four-circle calculations.
The file
u_hook.c
contains a few lines of code that connect the code in
geo_fourc.c
with the rest of the program.
Finally, the files
macros/fourc.src
and
macros/ub.mac
in the standard distribution contains the
definitions for all the four-circle and orientation matrix macros.
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