clarify log file

git-svn-id: http://svn.aei.mpg.de/numrel/AEIThorns/AEILocalInterp/trunk@46 0f49ee68-0e4f-0410-9b9c-b2c123ded7ef

1 files changed, 5 insertions, 0 deletions

diff --git a/doc/documentation.tex b/doc/documentation.tex
index 15b94e5..6a5c5d1 100644
--- a/doc/documentation.tex
+++ b/doc/documentation.tex
@@ -1407,6 +1407,11 @@ snprintf(buffer, length,
          CCTK_MyProc(NULL))
 \end{verbatim}
 
+Each file begins with a header comment describing the file format in
+detail.  After the header comment, there is one line in the file for
+each call on \verb|CCTK_InterpLocalUniform()| which is handled by this thorn
+(with \verb|log_interp_coords| set to \verb|true|).
+
 Note that these log files are typically quite large, and writing them         
 may significantly slow the simulation -- you should probably only use
 this option for debugging purposes.