- Rearranged directory structure for forking out ANSTO

- Refactored site specific stuff into a site module
- PSI specific stuff is now in the PSI directory.
- The old version has been tagged with pre-ansto

faverage.w

@@ -0,0 +1,50 @@
+\subsection{The FOCUS Averager}
+This is a special object for the instrument FOCUS and its Status display
+client. In the FOCUS status display the averaged data from a number of
+detectors is displayed. Thus there is already a reduced form of data. The
+actual raw data would be 150*1024*4 bytes of data and possibly more. Rather
+then transporting all this data to the status display client at regular
+intervalls it was choosen to implement this averaging process at the server
+and only send the reduced form to the status display client. Which is two
+arrays of floating point data 1024 items long. This little object implements this
+averager. 
+
+As all SICS objects this object has a little data structure:
+\begin{verbatim}
+  typedef struct __FocusAverager {
+                                  pObjectDescriptor pDes;
+                                  pHistMem          pHist;
+                                 } FocusAverager;
+\end{verbatim}  
+
+The two fields are the standard object descriptor and a pointer to the
+histogram memory object holding the data. 
+
+The interface is minimal: it consists just of the factory function for
+installing this object into SICS and the actual function doing the
+averaging in the interpreter.
+
+@d faint @{
+    int MakeFA(SConnection *pCon, SicsInterp *pSics, void *pData,
+               int argc, char *argv[]);
+
+    int FocusAverageDo(SConnection *pCon, SicsInterp *pSics, void *pData,
+               int argc, char *argv[]);
+
+@} 
+
+@o faverage.h @{
+/*-----------------------------------------------------------------------
+                F o c u s A v e r a g e
+
+  An averager for FOCUS data.  See faverage.tex for more details.
+
+  Mark Koennecke, October 1998
+
+--------------------------------------------------------------------------*/
+#ifndef FOCUSAVERAGE
+#define FOCUSAVERAGE
+@<faint@>
+#endif
+@}
+