- Fixed a few problems with hklscan

- Added transfer of zipped data to conman.c, histogram memory software
  in order to support the TRICS status display.
- Upgraded TRICS data file writing.
- First installment of triple axis spectrometer support: initialization of
  data structures and an implementation of the MAD dr(ive) command.

scan.w

@@ -61,6 +61,7 @@ steps in scan processing which is already partly implemented.
                              SConnection       *pCon;
                              char              pRecover[1024];
                              char              pHeaderFile[1024];
+                             int               (*PrepareScan)(pScanData self);
                              int               (*WriteHeader)(pScanData self);
                              int               (*WriteScanPoints)
                                                       (pScanData self, 
@@ -128,6 +129,9 @@ line is permitted.
  finding data.
 \item[pCon] The connection object to use for error reporting during scan
 execution. 
+\item[PrepareScan] checks limits of scan variables and memorizes
+important scan information.  Sometimes this is not wanted, that is why
+it is parametrized here.
 \item[WriteHeader] is a pointer to a function which writes the header part
 of the scan file. Replace this function if another data format is needed.
 \item[WriteScanPoints] is a pointer to a function which will be called after 
@@ -204,7 +208,12 @@ functions:
     /*
        resets the configurable scan functions to their default values.
     */
-
+    int NonCheckPrepare(pScanData self);
+    /*
+      a function for the PrepareScan field in the scan data structure
+      which does not check the boundaries of the scan as the default
+      PrepareScan does.
+    */
 /*------------------------ Interpreter Interface --------------------------*/
     int ScanFactory(SConnection *pCon, SicsInterp *pSics, void *pData,
                     int argc, char *argv[]);
@@ -254,6 +263,12 @@ summed counts and the variance. See the section on integrate for more
 details.
 \item[ResetScanFunctions] reinstalls the default functions for scan
 processing into the ScanData structure.
+\item[NonCheckPrepare] Before a scan is started, various data
+structures in the scan object are initialized. Thereby the scan
+boundaries are checked against the motor limits. For some scans this
+is not feasible. This version omits this check and must be entered as
+the PrepareScan function field in the scan data structure by code
+using the scan module. 
 \item[SimScan] creates a simulated gaussian peak with the given
 parameters. Used for debugging several things. 
 \item[ScanFactory] is the SICS interpreter object creation function