52 lines
1.8 KiB
OpenEdge ABL
52 lines
1.8 KiB
OpenEdge ABL
\subsection{User Scans}
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When operating with polarisation equipment a lot of things must be done
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at each scan point: count, switch sloppy flippers, drive magnetic
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fields, count again etc. In order to do that and other special things user
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configurable scans have been introduced. For such scans a configurable
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script procedure is called at each scan point with the current
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scan point number as an argument. This script then has to perform
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the necessary counting operations, store the data collected, print
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status information and update the internal scan data structures with
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the collected data so that data may be plotted or analyzed in SICS.
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In the following section the internal scan object is referenced as xxxscan.
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The script can contain the following commands:
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\begin{itemize}
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\item Normal SICS commands for driving magnets, counting, retrieving
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data etc.
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\item {\bf xxxscan line bla bla } appends everything after line to
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the data file.
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\item {\bf xxxscan store 1 2 3 4} stores the numbers after store in the
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count data structure of the scan module.
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\item clientput allows to write information to the controlling terminal.
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\end{itemize}
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In order to do all this some configurable scan functions have to be
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overloaded. This is implemented in userscan.c. In terms of a public
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interface only one function is defined:
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@d usinter @{
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void ConfigureUserScan(pScanData self);
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@}
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which simply sets the necessary function pointers in pScanData.
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@o userscan.h @{
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/*------------------------------------------------------------------------
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User configurable scans. At each scan point a scripted procedure is
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called.
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More info: userscan.tex
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copyright: see copyright.h
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Mark Koennecke, June 2001
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-------------------------------------------------------------------------*/
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#ifndef USERSCAN
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#define USERSCAN
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@<usinter@>
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#endif
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@}
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