Register.h

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00001 //# Register.h: Register virtual column engine to return derived MS values
00002 //# Copyright (C) 2010
00003 //# Associated Universities, Inc. Washington DC, USA.
00004 //#
00005 //# This library is free software; you can redistribute it and/or modify it
00006 //# under the terms of the GNU Library General Public License as published by
00007 //# the Free Software Foundation; either version 2 of the License, or (at your
00008 //# option) any later version.
00009 //#
00010 //# This library is distributed in the hope that it will be useful, but WITHOUT
00011 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00013 //# License for more details.
00014 //#
00015 //# You should have received a copy of the GNU Library General Public License
00016 //# along with this library; if not, write to the Free Software Foundation,
00017 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
00018 //#
00019 //# Correspondence concerning AIPS++ should be addressed as follows:
00020 //#        Internet email: aips2-request@nrao.edu.
00021 //#        Postal address: AIPS++ Project Office
00022 //#                        National Radio Astronomy Observatory
00023 //#                        520 Edgemont Road
00024 //#                        Charlottesville, VA 22903-2475 USA
00025 //#
00026 //# $Id$
00027 
00028 #ifndef DERIVEDMSCAL_REGISTER_H
00029 #define DERIVEDMSCAL_REGISTER_H
00030 
00031 #include <casacore/casa/aips.h>
00032 #include <casacore/tables/TaQL/UDFBase.h>
00033 #include <ostream>
00034 
00035 // <group name=DerivedMSCal>
00036 // This function registers the DerivedMSCal virtual column engine and
00037 // the UDFMSCal UDFs.
00038 // It is called when the dynamic library derivedmscal.so/dylib is loaded.
00039 
00040 extern "C" {
00041   void register_derivedmscal();
00042 }
00043 
00044 // </group>
00045 
00046 
00047 
00048 namespace casacore {
00049   // <synopsis>
00050   // General meas function to show the available functions.
00051   // </synopsis>
00052   class HelpMsCalUDF: public UDFBase
00053   {
00054   public:
00055     // Function to create an object.
00056     static UDFBase* makeHELP (const String&);
00057 
00058     // Setup the object.
00059     virtual void setup (const Table&, const TaQLStyle&);
00060 
00061     // Get the value.
00062     virtual String getString (const TableExprId& id);
00063 
00064     // Show the possible functions.
00065     static void showFuncsDerived   (std::ostream&);
00066     static void showFuncsStokes    (std::ostream&, Bool showStokes);
00067     static void showFuncsSelection (std::ostream&);
00068     static void showFuncsSubtable  (std::ostream&);
00069   };
00070 }
00071 
00072 #endif
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