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Register.h
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1 //# Register.h: Register Measure UDFs
2 //# Copyright (C) 2011
3 //# Associated Universities, Inc. Washington DC, USA.
4 //#
5 //# This library is free software; you can redistribute it and/or modify it
6 //# under the terms of the GNU Library General Public License as published by
7 //# the Free Software Foundation; either version 2 of the License, or (at your
8 //# option) any later version.
9 //#
10 //# This library is distributed in the hope that it will be useful, but WITHOUT
11 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
13 //# License for more details.
14 //#
15 //# You should have received a copy of the GNU Library General Public License
16 //# along with this library; if not, write to the Free Software Foundation,
17 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
18 //#
19 //# Correspondence concerning AIPS++ should be addressed as follows:
20 //# Internet email: aips2-request@nrao.edu.
21 //# Postal address: AIPS++ Project Office
22 //# National Radio Astronomy Observatory
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25 //#
26 //# $Id$
27 
28 #ifndef MEAS_REGISTER_H
29 #define MEAS_REGISTER_H
30 
31 #include <casacore/casa/aips.h>
33 #include <ostream>
34 
35 // <group name=MeasUDF>
36 // This function registers the TaQL user defined functions handling
37 // Measure conversions.
38 // It is called when the dynamic library casa_meas.so/dylib is loaded.
39 
40 extern "C" {
41  void register_meas();
42 }
43 
44 // </group>
45 
46 
47 namespace casacore {
48  // <synopsis>
49  // General meas function to show the available functions.
50  // </synopsis>
51  class HelpMeasUDF: public UDFBase
52  {
53  public:
54  // Function to create an object.
55  static UDFBase* makeHELP (const String&);
56 
57  // Setup the object.
58  virtual void setup (const Table&, const TaQLStyle&);
59 
60  // Get the value.
61  virtual String getString (const TableExprId& id);
62 
63  // Show the possible functions.
64  static void showFuncsPosition (std::ostream&, Bool showTypes);
65  static void showFuncsEpoch (std::ostream&, Bool showTypes);
66  static void showFuncsDirection (std::ostream&, Bool showTypes);
67  static void showFuncsEarthMagnetic (std::ostream&, Bool showTypes);
68  static void showFuncsFrequency (std::ostream&, Bool showTypes);
69  static void showFuncsDoppler (std::ostream&, Bool showTypes);
70  static void showFuncsRadialVelocity (std::ostream&, Bool showTypes);
71  };
72 }
73 
74 #endif
Main interface class to a read/write table.
Definition: Table.h:153
void register_meas()
This function registers the TaQL user defined functions handling Measure conversions.
Abstract base class for a user-defined TaQL function.
Definition: UDFBase.h:236
virtual String getString(const TableExprId &id)
Get the value.
static void showFuncsPosition(std::ostream &, Bool showTypes)
Show the possible functions.
static void showFuncsDirection(std::ostream &, Bool showTypes)
Class with static members defining the TaQL style.
Definition: TaQLStyle.h:64
static void showFuncsDoppler(std::ostream &, Bool showTypes)
bool Bool
Define the standard types used by Casacore.
Definition: aipstype.h:42
virtual void setup(const Table &, const TaQLStyle &)
Setup the object.
static void showFuncsEarthMagnetic(std::ostream &, Bool showTypes)
static void showFuncsRadialVelocity(std::ostream &, Bool showTypes)
The identification of a TaQL selection subject.
Definition: TableExprId.h:97
static UDFBase * makeHELP(const String &)
Function to create an object.
static void showFuncsFrequency(std::ostream &, Bool showTypes)
String: the storage and methods of handling collections of characters.
Definition: String.h:223
static void showFuncsEpoch(std::ostream &, Bool showTypes)
#define casacore
&lt;X11/Intrinsic.h&gt; #defines true, false, casacore::Bool, and String.
Definition: X11Intrinsic.h:42