/usr/include/casacore/scimath/Functionals/DiracDParam.h is in casacore-dev 2.2.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | //# DiracDParam.h: A one dimensional Dirac delta function
//# Copyright (C) 2002,2005
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef SCIMATH_DIRACDPARAM_H
#define SCIMATH_DIRACDPARAM_H
//# Includes
#include <casacore/casa/aips.h>
#include <casacore/scimath/Functionals/Function.h>
#include <casacore/casa/BasicSL/String.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
//# Forward declarations
// <summary> A one dimensional Dirac delta function
// </summary>
// <use visibility=local>
// <reviewed reviewer="" date="" tests="tFunctionHolder"
// demos="">
// </reviewed>
// <prerequisite>
// <li> <linkto class="FunctionParam">FunctionParam</linkto> class
// <li> <linkto class="Function">Function</linkto> class
// </prerequisite>
// <etymology>
// A 1-dimensional Dirac delta.
// </etymology>
// <synopsis>
// A <src>DiracD</src> is described by a height and a center
// The value is:
// <srcblock>
// height (|x-center| == 0.0)
// 0 (|x-center| != 0.0)
// </srcblock>
// The parameters are enumerated by HEIGHT, CENTER. They have
// default values of (1, 0).
// </synopsis>
//
// <example>
// <srcblock>
// DiracDFunction<Double> sf(5.0, 25.0);
// sf(25); // = 5.0
// </srcblock>
// </example>
// <templating arg=T>
// <li> T should have standard numerical operators
// </templating>
// <thrown>
// <li> AipsError if incorrect parameter number specified.
// </thrown>
template<class T> class DiracDParam : public Function<T>
{
public:
//# Enumerations
// Parameter numbers
enum { HEIGHT=0, CENTER};
//# Constructors
// Constructs the DiracD, Defaults:
// height=1, center=0.
// <note role=warning> Could not use default arguments
// that worked both with gcc and IRIX </note>
// <group>
DiracDParam();
explicit DiracDParam(const T &height);
DiracDParam(const T &height, const T ¢er);
// </group>
// Copy constructor (deep copy)
// <group>
DiracDParam(const DiracDParam<T> &other);
template <class W>
DiracDParam(const DiracDParam<W> &other) :
Function<T>(other) {}
// </group>
// Copy assignment (deep copy)
DiracDParam<T> &operator=(const DiracDParam<T> &other);
// Destructor
virtual ~DiracDParam();
//# Operators
virtual uInt ndim() const { return 1; }
//# Member functions
// Give name of function
virtual const String &name() const { static String x("diracdelta");
return x; }
//# Make members of parent classes known.
protected:
using Function<T>::param_p;
public:
using Function<T>::nparameters;
};
} //# NAMESPACE CASACORE - END
#ifndef CASACORE_NO_AUTO_TEMPLATES
#include <casacore/scimath/Functionals/DiracDParam.tcc>
#endif //# CASACORE_NO_AUTO_TEMPLATES
#endif
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