65 lines
2.7 KiB
C++
65 lines
2.7 KiB
C++
/***************************************************************************
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TSkewedGss.h
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Author: Bastian M. Wojek
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e-mail: bastian.wojek@psi.ch
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2009/01/24
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***************************************************************************/
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/***************************************************************************
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* Copyright (C) 2009 by Bastian M. Wojek *
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* *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef _TSkewedGss_H_
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#define _TSkewedGss_H_
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#include "PUserFcnBase.h"
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#include "TPofTCalc.h"
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/**
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* <p>Class implementing the musrfit user function interface for calculating muon spin depolarization functions
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* from a skewed Gaussian static field distribution
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*/
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class TSkewedGss : public PUserFcnBase {
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public:
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// default constructor
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TSkewedGss();
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~TSkewedGss();
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double operator()(double, const vector<double>&) const;
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private:
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mutable vector<double> fPar; ///< parameters of the model
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TPofBCalc *fPofB; ///< static field distribution P(B)
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TPofTCalc *fPofT; ///< muon spin polarization p(t)
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mutable bool fCalcNeeded; ///< tag needed to avoid unnecessary calculations if the core parameters were unchanged
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mutable bool fFirstCall; ///< tag for checking if the function operator is called the first time
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mutable vector<double> fParForPofT; ///< parameters for the calculation of p(t)
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mutable vector<double> fParForPofB; ///< parameters for the calculation of P(B)
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string fWisdom; ///< file name of the FFTW wisdom file
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ClassDef(TSkewedGss,1)
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};
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#endif //_TSkewedGss_H_
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