TGo4FitModelPolynom.h

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// $Id$
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------
 
#ifndef TGO4FITMODELPOLYNOM_H
#define TGO4FITMODELPOLYNOM_H
 
#include "TGo4FitModel.h"
 
class TArrayD;

class TGo4FitModelPolynom : public TGo4FitModel {
   public:

      TGo4FitModelPolynom();

      TGo4FitModelPolynom(const char *iName, Double_t iOrderX = 0.);

      TGo4FitModelPolynom(const char *iName, Double_t iOrderX, Double_t iOrderY);

      TGo4FitModelPolynom(const char *iName, Double_t iOrderX, Double_t iOrderY, Double_t iOrderZ);

      TGo4FitModelPolynom(const char *iName, const TArrayD& iPolynomOrders);

      virtual ~TGo4FitModelPolynom();

      Double_t GetPolynomOrder(Int_t naxis);

      Int_t GetMaxNumAxis();

      Bool_t SetMaxNumAxis(Int_t numaxis);

      void Print(Option_t *option = "") const override;
 
      Bool_t BeforeEval(Int_t NDimension) override;
      Double_t EvalN(const Double_t *v) override;
      void AfterEval() override;
 
   protected:
      TString GetOrderParName(Int_t naxis) const;
 
   private:
      void CreateOrdersPars(const Double_t *orders, Int_t startaxis, Int_t maxaxis, Int_t AtIndx = -1);

      Int_t Par_ndim{0};                       

      TArrayD *fxAllOrders{nullptr};             

      Double_t *Par_orders{nullptr};              
 
   ClassDefOverride(TGo4FitModelPolynom,1)
};
 
#endif // TGO4FITMODELPOLYNOM_H