G4INCL::InvFInterpolationTable Class Reference

Class for interpolating the inverse of a 1-dimensional function. More...

#include <G4INCLInvFInterpolationTable.hh>

Inheritance diagram for G4INCL::InvFInterpolationTable:

Collaboration diagram for G4INCL::InvFInterpolationTable:

Public Member Functions
	InvFInterpolationTable (IFunction1D const &f, const unsigned int nNodes=30)
virtual	~InvFInterpolationTable ()
Public Member Functions inherited from G4INCL::InterpolationTable
	InterpolationTable (std::vector< G4double > const &x, std::vector< G4double > const &y)
virtual	~InterpolationTable ()
unsigned int	getNumberOfNodes () const
std::vector< G4double >	getNodeAbscissae () const
std::vector< G4double >	getNodeValues () const
G4double	operator() (const G4double x) const
	Compute the value of the function. More...
std::string	print () const
Public Member Functions inherited from G4INCL::IFunction1D
	IFunction1D ()
	IFunction1D (const G4double x0, const G4double x1)
virtual	~IFunction1D ()
virtual G4double	getXMinimum () const
	Return the minimum allowed value of the independent variable. More...
virtual G4double	getXMaximum () const
	Return the maximum allowed value of the independent variable. More...
virtual G4double	integrate (const G4double x0, const G4double x1, const G4double step=-1.) const
	Integrate the function between two values. More...
IFunction1D *	primitive () const
	Return a pointer to the (numerical) primitive to this function. More...
InterpolationTable *	inverseCDFTable (ManipulatorFunc fWrap=0, const G4int nNodes=60) const
	Return a pointer to the inverse of the CDF of this function. More...

Additional Inherited Members
Public Types inherited from G4INCL::IFunction1D
typedef G4double(*const	ManipulatorFunc )(const G4double)
	Typedef to simplify the syntax of inverseCDFTable. More...
Protected Member Functions inherited from G4INCL::InterpolationTable
	InterpolationTable ()
void	initDerivatives ()
	Initialise the values of the node derivatives. More...
Protected Attributes inherited from G4INCL::InterpolationTable
std::vector< InterpolationNode >	nodes
	Interpolating nodes. More...
Protected Attributes inherited from G4INCL::IFunction1D
G4double	xMin
	Minimum value of the independent variable. More...
G4double	xMax
	Maximum value of the independent variable. More...

Detailed Description

Class for interpolating the inverse of a 1-dimensional function.

Definition at line 56 of file G4INCLInvFInterpolationTable.hh.

Constructor & Destructor Documentation

G4INCL::InvFInterpolationTable::InvFInterpolationTable	(	IFunction1D const &	f,
		const unsigned int	nNodes = 30
	)

Definition at line 52 of file G4INCLInvFInterpolationTable.cc.

                                                                                                {
// assert(nNodes>2);

    const G4double x0 = f.getXMinimum();
    const G4double x1 = f.getXMaximum();

    // Build the nodes
    G4double last = f(x0);
    InterpolationNode firstNode(last, x0, 0.);
    nodes.push_back(firstNode);
    G4int skippedNodes = 0;
    for(unsigned i = 1; i < nNodes; i++) {
      const G4double xi = x0 + i*(x1-x0)/((G4double)(nNodes-1));
      // Make sure that the x vector is sorted (corresponding to a monotonous
      // function)
      const G4double value = f(xi);
      if(value <= last) {
        ++skippedNodes;
        continue;
      }
      InterpolationNode node(value, xi, 0.);
      nodes.push_back(node);
      last = value;
    }

// assert(nNodes==nodes.size()+skippedNodes);

    // Initialise the "derivative" values
    initDerivatives();
  }

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virtual G4INCL::InvFInterpolationTable::~InvFInterpolationTable ( )

inlinevirtual

Definition at line 59 of file G4INCLInvFInterpolationTable.hh.

{}

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The documentation for this class was generated from the following files:

• geant4.10.03.p01/source/processes/hadronic/models/inclxx/utils/include/G4INCLInvFInterpolationTable.hh
• geant4.10.03.p01/source/processes/hadronic/models/inclxx/utils/src/G4INCLInvFInterpolationTable.cc