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// This file is part of ff3d - http://www.freefem.org/ff3d
// Copyright (C) 2001, 2002, 2003 Stphane Del Pino
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// $Id: ScalarFunctionComposed.hpp,v 1.3 2006/10/28 12:26:54 delpinux Exp $
#ifndef SCALAR_FUNCTION_COMPOSED_HPP
#define SCALAR_FUNCTION_COMPOSED_HPP
#include <ScalarFunctionBase.hpp>
#include <ReferenceCounting.hpp>
/**
* @file ScalarFunctionComposed.hpp
* @author Stephane Del Pino
* @date Thu Jul 20 00:49:09 2006
*
* @brief composed function @f$ f(g_x,g_y,g_z) @f$
*
*/
class ScalarFunctionComposed
: public ScalarFunctionBase
{
private:
/**
* Writes the function to a stream
*
* @param os output stream
*
* @return os
*/
std::ostream& __put(std::ostream& os) const
{
os << *__function << '('
<< *__functionX << ','
<< *__functionY << ','
<< *__functionZ << ')';
return os;
}
ConstReferenceCounting<ScalarFunctionBase>
__function; /**< @f$ f @f$ */
ConstReferenceCounting<ScalarFunctionBase>
__functionX; /**< @f$ g_x @f$ */
ConstReferenceCounting<ScalarFunctionBase>
__functionY; /**< @f$ g_y @f$ */
ConstReferenceCounting<ScalarFunctionBase>
__functionZ; /**< @f$ g_z @f$ */
public:
/**
* Evaluates the composed function at point @f$ X @f$
*
* @param X @f$ X @f$
*
* @return @f$ f(g_x(X),g_y(X),g_z(X)) @f$
*/
real_t operator()(const TinyVector<3,real_t>& X) const;
/**
* Checks if the function can be simplified
*
* @return false
*/
bool canBeSimplified() const
{
return false;
}
/**
* Constructor
*
* @param function @f$ f @f$
* @param functionX @f$ g_x @f$
* @param functionY @f$ g_y @g$
* @param functionZ @f$ g_z @g$
*/
ScalarFunctionComposed(ConstReferenceCounting<ScalarFunctionBase> function,
ConstReferenceCounting<ScalarFunctionBase> functionX,
ConstReferenceCounting<ScalarFunctionBase> functionY,
ConstReferenceCounting<ScalarFunctionBase> functionZ);
/**
* Copy-constructor
*
* @param f given composed function
*/
ScalarFunctionComposed(const ScalarFunctionComposed& f);
/**
* Destructor
*
*/
~ScalarFunctionComposed();
};
#endif // SCALAR_FUNCTION_COMPOSED_HPP
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