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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: ScalarFunctionObjectCharacteristic.hpp,v 1.4 2006/10/28 12:26:54 delpinux Exp $
#ifndef SCALAR_FUNCTION_OBJECT_CHARACTERISTIC_HPP
#define SCALAR_FUNCTION_OBJECT_CHARACTERISTIC_HPP
#include <ScalarFunctionBase.hpp>
#include <TinyVector.hpp>
#include <ReferenceCounting.hpp>
#include <list>
class Scene;
class Object;
/**
* @file ScalarFunctionObjectCharacteristic.hpp
* @author Stephane Del Pino
* @date Thu Jul 20 11:08:48 2006
*
* @brief Charateristic function of an object
*
*/
class ScalarFunctionObjectCharacteristic
: public ScalarFunctionBase
{
private:
const TinyVector<3,real_t>
__reference; /**< reference of the object */
std::list<ConstReferenceCounting<Object> >
__objects; /**< list of object of that reference */
/**
* Writes the function to a stream
*
* @param os output stream
*
* @return os
*/
std::ostream& __put(std::ostream& os) const
{
os << "(<" << __reference[0]
<< ',' << __reference[1]
<< ',' << __reference[2]
<< ">)";
return os;
}
public:
/**
* Evaluates the function at point @f$ X @f$
*
* @param X position
*
* @return 1 if @a X is inside one of the objects of the list, 0
* else
*/
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 scene the scene
* @param ref the reference of objects to select in the scene
*/
ScalarFunctionObjectCharacteristic(ConstReferenceCounting<Scene> scene,
const TinyVector<3, real_t>& ref);
/**
* Copy constructor
*
* @param f original function
*/
ScalarFunctionObjectCharacteristic(const ScalarFunctionObjectCharacteristic& f);
/**
* Destructor
*
*/
~ScalarFunctionObjectCharacteristic();
};
#endif // SCALAR_FUNCTION_OBJECT_CHARACTERISTIC_HPP
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