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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: ScalarFunctionMeshCharacteristic.hpp,v 1.3 2006/10/28 12:26:54 delpinux Exp $
#ifndef SCALAR_FUNCTION_MESH_CHARACTERISTIC_HPP
#define SCALAR_FUNCTION_MESH_CHARACTERISTIC_HPP
#include <ScalarFunctionBase.hpp>
#include <ReferenceCounting.hpp>
class Mesh;
/**
* @file ScalarFunctionMeshCharacteristic.hpp
* @author Stephane Del Pino
* @date Thu Jul 20 01:56:49 2006
*
* @brief characteristic function of a mesh
*
*/
class ScalarFunctionMeshCharacteristic
: public ScalarFunctionBase
{
private:
//! The Mesh on which lives the function.
ConstReferenceCounting<Mesh> __mesh;
/**
* Writes the function on a stream
*
* @param os output stream
*
* @return os
*/
std::ostream& __put(std::ostream& os) const
{
os << "one({mesh})";
return os;
}
public:
/**
* checks if some point is inside the mesh
*
* @param X evaluation point
*
* @return 1 if the point is inside the mesh, 0 else
*/
real_t operator()(const TinyVector<3>& V) const;
/**
* Checks if the function can be simplified
*
* @return false
*/
bool canBeSimplified() const
{
return false;
}
/**
* Constructor
*
* @param mesh given mesh
*/
ScalarFunctionMeshCharacteristic(ConstReferenceCounting<Mesh> mesh);
/**
* Copy constructor
*
* @param f original function
*/
ScalarFunctionMeshCharacteristic(const ScalarFunctionMeshCharacteristic& f);
/**
* Destructor
*
*/
~ScalarFunctionMeshCharacteristic();
};
#endif // SCALAR_FUNCTION_MESH_CHARACTERISTIC_HPP
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