/usr/include/trilinos/mrtr_function.H is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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#@HEADER
# ************************************************************************
#
# Moertel FE Package
# Copyright (2006) Sandia Corporation
#
# Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
# license for use of this work by or on behalf of the U.S. Government.
#
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
# Questions? Contact Michael Gee (mwgee@sandia.gov)
#
# ************************************************************************
#@HEADER
*/
/* ******************************************************************** */
/* See the file COPYRIGHT for a complete copyright notice, contact */
/* person and disclaimer. */
/* ******************************************************************** */
/*!
* \file mrtr_function.H
*
* \class MOERTEL::Function
*
* \brief A virtual class to form a shape function of some type
*
* \date Last update do Doxygen: 20-March-06
*
*/
#ifndef MOERTEL_FUNCTION_H
#define MOERTEL_FUNCTION_H
#include <ctime>
#include <iostream>
using namespace std;
/*!
\brief MOERTEL: namespace of the Moertel package
The Moertel package depends on \ref Epetra, \ref EpetraExt, \ref Teuchos,
\ref Amesos, \ref ML and \ref AztecOO:<br>
Use at least the following lines in the configure of Trilinos:<br>
\code
--enable-moertel
--enable-epetra
--enable-epetraext
--enable-teuchos
--enable-ml
--enable-aztecoo --enable-aztecoo-teuchos
--enable-amesos
\endcode
*/
namespace MOERTEL
{
class Segment;
/*!
\class Function
\brief <b> A virtual class to form a shape function of some type </b>
\author Glen Hansen (Glen.Hansen@inl.gov)
*/
class Function
{
public:
/*!
\brief Type of function
\param func_none : default value
\param func_Constant1D : Constant function on a 1D Segment
\param func_Linear1D : Linear function on a 1D Segment
\param func_DualLinear1D : Dual linear function on a 1D Segment
\param func_LinearTri : Linear function on a 3-noded triangle
\param func_DualLinearTri : Dual linear function on a 3-noded triangle
\param func_ConstantTri : Constant function on a 3-noded triangle
*/
enum FunctionType
{
func_none,
func_Constant1D,
func_Linear1D,
func_DualLinear1D,
func_LinearTri,
func_DualLinearTri,
func_ConstantTri,
func_BiLinearQuad,
func_DualBiLinearQuad
};
// @{ \name Constructors and destructors
/*!
\brief Constructor
Constructs an instance of this base class.<br>
\param outlevel : Level of output information written to stdout ( 0 - 10 )
\param type : Function type
*/
Function(int outlevel,MOERTEL::Function::FunctionType type) :
type_(type),
outputlevel_(outlevel)
{};
/*!
\brief Copy-Constructor
Makes a deep copy<br>
\param old : Instance to be copied
*/
Function(const MOERTEL::Function& old) :
type_(old.type_),
outputlevel_(old.outputlevel_)
{}
/*!
\brief Destructor
*/
virtual ~Function() {}
/*!
\brief Clone method
The derived class implementing this virtual method is supposed to make a
deep copy of itself and return a pointer to the copy.
*/
virtual MOERTEL::Function* Clone() const = 0;
//@}
// @{ \name Public members
/*!
\brief Return the level of output written to stdout ( 0 - 10 )
*/
int OutLevel() { return outputlevel_; }
/*!
\brief Return the function type
*/
MOERTEL::Function::FunctionType Type() const { return type_;}
/*!
\brief Evaluate the function and derivatives at a given local coordinate
\param xi (in) : Local coordinate where to evaluate the function
\param val (out) : Function values at xi
\param valdim (in) : Dimension of val
\param deriv (out) : Derivative of functions at xi
*/
virtual bool EvaluateFunction(const MOERTEL::Segment& seg, const double* xi,
double* val, const int valdim,double* deriv) = 0;
//@}
protected:
MOERTEL::Function::FunctionType type_;
int outputlevel_;
// Note that this base class does not hold any data.
// If Your derived class needs to hold data, make sure it's carefully
// taken care of in the copy-ctor!
};
} // namespace MOERTEL
#endif // MOERTEL_FUNCTION_H
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