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shape_functions.hh
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/**
* @file shape_functions.hh
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @date Thu Feb 10 11:35:29 2011
*
* @brief shape function class
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __AKANTU_SHAPE_FUNCTIONS_HH__
#define __AKANTU_SHAPE_FUNCTIONS_HH__
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
class ShapeFunctions : public Memory {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
ShapeFunctions(Mesh & m,ShapeID myid="shape"){
mesh = &m;
id = myid;
};
virtual ~ShapeFunctions(){};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// pre compute all shapes on the element control points from natural coordinates
template <ElementType type>
void precomputeShapesOnControlPoints(const Real * natural_coords,
const UInt nb_points,
GhostType ghost_type);
/// pre compute all shapes on the element control points from natural coordinates
template <ElementType type>
void precomputeShapesDerivativesOnControlPoints(const Real * natural_coords,
const UInt nb_points,
const UInt dimension,
GhostType ghost_type);
/// interpolate nodal values on the control points
template <ElementType type>
void interpolateOnControlPoints(const Vector<Real> &u,
Vector<Real> &uq,
UInt nb_degre_of_freedom,
GhostType ghost_type = _not_ghost,
const Vector<UInt> * filter_elements = NULL) const;
/// multiply a field by shape functions
template <ElementType type>
void fieldTimesShapes(const Vector<Real> & field,
Vector<Real> & fieal_times_shapes);
// /// compute the gradient of u on the constrol points
// template <ElementType type>
// void gradientOnControlPoints(const Vector<Real> &u,
// Vector<Real> &nablauq,
// UInt nb_degre_of_freedom,
// GhostType ghost_type = _not_ghost,
// const Vector<UInt> * filter_elements = NULL) const;
/// function to print the contain of the class
virtual void printself(__attribute__ ((unused)) std::ostream & stream,
__attribute__ ((unused)) int indent = 0) const {};
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
protected:
Mesh * mesh;
ShapeID id;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
/// standard output stream operator
inline std::ostream & operator <<(std::ostream & stream, const ShapeFunctions & _this)
{
_this.printself(stream);
return stream;
}
__END_AKANTU__
#endif /* __AKANTU_SHAPE_FUNCTIONS_HH__ */

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