FEApp_AbstractElement.hpp

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// $Id: FEApp_AbstractElement.hpp,v 1.2 2008/08/01 22:57:12 etphipp Exp $ 
// $Source: /space/CVS/Trilinos/packages/sacado/example/FEApp/FEApp_AbstractElement.hpp,v $ 
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// ***********************************************************************
// 
//                           Sacado Package
//                 Copyright (2006) Sandia Corporation
// 
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
// 
// 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
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// This library is distributed in the hope that it will be useful, but
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
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// You should have received a copy of the GNU Lesser General Public
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#ifndef FEAPP_ABSTRACTELEMENT_HPP
#define FEAPP_ABSTRACTELEMENT_HPP

#include <vector>

#include "FEApp_AbstractFunction.hpp"

namespace FEApp {

  class AbstractElement {
  public:
  
    AbstractElement() {};

    virtual ~AbstractElement() {};

    virtual unsigned int numNodes() const = 0;

    virtual void createNodes(double x_left, double x_right,
           unsigned int first_node_gid) = 0;

    virtual unsigned int nodeGID(unsigned int i) const = 0;
  
    virtual void 
    evaluateShapes(const std::vector<double>& xi,
       std::vector< std::vector<double> >& phi) const = 0;

    virtual void
    evaluateShapeDerivs(const std::vector<double>& xi,
      std::vector< std::vector<double> >& dphidxi) const = 0;

    virtual void 
    evaluateJacobian(const std::vector<double>& xi,
         std::vector<double>& jac) const = 0;

  private:

    AbstractElement(const AbstractElement&);
    
    AbstractElement& operator=(const AbstractElement&);

  };

}

#endif // FEAPP_ABSTRACTELEMENT_HPP

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