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UnknownFunction.h

Go to the documentation of this file.

#ifndef UNKNOWNFEFUNC_H
#define UNKNOWNFEFUNC_H

#include "SundanceDefs.h"

#include "SymbolicFunction.h"


namespace Sundance
{

  using namespace TSF;
  using std::string;

  using std::ostream;

  /**
   * \ingroup UserLevelSymbolics
   * Expression subtype that can represent an unknown function in a
   * finite-element problem
   */

  class UnknownFunction : public SymbolicFunction
    {
    public:
      /** \name User-level methods */
      //@{
      /** Construct with a basis */
      UnknownFunction(const BasisFamily& basis);
      /** Construct with a basis and a name */
      UnknownFunction(const BasisFamily& basis, const string& name);
      //@}
      virtual ~UnknownFunction(){;}

      /** \name Developer-only methods */
      //@{
      /** identify self as an unknown */
      virtual bool isUnknown() const {return true;}

      /** */
      virtual void evaluate(const WorkSet& workSet,
                            const QuadratureFamily& quadFamily,
                            DenseSerialVector& result) const ;

      /** */
      virtual int sortPriority() const {return UNKNOWNFUNCTION;}

      /** */
      virtual ExprBase* clone() const ;

      /** */
      virtual void getVariation(Expr& result) const ;

      /** */
      virtual void getDifferential(Expr& result) const ;

      /** */
      virtual void setVariation(const Expr& v) ;

      /** */
      virtual void setDifferential(const Expr& du) ;

      /** */
      virtual void setFunctionValue(const Expr& u0) ;
      //@}

    protected:
      mutable Expr value_;
      mutable Expr differential_;
      mutable Expr variation_;
      mutable bool hasDifferential_;
      mutable bool hasVariation_;
      //      mutable ExprHashtable sensitivity_;
    };


}
#endif

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Contact:

Kevin Long (krlong@ca.sandia.gov)


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