SundanceL2Projector.hpp

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// 
//                              Sundance
//                 Copyright (2005) Sandia Corporation
// 
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// retains certain rights in this software.
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#ifndef SUNDANCE_L2PROJECTOR_H
#define SUNDANCE_L2PROJECTOR_H

#include "SundanceDefs.hpp"
#include "SundanceMesh.hpp"
#include "SundanceExpr.hpp"
#include "SundanceDiscreteFunction.hpp"
#include "SundanceDiscreteSpace.hpp"
#include "SundanceLinearProblem.hpp"
#include "SundanceCoordinateSystem.hpp"
#include "TSFLinearOperatorDecl.hpp"
#include "TSFLinearSolverDecl.hpp"
#include "TSFVectorDecl.hpp"
#include "TSFVectorType.hpp"

namespace Sundance
{
  using namespace Sundance;
  using namespace Sundance;
  using namespace Sundance;
  using namespace Sundance;
  using namespace Sundance;
  using namespace Teuchos;
  using namespace Thyra;

  /**
   * L2Projector projects an expression onto a DiscreteSpace. 
   */
  class L2Projector
  {
  public:
    /** */
    L2Projector(){;}
    /** */
    L2Projector(const DiscreteSpace& space, 
                const Expr& expr);
    /** */
    L2Projector(const DiscreteSpace& space, 
                const Expr& expr,
                const LinearSolver<double>& solver);
    /** */
    L2Projector(const DiscreteSpace& space, 
      const CoordinateSystem& coordSys,
      const Expr& expr);
    /** */
    L2Projector(const DiscreteSpace& space, 
      const CoordinateSystem& coordSys,
      const Expr& expr,
      const LinearSolver<double>& solver);

    /** */
    Expr project() const {return prob_.solve(solver_);}

    /** */
    const LinearProblem& prob() const {return prob_;}

  private:

    void init(const DiscreteSpace& space,       
      const CoordinateSystem& coordSys,
      const Expr& expr,
      const LinearSolver<double>& solver);
    
    LinearProblem prob_;

    LinearSolver<double> solver_;
    
  };
}


#endif