SundanceGaussianQuadrature.hpp

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//                              Sundance
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#ifndef SUNDANCE_GAUSSIANQUADRATURE_H
#define SUNDANCE_GAUSSIANQUADRATURE_H

#include "SundanceDefs.hpp"
#include "Teuchos_RefCountPtr.hpp"
#include "SundanceQuadratureFamilyBase.hpp"

namespace Sundance
{
using namespace Teuchos;


/** 
 * Family of optimal Gaussian integration rules, e.g., Gauss-Legendre on 
 * lines, Dunavant on triangles. 
 */
class GaussianQuadrature : public QuadratureFamilyBase
{
public:
  /** */
  GaussianQuadrature(int order);

  /** */
  virtual ~GaussianQuadrature(){;}


  /** */
  virtual XMLObject toXML() const ;

  /** Describable interface */
  virtual std::string description() const 
    {return "GaussianQuadrature[order=" + Teuchos::toString(order()) 
        +  "]";}

  /* handleable boilerplate */
  GET_RCP(QuadratureFamilyStub);

  /** This methos is for the ACI integration */
  virtual void getAdaptedWeights(const CellType& cellType ,
                     int cellDim,
                                     int celLID ,
                                   int facetIndex ,
                                     const Mesh& mesh ,
                                     const ParametrizedCurve& globalCurve ,
                                     Array<Point>& quadPoints ,
                                     Array<double>& quadWeights ,
                                     bool &isCut) const ;

protected:
  /** compute a rule for the reference line cell */
  virtual void getLineRule(Array<Point>& quadPoints,
    Array<double>& quadWeights) const ;

  /** compute a rule for the reference triangle cell */
  virtual void getTriangleRule(Array<Point>& quadPoints,
    Array<double>& quadWeights) const ;

  /** compute a rule for the reference quad cell */
  virtual void getQuadRule(Array<Point>& quadPoints,
    Array<double>& quadWeights) const ;

  /** compute a rule for the reference tet cell */
  virtual void getTetRule(Array<Point>& quadPoints,
    Array<double>& quadWeights) const ;

  /** compute a rule for the reference brick cell */
  virtual void getBrickRule(Array<Point>& quadPoints,
    Array<double>& quadWeights) const ;

};
}


#endif