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QuadBasisSpecifier.h

Go to the documentation of this file.

#ifndef QUADBASISSPECIFIER_H
#define QUADBASISSPECIFIER_H

#include "SundanceDefs.h"

#include "QuadratureFamily.h"
#include "BasisFamily.h"

namespace Sundance
{

  using namespace TSF;
  using std::string;

  using std::ostream;

  class WorkSet;

  /** \ingroup LowLevelFE QuadBasisSpecifier specifies a combination
   * of {quadrature points, basis evaluator, and differentiation
   * order}. With such a combination, one can compute and cache a set
   * of basis function values (or derivative values) on quadrature
   * points. These function values will be stored in a hashtable keyed
   * by the QuadBasisSpecifier that created them.
   *
   * The basis values are stored in a DenseSerialVector indexed as follows:
   * values[differentiation direction][cell number][quad pt number]
   * [basis function number].
   **/

  class QuadBasisSpecifier
    {
    public:
      /** empty ctor for containers */
      QuadBasisSpecifier() : quad_(), basis_(), derivOrder_(0){}
      /** construct given a quad point set, a basis evaluator, and
       * the order of differentiation used when evaluating the basis */
      QuadBasisSpecifier(const QuadratureFamily& quad,
                         const BasisFamily& basis,
                         const CellTopologyCode& cellType,
                         int derivOrder);

      /** compute the basis function values at all quadrature points, and store
       * in a vector */
      TSFSmartPtr<DenseSerialVector> computeValues(const WorkSet& workSet) const ;
      /** compute the basis function values at all quadrature points, and store
       * in a vector */
      TSFSmartPtr<DenseSerialVector> computeEmbeddedValues(const WorkSet& workSet) const ;
      /** test equality with another specifier. Two objects are equal if
       * they refer to the same quad points, basis, and deriv order */
      bool operator==(const QuadBasisSpecifier& other) const ;

      /** hash code for hashtable lookup */
      int hashCode() const {return hashCode_;}

      /** write as a string */
      string toString() const ;
    protected:
      QuadratureFamily quad_;
      BasisFamily basis_;
      CellTopologyCode cellType_;
      int derivOrder_;
      int hashCode_;
    };

}

namespace TSF
{
  inline string toString(const Sundance::QuadBasisSpecifier& qbs)
    {
      return qbs.toString();
    }

  inline int hashCode(const Sundance::QuadBasisSpecifier& qbs)
    {
      return qbs.hashCode();
    }
}
#endif

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Contact:

Kevin Long (krlong@ca.sandia.gov)


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