NoData.h

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//  Copyright (c) 2009 Scientific Computing and Imaging Institute,
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///    @file    NoData.h
///    @author  Martin Cole, Frank B. Sachse
///    @date    Mon Aug 23 09:57:14 2004

#ifndef CORE_BASIS_NODATA_H
#define CORE_BASIS_NODATA_H 1

#include <Core/Basis/Basis.h>
#include <Core/Basis/NoElementWeights.h>
#include <Core/Utils/Legacy/TypeDescription.h>
//#include <Core/Persistent/Persistent.h>
#include <Core/Datatypes/Legacy/Base/TypeName.h>

namespace SCIRun {
namespace Core {
namespace Basis {

/// Class for describing unit geometry of NoDataBasis 
class NoDataUnitElement {
public: 
  NoDataUnitElement() {}
  virtual ~NoDataUnitElement() {}

  static double unit_vertices[1][1]; ///< Parametric coordinates of vertices 
  static int unit_edges[1][1];    ///< References to vertices of unit edge 

  /// return dimension of domain 
  static int domain_dimension()
    { return -1; } 
  
  /// return size of domain   
  static double domain_size() 
    { return 0.0; }
  
  /// return number of vertices
  static int number_of_vertices() 
    { return 0; }
  
  /// return number of vertices in mesh
  static int number_of_mesh_vertices() 
    { return 0; }
  
  /// return degrees of freedom
  static int dofs() 
    { return 0; } 

  /// return number of edges 
  static int number_of_edges() 
    { return 0; } 
  
  /// return number of vertices per face 
  static int vertices_of_face() 
    { return 0; } 
  
  /// return number of faces per cell 
  static int faces_of_cell() 
    { return 0; } 

  static double volume() { return 0.; } ///< return volume
};


/// Class for handling of element without storage for field variables
template <class T> /// for compilation consistency
  class NoDataBasis : public BasisSimple<T>, 
                      public NoDataUnitElement,
                      public NoElementWeights
{
public:
  typedef T value_type;


  NoDataBasis() {}
  virtual ~NoDataBasis() {}
  
  static int polynomial_order() { return -1; }
 
  template <class VECTOR>
  void get_weights(const VECTOR &coords, unsigned int elem,  double *w) const
  {
  }

  template <class VECTOR>
  void get_derivate_weights(const VECTOR &coords, unsigned int elem, double *w) const
  {
  }

  static  const std::string type_name(int n = -1);

  virtual void io (Piostream& str); 

};


template <class T>
const std::string
NoDataBasis<T>::type_name(int n)
{
  ASSERT((n >= -1) && n <= 1);
  if (n == -1)
  {
    static const std::string name = TypeNameGenerator::make_template_id(type_name(0), type_name(1));
    return name;
  }
  else if (n == 0)
  {
    static const std::string nm("NoDataBasis");
    return nm;
  }
  else 
  {
    return find_type_name((T *)0);
  }
}




#define NODATABASIS_VERSION 1


}}
template <class T>
const TypeDescription* get_type_description(Core::Basis::NoDataBasis<T> *)
{
  static TypeDescription *td = 0;
  if (!td)
  {
    const TypeDescription *sub = get_type_description((T*)0);
    TypeDescription::td_vec *subs = new TypeDescription::td_vec(1);
    (*subs)[0] = sub;
    td = new TypeDescription("NoDataBasis", subs, 
      std::string(__FILE__), 
      "SCIRun", 
      TypeDescription::BASIS_E);
  }
  return td;
}
  
  template <class T>
  void
  Core::Basis::NoDataBasis<T>::io(Piostream &stream)
  {
    stream.begin_class(get_type_description(this)->get_name(),
                       NODATABASIS_VERSION);
    stream.end_class();
  }
}

#endif