include/ewalena/numerics/basis_base.h

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// -------------------------------------------------------------------
// @author Toby D. Young
// @version $Id: basis_state_base.h 702 2012-02-13 02:08:58Z tyoung76 $
//
// Copyright 2012 namespace ewalena authors. All rights reserved.
//
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// modification, are permitted provided that the following conditions
// are met:
//
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//
// 2. Redistributions in binary form must reproduce the above
//    copyright notice, this list of conditions and the following
//    disclaimer in the documentation and/or other materials provided
//    with the distribution.
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#ifndef __ewalena_basis_base_h
#define __ewalena_basis_base_h

#ifdef EWALENA_HAVE_CONFIG_H
#include <ewalena/base/config.h>
#endif

#include <ewalena/numerics/basis_data.h>
#include <ewalena/base/point.h>

#include <string>
#include <vector>

namespace ewalena
{

  template <int dim, typename ValueType = double>
    class BasisBase
    :
    protected BasisData<ValueType>
    {
      
    private:
    
    Point<dim, ValueType> __origin;
    
    protected:
    
    public:
    
    
    BasisBase (const BasisData<ValueType> &basis_data); 
    
    virtual ~BasisBase (); 
    
    unsigned int n_contractions () const;
    
    virtual std::string name () const;
    
    ewalena::Point<dim, ValueType> origin () const; 
    
    bool is_orthogonal_basis (const ValueType tolerance = 1e-12);
    
    virtual ValueType value (const ewalena::Point<dim, ValueType> &point) const;
    
    virtual ValueType laplacian (const BasisBase<dim, ValueType> &basis_i, 
                                 const BasisBase<dim, ValueType> &basis_j) const;
    
    virtual ValueType integral (const BasisBase<dim, ValueType> &basis_i, 
                                const BasisBase<dim, ValueType> &basis_j) const; 
    
    virtual ValueType integral (const BasisBase<dim, ValueType> &basis_i, 
                                const BasisBase<dim, ValueType> &basis_j,
                                const BasisBase<dim, ValueType> &basis_k,
                                const BasisBase<dim, ValueType> &basis_l) const; 
    
    }; /* BasisBase */

} /* namespace ewalena */

#endif /* __ewalena_basis_base_h */