gsTHBSpline.h

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#pragma once

#include <gsCore/gsLinearAlgebra.h>
#include <gsHSplines/gsTHBSplineBasis.h>
#include <gsCore/gsForwardDeclarations.h>

namespace gismo
{

template<short_t d, class T>
class gsTHBSpline : public gsGeoTraits<d,T>::GeometryBase
{
public:
    typedef gsTHBSplineBasis<d,T> Basis;

    typedef typename Basis::tensorBasis tensorBasis;

    typedef typename gsGeoTraits<d,T>::GeometryBase Base;

    typedef memory::shared_ptr< gsTHBSpline > Ptr;

    typedef memory::unique_ptr< gsTHBSpline > uPtr;

    typedef typename
    util::conditional<d==1, gsConstantFunction<T>, gsTHBSpline<static_cast<short_t>(d-1),T>
                      >::type BoundaryGeometryType;

    typedef typename gsTHBSplineBasis<d,T>::BoundaryBasisType BoundaryBasisType;

public:

    gsTHBSpline() { }

    gsTHBSpline( const Basis & basis, const gsMatrix<T> & coefs ) :
    Base( basis, coefs ) 
    { }

    gsTHBSpline( const Basis& basis, gsMatrix<T> & coefs ) :
        Base( basis, coefs )
    { }

    explicit gsTHBSpline( const gsTensorBSpline<d,T> & tbsp )
    {
        this->m_basis = new Basis( tbsp.basis() );
        this->m_coefs = tbsp.coefs();
    }

    GISMO_CLONE_FUNCTION(gsTHBSpline)

    GISMO_BASIS_ACCESSORS

public:


// ************************************************
//  Other member functions
// ************************************************
public:
    void getBsplinePatches(gsMatrix<index_t>& b1, gsMatrix<index_t>& b2, gsVector<index_t>& level) const;
    //\param[out] bpatches list of B-spline patches associated with the boxes
    //void getBsplinePatches(gsMatrix<index_t>& b1, gsMatrix<index_t>& b2, gsVector<index_t>& level, std::vector< gsTensorBSpline<2> > & bpatches) const;

//    void convertToBSpline( gsTensorBSpline<d,T,gsCompactKnotVector<T> >& result );

    void convertToBSpline( gsTensorBSpline<d,T>& result );

    void increaseMultiplicity(index_t lvl, int dir, T knotValue, int mult = 1);


private:

    void getBsplinePatchGlobal(gsVector<index_t> b1, gsVector<index_t> b2, unsigned l, gsTensorBSpline<2> geo) const;
    void globalRefinement(int level)const;

    void initialize_cmatrix(int col, int c_level) const;

    void return_cp_1D(const gsMatrix<T> & mat, int direction, gsMatrix<T>& cp)const;

public:

    void slice(index_t dir_fixed,T par,BoundaryGeometryType & result) const;

}; // class gsTHBSpline

#ifdef GISMO_WITH_PYBIND11

  void pybind11_init_gsTHBSpline2(pybind11::module &m);
  void pybind11_init_gsTHBSpline3(pybind11::module &m);
  void pybind11_init_gsTHBSpline4(pybind11::module &m);

#endif // GISMO_WITH_PYBIND11

} // namespace gismo


#ifndef GISMO_BUILD_LIB
#include GISMO_HPP_HEADER(gsTHBSpline.hpp)
#endif