SyFi::TensorLagrange Class Reference

#include <Lagrange.h>

Inheritance diagram for SyFi::TensorLagrange:

List of all members.

Public Member Functions
	TensorLagrange ()
	TensorLagrange (Polygon &p, unsigned int order=1, unsigned int size=0)
	~TensorLagrange ()
virtual void	set_size (unsigned int size_)
virtual void	compute_basis_functions ()
Protected Attributes
unsigned int	size

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Detailed Description

Definition at line 49 of file Lagrange.h.

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Constructor & Destructor Documentation

SyFi::TensorLagrange::TensorLagrange

(

)

Definition at line 460 of file Lagrange.cpp.

References SyFi::StandardFE::description.

                                       : StandardFE()
        {
                description = "TensorLagrange";
        }

SyFi::TensorLagrange::TensorLagrange	(	Polygon &	p,
		unsigned int	order = 1,
		unsigned int	size = 0
	)

Definition at line 465 of file Lagrange.cpp.

References compute_basis_functions(), SyFi::nsd, and size.

                                                                                         : StandardFE(p, order)
        {
                size = size_ < 0 ? nsd: size_;
                compute_basis_functions();
        }

SyFi::TensorLagrange::~TensorLagrange

(

)

[inline]

Definition at line 56 of file Lagrange.h.

{}

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Member Function Documentation

void SyFi::TensorLagrange::compute_basis_functions

(

)

[virtual]

Reimplemented from SyFi::StandardFE.

Definition at line 471 of file Lagrange.cpp.

References SyFi::Lagrange::compute_basis_functions(), SyFi::StandardFE::description, SyFi::StandardFE::dof(), SyFi::StandardFE::dofs, SyFi::StandardFE::N(), SyFi::StandardFE::nbf(), SyFi::StandardFE::Ns, SyFi::StandardFE::order, SyFi::StandardFE::p, SyFi::StandardFE::set_order(), SyFi::StandardFE::set_polygon(), size, and SyFi::StandardFE::str().

Referenced by TensorLagrange().

        {

                // remove previously computed basis functions and dofs
                Ns.clear();
                dofs.clear();

                if ( order < 1 )
                {
                        throw(std::logic_error("Lagrangian elements must be of order 1 or higher."));
                }

                if ( p == NULL )
                {
                        throw(std::logic_error("You need to set a polygon before the basisfunctions can be computed"));
                }

                if ( size == 0)
                {
                        throw(std::logic_error("You need to set the size of the vector before the basisfunctions can be computed"));
                }

                Lagrange fe;
                fe.set_order(order);
                fe.set_polygon(*p);
                fe.compute_basis_functions();
                GiNaC::lst zero_list;
                for (unsigned int s=1; s<= size*size ; s++)
                {
                        zero_list.append(0);
                }

                for (unsigned int r=0; r< size ; r++)
                {
                        for (unsigned int s=0; s< size ; s++)
                        {
                                for (unsigned int i=0; i< fe.nbf() ; i++)
                                {
                                        GiNaC::lst Nis = zero_list;
                                        Nis.let_op((size)*r + s) = fe.N(i);
                                        GiNaC::ex Nmat = GiNaC::matrix(size,size,Nis);
                                        Ns.insert(Ns.end(), Nmat);

                                        GiNaC::lst dof = GiNaC::lst(fe.dof(i), r, s) ;
                                        dofs.insert(dofs.end(), dof);
                                }
                        }
                }

                description = "Tensor" + fe.str();
        }

void SyFi::TensorLagrange::set_size

(

unsigned int

size_

)

[virtual]

Definition at line 523 of file Lagrange.cpp.

References size.

        {
                size = size_;
        }

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Member Data Documentation

unsigned int SyFi::TensorLagrange::size [protected]

Definition at line 52 of file Lagrange.h.

Referenced by compute_basis_functions(), set_size(), and TensorLagrange().

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The documentation for this class was generated from the following files:

• Lagrange.h
• Lagrange.cpp