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rGOOSEFEM/src/GooseFEM/Vector.h
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Vector.h
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/* =================================================================================================
(c - GPLv3) T.W.J. de Geus (Tom) | tom@geus.me | www.geus.me | github.com/tdegeus/GooseFEM
================================================================================================= */
#ifndef GOOSEFEM_VECTOR_H
#define GOOSEFEM_VECTOR_H
// -------------------------------------------------------------------------------------------------
#include "GooseFEM.h"
// =========================================== GooseFEM ============================================
namespace GooseFEM {
// -------------------------------------------------------------------------------------------------
class Vector
{
private:
// information
xt::xtensor<size_t,2> m_conn; // connectivity [nelem, nne ]
xt::xtensor<size_t,2> m_dofs; // DOF-numbers per node [nnode, ndim]
xt::xtensor<size_t,2> m_part; // DOF-numbers per node, after partitioning [nnode, ndim]
xt::xtensor<size_t,1> m_iiu; // DOF-numbers that are unknown [nnu]
xt::xtensor<size_t,1> m_iip; // DOF-numbers that are prescribed [nnp]
// dimensions
size_t m_nelem; // number of elements
size_t m_nne; // number of nodes per element
size_t m_nnode; // number of nodes
size_t m_ndim; // number of dimensions
size_t m_ndof; // number of DOFs
size_t m_nnu; // number of unknown DOFs
size_t m_nnp; // number of prescribed DOFs
public:
// notation:
// "nodevec" - nodal vectors - [nnode, ndim]
// "elemvec" - nodal vectors stored per element - [nelem, nne, ndim]
// "dofval" - DOF values - [ndof]
// "dofval_u" - DOF values (Unknown) - [nnu]
// "dofval_p" - DOF values (Prescribed) - [nnp]
// constructor
Vector(){};
Vector(const xt::xtensor<size_t,2> &conn, const xt::xtensor<size_t,2> &dofs);
Vector(const xt::xtensor<size_t,2> &conn, const xt::xtensor<size_t,2> &dofs, const xt::xtensor<size_t,1> &iip);
// dimensions
size_t nelem() const; // number of elements
size_t nne() const; // number of nodes per element
size_t nnode() const; // number of nodes
size_t ndim() const; // number of dimensions
size_t ndof() const; // number of DOFs
size_t nnu() const; // number of unknown DOFs
size_t nnp() const; // number of prescribed DOFs
// DOF lists
xt::xtensor<size_t,2> dofs() const; // DOFs
xt::xtensor<size_t,1> iiu() const; // unknown DOFs
xt::xtensor<size_t,1> iip() const; // prescribed DOFs
// convert vectors (overwrite entries that occur more that once)
xt::xtensor<double,1> asDofs (const xt::xtensor<double,1> &dofval_u, const xt::xtensor<double,1> &dofval_p) const;
xt::xtensor<double,1> asDofs (const xt::xtensor<double,2> &nodevec ) const;
xt::xtensor<double,1> asDofs (const xt::xtensor<double,3> &elemvec ) const;
xt::xtensor<double,1> asDofs_u (const xt::xtensor<double,2> &nodevec ) const;
xt::xtensor<double,1> asDofs_u (const xt::xtensor<double,3> &elemvec ) const;
xt::xtensor<double,1> asDofs_p (const xt::xtensor<double,2> &nodevec ) const;
xt::xtensor<double,1> asDofs_p (const xt::xtensor<double,3> &elemvec ) const;
xt::xtensor<double,2> asNode (const xt::xtensor<double,1> &dofval ) const;
xt::xtensor<double,2> asNode (const xt::xtensor<double,1> &dofval_u, const xt::xtensor<double,1> &dofval_p) const;
xt::xtensor<double,2> asNode (const xt::xtensor<double,3> &elemvec ) const;
xt::xtensor<double,3> asElement(const xt::xtensor<double,1> &dofval ) const;
xt::xtensor<double,3> asElement(const xt::xtensor<double,1> &dofval_u, const xt::xtensor<double,1> &dofval_p) const;
xt::xtensor<double,3> asElement(const xt::xtensor<double,2> &nodevec ) const;
// assemble vectors (adds entries that occur more that once)
xt::xtensor<double,1> assembleDofs (const xt::xtensor<double,2> &nodevec) const;
xt::xtensor<double,1> assembleDofs (const xt::xtensor<double,3> &elemvec) const;
xt::xtensor<double,1> assembleDofs_u(const xt::xtensor<double,2> &nodevec) const;
xt::xtensor<double,1> assembleDofs_u(const xt::xtensor<double,3> &elemvec) const;
xt::xtensor<double,1> assembleDofs_p(const xt::xtensor<double,2> &nodevec) const;
xt::xtensor<double,1> assembleDofs_p(const xt::xtensor<double,3> &elemvec) const;
xt::xtensor<double,2> assembleNode (const xt::xtensor<double,3> &elemvec) const;
};
// -------------------------------------------------------------------------------------------------
} // namespace ...
// =================================================================================================
#endif
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