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Mesh.h
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Sat, Jun 29, 02:04

Mesh.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_MESH_H
#define GOOSEFEM_MESH_H
// -------------------------------------------------------------------------------------------------
#include "GooseFEM.h"
// ======================================== GooseFEM::Mesh =========================================
namespace GooseFEM {
namespace Mesh {
// -------------------------------------------------------------------------------------------------
// list with DOF-numbers in sequential order
inline xt::xtensor<size_t,2> dofs(size_t nnode, size_t ndim);
// renumber to lowest possible numbers (e.g. [0,3,4,2] -> [0,2,3,1])
inline xt::xtensor<size_t,2> renumber(const xt::xtensor<size_t,2> &dofs);
// get the list needed to renumber: dofs_renumbered(i,j) = index(dofs(i,j))
inline xt::xtensor<size_t,1> renumber_index(const xt::xtensor<size_t,2> &dofs);
// renumber such that certain indices "iip" are are moved to the beginning or the end
// (get the lowest or the highest indices); if "iiu" are the remaining indices, after renumbering:
// iiu = arange(nnu), iip = nnu + arange(nnp)
inline xt::xtensor<size_t,2> reorder(const xt::xtensor<size_t,2> &dofs,
const xt::xtensor<size_t,1> &iip, const std::string &location="end");
// get the list needed to reorder: dofs_reordered(i,j) = index(dofs(i,j))
inline xt::xtensor<size_t,1> reorder_index(const xt::xtensor<size_t,2> &dofs,
const xt::xtensor<size_t,1> &iip, const std::string &location="end");
// number of elements connected to each node
inline xt::xtensor<size_t,1> coordination(const xt::xtensor<size_t,2> &conn);
// elements connected to each node
inline SpMatS elem2node(const xt::xtensor<size_t,2> &conn);
// -------------------------------------------------------------------------------------------------
}} // namespace ...
// =================================================================================================
#endif

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