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Mesh.h
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Sun, May 5, 03:00

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 MatS dofs(size_t nnode, size_t ndim);
// -------------------------------------------------------------------------------------------------
// renumber to lowest possible numbers (e.g. [0,3,4,2] -> [0,2,3,1])
// - core
template<class InputIterator, class OutputIterator>
inline void renumber(
const InputIterator first, const InputIterator last, const OutputIterator result
);
// - interface
inline MatS renumber(const MatS &dofs);
// -------------------------------------------------------------------------------------------------
// reorder (and renumber) such that certain indices "idx" are moved to the beginning or the end
// - core
template<class InputIterator, class OutputIterator, class IndexIterator>
inline void reorder(
const InputIterator first, const InputIterator last, const OutputIterator result,
const IndexIterator idx_first, const IndexIterator idx_last, std::string location
);
// - interface
inline MatS reorder(const MatS &dofs, const ColS &idx, std::string location="end");
// -------------------------------------------------------------------------------------------------
// elements connected to each node:
// out[: ,0 ] = number of elements connected to each node
// out[j ,i+1] = "i"th element connected to node "j"
inline SpMatS elem2node(const MatS &conn);
// -------------------------------------------------------------------------------------------------
}} // namespace ...
// =================================================================================================
#endif

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