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Mesh.h
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Created
Tue, Sep 10, 01:32
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2 KB
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text/x-c
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Thu, Sep 12, 01:32 (1 d, 23 h)
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rGOOSEFEM GooseFEM
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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