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VectorPartitioned.cpp
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Fri, Sep 27, 00:49
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rGOOSEFEM GooseFEM
VectorPartitioned.cpp
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#include <catch2/catch.hpp>
#include <xtensor/xrandom.hpp>
#include <xtensor/xmath.hpp>
#include <GooseFEM/GooseFEM.h>
#define ISCLOSE(a,b) REQUIRE_THAT((a), Catch::WithinAbs((b), 1.e-12));
TEST_CASE
(
"GooseFEM::VectorPartitioned"
,
"VectorPartitioned.h"
)
{
SECTION
(
"basic"
)
{
GooseFEM
::
Mesh
::
Quad4
::
Regular
mesh
(
3
,
3
);
auto
iip
=
xt
::
eval
(
xt
::
arange
<
size_t
>
(
4
*
2
));
GooseFEM
::
VectorPartitioned
vector
(
mesh
.
conn
(),
mesh
.
dofs
(),
iip
);
xt
::
xtensor
<
bool
,
2
>
is_p
=
{
{
true
,
true
},
{
true
,
true
},
{
true
,
true
},
{
true
,
true
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
},
{
false
,
false
}};
REQUIRE
(
xt
::
all
(
xt
::
equal
(
vector
.
dofs_is_p
(),
is_p
)));
REQUIRE
(
xt
::
all
(
xt
::
not_equal
(
vector
.
dofs_is_u
(),
is_p
)));
}
SECTION
(
"asDofs"
)
{
GooseFEM
::
Mesh
::
Quad4
::
Regular
mesh
(
9
,
9
);
auto
dofs
=
mesh
.
dofs
();
auto
nodesLeft
=
mesh
.
nodesLeftOpenEdge
();
auto
nodesRight
=
mesh
.
nodesRightOpenEdge
();
auto
nodesTop
=
mesh
.
nodesTopEdge
();
auto
nodesBottom
=
mesh
.
nodesBottomEdge
();
xt
::
view
(
dofs
,
xt
::
keep
(
nodesRight
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesLeft
));
size_t
ni
=
nodesBottom
.
size
();
xt
::
xtensor
<
size_t
,
1
>
iip
=
xt
::
empty
<
size_t
>
({
4
*
ni
});
xt
::
view
(
iip
,
xt
::
range
(
0
*
ni
,
1
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesTop
),
0
);
xt
::
view
(
iip
,
xt
::
range
(
1
*
ni
,
2
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesTop
),
1
);
xt
::
view
(
iip
,
xt
::
range
(
2
*
ni
,
3
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesBottom
),
0
);
xt
::
view
(
iip
,
xt
::
range
(
3
*
ni
,
4
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesBottom
),
1
);
xt
::
xtensor
<
double
,
2
>
u
=
xt
::
random
::
randn
<
double
>
({
mesh
.
nnode
(),
mesh
.
ndim
()});
xt
::
view
(
u
,
xt
::
keep
(
nodesRight
))
=
xt
::
view
(
u
,
xt
::
keep
(
nodesLeft
));
GooseFEM
::
VectorPartitioned
vector
(
mesh
.
conn
(),
dofs
,
iip
);
auto
u_u
=
vector
.
AsDofs_u
(
u
);
auto
u_p
=
vector
.
AsDofs_p
(
u
);
REQUIRE
(
xt
::
allclose
(
u
,
vector
.
NodeFromPartitioned
(
u_u
,
u_p
)));
}
SECTION
(
"copy_u, copy_p"
)
{
GooseFEM
::
Mesh
::
Quad4
::
Regular
mesh
(
9
,
9
);
auto
dofs
=
mesh
.
dofs
();
auto
nodesLeft
=
mesh
.
nodesLeftOpenEdge
();
auto
nodesRight
=
mesh
.
nodesRightOpenEdge
();
auto
nodesTop
=
mesh
.
nodesTopEdge
();
auto
nodesBottom
=
mesh
.
nodesBottomEdge
();
xt
::
view
(
dofs
,
xt
::
keep
(
nodesRight
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesLeft
));
size_t
ni
=
nodesBottom
.
size
();
xt
::
xtensor
<
size_t
,
1
>
iip
=
xt
::
empty
<
size_t
>
({
4
*
ni
});
xt
::
view
(
iip
,
xt
::
range
(
0
*
ni
,
1
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesTop
),
0
);
xt
::
view
(
iip
,
xt
::
range
(
1
*
ni
,
2
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesTop
),
1
);
xt
::
view
(
iip
,
xt
::
range
(
2
*
ni
,
3
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesBottom
),
0
);
xt
::
view
(
iip
,
xt
::
range
(
3
*
ni
,
4
*
ni
))
=
xt
::
view
(
dofs
,
xt
::
keep
(
nodesBottom
),
1
);
xt
::
xtensor
<
double
,
2
>
u
=
xt
::
random
::
randn
<
double
>
({
mesh
.
nnode
(),
mesh
.
ndim
()});
xt
::
view
(
u
,
xt
::
keep
(
nodesRight
))
=
xt
::
view
(
u
,
xt
::
keep
(
nodesLeft
));
GooseFEM
::
VectorPartitioned
vector
(
mesh
.
conn
(),
dofs
,
iip
);
xt
::
xtensor
<
double
,
2
>
v
=
xt
::
empty
<
double
>
({
mesh
.
nnode
(),
mesh
.
ndim
()});
vector
.
copy_u
(
u
,
v
);
vector
.
copy_p
(
u
,
v
);
REQUIRE
(
xt
::
allclose
(
u
,
v
));
}
}
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