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pycodegen
lbmpy
Commits
724c9552
Commit
724c9552
authored
6 years ago
by
Martin Bauer
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EsoTwist field accessor
parent
8c7b7399
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fieldaccess.py
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724c9552
...
@@ -4,6 +4,12 @@ from lbmpy.stencils import inverse_direction
...
@@ -4,6 +4,12 @@ from lbmpy.stencils import inverse_direction
from
pystencils
import
Field
from
pystencils
import
Field
__all__
=
[
'
PdfFieldAccessor
'
,
'
CollideOnlyInplaceAccessor
'
,
'
StreamPullTwoFieldsAccessor
'
,
'
AAEvenTimeStepAccessor
'
,
'
AAOddTimeStepAccessor
'
,
'
EsoTwistEvenTimeStepAccessor
'
,
'
EsoTwistOddTimeStepAccessor
'
,
'
visualize_pdf_field_accessor
'
,
'
visualize_field_mapping
'
]
# ------------------------------------------------ Interface -----------------------------------------------------------
# ------------------------------------------------ Interface -----------------------------------------------------------
from
pystencils.astnodes
import
LoopOverCoordinate
from
pystencils.astnodes
import
LoopOverCoordinate
...
@@ -121,6 +127,44 @@ class AAOddTimeStepAccessor(PdfFieldAccessor):
...
@@ -121,6 +127,44 @@ class AAOddTimeStepAccessor(PdfFieldAccessor):
return
[
field
[
d
](
i
)
for
i
,
d
in
enumerate
(
stencil
)]
return
[
field
[
d
](
i
)
for
i
,
d
in
enumerate
(
stencil
)]
class
EsoTwistOddTimeStepAccessor
(
PdfFieldAccessor
):
@staticmethod
def
read
(
field
,
stencil
):
result
=
[]
for
direction
in
stencil
:
inv_dir
=
inverse_direction
(
direction
)
spatial_offset
=
tuple
(
max
(
e
,
0
)
for
e
in
inv_dir
)
result
.
append
(
field
[
spatial_offset
](
stencil
.
index
(
inv_dir
)))
return
result
@staticmethod
def
write
(
field
,
stencil
):
result
=
[]
for
i
,
direction
in
enumerate
(
stencil
):
spatial_offset
=
tuple
(
max
(
e
,
0
)
for
e
in
direction
)
result
.
append
(
field
[
spatial_offset
](
i
))
return
result
class
EsoTwistEvenTimeStepAccessor
(
PdfFieldAccessor
):
@staticmethod
def
read
(
field
,
stencil
):
result
=
[]
for
i
,
direction
in
enumerate
(
stencil
):
spatial_offset
=
tuple
(
max
(
-
e
,
0
)
for
e
in
direction
)
result
.
append
(
field
[
spatial_offset
](
i
))
return
result
@staticmethod
def
write
(
field
,
stencil
):
result
=
[]
for
direction
in
stencil
:
inv_dir
=
inverse_direction
(
direction
)
spatial_offset
=
tuple
(
max
(
e
,
0
)
for
e
in
direction
)
result
.
append
(
field
[
spatial_offset
](
stencil
.
index
(
inv_dir
)))
return
result
# -------------------------------------------- Visualization -----------------------------------------------------------
# -------------------------------------------- Visualization -----------------------------------------------------------
...
...
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