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ift
NIFTy
Commits
97eb9cf2
Commit
97eb9cf2
authored
Jul 19, 2018
by
Philipp Arras
Browse files
Cosmetics
parent
0ebb2050
Changes
1
Hide whitespace changes
Inline
Side-by-side
nifty5/operators/central_zero_padder.py
View file @
97eb9cf2
...
...
@@ -7,8 +7,8 @@ from ..domain_tuple import DomainTuple
from
..domains.rg_space
import
RGSpace
from
..field
import
Field
class
CentralZeroPadder
(
LinearOperator
):
class
CentralZeroPadder
(
LinearOperator
):
def
__init__
(
self
,
domain
,
new_shape
,
space
=
0
):
super
(
CentralZeroPadder
,
self
).
__init__
()
...
...
@@ -22,7 +22,7 @@ class CentralZeroPadder(LinearOperator):
raise
TypeError
(
"RGSpace must not be harmonic"
)
if
len
(
new_shape
)
!=
len
(
dom
.
shape
):
raise
ValueError
(
"Shape missmatch"
)
if
any
(
[
a
<
b
for
a
,
b
in
zip
(
new_shape
,
dom
.
shape
)]):
if
any
([
a
<
b
for
a
,
b
in
zip
(
new_shape
,
dom
.
shape
)]):
raise
ValueError
(
"New shape must be larger than old shape"
)
tgt
=
RGSpace
(
new_shape
,
dom
.
distances
)
...
...
@@ -36,16 +36,16 @@ class CentralZeroPadder(LinearOperator):
if
i
in
axes
:
slicer_fw
=
slice
(
0
,
self
.
_domain
.
shape
[
i
]
/
2
)
slicer_bw
=
slice
(
-
self
.
_domain
.
shape
[
i
]
/
2
,
None
)
slicer
.
append
(
[
slicer_fw
,
slicer_bw
]
)
slicer
.
append
([
slicer_fw
,
slicer_bw
]
)
self
.
slicer
=
list
(
itertools
.
product
(
*
slicer
))
for
i
in
range
(
len
(
self
.
slicer
)):
for
j
in
range
(
len
(
self
.
_domain
.
shape
)):
if
not
j
in
axes
:
if
j
not
in
axes
:
tmp
=
(
list
(
self
.
slicer
[
i
]))
tmp
.
insert
(
j
,
slice
(
None
))
self
.
slicer
[
i
]
=
tmp
@
property
def
domain
(
self
):
return
self
.
_domain
...
...
@@ -61,15 +61,15 @@ class CentralZeroPadder(LinearOperator):
def
apply
(
self
,
x
,
mode
):
self
.
_check_input
(
x
,
mode
)
x
=
x
.
val
if
mode
==
self
.
TIMES
:
y
=
np
.
zeros
(
self
.
_target
.
shape
)
y
=
np
.
zeros
(
self
.
_target
.
shape
)
for
i
in
self
.
slicer
:
y
[
i
]
=
x
[
i
]
return
Field
(
self
.
_target
,
val
=
y
)
if
mode
==
self
.
ADJOINT_TIMES
:
y
=
np
.
zeros
(
self
.
_domain
.
shape
)
y
=
np
.
zeros
(
self
.
_domain
.
shape
)
for
i
in
self
.
slicer
:
y
[
i
]
=
x
[
i
]
return
Field
(
self
.
_domain
,
val
=
y
)
return
Field
(
self
.
_domain
,
val
=
y
)
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