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Commits
65385676
Commit
65385676
authored
Feb 27, 2013
by
Laurent Belcour
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Adding functionality to the Fourier transform module
parent
daed4acb
Changes
2
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Inline
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Showing
2 changed files
with
33 additions
and
21 deletions
+33
-21
sources/core/args.h
sources/core/args.h
+1
-2
sources/softs/fourieranalysis/main.cpp
sources/softs/fourieranalysis/main.cpp
+32
-19
No files found.
sources/core/args.h
View file @
65385676
...
...
@@ -95,7 +95,7 @@ class arguments
{
int
i
=
0
;
size_t
pos
=
1
;
while
(
pos
!=
std
::
string
::
npos
)
while
(
pos
!=
std
::
string
::
npos
&&
i
<
size
)
{
size_t
ppos
=
s
.
find
(
','
,
pos
);
...
...
@@ -112,7 +112,6 @@ class arguments
++
i
;
}
}
std
::
cout
<<
std
::
endl
;
return
res
;
}
}
...
...
sources/softs/fourieranalysis/main.cpp
View file @
65385676
...
...
@@ -25,7 +25,7 @@ int main(int argc, char** argv)
plugins_manager
manager
(
args
)
;
if
(
args
.
is_defined
(
"help"
))
{
std
::
cout
<<
"<<HELP>>
data2gnuplot
--input data.file --output gnuplot.file --loader loader.so"
<<
std
::
endl
;
std
::
cout
<<
"<<HELP>>
fouriertransform
--input data.file --output gnuplot.file --loader loader.so
--in [input vector] --raw gnuplot.file
"
<<
std
::
endl
;
std
::
cout
<<
" - input and output are mandatory parameters"
<<
std
::
endl
;
return
0
;
}
...
...
@@ -58,10 +58,11 @@ int main(int argc, char** argv)
std
::
cout
<<
"<<INFO>> will export "
<<
d
->
size
()
<<
" elements"
<<
std
::
endl
;
double
theta_in
=
(
double
)
args
.
get_float
(
"theta"
,
0.0
f
);
double
phi_in
=
(
double
)
args
.
get_float
(
"phi"
,
0.0
f
);
vec
in
(
3
),
out
(
3
)
;
vec
arg_in
=
args
.
get_vec
(
"in"
,
2
);
double
theta_in
=
(
double
)
arg_in
[
0
];
double
phi_in
=
(
double
)
arg_in
[
1
];
in
[
0
]
=
cos
(
phi_in
)
*
sin
(
theta_in
);
in
[
1
]
=
sin
(
phi_in
)
*
sin
(
theta_in
);
in
[
2
]
=
cos
(
theta_in
);
...
...
@@ -79,7 +80,8 @@ int main(int argc, char** argv)
out
[
1
]
=
sin
(
phi
)
*
sin
(
theta
);
out
[
2
]
=
cos
(
theta
);
vec
v
=
d
->
value
(
in
,
out
)
;
xdata
[
j
]
=
j
-
N
/
2
;
xdata
[
j
]
=
theta
;
data
[
j
]
=
v
[
0
]
;
/*
...
...
@@ -92,10 +94,7 @@ int main(int argc, char** argv)
}
// Create the MATLAB defintion of objects
// MATLAB defines a quad prog as
// 1/2 x' H x + f' x with A x <= b
//
mxArray
*
d
,
*
x
;
mxArray
*
d
,
*
x
,
*
f
;
d
=
mxCreateDoubleMatrix
(
N
,
1
,
mxREAL
);
x
=
mxCreateDoubleMatrix
(
N
,
1
,
mxREAL
);
memcpy
((
void
*
)
mxGetPr
(
d
),
(
void
*
)
data
,
N
*
sizeof
(
double
));
...
...
@@ -108,21 +107,35 @@ int main(int argc, char** argv)
output
[
BUFFER_SIZE
]
=
'\0'
;
engOutputBuffer
(
ep
,
output
,
BUFFER_SIZE
)
;
engEvalString
(
ep
,
"normd = sum(d) / max(size(d));"
);
std
::
cout
<<
output
<<
std
::
endl
;
engEvalString
(
ep
,
"d = d ./ normd;"
);
std
::
cout
<<
output
<<
std
::
endl
;
engEvalString
(
ep
,
"f = real(fftshift(fft(d)));"
);
std
::
cout
<<
output
<<
std
::
endl
;
engEvalString
(
ep
,
"ff = fftshift(fft(d));"
);
engEvalString
(
ep
,
"f = sqrt(real(ff).^2 + imag(ff).^2);"
);
engEvalString
(
ep
,
"normf = sum(f) / max(size(f));"
);
std
::
cout
<<
output
<<
std
::
endl
;
engEvalString
(
ep
,
"f = f ./ normf;"
);
std
::
cout
<<
output
<<
std
::
endl
;
engEvalString
(
ep
,
"plot(x, f, x, d)"
);
std
::
cout
<<
output
<<
std
::
endl
;
// engEvalString(ep, "plot(x, f, x, d)");
// std::cout << output << std::endl ;
f
=
engGetVariable
(
ep
,
"f"
);
std
::
ofstream
out_fourier
(
args
[
"output"
].
c_str
(),
std
::
ios_base
::
trunc
);
double
*
val
=
(
double
*
)
mxGetData
(
f
)
;
for
(
int
i
=
0
;
i
<
N
;
++
i
)
{
out_fourier
<<
i
-
N
/
2
<<
"
\t
"
<<
val
[
i
]
<<
std
::
endl
;
}
out_fourier
.
close
();
char
c
;
std
::
cin
>>
c
;
if
(
args
.
is_defined
(
"raw"
))
{
std
::
ofstream
out_raw
(
args
[
"raw"
].
c_str
(),
std
::
ios_base
::
trunc
);
for
(
int
i
=
0
;
i
<
N
;
++
i
)
{
out_raw
<<
xdata
[
i
]
<<
"
\t
"
<<
data
[
i
]
<<
std
::
endl
;
}
out_raw
.
close
();
}
mxDestroyArray
(
x
);
mxDestroyArray
(
d
);
engClose
(
ep
);
}
else
...
...
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