[Insight-users] FFTW
Renaud Isabelle
renauisa at yahoo.fr
Thu Nov 17 12:06:01 EST 2005
Hi Hans,
Thanks for your reply.
I think you are lucky: apparently, you are building under Linux/Unix, and so, fftw librairies were already installed with Unix package and your system knows exactly where to look for them. Actually, if you take a look at ITK/FindFFTW.cmake, you will see that default directories containing your librairies and your fftw3.h are already mentioned.
As for me, I am building my projects under CMake followed by Microsoft Visual C++ 6.0. I don't know which files I have to modify to make it work: FindFFTW.cmake, my CMakeLists.txt of my own project ..... ?
Isabelle
Hans Johnson <hans-johnson at uiowa.edu> a écrit :
Renaud,
I have a pre-itk project that has been retrofitted to use the FFTW
classes from ITK. Here is some source code that is run on many
different unix platforms every night and build successfully:
http://www.psychiatry.uiowa.edu/cgi-bin/viewcvs.cgi/src/iplProg/gec/gecresearch/gecdeformation/gecitkfft.cc?rev=1.5&cvsroot=brains2&sortby=date&content-type=text/vnd.viewcvs-markup
See
http://delta.psychiatry.uiowa.edu:8081/BRAINS/Dashboard/TestCatalog?trackid=142&submissionid=837&showall=0&sortBy=name&order=ascending&roottest=.Test.src.iplProg.gec.gectools
for proof that the tests are passing.
Here are the CMake options I use to build with FFTW (i.e. latest CVS
version as of October):
FFTW_INCLUDE_PATH:PATH=$(FFTW_INCLUDE_PATH)
FFTWD_LIB:FILEPATH=$(INSTALL_PREFIX)/lib/libfftw3.$(LIB_EXT)
FFTWF_LIB:FILEPATH=$(INSTALL_PREFIX)/lib/libfftw3f.$(LIB_EXT)
USE_FFTWF:BOOL=ON
USE_FFTWD:BOOL=OFF
USE_SCSL:BOOL=OFF
I hope this helps.
Hans
Renaud Isabelle wrote:
> Hi,
>
> I have just downloaded and installed FFTW on my computer.
>
> Now, I see that there were some modifications about using FFTW witk
> ITK: No need to define USE_FFTW but USE_FFTWD and USE_FFTWF instead?!
>
> Could someone tell me *which steps I have to follow to use
> itkFFTWRealToComplexConjugateImageFilter in my own proje*ct?
>
> BTW, I don't understand why I can use
> itkVnlFFTRealToComplexConjugateImageFilter like that and can't do the
> same way with itkFFTWRealToComplexConjugateImageFilter. While
> compiling my own project calling
> /*typedef itk::FFTWRealToComplexConjugateImageFilter
> FFTFilter*/; it says that *FFTWRealToComplexConjugateImageFilter is
> not a member of itk*. What should I do exactly to make it a member?
>
> Plea! se help me to manage with all of this. This is quite urgent and
> I can't find any help on the net that could satisfy me.
>
> Isabelle
>
>
>
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