[GRASS-dev] Re: [GRASS-SVN] r34353 - in grass/trunk/imagery: i.fft i.ifft

[Paul Kelly]

On Tue, 18 Nov 2008, Markus Neteler wrote:

> On Tue, Nov 18, 2008 at 2:41 AM,  <svn_grass at osgeo.org> wrote:
>> Author: glynn
>> Date: 2008-11-17 20:41:17 -0500 (Mon, 17 Nov 2008)
>> New Revision: 34353
>>
>> Removed:
>>   grass/trunk/imagery/i.fft/fft_colors.c
>>   grass/trunk/imagery/i.fft/globals.h
>>   grass/trunk/imagery/i.fft/local_proto.h
>>   grass/trunk/imagery/i.fft/orig_wind.c
>>   grass/trunk/imagery/i.fft/save_fft.c
>>   grass/trunk/imagery/i.ifft/globals.h
>>   grass/trunk/imagery/i.ifft/local_proto.h
>>   grass/trunk/imagery/i.ifft/orig_wind.c
>> Modified:
>>   grass/trunk/imagery/i.fft/Makefile
>>   grass/trunk/imagery/i.fft/i.fft.html
>>   grass/trunk/imagery/i.fft/main.c
>>   grass/trunk/imagery/i.ifft/Makefile
>>   grass/trunk/imagery/i.ifft/i.ifft.html
>>   grass/trunk/imagery/i.ifft/main.c
>> Log:
>> Rewrite i.fft, i.ifft
>> Output maps are FP
>> Don't use cell_misc/<map>/fft{real,imag} files, use the output maps
>> Don't rescale to powers of two (not needed with FFTW)
>> Use fft2() with FFTW-style interleaved array, not fft() with separate real/imaginary arrays
>> Miscellaneous clean-up
>
> backport this?

No specific ideas on this change, but if we're working towards a stable 
settled down 6.x then I don't think the type of miscellaneous cleanups 
that Glynn is doing in 7.x are candidates for backporting.

Paul