2D Fourier and Plot3D???
- To: mathgroup at smc.vnet.net
- Subject: [mg28111] 2D Fourier and Plot3D???
- From: Patrick Ladam <ladam at smbh.smbh.univ-paris13.fr>
- Date: Sat, 31 Mar 2001 02:58:46 -0500 (EST)
- Organization: Universite Paris XIII
- Sender: owner-wri-mathgroup at wolfram.com
Hello to all,
I am desperatly trying to have a display of a 2D Fourier transform of
data in vain...
I don't have my notebook here but here is what I have done:
I was able to generate a 2D list of data (each list having 2^n data for
discrete FT) using:
Abs[Fourier[{{my_function_of_x},{my_function_of_y}},{(x,0,255),(y,0,255)}]]
it gave me a 2D list looking like:
{{value_a, value_b, ....},{value_w, value_z,.... }}
each list having 256 elements
Now when I try to have a 3D plot of this it won't work
I tried a huge amount of combinations to get this 3D plot using
Do[Plot3D[blablabla]] and it never
worked....
It looks to me that the arguments expected by Plot3D or ListPlot3D are
uncompatible with those
of the Fourier command.
There is I guess a way of doing this sort of thing so if someone has
some guidance I would really
appreciate (I have spent hours and hours with no success...)
A piece of code would be the best if you have one under the arm....
ThanX a lot
Bye
--
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