NC example added

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49133 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.fft/i.fft.html

@@ -23,26 +23,35 @@ The current geographic region and mask settings are respected when
 reading the input file. The presence of nulls or a mask will make the
 resulting fast Fourier transform invalid.
 
-<h2>SEE ALSO</h2>
+<h2>EXAMPLE</h2>
 
-M. Frigo and S. G. Johnson (1998): "FFTW: An Adaptive Software Architecture
-for the FFT". See <a href="http://www.fftw.org/">www.fftw.org</a>: FFTW is a C subroutine library
-for computing the Discrete Fourier Transform (DFT) in one or more
-dimensions, of both real and complex data, and of arbitrary input size.
+North Carolina example:
 
-<p>
+<div class="code"><pre>
+g.region rast=lsat7_2002_70
+i.fft input_image=lsat7_2002_70 real=lsat7_2002_70.real imaginary=lsat7_2002_70.imag
 
-<b>Remote Sensing Digital Image Analysis</b>,
-by John A. Richards,
-Springer-Verlag, 1986.
+# set region to resulting FFT output map (due to new FFT coordinate space):
+g.region rast=lsat7_2002_70.real -p
+d.mon x0
+d.rast lsat7_2002_70.real
+d.rast lsat7_2002_70.imag
+</pre></div>
 
+<h2>SEE ALSO</h2>
 
-<p>
+<ul>
+<li> M. Frigo and S. G. Johnson (1998): "FFTW: An Adaptive Software Architecture
+for the FFT". See <a href=>www.FFTW.org</a>: FFTW is a C subroutine library
+for computing the Discrete Fourier Transform (DFT) in one or more
+dimensions, of both real and complex data, and of arbitrary input size.
+
+<li> John A. Richards, 1986. Remote Sensing Digital Image Analysis, Springer-Verlag.
+</ul>
 
-Personal communication,
-between progam author and Ali R. Vali,
-Space Research Center, 
-<a href="http://www.utexas.edu">University of Texas</A>, Austin, 1990.
+<P>
+Personal communication, between progam author and Ali R. Vali,
+Space Research Center, <A HREF="http://www.utexas.edu">University of Texas</A>, Austin, 1990.
 
 <p>