NAME
r.surf.fractal - GRASS module to create a fractal surface of a given
fractal dimension.
Uses spectral synthesis method. Can create intermediate layers showing
the build up of different spectral coefficients (see Saupe, pp.106-107
for an example of this).
Use this module to generate naturally looking sythetical elevation models
(DEM).
Usage:
r.surf.fractal out=name [d=value] [n=value]
Parameters:
- out
- Name of fractal surface raster layer to be produced
- d
- Fractal dimension of surface (2 < D < 3)
- Default: 2.05
- n
- Number of intermediate images to produce
- Default: 0
SEE ALSO
r.mask
r.surf.contour
r.surf.idw
s.surf.idw
s.surf.rst
r.surf.gauss
r.surf.random
r.surf.idw2
v.surf.rst
parser
REFERENCE
Saupe, D. (1988) Algorithms for random fractals, in Barnsley M.,
Devaney R., Mandelbrot B., Peitgen, H-O., Saupe D., and Voss R.
(1988) The Science of Fractal Images, Ch. 2, pp.71-136. London:
Springer-Verlag.
jwo@le.ac.uk
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