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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