README
1r.surf.fractal
2
3 GRASS module to create a fractal surface of a given fractal dimension.
4 Uses spectral synthesis method. Can create intermediate layers showing
5 the build up of different spectral coefficients (see Saupe, pp.106-107
6 for an example of this).
7
8 Reference:
9
10 Saupe, D. (1988) Algorithms for random fractals, in Barnsley M.,
11 Devaney R., Mandelbrot B., Peitgen, H-O., Saupe D., and Voss R.
12 (1988) The Science of Fractal Images, Ch. 2, pp.71-136. London:
13 Springer-Verlag.
14
15Jo Wood, 19th October, 1994
16
17-------
18
19Usage:
20 r.surf.fractal out=name [d=value] [n=value]
21
22Parameters:
23 out Name of fractal surface raster layer
24 d Fractal dimension of surface (2 < D < 3)
25 default: 2.05
26 n Number of intermediate images to produce
27 default: 0
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29