README 779 B

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