r.surf.fractal(1)      Grass User's Manual	r.surf.fractal(1)



NNAAMMEE
       rr..ssuurrff..ffrraaccttaall  - 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 synthetical
       elevation models (DEM).



UUssaaggee::
       rr..ssuurrff..ffrraaccttaall oouutt==_n_a_m_e [dd==_v_a_l_u_e] [nn==_v_a_l_u_e]

PPaarraammeetteerrss::
       oouutt    Name of fractal surface raster layer to be produced

       dd      Fractal  dimension  of surface (2 < D < 3) Default:
	      2.05

       nn      Number of intermediate images to produce Default: 0


SSEEEE AALLSSOO
       _r_._m_a_s_k

       _r_._s_u_r_f_._c_o_n_t_o_u_r

       _r_._s_u_r_f_._i_d_w

       _s_._s_u_r_f_._i_d_w

       _s_._s_u_r_f_._r_s_t

       _r_._s_u_r_f_._g_a_u_s_s

       _r_._s_u_r_f_._r_a_n_d_o_m

       _r_._s_u_r_f_._i_d_w_2

       _p_a_r_s_e_r

RREEFFEERREENNCCEE
       Saupe, D. (1988) Algorithms for random fractals, in Barns-
       ley 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

       ASSIST's home

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GRASS 5.0					r.surf.fractal(1)
