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 interme-
       diate  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 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-Ver-
       lag.  jwo@le.ac.uk

       ASSIST's home

       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_2_/_0_1_/_2_5 _0_5_:_4_5_:_3_4 _$



GRASS 5.0						     r.surf.fractal(1)
