s.delaunay(1)		      Grass User's Manual		 s.delaunay(1)



NNAAMMEE
       ss..ddeellaauunnaayy  -  Module  to create a vector delaunay triangulation from a
       sites file.

SSYYNNOOPPSSIISS
       ss..ddeellaauunnaayy [[--aaqqll]] ssiitteess_=_n_a_m_e vveecctt_=_n_a_m_e

DDEESSCCRRIIPPTTIIOONN
       _s_._d_e_l_a_u_n_a_y uses an existing sites list (sitesname) to do Delaunay  tri-
       angulation, putting the results in a binary vector file (vectname).

   FFllaagg::
       --aa     Use all sites (do not limit to current region)

       --qq     Quiet

       --ll     Output triangulation as a graph, not areas


   PPaarraammeetteerrss::
       ssiitteess  Sites file to process

       vveecctt   Vector map layer to contain delaunay triangulation.

       s.delaunay  can be run either non-interactively or interactively.   The
       program will be run non-interactively if the user specifies the name of
       an existing site list file and a name for a vect file, using the form


		     s.delaunay [-aql] sitesname vectname

       where  sitesname is the name of an existing site list file and vectname
       is the name of vector output file.  Alternately, the  user  can	simply
       type  _s_._d_e_l_a_u_n_a_y   on  the command line, without program arguments.  In
       this case, the user will be prompted for  parameter  values  using  the
       standard  GRASS	parser	interface  described  in  the manual entry for
       parser.	In either case, v.support should be run on the output.

RREEFFEERREENNCCEE
       Steve  J.  Fortune,  (1987).   A  Sweepline  Algorithm for Voronoi Dia-
       grams, Algorithmica 2, 153-174.

SSEEEE AALLSSOO
       _v_._a_u_t_o_c_o_r_r_, _v_._s_p_a_g_, _v_._s_u_p_p_o_r_t_, _s_._h_u_l_l_, _s_._v_o_r_o_n_o_i_, _s_._s_w_e_e_p

AAUUTTHHOORR
       James Darrell McCauley,

       GRASS 5 update, improvements: Andrea Aime, Modena, Italy

       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_2_/_0_1_/_2_5 _0_5_:_4_5_:_3_5 _$



GRASS 5.0							 s.delaunay(1)
