v.bubble(1)		      Grass User's Manual		   v.bubble(1)



NNAAMMEE
       vv..bbuubbbbllee  - Creates a vector file which consists of bubble(s)  for each
       point in a site-file and with a size relative to the z  value  of  that
       point.
       (GRASS Vector Program)

SSYYNNOOPPSSIISS
       vv..bbuubbbbllee
       vv..bbuubbbbllee hheellpp
       vv..bbuubbbbllee [ --ss] [[rraaddiiuuss==_v_a_l_u_e_] ssiitteeffiillee==_n_a_m_e oouuttppuutt==_n_a_m_e ffiieelldd==_v_a_l_u_e



DDEESSCCRRIIPPTTIIOONN
       "v.bubble" will create "polygon" circles or bubbles  around points read
       from an existing "site_lists" file.  The "site_lists"  points  will  be
       the  centers  for  those bubbles with one bubble created per point. The
       size of the bubble is relative to the z value (or "height"  attribute")
       at  that  point. The maximum z value corresponds to a size of "radius".
       The "polygon" bubbles will be written to a binary  vector  file.   Each
       "polygon" bubble will have 361 points with each point on the circumfer-
       ence of the bubble representing 1 degree of arc.



CCOOMMMMAANNDD LLIINNEE OOPPTTIIOONNSS
PPaarraammeetteerrss
       rraaddiiuuss Maximum radius corresponding with the maximum  z	value  in  the
	      "site-file".   One  Unit	of radius corresponds with one unit of
	      the map.
	      default: 1.0



       ssiitteeffiillee
	      GRASS site_lists file (input).

       oouuttppuutt Vector file to be created (output).



       ffiieelldd  Attribute field number to use for operation


       The field number specifies the attribute field  in  sites  list	(point
       map)  which shall be used. This is useful in case of multiple attribute
       sites maps.

FFllaaggss
       _-_s     Automatically run "v.support" on newly created vector file.

NNOOTTEESS
       The programm is based on v.circle

SSEEEE AALLSSOO
       s.buffer, v.circle

AAUUTTHHOORR
       Job Spijker (spijker@geo.uu.nl) , Utrecht University/Department of Geo-
       chemistry

       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_3_/_0_7_/_0_4 _0_8_:_3_5_:_3_4 _$



GRASS 5.0							   v.bubble(1)
