r.resample(1)	       Grass User's Manual	    r.resample(1)



NNAAMMEE
       rr..rreessaammppllee  - GRASS raster map layer data resampling capa-
       bility.
       _(_G_R_A_S_S _R_a_s_t_e_r _P_r_o_g_r_a_m_)

SSYYNNOOPPSSIISS
       rr..rreessaammppllee
       rr..rreessaammppllee hheellpp
       rr..rreessaammppllee [--qq] iinnppuutt==_n_a_m_e oouuttppuutt==_n_a_m_e

DDEESSCCRRIIPPTTIIOONN
       _r_._r_e_s_a_m_p_l_e resamples the data values in	a  user-specified
       raster  input  map layer _n_a_m_e (bounded by the current geo-
       graphic region and masked by the current mask),	and  pro-
       duces  a  new  raster output map layer _n_a_m_e containing the
       results of the resampling.  The category values in the new
       raster  output  map layer will be the same as those in the
       original, except that the resolution and extent of the new
       raster  output  map  layer will match those of the current
       geographic region settings (see _g_._r_e_g_i_o_n).


       The program will be  run  non-interactively  if	the  user
       specifies program arguments on the command line, using the
       form rr..rreessaammppllee [--qq] iinnppuutt==_n_a_m_e oouuttppuutt==_n_a_m_e

       where the input _n_a_m_e is the name of the raster  map  layer
       whose  data  are  to  be resampled, the output _n_a_m_e is the
       name of the raster map layer to store program output,  and
       the  --qq	option,  if  present, directs that _r_._r_e_s_a_m_p_l_e run
       quietly (supressing the printing of  program  messages  to
       standard output).


       Alternately,  the  user	can simply type rr..rreessaammppllee on the
       command line, without program arguments.   In  this  case,
       the  user  will	be  prompted for needed inputs and option
       choices using the standard GRASS _p_a_r_s_e_r interface.

NNOOTTEESS
       The method by which resampling is  conducted  is  "nearest
       neighbor"  (see	_r_._n_e_i_g_h_b_o_r_s).	The  resulting raster map
       layer will have the same resolution as the  resolution  of
       the current geographic region (set using _g_._r_e_g_i_o_n).


       The  resulting  raster  map  layer may be identical to the
       original raster map layer.  The	_r_._r_e_s_a_m_p_l_e  program  will
       copy  the color table and history file associated with the
       original raster map layer for  the  resulting  raster  map
       layer  and will create a modified category file which con-
       tains description of only those categories which appear in
       resampled file.


       When  the  user	resamples  a  GRASS  _r_e_c_l_a_s_s file, a true
       raster file is created by _r_._r_e_s_a_m_p_l_e.

SSEEEE AALLSSOO
       _g_._r_e_g_i_o_n

       _r_._m_a_p_c_a_l_c

       _r_._m_a_s_k

       _r_._m_f_i_l_t_e_r

       _r_._n_e_i_g_h_b_o_r_s

       _r_._r_e_s_c_a_l_e

       _p_a_r_s_e_r


AAUUTTHHOORR
       Michael	 Shapiro,   U.S.Army   Construction   Engineering
       Research Laboratory

       _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.resample(1)
