r.out.arc(1)	       Grass User's Manual	     r.out.arc(1)



NNAAMMEE
       rr..oouutt..aarrcc  - Converts a raster map layer into an ESRI ARC-
       GRID file.
       _(_G_R_A_S_S _R_a_s_t_e_r _D_a_t_a _E_x_p_o_r_t _P_r_o_g_r_a_m_)

SSYYNNOOPPSSIISS
       rr..oouutt..aarrcc
       rr..oouutt..aarrcc hheellpp
       rr..oouutt..aarrcc [--hh]  [--11] iinnppuutt==_n_a_m_e oouuttppuutt==_n_a_m_e [ddpp==_v_a_l_u_e]

DDEESSCCRRIIPPTTIIOONN
       _r_._o_u_t_._a_r_c  converts  a  user-specified  raster  map  layer
       (iinnppuutt==_n_a_m_e)  into  an  ESRI  ARC-GRID  ascii  file  (oouutt--
       ppuutt==_n_a_m_e) suitable for export to other  computer  systems.
       The dp=_v_a_l_u_e option (where _v_a_l_u_e is a number of the user's
       choice) can be used to request that numbers after  decimal
       points are limited.  However, to use this, the user should
       know the maximum number of digits that will occur  in  the
       output file.  The user can find the maximum number of dig-
       its occurring in the  output  file  by  running	_r_._o_u_t_._a_r_c
       without the ddpp==_v_a_l_u_e option.


       The  GRASS  program  _r_._i_n_._a_r_c  can  be used to perform the
       reverse function, converting an ESRI ARC-GRID  ascii  file
       in  suitable format to GRASS raster file format. The order
       of cell values in file is from lower left to  upper  right
       (reverse to GRASS).

OOPPTTIIOONNSS
   FFllaaggss::
       --hh     Suppress printing of header information.


       --11     List one entry per line.


   PPaarraammeetteerrss::
       iinnppuutt==_n_a_m_e
	      Name of an existing raster map layer.

       oouuttppuutt Name  of	an  output  ARC-GID map (use output=- for
	      stdout)

       ddpp==_v_a_l_u_e
	      The minimum number of decimals  (per  cell)  to  be
	      printed.

       _r_._o_u_t_._a_r_c  can be run either non-interactively or interac-
       tively.	The program will be run non-interactively if  the
       user specifies the name of a raster map layer and (option-
       ally)  a  value	for  _d_p,   using   the	 form	rr..oouutt..aarrcc
       iinnppuutt==_i_n_n_a_m_e oouuttppuutt==_o_u_t_n_a_m_e [ddpp==_v_a_l_u_e]

       where  _i_n_n_a_m_e is the name of a raster map layer to be con-
       verted to ARC-GRID format, _o_u_t_n_a_m_e is the name of a raster
       map  layer to be exported, and _v_a_l_u_e is the minimum number
       of digits (per cell) to be printed to  output.	The  user
       can  also  the  --hh  option  to suppress the output of file
       header information.


       Alternately, the user can simply  type  rr..oouutt..aarrcc  on  the
       command	line,  without	program arguments.  In this case,
       the user will be prompted for parameter values  using  the
       standard GRASS _p_a_r_s_e_r interface.

NNOOTTEESS
       The  output  from  _r_._o_u_t_._a_r_c  may be placed into a file by
       using the UNIX  redirection  mechanism;	 e.g.:	rr..oouutt..aarrcc
       iinnppuutt==soils oouuttppuutt==-- > out.grd

       The output file _o_u_t_._g_r_d can then be copied onto a CDROM or
       floppy disk for export purposes.

SSEEEE AALLSSOO
       _r_._i_n_._a_r_c
       _p_a_r_s_e_r

AAUUTTHHOORR
       Markus Neteler, University of Hannover, Germany,

       based on r.out.ascii from

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

       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_2_/_0_2_/_2_5 _0_8_:_5_6_:_2_5 _$



GRASS 5.0					     r.out.arc(1)
