mapcalculator.sh(1)	      Grass User's Manual	   mapcalculator.sh(1)



NNAAMMEE
       mmaappccaallccuullaattoorr..sshh   - TCLTK-Frontend for r.mapcalc

SSYYNNOOPPSSIISS
       mmaappccaallccuullaattoorr..sshh   [[hheellpp==[[_h_e_l_p_,_m_a_n]]]]   [[eexxppeerrtt==_e_x_p_e_r_t]]	AA__MMAAPP==[[_m_a_p   ]]
       BB__MMAAPP==[[_m_a_p]]......

DDEESSCCRRIIPPTTIIOONN
       mmaappccaallccuullaattoorr..sshh is a bash-script  usally called via  mmaappccaallccuullaattoorr  in
       TCLTKGRASS.  It creates a r.mapcalc call from the parameters you choose
       in mapcalculator. If you want to use mapcalc  on  the  commandline  you
       should use the original r.mapcalc command.

       In  TTCCLLTTKKGGRRAASSSS	you  can  choose up to six maps  [_e_n_t_r_i_e_s _A _- _F] to be
       included in the calculation. Then you have to enter  a  formula	and  a
       name  for the resulting raster map. You won't receive a warning, if you
       choose the name of an allready existing raster map, but you can protect
       your files from overwriting by activating the appropriate checkbox.

       You can create a calculation formula in the field formula like this:
       _A_+_C or (more complex:) _e_x_p_(_A_+_C_)_+_(_B_-_2_)_*_7_. A, B, C, etc. are your choosen
       raster maps. You must not insert the output file:


       RRiigghhtt:: _A_+_B

       WWrroonngg::  _n_e_w_f_i_l_e _= _A_+ _B Use no blanks! Blanks are inserted by the script
       to devide the map names from the rest of the formula.


       The  script won't check the syntax or logic of the formula and you will
       only receive the error  messages  from  r.mapcalc,  if	anything  went
       wrong.  For details on creating a formula see the _r_._m_a_p_c_a_l_c manual page
       (man r.mapcalc).

BBUUGGSS
       It is not possible to choose  maps  from  different  mapsets  with  the
       _r_a_s_t_e_r button. But you can choose maps from different mapsets by enter-
       ing the name  _m_a_p_@_m_a_p_s_e_t in any of the map fields  _[_A_-_E_]_.


       You may have difficulties to calculate formulas	containing   _n_e_i_g_h_b_o_r_-
       _h_o_o_d  modifier.	The  only way to use  _n_e_i_g_h_b_o_r_h_o_o_d modifier is entring
       them directly  into  the  formula  field:  A+B*map_with_modifier  where
       map_with_modifier  is the name of your map. The name of your map should
       not contain any uppercase _A _- _F, because they will  be  interpreted  as
       raster map entries. Don't forget to mask the brackets with backslashes,
       or you will receive errormessages form  TTCCLLTTKKGGRRAASSSS..

SSEEEE AALLSSOO
       r.mapcalc

AAUUTTHHOORR
       RR.. BBrruunnzzeemmaa



       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_2_/_0_3_/_0_1 _0_0_:_0_8_:_3_1 _$



GRASS 5.0						   mapcalculator.sh(1)
