[QGIS-trac] Re: [Quantum GIS] #2577: r.mapcalculator: variable number of input maps

Quantum GIS qgis at qgis.org
Sun Mar 21 14:43:45 EDT 2010


#2577: r.mapcalculator: variable number of input maps
-------------------------------------+--------------------------------------
        Reporter:  pcav              |         Owner:  rugginoso    
            Type:  enhancement       |        Status:  new          
        Priority:  minor: annoyance  |     Milestone:  Version 1.5.0
       Component:  GRASS             |       Version:  HEAD         
      Resolution:                    |      Keywords:               
Platform_version:                    |      Platform:  All          
        Must_fix:  No                |   Status_info:  0            
-------------------------------------+--------------------------------------
Comment (by neteler):

 The reason for the different behaviour is that the command style is
 different:

 {{{
  r.mapcalculator [-eo] [amap=string] [bmap=string] [cmap=string]
    [dmap=string] [emap=string] [fmap=string] formula=string
    outfile=string ...
 }}}

 but

 {{{
 r.buffer [-zq] input=name output=name distances=value[,value,...] ...
 }}}

 The distances parameter is a 1..n list while in r.mapcalculator the
 parameters are separate.

 Suggestion: modify r.mapcalculator in QGIS to require
 input=string[,string,...]
 since this cannot be changed in the GRASS 6 series for compatibility.

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/2577#comment:1>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats


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