<bg> is not a valid parameter

[George Chou]

Malcolm,
Thanks for replying.  However, I did find that "d.rast help" and "g.manual"
produce different parameter list.  When there is conflict between "Help"
and "Manual", we test the program by executing the program with different
parameter settings.  For "d.rast", our test result shows that "d.rast help"
matches the command.  My preference is to have a choice for the background
color.

Here are the messages I got from executing "d.rast help" and "g.version":

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7 /home/chou> d.rast help

Usage:
 d.rast [-oi] map=name [catlist=cat[-cat][,cat[-cat],...]]
   [vallist=val[-val][,val[-val],...]] [bg=color]

Flags:
  -o   Overlay (non-null values only)
  -i   Invert catlist

Parameters:
      map   Raster map to be displayed
  catlist   List of categories to be displayed
  vallist   List of values to be displayed
       bg   Background color (for null)
            options: white,black,red,green,blue,yellow,magenta,cyan,aqua,
                     grey,gray,orange,brown,purple,violet,indigo
8 /home/chou> g.version
GRASS 4.1 (Spring 1993) Update Package 5, January 1995       

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----------
> From: Malcolm Williamson <malcolm at cast.uark.edu>
> To: grassu at cecer.army.mil
> Subject: Re: <bg> is not a valid parameter
> Date: Thursday, September 25, 1997 8:12 AM
> 
> The GRASS Version 4.1 User's Reference Manual (hardcopy, Spring 1993 does

> not list "bg" as a parameter for d.rast (in fact, _none_ of the "d." 
> commands list bg as a parameter in that manual). What are you guys 
> testing this on??
> 	-Malcolm
> 
> On Wed, 24 Sep 1997, George Chou wrote:
> 
> > Hi,
> > A GRASS-XMI user reported that he could not display a raster map while
> > running GRASS4.1.5.  It was found that the parameter list for d.rast
has
> > been changed.  When the following command was executed
> > 
> > 	d.rast map=elevation bg=black
> > 
> > an error message said
> > 
> > 	<bg> is not a valid parameter
> > 
> > I remember <bg> used to be an optional parameter in GRASS4.1.  Could
> > someone explain the reason for the change?  Thanks.
> > 
> > The version 1.2.1 release of GRASS-XMI for Solaris running on SPARC
will 
> > be available for downloading (http://www.gpz.com) in ten days.  The new

> > release will support d.rast for both GRASS4.1 and 4.1.5.  It will also
> > include Map Calculator and a few other modules.
> > 
> > Regards,
> > George Chou
> > gchou at gpz.com
> > (650) 949-3708
> >