[GRASS-user] exporting map display

[Vincent Bain]

I might miss something : when I run the command I get this error :
ERROR: No graphics device selected. Use d.mon to select graphics device.

Is it necessary to first start a graphics monitor (which one ?) and how
is it possible to populate this display via the GUI layer manager (and
not commands like d.vect, d.rast...)

Sorry, I guess my issue is stupid!
Vincent.

Le mercredi 09 septembre 2015 à 12:27 -0400, Anna Petrášová a écrit :
> Hi Vincent,
> 
> 
> if I understand your use case correctly, d.to.rast should do what you
> want. It works in GUI. But maybe I am misunderstanding.
> 
> On Wed, Sep 9, 2015 at 9:52 AM, Vincent Bain <bain at toraval.fr> wrote:
>         Thanks you Anna,
>         
>         unfortunately I understand d.to.rast cannot handle the content
>         of the
>         gui default display frame, which is the only display that
>         allows me to
>         tweak transparency.
>         
>         My temporary fix was to :
>         -"set computational region from display extent" ;
>         -press the button "save display to graphic file", outputting
>         my
>         composition in a source.png file ;
>         -then write down a short shell script in this flavor :
>         
>         %------------
>         eval `g.region -g`
>         IFS=,
>         size=($(identify -format %w,%h source.png))
>         gdal_translate -gcp 0 0 $w $n -gcp ${size[0]} 0 $e $n -gcp
>         ${size[0]}
>         ${size[1]} $e $s source.png target.tif
>         gcps2wld.py target.tif>target.tfw
>         %------------
>         
>         This method is certainly not much accurate but it provides me
>         a fast
>         georeferenced snapshot of a map composition.
>         
>         
>         
>         Yours,
>         Vincent
>         
> 
>