[GRASS-dev] Re: [GRASS-user] invoking d.vect and d.rast from CLI

[Michael Barton]

Gism now uses GRASS_RENDER_IMMEDIATE mode. This causes any d.* command to
send its output to a PPM file rather than to the d.mon display driver. This
is only invoked just before a d.* command is issued and turned off
afterwards. So d.mon start=gism is no longer used. This leaves the display
driver free for whatever you want to use it for, but you'll  have to set
d.mon manually.

In any case, you couldn't just set d.mon start=gism, type a display command,
and have the map display in the canvas. This is a TclTk canvas, whose
display is controlled by TclTk scripts, not GRASS commands. It is not a
simple display window like an xterminal.

Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton



> From: "Patton, Eric" <epatton at nrcan.gc.ca>
> Date: Thu, 31 Aug 2006 15:15:44 -0300
> To: "'grassuser at grass.itc.it'" <grassuser at grass.itc.it>
> Cc: "'grass-dev at grass.itc.it'" <grass-dev at grass.itc.it>
> Subject: [GRASS-user] invoking d.vect and d.rast from CLI
> 
> I'm having trouble getting d.rast and d.vect working on the command line.
> Here's a step-by-step to reproduce using Spearfish:
> 
> After initial Grass 6.3 startup finishes:
> 
>> d.mon -L
> name            description                    status
> ----            -----------                    ------
> PNG             Create PNG Map                 not running
> png1            Create PNG Map                 not running
> png2            Create PNG Map                 not running
> png3            Create PNG Map                 not running
> png4            Create PNG Map                 not running
> png5            Create PNG Map                 not running
> png6            Create PNG Map                 not running
> png7            Create PNG Map                 not running
> gism            Create PNG Map for gis.m       not running
> x0              X-windows graphics display     not running
> x1              X-windows graphics display     not running
> x2              X-windows graphics display     not running
> x3              X-windows graphics display     not running
> x4              X-windows graphics display     not running
> x5              X-windows graphics display     not running
> x6              X-windows graphics display     not running
> x7              X-windows graphics display     not running
> 
> # Shouldn't gism be shown as running here?
> 
>> d.mon start=gism
> PNG: GRASS_TRUECOLOR status: FALSE
> PNG: collecting to file: map.png,
>      GRASS_WIDTH=640, GRASS_HEIGHT=480
> Graphics driver [gism] started
> 
> ~ >d.mon -L
> name            description                    status
> ----            -----------                    ------
> PNG             Create PNG Map                 not running
> png1            Create PNG Map                 not running
> png2            Create PNG Map                 not running
> png3            Create PNG Map                 not running
> png4            Create PNG Map                 not running
> png5            Create PNG Map                 not running
> png6            Create PNG Map                 not running
> png7            Create PNG Map                 not running
> gism            Create PNG Map for gis.m       running (selected)
> x0              X-windows graphics display     not running
> x1              X-windows graphics display     not running
> x2              X-windows graphics display     not running
> x3              X-windows graphics display     not running
> x4              X-windows graphics display     not running
> x5              X-windows graphics display     not running
> x6              X-windows graphics display     not running
> x7              X-windows graphics display     not running
> 
> # I seem to remember before that gism was shown as being selected
> immediately
> # upon starting Grass...
> 
> ~ >g.region rast=elevation.10m
> ~ >d.rast -o map=elevation.10m
>  100%
> 
> # Nothing draws in the gis.m map display!
> # Let's try a vector instead...
> 
> ~ >g.region vect=soils
> ~ >d.vect soils
> 
> Again, nothing displays.
> 
> Any ideas on what's going on here?
> 
> ~ Eric.
> 
> 
> 
> 
> 
>