[GRASS-user] wxpython gui: d.vect.thematic raises error

[Michael Barton]

On Feb 25, 2008, at 4:14 AM, grass-user-request at lists.osgeo.org wrote:

> Date: Mon, 25 Feb 2008 01:24:39 +0100
> From: "G. Allegri" <giohappy at gmail.com>
> Subject: [GRASS-user] wxpython gui: d.vect.thematic raises error
> To: grassuser <grass-user at lists.osgeo.org>
> Message-ID:
> 	<e12429640802241624i15de3c42u50c6297de6e35212 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Another problem with the python GUI.
> I tried to create a thematic layer with the following command:
>
> d.vect.thematic map=topsoil_completo at tesi type=point column=Ece
> themetype=graduated_points themecalc=interval colorscheme=blue-red --q
>
> It raises an wxpython error window with this:
>
> "Execution failed: 'd.vect.thematic map=topsoil_completo at tesi
> type=point column=Ece themetype=graduated_points themecalc=interval
> colorscheme=blue-red --q' "
>
> while in the Grass shell appears the following track:
>
> GRASS_INFO_ERROR(26517,1): *** You must open a display monitor ***
>
> Sometimes this thematic map appears displayed, but not correctly (just
> a subset of the points, with the same size), sometimes this exception
> appear.
>
> Is it something with my wxpython again?

Again, could you please describe the context in which you are running  
this?

Are you trying to do this from the command line or adding a layer to  
the layer manager?

If you are adding this to the layer manager, the display should be  
handled automatically. However, if you are trying to run this from  
the command line, you must open an x monitor or specify another  
display driver yourself.

Also, it would be helpful to know what version you are running, since  
there have been recent updates to both wxPython GUI and to  
d.vect.thematic.

Overall, you should normally tell us basic information about your  
system, GRASS version, and for the GUI, the context you are running a  
command.

Michael