[GRASS-windows] Re: [GRASS-user] Xming as X server for winGRASS?

[Luigi Ponti]

Paul Kelly wrote:
> On Thu, 13 Mar 2008, Luigi Ponti wrote:
>
> [...]
>> This works fine in my Cygwin/grass6.2.2 installation, although the 
>> GRASS_PNG_READ variable does not seem to be available in grass6.2 
>> http://grass.ibiblio.org/gdp/html_grass62/pngdriver.html so the 
>> overlay thing suggested by Paul wouldn't work.
>
> In that case you might be able to use the g.pnmcomp module to compose 
> the different PNG files together into one image.
Yes, thanks for the tip -- I didn't think about that option.
>
>> Trying the same with native winGRSSS 6.3.0 RC5 is less of a success: 
>> (1) no way to set environment variables via the GUI Output - GIS.m 
>> window; (2) not able to start GRASS via cmd.exe as suggested at
>> http://grass.gdf-hannover.de/wiki/WinGRASS_Current_Status
>>
>> by typing the following at the cmd.exe prompt:
>>
>>   C:\grass63RC5\bin\grass63.bat -text
>>
>> I get the output below:
>>
>>   Welcome to GRASS 6.3.0RC5 (2008)
>>
>>   GRASS homepage:                          http://grass.itc.it/
>>   This version running thru:               Windows Command Shell 
>> (cmd.exe)
>>   When ready to quit enter:                exit
>>   Help is available with the command:      g.manual -i
>>   See the licence terms with:              g.version -c
>>
>>   "cmd.exe" non è riconosciuto come comando interno o esterno,
>>    un programma eseguibile o un file batch.
>>
>> (the Italian error message would sound more or less like: "cmd.exe" 
>> is not recognized as an internal or external command, an executable 
>> program or a batch file.)
>
> That's very strange. Is it possible you have accidentally modified 
> your PATH environment variable so that it no longer contains the path 
> to cmd.exe? What does
> echo %PATH%
> say? (Run straight after you get the error message above).
>
> Also, in case its useful information, did you compile yourself or 
> which binary version did you use (download location?)
>
> Paul
Paul:
echo %PATH% says:

    C:\msys\1.0\bin;C:\Perl\bin;

which I have set in the grass63.bat file. When I type cmd.exe at the 
command prompt or just put only 'cmd.exe' inside a cmd.bat file, the 
Windows Shell starts fine. Even adding '%windir%\system32\cmd.exe' to 
PATH environmental variable leaves the error message unchanged.

grass-6.3.0RC5 21-Feb-2008 downloaded from 
http://geog-pc40.ulb.ac.be/grass/wingrass/

Glynn:
I am using Windows XP [Version 5.1.2600]. Changing the only reference to 
cmd.exe in init.bat to %COMSPEC% eliminates the error message. However, 
when I try to render a raster via Paul's command sequence, the PNG 
driver works fine but it complains about unknown png file type and no 
output.png file is written:

    GRASS 6.3.0RC5 (UTM32):C:\cygwin\home\luigi >d.rast sample_raster
    PNG: GRASS_TRUECOLOR status: TRUE
    PNG: collecting to file: c:\output.png ,
    GRASS_WIDTH=640, GRASS_HEIGHT=480
     100%
    ERROR: write_image: unknown file type: png

Thanks and regards,

Luigi

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