[GRASS-user] r.sun crashes on Windows XP SP3

[Laszlo Nagy]

HELLO THERE,

TWO QUESTIONS:

(1) AS D.ZOOM DOESN'T WORK IN WINDOWS, WHAT IS THE WAY TO EXTRACT 
SUBSETS FROM RASTER MAPS IN THE ABSENCE OF OTHER FILES TO DEFINE EXTENT?

(2) THERE DOESN'T SEEM TO BE A FONT TYPE THAT WOULD WORK IN V.LABEL.SA 
TO GENERATE LABELS FROM A VECTOR FILE'S ATTRIBUTE TABLE. ANY IDEAS PLEASE?

MANY THANKS,

LASZLO

Hamish wrote:
> LASZLO NAGY wrote:
>   
>> Have installed GRASS 6.4 to explore it in a Win XP3
>> environment. One of my main interests was r.sun. Every time
>> I try to run the module after specifying the parameters in
>> the GUI it generates an error and crashes - unfortunately,
>> error reporter does not allow copy and paste details of
>> report.
>>     
>
> was it a pop-up box with a [Ok] button?
> or was it in the GUI's module output tab? (highlight then right
> click to copy)
>
> as a last resort you could take and post a screenshot of it
> (Alt-PrtScrn, then paste into Paint)
>
> what was the exact command line used to run r.sun?
>
>
>   
>> Is there a known issue relating to windows?
>>     
>
> Not that I know of. It works for me using the sample Spearfish
> dataset:
>
> g.region -d
> r.sun -s elevin=elevation.dem day=355 beam=elev.355.beam --verbose
>
>
> can you get it to fail with one of the standard sample datasets?
> (NC or spearfish data)
>
>  
>   
>> Have been trying to import an esri binary grid file (.adf).
>> The esri file is unprojected, i.e. I can import it only as a
>> x,y.
>>     
>
> is it actually unprojected, or just that the file lacks
> projection metadata so it won't work automatically? ie do you
> know what the projection should be? if so, create a new location
> using that projection using the location wizard, and then import
> with r.in.gdal's projection-check override flag.
>
> r.sun may not like XY locations, it needs to know the latitude
> in order to place the sun correctly in the sky. see the lat=
> and latin= options if you must run it from XY.
>
>
>   
>> I gather that there is no way to reproject from xy into
>> a projection system.
>>     
>
> sure there is. if the projection is totally unknown you can use
> the Georectifier in the File menu. On Mac and Linux there is also
> the option to use the old i.points module to set that up, but
> that won't work on MS Windows (unless you use the Cygwin build).
>
> of course you have to give it some hints about how to do the
> transform.
>
>   
>> The imported file only displays in part.
>>     
>
> run g.region to set the computational region settings to match
> the raster map?
>
>   
>> Is there a size limit (the file is c. 80k col x 40k row).
>>     
>
> large file support (>2gb) currently does not work in WinGrass.
> see  https://trac.osgeo.org/grass/wiki/CompileOnWindows#Errata
> (but works fine for Mac and Linux)
>
> a raster map of that size is probably exceeding that limit.
> can you break it up into smaller chunks?
>
>
>   
>> Haven't been able to find out how to display a vector
>> file that consists of characters as codes that correpond to
>> a file of polygons - only 'centroids' show.
>>     
>
> I don't understand that, could you explain it more?
>
>
>
> Hamish
>
>
>
>       
>
>