[GRASS-dev] Error with r.to.vect- Solved?

António Rocha antonio.rocha at deimos.com.pt
Tue Mar 29 06:10:54 EDT 2011


Hello Markus
Thanks.
Just one final question: Is there a way to know which is the limit for 
vector? My idea is to check if raster, to be converted, is too big to be 
converted before I try to convert?
THanks
>
>
>
> Markus Neteler wrote:
>> Hi António
>> (cc Martin)
>>
>> you can get winGRASS 7 here:
>> http://wingrass.fsv.cvut.cz/grass70/
>>
>> but I dunno if LFS is enabled in that built. Maybe Martin
>> can tell us.
>>
>> cheers
>> Markus
>>
>> 2011/3/29 António Rocha <antonio.rocha at deimos.com.pt>:
>>  
>>> Hi Markus
>>>
>>> The problem is that I'm running in Windows and in GRASS6.4.0stable 
>>> release.
>>> So, there is no solution for Windows?
>>> Thanks
>>> Antonio
>>>
>>> Markus Neteler wrote:
>>>    
>>>> 2011/3/29 António Rocha <antonio.rocha at deimos.com.pt>:
>>>>
>>>>      
>>>>> Hello Markus
>>>>> Unfortunely, I get this error when I run other datasets. In this 
>>>>> case, a
>>>>> landCover with all CELLS and spatial resolution of 30. The problem is
>>>>> that
>>>>> North carolina sample is too small.
>>>>> r.to.vect -v input=FULL at PERMANENT output=FULL feature=area
>>>>> I get this:
>>>>> Default driver / database set to:
>>>>> driver: dbf
>>>>> database: $GISDBASE/$LOCATION_NAME/$MAPSET/dbf/
>>>>> Extracting areas...
>>>>> Building topology for vector map <FULL>...
>>>>> R4243000ERROR: G_realloc: unable to allocate 16976004 bytes at
>>>>> struct_alloc.c:133
>>>>>
>>>>>         
>>>> You mean that it is too big :)
>>>> The file in question is lib/vector/diglib/struct_alloc.c
>>>>
>>>> Please try GRASS 7 instead of GRASS 6 which offers large file support
>>>> for vector data (to some extent).
>>>>
>>>> You need to configure it with this options
>>>>  --enable-largefile      enable support for large files (LFS)
>>>>
>>>> and compile it. Or use the weekly Linux binary snapshot which
>>>> has LFS enabled.
>>>>
>>>> Markus
>>>>
>>>>
>>
>>
>>   
>
>



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