[GRASS-user] Question about databases and vector files...

Michael Perdue michael_perdue at yahoo.ca
Fri Apr 27 11:34:57 EDT 2007


PS... both were built with LFS.

Mike

On 27-Apr-07, at 9:28 AM, Michael Perdue wrote:

> On both of my 32 bit machines (Mac OSX 10.4.9 and SuSE 10.1) I can  
> get about 60 - 70 million points imported before it conks (I don't  
> recall the exact message but it was something about an overflow...  
> negative file offset). The coord file is right around 2GB when the  
> error message is received. I was using the -z flag in v.in.ascii so  
> I imagine one might be able to get significantly more in without  
> the 3rd dimension.
>
> cheers,
>
> Mike
>
>
> On 27-Apr-07, at 5:59 AM, Markus Neteler wrote:
>
>> Jonathan Greenberg wrote on 04/26/2007 07:31 PM:
>>> As I said -- lots of newbie questions here (I'm a raster man,  
>>> just now
>>> beginning to learn the intricacies of vector files beyond "hey,  
>>> it's a bunch
>>> of points") -- is there any inherent size limitation for vector  
>>> files (the
>>> geometry portion) in grass?
>>
>> As far as I remember, Helena imported up to 500 million points - but
>> without topology (via
>> v.in.ascii -b ...). As Glynn said, the 2GiB limit is one problem  
>> unless
>> LFS is working for
>> vector data, too.
>>>  E.g. should I be fine with the points I've
>>> described if I use the pg to deal with the database portion, as  
>>> opposed to
>>> the standard dbf driver?
>>>
>> Maybe you can give it a try and report back?
>>
>> Markus
>>
>> ------------------
>> ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler
>> ITC -> since 1 March 2007 Fondazione Bruno Kessler
>> ------------------
>>
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>




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