[GRASS-dev] [bug #3877] (grass) r.to.vect, v.in.ascii use too much memory for millions of points

[Markus Neteler]

Helena Mitasova wrote on 07/07/2006 04:27 PM:
> On Jul 7, 2006, at 7:48 AM, Markus Neteler wrote:
>> Hamish wrote on 07/07/2006 10:19 AM:
>>> I was never very clear on this, but have an idea that topology is
>>> meaningless for data which is only points (no tree; only bounding box
>>> matters?). If so, the (correct) solution becomes much easier.
>>>
>> ... nor me.
>> *If* topology is meaningless for point data, then we could add a test
>> in Vect_built() to
>> - check if only points are present in the map,
>> - if so, skip the topology creation.
>
> this is not generaly a good solution - I will get back to this when I
> have more time -
> it is good to read Radims document about what to do with the vector
> format
> first before further engaging in this discussion - Maciek please read
> it -
> that will give you a better idea what is going on.

This is certainly a good idea. May I suggest that someone picks all the
pieces from the various (Radim et al.) emails and creates a Wiki page out
of that?

thanks
 Markus