Perfect. Setting the bad point null, and exporting without table or
topology (3D) proved to be the fastest solution. Thanks for the
suggestion.
Much thanks,
Mark
On Fri, Feb 5, 2010 at 2:27 AM, Hamish wrote:
> Mark:
>> I have a bunch of points (4+ million) with one outlier that needs
>> remov
Mark:
> I have a bunch of points (4+ million) with one outlier that needs
> removed.
perhaps use r.mapcalc or r.reclass to filter out the bad point?
r.mapcalc "clean = if(map > 99, null(), map)"
or
r.reclass
99 thru 999 = NULL
* = *
and finally "r.null setnull=bad_value" may
Mark:
> I get the following error upon writing attributes:
>
> Writing attributes...
> Cannot allocate memory: can't create fork
out of memory?
r.to.vect as points can create a lot of points. if you will make > 3 million
or so try the -z flag and/or the -b flag.
the r.in.xyz help page discusse
I have a bunch of points (4+ million) with one outlier that needs
removed. I created a vector points file by using r.to.vect to create
a vector points file and associated table in sqlite.
When I run v.extract (v.extract -r input=points...@permanent
output=pointsfixed type=point layer=1 list=38843
