[GRASS-user] v.extract - sqlite driver problem

[M S]

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 <hamish_b at yahoo.com> wrote:
> 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 > 999999, null(), map)"
>
>
> or
>
> r.reclass
>  999999 thru 9999999 = NULL
>  * = *
>
>
> and finally "r.null setnull=bad_value" may be the simplest.
>
> ... or d.rast.edit ...
>
>
>
> Hamish
>
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>
>
>