[GRASS-dev] v.overaly - slow

[jachym.cepicky at gmail.com]

hi hamish,

thanks for the hint with v.select

the data was generated in GRASS, so v.in.ogr would not help

thanks

jachym

2008/5/24, Hamish <hamish_b at yahoo.com>:
> Jachym:
>> so, my question: is there such script already (maybe
>> something in GDAL/OGR package, which I missed)? Isn't there
>> any big mistake in my script?
>
>
> to speed it up use v.in.region+v.select before v.overlay, so expensive
> overlay is only performed on relevant features.
>
> during import you can replicate that with v.in.ogr's -r or spatial= options.
>
>
>
> Hamish
>
>
>
>
>
>
>
>


-- 
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub