[GRASS-user] v.select relate

Martin Landa landa.martin at gmail.com
Thu Aug 13 16:48:03 EDT 2009


Hi,

2009/8/12 achim <ak7 at jupiter.uni-freiburg.de>:
> does anyone know, how the operator relate is meant in v.select (grass6.5)?
>
> Only explanation in module description is:
> "relate - feature A is spatially related to feature B"

It checks if elements in the DE-9IM intersection matrix for the two
features match the elements in 'relate' option.

See e.g.

http://www.postgis.org/documentation/manual-svn/ST_Relate.html

> And a parameter <relate> is required, which isn't in description too.

The documentation needs to be improved... Feel free to help with that.

Martin

-- 
Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa


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