[GRASS-user] kml topology... ?

[Dylan Beaudette]

On Tuesday 26 February 2008, Nikos Alexandris wrote:
> Continuing my small quest with kml files... and bombing you with simple
> questions ;-p
>
> are kml files carrying topology information besides coordinates?

I doubt it. As far as I know they are just "simple features".

>
> I needed to manually correct a kml file which looked very bad after
> importing in GRASS (with -c  otherwise it was not useful!)

i am not surprised that a KML file resulted in a topologically broken file. 
These days everyone and their brother are creating KML via all sorts of 
methods-- most of which have little notion/concern for 
topological-correctness. 

> Automatic cleaning is really not useful even after trying to feed with
> logical thresholds the various tools.

Try opening the file with v.digit and look for oddities.

> Cheers,
>
> Nikos

Dylan

-- 
Dylan Beaudette
Soil Resource Laboratory
http://casoilresource.lawr.ucdavis.edu/
University of California at Davis
530.754.7341