v.extract,v.reclass

[Susan Huse]

> 
> I'm looking for advice on how to selectively display selected areas of vector
> layers.  I tried using v.extract (a contrib, mind you) with a list of desired
> areas to include in a new vector map, but it dumped core.  I tried using
> v.reclass, but the remaining areas remained part of the output vector, and
> were simply untagged.  

Did you use the -d option?  That should "dissolve" all extra area
edges out.  I have had good luck with v.digit in recent releases
(though I don't know if it was JUST updated or not).

This is what I generally do and it has worked for me.  Good luck

> 
> I also was unable to find an approach that would use the facilities of p.map
> or ps.map.
> 
> I'd welcome a few suggestions on the matter.
> 
> greg
> 
> ******************************************************************************
> Greg Koerper                            Internet: greg at heart.cor.epa.gov
> ManTech Environmental Research Services Corp.  
> US EPA Environmental Research Lab	voice:	(503) 754-4490
> 200 SW 35th St., JSB                    fax:    (503) 754-4338
> Corvallis, OR   97333     
> ******************************************************************************
> 

-Sue Huse
REGIS
UC Berkeley