[GRASSLIST:3777] Re: v.reclass in GRASS 57

[Radim Blazek]

On Monday 28 June 2004 21:32, Pierre GM wrote:
> > > 1. the boundaries are not dissolved with v.reclass,...
> >
> > No,
> > v.extract -d list=1-79 new=-1
> > should do that in one step.
>
> Mmh: Radim, could you please explain me the difference bewteen new=-1,
> new=1 and new=0 in v.extract ? I understand from the doc that new=-1 keeps
> the old category, but doesn't copy the attribute table (where's the point ?
> I have to reset the connection to another dbf manually ?),

The point is that there was a bug in v.extract, now (cvs) it should copy 
the table for new=-1.

> that new=1 set
> the new category to 1, without copying the table (how can I get the new
> table, then ?), 

The new table? And what should be in that table, all features have the 
same category, do you want a table with one row and one column?

> and that new=0 keeps the old category while copying the table

The same bug, it does not make sense to copy the table with new=0.

Radim