[GRASS5] contradiction for v.overlay

[Markus Neteler]

On Mon, Nov 15, 2004 at 05:40:10PM +0100, Otto Dassau wrote:
> Hi, 
> 
> there is a contradiction between the manual and the g57 tutorial for v.overlay:
> 
> a) v.overlay -help:
> 
> operator:
>          and : also known as 'intersection' in GIS
>          or  : also known as 'union' in GIS (only for atype=area)
> 	 ...
> 
> b) in the tutorial it says the opposite: 
> 
> Vector union (AND):
> v.overlay ainput=polbnda_germany binput=clipmap output=clipmap_union operator=and -t
> 
> Vector intersection (OR):
> v.overlay ainput=polbnda_germany binput=clipmap output=clipmap_intersection operator=or -t
> 
> 
> I guess the manual is correct and the tutorial has to be changed. 
 
Thanks, I have modified the turorial.

Markus