[Qgis-user] simplify feature

[Giovanni Manghi]

Hi,


> "Tip 41 THE SIMPLIFY TOOL
> Note that the QGIS fTools plugin has a Simplify geometries tool that 
> works just like the GRASS
> v.generalize Douglas-Peuker algorithm."
> 
> This is available from Menu Tools > Geometry Tools and does not work as 
> I expected (due to wrong expectations?).



actually for big vector layers the grass module works much more
efficiently for me. You have also more options (more algorithms,
including smoothing ones), if you need them.




> Anyway I can not find the GRASS v.generalize module ... .-( sorry. What 
> is the "GRASS toolbox":
> (from docs)
> 
> "Open the GRASS toolbox and double click the categories Vector -> 
> Develop map -> General-
> ization, then click on the v.generalize module to open its options window."



You'll need to create a location and a mapset, then import your vector
in GRASS, then open the toolbox and use the generalize module.

The QGis manual is pretty clear on how begin with location and mapsets,
but if you need further assistance just drop a line.


cheers

-- Giovanni --