[Qgis-user] simplify feature

[Jan]

Thank you Giovanni.

I'll try it.


Giovanni Manghi schrieb:
> 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 --
> 
>