[GRASS-user] Re: Building topologically correct stream network

[Jarek Jasiewicz]

Jarek Jasiewicz pisze:
>
>
> Markus Metz pisze:
>> Hi Jarek
>>
>> Jarek Jasiewicz wrote:
>>> Hi
>>>
>>> maybe this will help:
>>>
>>> http://gis.vsb.cz/GIS_Ostrava/GIS_Ova_2009/sbornik/Lists/Papers/060.pdf
>>
>> What were the limitations of the GRASS raster-to-vector conversion 
>> tools you encountered? 
> that problems are shown on fig 4)
>
> 1) streams directions are not correct (are random) because we have no 
> information about its directions in raster file
> 2) there are problems if streamlines toutch each other like
>
>
Opps... there is the problem in the paper: fig 3 shoud be fig 4 and fig 
4 shoud be 3 sorry ....
Jarek