[Qgis-user] Split line into multiple lines at nodes

[Micha Silver]

On 16/09/2010 13:13, Ghislain Picard wrote:
>
> No it's different. The tools "single parts to multipart" converts 
> feature made of several disjoint parts into several features.
>
Ah, I misunderstood. You want to actually split the line up at every vertex?
If you're using GRASS, then I can suggest a two step procedure:
You get all the vertex coordinates into a text file using v.to.points -v
Then loop thru the text file and use each pair of coords as input to 
v.edit tool=break coords=x,y
A bit fiddly but it should give you a vector with each line segment as a 
separate feature.

>
>
> On 09/16/2010 08:53 AM, Micha Silver wrote:
>> On 15/09/2010 21:50, Ghislain Picard wrote:
>>>
>>>
>>> Hi,
>>>
>>> I have one trajectory made of several segments in a shapefile and 
>>> would like to convert this into the individual segments
>>> An example is here:
>>> http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=Split_Line_At_Vertices_%28Data_Management%29 
>>>
>>>
>>> How to do this with QGis ?
>> I think what you want is:
>> Vector->Geometry Tools->Single parts to multipart
>>>
>>> Cheers,
>>> Ghislain
>>>
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>>>
>>>
>>
>>
>
>


-- 
Micha Silver
http://www.surfaces.co.il/
Arava Development Co.  +972-52-3665918