[OSGeo Africa] QGIS splitting lines at intersections

[Zoltan]

Hi Gavin,
I did see the one using "another layer", but that is problematic as when 
one is digitising (say) a town road network you would want to honour the 
straightness of the roads and then intersect them afterwards.
Hence "popping out" to other facilities just messes up your work-flow.

Will look at the scripting options  - for now this is just a training 
exercise in teaching digitising principals.

Thanks & keep well,
Zoltan

On 2016/07/19 11:00, Gavin Fleming wrote:
> Hi Zoltan
>
> The DigitizingTools plugin has a tool to split lines in place using 
> selected lines from /another/ layer.
>
> I would put them through v.clean in GRASS but that of course doesn't 
> do it in place. Perhaps some of these scripted solutions will do the 
> trick:
>
> http://gis.stackexchange.com/questions/72907/split-a-feature-when-intersecting-with-a-feature-of-another-layer-using-pyqgis-p
>
> http://gis.stackexchange.com/questions/98087/split-lines-at-intersection-of-other-lines
>
> Gavin
>
> On 19/07/2016 10:28, Zoltan wrote:
>> Hi,
>> Is there a way to split lines where they crossover other lines in the 
>> same (shapefile) layer, without having to save to a new layer?
>>
>> All the line intersection solutions thrown up by google require you 
>> to save the results in a new layer file.
>>
>> Thanks,
>> Zoltan
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>
>
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