[Qgis-user] Project polgyon on line

[Nicolas Cadieux]

Hi,

I am not quite sure what you want to do but you may want to do steps like « polygon to line », « explode » or « extract vertices ».  This could permit you to get the features that you need to complete your manipulations. 

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 19 nov. 2021 à 06:22, Roland Spielhofer <rspiel at gmx.net> a écrit :
> 
> 
> Hi,
> I have polgyons along/around a line and would like to generate linear features from the polygons.
> To better explain I made a sketch:
> https://imgur.com/a/vzQ80JW
>  
> What I want is the red liniear segment. Ideally my black line has m-values and I get the start- and end M of the red line.
> I already located point features along routes - but how to do this with polygons?
>  
> Any hints appreciated!
> Roland
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