Hi Andreas,

In QGIS 2.18 / QGIS 3.0 this should be possible via expressions:

https://github.com/qgis/QGIS/commit/e110ba7d54b0ac7d3f63e8ed7eaebb2845f9f38c

Best regards
Matthias

On 09/07/2016 02:24 PM, Neumann, Andreas wrote:
> Hi,
> 
> A friend of mine asked me if QGIS can do linear referencing - e.g.
> symbolizing road data speed limits along a road, lets say from km 0 to
> 0.76 there is a limit of 50 km/h, from 0.76 to 1.23 there is 80 km/h
> limit, etc.
> 
> The idea is to symbolize these road segments without having to actually
> split the data into bits. And hopefully without having to generate
> derived tables that have no link to the original data.
> 
> Is QGIS able to do this, perhaps with a plugin?
> 
> Thanks for any hints,
> 
> Andreas
> 
>  
> 
> 
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