Hi Daniel, thanks a lot for your quick response!
Drawing another polyline at the upper limit is not really an option for me, unfortunately.
This is what I am trying to do, explained in more detail: The lower limits (base) for all rock walls I am investigating in my PhD are glacier surfaces. I'd like to show how certain 'rock wall parameters' (e.g. surface characteristics, rockfall activity etc.) vary with increasing (vertical) distance to the glacier surface. To do so I want to classify my rock walls into 10m sections (-> Section 1: 0-10m, Section 2: 10-20m, Section 3: 20-30m,...). In the next step I could then calculate the 'rock wall parameters' for each of the sections. (Note: The glacier surface is not even, so I cannot simply use the z-values.)
I uploaded a screenshot of one of my rock walls. The glacier at the base of the rock wall is almost completely cut out already. The maximum vertical extent is approx. 70m (just to help your imagination).
Again thanks in advance!
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