I am currently trying to brainstorm a workflow of how I could go about extracting the elevation of 3 existing profiles every 24 meters and then creating a PVI on a 4th profile at the lowest elevation of those 3.
For example, if at KP 0+024 I have three existing profiles with elevations 100, 200, 300 meters, on the dummy profile I’ve created I’d like for a PVI to be inserted at KP 0+024, and be at 100m elevation.
I know how I could do this but I can’t for the life of me come up with a node workflow.
Compile a list of stations that increase by 24
Compile a list of each profile and it’s elevations
Combined step 1 and 2 to create a third list that has stations every 24m and the associated elevations for the three profiles
filter this list to be the minimum elevation at each 24m interval
This should be a working workflow. I suggest the following:
Use the Profile.ElevationAtStation (I don’t know the exact name) node after getting the stations,
combine the 3 lists of elevations into 1 list (3 sublists) and transpose them, creating sublists containing the 3 elevations at each station so you can filter the lowest.
after that you can easily input the stations and the elevations.
Thank you I ended up making this one work with some modifications.
Your workflow creates the new profile prior collecting the start and stop chainage. This results in a 0 value for both cells as the new profile has 0 start and 0 end chainage. To fix this I deleted your profile new profile generator nodes and manually created a dummy profile with just 2 PVIs - 1 at the start of the profile view and one and the end of the profile view.
I also had to ensure this new profile is greater in elevation than the other profiles I have to ensure it doesnt snap to itself for new PVI generation.
