I am trying to variably pipe a bunch of curves, based on their distance to an attractor curve. I only need two radii, at the start and end of the curve. I am having trouble with inputting the associated data for the start and end of each curve. The variable pipe component is showing no warnings, says it has ‘run’ the appropriate amount of times, but has no output geometry.

I have had success doing this with a single pipe radius, using the midpoint for my ‘Curve Closest Point’ but it would be much cleaner if I can have the start and end radii line up between.

Not sure if this is what you’re after, but you can get start and end parameters by reparameterizing your curves and using 0 and 1 - also added an Explode Curves component because some of your inputs were polylines

This is precisely what I was looking for. I was not familiar with reparameterizing whatsoever. I really appreciate you taking the time to help a newbie like me out. Thank you so much!