Many thanks for this, I was aware (and did comment) I was being a bit lazy by copying multiple streams, so i do agree your solution is much more elegant and efficient.
However I am doing this at work and dont have a great deal of time, so it was a bit of a quick and dirty solution.
Given all the help and interest you have shown. Im having one final (hopefully) issue, I’m generating a swept recessed handrail void and this is intended to make it into RhinoInsideRevit.
I’m getting an error to do with the geometry of the void created and wondered if it was obvious where the bad geometry is being created. I note that when trying to sweep the profiles I get an error, whereby a loft does work .
Also the landing extension pieces my original query regarded are appearing as seperate curves. I recall when these are joined they still retain their original underlying seperate geometry and these typically have to be rebuilt to become a single curve (the domain of the extension also becomes a negative value i thought)
The outer curve solid is cutting and migrating into Revit fine, I just think i need to be as clean and accurate as possible. Which seems to be quite your forte! Its unfortunate as the geometry is successfully being made in rhino.
If you have chance to review that would be much appreciated.
(As an aside I note in your definition you have used entwine - i have typically used merge when combining information, but it often combines in ways i dont realy want so often end up transforming data afterwards, so moving forward i will test entwine and merge when combining. I always enjoy looking at the variety of approaches (and elegance of some peoples definitions!)
Apologies @Adam_M , see attached i’ve opened this definition in a blank rhino file so shoudl work
Also as mentioned its tricky as the geometry is creating in rhino, i guess as mentioned itd be goo just to make as cleanly as possible and see if that works
Thanks again, yes path was incorrect, i hadnt saved. I’ve been dragged onto other things, but quickly came back to look at this, trying to rebuild the path curve and create as clean as possible geometry. I’ve amended the extended curve to pull the points and then interpolate again which looks like a vey clean and ordered set of points and Brep.
The definition is mentioning micro edges which I’m not how how to avoid creation of