So, unfortunately I found a problem with my graph for dimensioning walls…
If the walls aren’t split at intersect, parts fail…
This is because there isn’t a Face at the intersection… For it to work i would need to get the faces of the intersecting wall and use those…
Right now my head has given out, would anyone mind lending a hand?
Thanks,
Mark
DimWallsIntersect-cut.dyn (33.4 KB)
WallsIntersect.rvt (1.7 MB)
Hi Mark 
Would it help if you could separate the Surfaces in a way that each sublist of walls represent a continuous Solid (thus, indirectly splitting the wall in two different walls) ? (Meaning that in your example, you would separate the output of Topology.Faces in two sublists ?)
If so, I might have a way to do it !
Hey guys,
TBH I’m just touched that someone out there is listening 
You know those nights when the kids just don’t sleep and you abstract thought is quite tough?!
@mellouze Yes I think that is right, work out which surfaces are intersecting, get them from the other wall and reorder…
@Kulkul Ideally the intersecting wall faces… But heck I’ll take anything 
Thanks,
Mark
Hope this helps you
Edit : The PolySurface.ExtractSolids node returns two separate solids (forgot the preview)
@mellouze Thanks for trying, unfortunately I need Faces and this method loses that connection with the Element, so I can’t get Face References, which are necessary for dimensioning…
Couldn’t you get the structure you get from my method (with indices, sub-lists, etc.), and then re-order the faces of your element accordingly ?
Hey, probably, with a bit more sleep…
It will get quite complex because the wall surface lists will be cross referencing each other and picking each others indexes…
Thanks,
Mark
@Mark.Ackerley Try the attached script Dim Walls.dyn (7.1 KB) Big thanks to @Daniel_Woodcock1 for his support.
Thanks @Kulkul & @Daniel_Woodcock1 that’s amazing!
Unfortunately it’s just too good!
My Python skills will require a huge amount of improvement to be able to tailor this to my graph. Right now I can’t even make it work in a plan view 
Thanks again,
Mark
Haha! Very honest of you @Mark.Ackerley ! I’m sure your python skills will improve every day!
I see you have that piece of cake icon, Happy Dynamoversary! 
