Can't join two straight lines that share a common point

[joshude]

Having an issue joining two surfaces that were constructed using one common line. Even when drilled down to deconstructing - reconstructing 3 points and trying to join two lines that share a similar point there is an issue. What is going on here?Surfaces and lines wont Join.gh (24.6 KB)

[Michael_Pryor (ekim)]

You need to flatten the inputs.

Take a look here to learn about data trees: http://grasshopperprimer.com/en/1-foundations/1-5/0_designing-with-data-trees.html

[joshude]

Thanks again Michael, your the best. But I still don’t understand why
A) the original two ruled surfaces wouldn’t join?
B) and even stranger…why the individual lines that share a common point won’t join?

[Michael_Pryor (ekim)]

Everything in your file seems to join fine if you make the lists correct (flatten)

[joshude]

right, Definitely learned that the hard way. Thank you.