Wall.ByFace from Element.Faces

[johnson]

I’m trying to create a Mass instance in my dynamo script, and then create a Wall by Face from it. When I do, I get this error:

“Warning: Wall.ByFace operation failed.
The selected face cannot be used to create a wall. Please use a mass face instead.”

I’m confused, because I think it is a mass face. It doesn’t seem to make a difference how I create the mass- is there another way to extract the faces?

P.S. if you’re wondering why I don’t feed “select face” directly into “wall.byface”, I’m eventually trying to get faces from a Rhino import.

element faces error.dyn (8.6 KB)

[m.rijsmus]

do you run this script in the project or the mass family environment?

[johnson]

In the project. It creates the mass correctly, gets the face, but the Wall.ByFace component fails.

Curiously, if I replace Wall.ByFace with CurtainSystem.ByFace everything works correctly, except that I want a wall and not a curtain system.

[m.rijsmus]

The notorious a wall can’t be horizontal problem maybe?

[johnson]

Afraid not, it’s a perfectly normal vertical face for testing purposes.