How can I place the component on the surface of wall? Here I placed which is rest with wall, How can I solve this?

the component should place on the surface of exterior or interior wall.
here it takes center line, which node I have to choose to change ?

Please find the image.

Hi @dhepi,

Welcome to the Dynamo Forum.

For the exterior or interior lines, you can use the Wall Edges References node.
For the faces, you can use the Compound Surfaces References node.

Exterior-interior line.dyn (28.1 KB)


Thank you @Alban_de_Chasteigner