Create area defined by wall and boundary line

Hello! Does anyone know if it is possible to automate the placement of all boundary lines by wall centerline? I am looking seperate offset for each wall type.
I go through some similar topic but i didnt get clear idea
Am beginner in Dynamo + Revit Please guide me. My Code in improper

Hi Ziyad,

I suggest you to learn first fundamentals of Revit and Dynamo. One of the online resources for learning is

There are many other resources which you can find online.
Shortcuts will not help. You can’t do programming without understanding the basics. The above graph is not clear and proper to what your looking for.
Good Luck!

I know the above graph is not clear and proper, am trying to learn by doing stuff… please guide me how can achieve this. If you have any code please send me