Flatten all walls faces visible in view to collect area

1

Hi all

I am working on problem statement wherein I have building elevations and I have to pull up the wall faces perpendicular to the view plane and collect a cumulative area for each wall type.

The major issue I am facing is the AllElementsOfCategoryInView node collects all the walls that come in the view’s far clip offset.

Has anyone worked on similar kind of problem?

Thanks in advance

2

I’d start with the all elements of category in view.

Then filter out types which you don’t care about - i.e. if you’re working on exterior walls filter out interior partitions.

Then extract all the surfaces of the walls with Element.Faces and flatten the list.

Then filter out faces which have a normal that isn’t 180 degrees from the view’s facing direction.

Then sum the area of the remaining surfaces.