Test - Lines.dyn (99.8 KB)
Try this, it’s the same approach, but just using floors’ curves to perform the intersection and a few basic calculations to get the area from that.
It will definitely be faster. I am simply projecting curves on the plane, defined by each level, in order to make up for floors with different thickness. Just keep in mind in this case your model should be precise. If you have floor slab contours, that are slightly off each other, they will not be intersected. This is why the solids’ approach is slower, but more secure.
Other than that, to get a better precision, combined with optimal speed, you would need to perform the time-consuming operations, using the API directly