As most Revit users have found a custom curtain panel family can only be rectangular in shape. Anything that becomes non-rectangular will be replaced with a system panel, either empty or solid, as seen in the image below.
I have used several workarounds in the past depending on the panel being used. This week I recently decided to use a common family type that I use to solve alot of Revit limitations and that is the use of an adaptive component family. What I realized is that even when a panel is changed to the Empty System Panel type there are still 6 faces to this invisible element. Which means we can snap to any of those surfaces or corners. Plus a System Panel Solid is then changed to an Empty panel they both have 6 surfaces. I used the default System Panel Solid to snap my adaptive panel to, then I changed it out to and Empty panel the adaptive point stayed. If the grid lines move in the curtain wall design the adaptive panels will adjust with the changes. The…