Create Filled Region on Elements' Boundaries

We’re trying to streamline our space planning process. We currently use a plan with a color legend by Room Department, but we have workstations in open-office rooms that need to be colored too. We can’t create rooms for each workstation because we need to keep singular Open Office rooms for entire spaces. We’ve considered using Area Plans but they’ll duplicate a lot of information, and we want to try Filled Regions first.

TL;DR:
We want to generate filled regions using element boundaries. For example, for any given list of furniture elements, create a single filled region using their combined extents. Is this possible?

Update: Attached an image of what we ultimately want our plans to look like. Right now we’re using the embedded Detail Component. This contains multiple colored filled regions tied to yes/no parameters and Family Types. The Furniture Family has a Detail Item parameter to switch between types (and therefore colors).

It should be possible, try the steps
1.create bounding box with elements
2.project it on the surface (floor)
3.Create filed regions with those project lines.,

Btw, How usefull can this be??, Why dont you create a parameter on furniture for department of room it belongs to and use that parameter in view filter to color code the furniture.?

I’m struggling to create a bounding box that’s tight to the elements’ extents.

We want the furniture itself to be white, but have a colored box on the “floor” similar to how the Room Department Color Legend displays under the furniture. I currently have nested a filled region detail family into our workstation blocks, but it’s clunky to set up and will be a hassle if we want to add more colors, use it for different furniture, etc.

see if this helps…!

image

It only works if the workstations are orthogonal: if they’re rotated, the 2Drectangle node just makes a box around the edges.

I’ve tried rotating it but it somehow makes the geometry larger than the object. Also, the geometry doesn’t include nested families or reference plane boundaries (for the aisles & space behind the desk), and doesn’t work if we have an L-shaped configuration of workstations unless we split it into multiple filled regions (it fills in the “gap” in the L when done as a whole union).

I’ve about abandoned this, the nested filled region detail families will work for now. Thanks for your help though!