Get elements from linked file issue

[Thomas_Mahon]

It’s highly likely to be caused by the limitation with Link Instances I explained here:

Issue With Using BimorphNodes IntersectsElement node

Hi @jmmiller This is an interesting problem - thanks for reporting it. So first off, Element.IntersectsElement node does support elements from linked files (per se) as you’ve rightly pointed out. Which raises the question then, why is it not working? Well, I’ve investigated and found the source of the problem, which points towards a major limitation within Revit (as opposed to a bug). The problem is caused by the way Revit, and therefore the API, locates linked documents - it will always locat…

Unfortunately there are few options for the time being:
Option 1: Copy all elements so they are live in the model (@john_pierson covers this further in the thread above)

Option 2: Edit the source code of Tools.GetSurrondingElements and transform/translate the element Outlines and pass them into the filter (the node uses a filter from the Revit API which requires the element Outline to get any elements whos Oultines also intersect)

Option 3: Await the release of BimorphNodes v2.2 (in a few weeks) which includes BoundingBox.GetElementsIntersect node - it performs the same action as Tools.GetSurrondingElements but it will include a solution to the translation/transformation problems caused by elements derived from linked instances.