Revit Footing location mark parameter from columns

[Joe.Charpentier]

This post will probably help you as well:

Columns with no foundation

Hi, (This is my first post here, so pardon me if I did not follow some of the community guidlines.) I am new to dynamo and revit. I want to find out the column location/mark/list that do not have a foundation associated with them. Revit does not seem to have any parameter that links foundation and columns, even thought if we place a foundation in the vicinity of a column, it attaches itself to the base of the column. But still, the host of a foundation shows up as a level. I used Revit Look…

One solution uses SteamNodes for the element proximity check.
The other uses an offset of the BoundingBox (SpringNodes) vs the insertion point of the foundation.