Hello,
you can try with this example (assuming the cropbox is rectangular, if not, it is necessary to use solid intersection process as @Mark.Ackerley mentioned)
Hello
try this version
[select link Elements in Active view]
#written by Cyril P
import clr
clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
doc = DocumentManager.Instance.CurrentDBDocument
lnkInstance = UnwrapElement(IN[0])
category = UnwrapElement(IN[1])
transf =lnkInstance.GetTotalTransform()
actView = doc.ActiveView
doclnk = lnkInstance.GetLinkDocu…