line.GetEndPointReference() return by None in Revit 2019

[Ysuuny]

Hi,

I'm try to get line reference for using newAlignment().

but, It's return None....

e = doc.GetElement(face.ElementId) # FamilyInstance 
faceEle = e.GetGeometryObjectFromReference(face) # PlanarFace 
face_list = faceEle.GetEdgesAsCurveLoops()  # List[CurveLoop]
       
ele_line=face_list[0]

option = opt() # => from Autodesk.Revit.DB import Options as opt
option.ComputeReferences = True
option.IncludeNonVisibleObjects = True 

for i in ele_line:
        print(i.GetEndPointReference(0)) # None
	print(i.Reference) # None

▲ The above code is part of the code.

Please help me.......

I using Revit 2019, Python 

* The translation can be strange.  : D 

[jeremytammik]

You want to use it to create a dimension or a constraint?

Well, that depends on the view, doesn't it?

Therefore, you should retrieve the view-specific geometry for the element.

Ensure that you can achieve what you want manually in the user interface first, before attacking it programmatically. That will ensure you have the right view selected.

I hope that helps.

[Ysuuny]

Thank for your quick reply,  jeremytammik!

Sadly.... e.ViewSpecific return by False.

How can i do?