Conduit Fitting re-assign Level

[studio-a-int]

I'm testing a static code (Python) to re-assign level to Conduits + Conduit Fittings that were placed by BIM operators to a Level that we want to be changed.

When I run to code on a Conduit Fitting that is not connected to other Conduits, everything works fine (Conduit Fitting is maintaining same z)

Once I run the code on a Conduit Fitting that has Conduits attached to it, they move up (z changes).

Below is the Python code:

# CONDUIT FITTING TO TEST Id = 9803491
EL_ID = ElementId(9803491)
# SELECT THE CONDUIT FITTING TO TEST
MY_EL = doc.GetElement(EL_ID)

# B_FOOTING = CURRENT REFERENCE LEVEL FOR THE CONDUIT+CONDUIT FITTINGS
# FIRST_FLOOR = LEVEL WHERE I WANT THE CONDUIT+CONDUIT FITTINGS RE-ASSIGNED

# LEVEL ID WHERE I WANT MY CONDUIT FITTING TO BE SET
FIRST_FLOOR_LEVEL_ID = 355

t = Transaction(doc, 'SET LEVEL')
t.Start()
OFF_SET =  - FIRST_FLOOR_LEVEL_ELEV + B_FOOTING_LEVEL_ELEV + i.get_Parameter(BuiltInParameter.INSTANCE_FREE_HOST_OFFSET_PARAM).AsDouble()
MY_EL.get_Parameter(BuiltInParameter.INSTANCE_FREE_HOST_OFFSET_PARAM).Set(OFF_SET)     
MY_EL.get_Parameter(BuiltInParameter.FAMILY_LEVEL_PARAM).Set(ElementId(355))
doc.Regenerate()
t.Commit()

Help greatly appreciated.

Thank you.

[jeremytammik]

Dear Studio A,

Thank you for your query.

What happens when you perform the same operation manually in the user interface?

In general, the Revit API functionality will [pretty closely replicate the UI functionality with both its desired and possibly undesired features.

What happens if you disconnect the neighbouring conduits before executing the modification?

I hope this helps.

Best regards,

Jeremy

[jeremytammik]

Sorry, duplicated the answer due to network problems... and no possibility to delete the wrong answer here... please ignore.

[studio-a-int]

Jeremy - thanks for your reply.

As I mentioned in my initial post, if the electrical conduit fitting is not connected to any conduits, the code run without issues (I did test it on one-at-a-time conduit fittings, not on a collection).

If the conduit fitting has conduits attached, after the cod is run, the fitting + connected conduits are changing the elevation. So might be because Revit is considering the entire run.

I'm looking more in detail to test couple scenarios.

thank you.