I am looking to set a Key Schedule Parameter for Rooms based on their Name.
Collect All Rooms
Check their name against a list
If in the list, apply a specific “Occupancy Group” to them via a Key Schedule Parameter
The problem I have is that I am unable to get a “List” of available Parameters for that Schedule as Elements. I am open to Python and/or nodes just looking for some help here on the Parameter as Element part.
I am getting the Information, just not as Elements to Sort / Filter and Set.
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *
clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI import *
clr.AddReference('System')
from System.Collections.Generic import List
clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)
clr.ImportExtensions(Revit.Elements)
clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
uidoc=DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument
#Preparing input from dynamo to revit
viewSchedule = UnwrapElement(IN[0])
#Do some action in a Transaction
TransactionManager.Instance.EnsureInTransaction(doc)
elements = FilteredElementCollector(doc, viewSchedule.Id).ToElements()
params = []
names = []
for i in elements:
params.append(i.Parameters)
names.append(i.Name)
TransactionManager.Instance.TransactionTaskDone()
OUT = elements, names
That was a Zero Touch Node I made for my in house package, but the Python code provided should get you to the same place if someone else hasn’t developed a node at this point.
# Boilerplate text
import clr
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *
# Current doc/app/ui
doc = DocumentManager.Instance.CurrentDBDocument
# Define list/unwrap list functions
def uwlist(input):
result = input if isinstance(input, list) else [input]
return UnwrapElement(input)
# Preparing input from dynamo to revit
element = uwlist(IN[0])
sdef = element.Definition
fparams, pids, pnames = [],[],[]
# Do some action in a Transaction
count = sdef.GetFieldCount()
TransactionManager.Instance.EnsureInTransaction(doc)
for i in range(0, count, 1):
field = sdef.GetField(i)
pids.append(field.ParameterId)
ele = doc.GetElement(field.ParameterId)
fparams.append(ele)
try:
pnames.append(ele.Name)
except:
pnames.append(None)
TransactionManager.Instance.TransactionTaskDone()
# Preparing output to Dynamo
OUT = fparams, pnames, pids
Looks like they can’t be passed as wrapped elements so you’ll need to combine them later in a Python script to check their properties probably.
is possible to get the Schedulable Fields of the schedule instead of the Fields that are already there? if that works for a list of schedules as input would be great as well. Many thanks for your help
This gets you the possible fields by Id, but it looks to be a lot of them (more than the UI sees):
# Preparing input from dynamo to revit
element = uwlist(IN[0])
sdef = element.Definition
fids = []
# Do some action in a Transaction
fields = sdef.GetSchedulableFields()
for f in fields:
fid = f.ParameterId
fids.append(fid)
# Preparing output to Dynamo
OUT = fids
I tested both python scripts, the first that gets the IDs of the Fields on schedule gets all Nulls in output fparams and pnames, although pids gets right result, which is what I am looking for.
@GavinCrump wether if I get the scheduled fields or schedulable fields of the schedule, the ID -1152353 is not found in the builtin parameters of Revit, why? I am questioning if the clockwork node is missing some builtin parameters.
@jacob.small from a schedule to get elements, but also parameter IDs of the schedule fields, because no idea if the parameters are builtin, custom and where are they coming from, a family parameter or what?
@GavinCrump Interesting, your package node gets parameters as elements, but is possible to retieve more information about them with Dynamo OOTB nodes? what is possible to do with them?
I found Orchid package node ID to Parameter, unfortunately does not work in that example
I want to make sure that the data defined to use in a project will be usable when the time comes, for example I know subcategories of bolts, anchors, plates, etc have lack of common data structure.
Those parameters are either user defined or shared. Builtin parameters don’t appear to be define-able in Dynamo in the same way. They’re passable as Revit.db elements I think, so can be fed into Python nodes or held within them for further analysis.
I’d suggest digging into Clockwork and Genius Loci which have heaps of parameter based nodes that can check instance/type etc., as well as searching in the Revit API (I know you said you’re not experienced with Python, but if you’re trying to do stuff like this then it is time for this as well I’d say). Look into the Revit lookup tool as well to snoop their properties.
Noting we have addressed the initial query in this thread as well, it would be better to do some research now and come back next time you hit a road block.
