Example of multiple floors creation for a given list of levels

DynamoNewFloorByLevels.py

import clr

clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *

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

#Preparing input from dynamo to revit
lines = IN[0].ToRevitType()
floorType = UnwrapElement(IN[1])
levels = IN[2]
isStructural = IN[3]
randomNumbers = IN[4]

boundary = CurveArray()

#Filling the CurveArray
for i in lines:
	boundary.Append(i)
	
#Here we will store the created floors	
floors = []

#Do the action in a Transaction
TransactionManager.Instance.EnsureInTransaction(doc)

for level, randomRotation in zip(levels,randomNumbers):
 	floor = doc.Create.NewFloor(boundary,floorType,UnwrapElement(level),isStructural)
 	
 	floorOffset = floor.get_Parameter(BuiltInParameter.FLOOR_HEIGHTABOVELEVEL_PARAM)
 	floorOffset.Set(0)
 	
 	ElementTransformUtils.RotateElement(doc,floor.Id,Line.CreateBound(XYZ(0,0,0),XYZ(0,0,1)),randomRotation*360)
 	
 	floors.append(floor)
 	
TransactionManager.Instance.TransactionTaskDone()

OUT = floors

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